662 lines
24 KiB
C#
662 lines
24 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="CommandField.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI.WebControls {
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Drawing.Design;
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using System.Globalization;
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/// <devdoc>
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/// <para>Creates a special field with buttons for <see langword='Edit'/>,
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/// <see langword='Update'/>, and <see langword='Cancel'/> commands to edit items
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/// within the selected row.</para>
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/// </devdoc>
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public class CommandField : ButtonFieldBase {
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/// <devdoc>
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/// <para>Initializes a new instance of an <see cref='System.Web.UI.WebControls.CommandField'/> class.</para>
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/// </devdoc>
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public CommandField() {
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_CancelImageUrl),
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UrlProperty()
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]
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public virtual string CancelImageUrl {
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get {
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object o = ViewState["CancelImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["CancelImageUrl"])) {
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ViewState["CancelImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='Cancel'/> command button
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/// in the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultCancelCaption),
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WebSysDescription(SR.CommandField_CancelText)
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]
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public virtual string CancelText {
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get {
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object text = ViewState["CancelText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultCancelCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["CancelText"])) {
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ViewState["CancelText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Behavior"),
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DefaultValue(true),
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WebSysDescription(SR.ButtonFieldBase_CausesValidation)
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]
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public override bool CausesValidation {
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get {
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object o = ViewState["CausesValidation"];
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if (o != null) {
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return (bool)o;
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}
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return true;
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}
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set {
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base.CausesValidation = value;
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}
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_DeleteImageUrl),
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UrlProperty()
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]
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public virtual string DeleteImageUrl {
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get {
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object o = ViewState["DeleteImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["DeleteImageUrl"])) {
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ViewState["DeleteImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='Delete'/> command button in
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/// the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultDeleteCaption),
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WebSysDescription(SR.CommandField_DeleteText)
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]
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public virtual string DeleteText {
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get {
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object text = ViewState["DeleteText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultDeleteCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["DeleteText"])) {
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ViewState["DeleteText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_EditImageUrl),
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UrlProperty()
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]
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public virtual string EditImageUrl {
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get {
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object o = ViewState["EditImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["EditImageUrl"])) {
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ViewState["EditImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='Edit'/> command button in
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/// the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultEditCaption),
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WebSysDescription(SR.CommandField_EditText)
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]
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public virtual string EditText {
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get {
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object text = ViewState["EditText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultEditCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["EditText"])) {
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ViewState["EditText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_InsertImageUrl),
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UrlProperty()
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]
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public virtual string InsertImageUrl {
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get {
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object o = ViewState["InsertImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["InsertImageUrl"])) {
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ViewState["InsertImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='Insert'/> command button
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/// in the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultInsertCaption),
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WebSysDescription(SR.CommandField_InsertText)
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]
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public virtual string InsertText {
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get {
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object text = ViewState["InsertText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultInsertCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["InsertText"])) {
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ViewState["InsertText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_NewImageUrl),
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UrlProperty()
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]
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public virtual string NewImageUrl {
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get {
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object o = ViewState["NewImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["NewImageUrl"])) {
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ViewState["NewImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='New'/> command button
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/// in the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultNewCaption),
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WebSysDescription(SR.CommandField_NewText)
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]
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public virtual string NewText {
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get {
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object text = ViewState["NewText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultNewCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["NewText"])) {
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ViewState["NewText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Appearance"),
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DefaultValue(""),
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Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
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WebSysDescription(SR.CommandField_SelectImageUrl),
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UrlProperty()
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]
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public virtual string SelectImageUrl {
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get {
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object o = ViewState["SelectImageUrl"];
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if (o != null) {
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return (string)o;
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}
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return String.Empty;
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}
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set {
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if (!String.Equals(value, ViewState["SelectImageUrl"])) {
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ViewState["SelectImageUrl"] = value;
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OnFieldChanged();
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}
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}
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}
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/// <devdoc>
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/// <para>Indicates the text to display for the <see langword='Select'/> command button
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/// in the field.</para>
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/// </devdoc>
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[
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WebCategory("Appearance"),
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Localizable(true),
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WebSysDefaultValue(SR.CommandField_DefaultSelectCaption),
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WebSysDescription(SR.CommandField_SelectText)
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]
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public virtual string SelectText {
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get {
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object text = ViewState["SelectText"];
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return text == null ? SR.GetString(SR.CommandField_DefaultSelectCaption) : (string)text;
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}
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set {
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if (!String.Equals(value, ViewState["SelectText"])) {
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ViewState["SelectText"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Behavior"),
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DefaultValue(true),
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WebSysDescription(SR.CommandField_ShowCancelButton)
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]
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public virtual bool ShowCancelButton {
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get {
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object o = ViewState["ShowCancelButton"];
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if (o != null) {
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return (bool)o;
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}
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return true;
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}
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set {
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object oldValue = ViewState["ShowCancelButton"];
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if (oldValue == null || (bool)oldValue != value) {
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ViewState["ShowCancelButton"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Behavior"),
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DefaultValue(false),
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WebSysDescription(SR.CommandField_ShowDeleteButton)
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]
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public virtual bool ShowDeleteButton {
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get {
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object o = ViewState["ShowDeleteButton"];
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if (o != null) {
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return (bool)o;
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}
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return false;
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}
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set {
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object oldValue = ViewState["ShowDeleteButton"];
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if (oldValue == null || (bool)oldValue != value) {
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ViewState["ShowDeleteButton"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Behavior"),
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DefaultValue(false),
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WebSysDescription(SR.CommandField_ShowEditButton)
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]
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public virtual bool ShowEditButton {
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get {
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object o = ViewState["ShowEditButton"];
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if (o != null) {
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return (bool)o;
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}
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return false;
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}
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set {
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object oldValue = ViewState["ShowEditButton"];
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if (oldValue == null || (bool)oldValue != value) {
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ViewState["ShowEditButton"] = value;
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OnFieldChanged();
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}
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}
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}
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[
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WebCategory("Behavior"),
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DefaultValue(false),
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WebSysDescription(SR.CommandField_ShowSelectButton)
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]
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public virtual bool ShowSelectButton {
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get {
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object o = ViewState["ShowSelectButton"];
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if (o != null) {
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return (bool)o;
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}
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return false;
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}
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|
set {
|
||
|
|
object oldValue = ViewState["ShowSelectButton"];
|
||
|
|
if (oldValue == null || (bool)oldValue != value) {
|
||
|
|
ViewState["ShowSelectButton"] = value;
|
||
|
|
OnFieldChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
[
|
||
|
|
WebCategory("Behavior"),
|
||
|
|
DefaultValue(false),
|
||
|
|
WebSysDescription(SR.CommandField_ShowInsertButton)
|
||
|
|
]
|
||
|
|
public virtual bool ShowInsertButton {
|
||
|
|
get {
|
||
|
|
object o = ViewState["ShowInsertButton"];
|
||
|
|
if (o != null) {
|
||
|
|
return (bool)o;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
set {
|
||
|
|
object oldValue = ViewState["ShowInsertButton"];
|
||
|
|
if (oldValue == null || (bool)oldValue != value) {
|
||
|
|
ViewState["ShowInsertButton"] = value;
|
||
|
|
OnFieldChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
[
|
||
|
|
WebCategory("Appearance"),
|
||
|
|
DefaultValue(""),
|
||
|
|
Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
|
||
|
|
WebSysDescription(SR.CommandField_UpdateImageUrl),
|
||
|
|
UrlProperty()
|
||
|
|
]
|
||
|
|
public virtual string UpdateImageUrl {
|
||
|
|
get {
|
||
|
|
object o = ViewState["UpdateImageUrl"];
|
||
|
|
if (o != null) {
|
||
|
|
return (string)o;
|
||
|
|
}
|
||
|
|
return String.Empty;
|
||
|
|
}
|
||
|
|
set {
|
||
|
|
if (!String.Equals(value, ViewState["UpdateImageUrl"])) {
|
||
|
|
ViewState["UpdateImageUrl"] = value;
|
||
|
|
OnFieldChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// <devdoc>
|
||
|
|
/// <para>Indicates the text to display for the <see langword='Update'/> command button
|
||
|
|
/// in the field.</para>
|
||
|
|
/// </devdoc>
|
||
|
|
[
|
||
|
|
WebCategory("Appearance"),
|
||
|
|
Localizable(true),
|
||
|
|
WebSysDefaultValue(SR.CommandField_DefaultUpdateCaption),
|
||
|
|
WebSysDescription(SR.CommandField_UpdateText)
|
||
|
|
]
|
||
|
|
public virtual string UpdateText {
|
||
|
|
get {
|
||
|
|
object text = ViewState["UpdateText"];
|
||
|
|
return text == null ? SR.GetString(SR.CommandField_DefaultUpdateCaption) : (string)text;
|
||
|
|
}
|
||
|
|
set {
|
||
|
|
if (!String.Equals(value, ViewState["UpdateText"])) {
|
||
|
|
ViewState["UpdateText"] = value;
|
||
|
|
OnFieldChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void AddButtonToCell(DataControlFieldCell cell, string commandName, string buttonText, bool causesValidation, string validationGroup, int rowIndex, string imageUrl) {
|
||
|
|
IButtonControl button;
|
||
|
|
IPostBackContainer container = Control as IPostBackContainer;
|
||
|
|
bool setCausesValidation = true; // the setter on the DataControlButtons throw if there's a container for security
|
||
|
|
|
||
|
|
switch (ButtonType) {
|
||
|
|
case ButtonType.Link: {
|
||
|
|
if (container != null && !causesValidation) {
|
||
|
|
button = new DataControlLinkButton(container);
|
||
|
|
setCausesValidation = false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
button = new DataControlLinkButton(null);
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case ButtonType.Button: {
|
||
|
|
if (container != null && !causesValidation) {
|
||
|
|
button = new DataControlButton(container);
|
||
|
|
setCausesValidation = false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
button = new Button();
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case ButtonType.Image:
|
||
|
|
default: {
|
||
|
|
if (container != null && !causesValidation) {
|
||
|
|
button = new DataControlImageButton(container);
|
||
|
|
setCausesValidation = false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
button = new ImageButton();
|
||
|
|
}
|
||
|
|
|
||
|
|
((ImageButton)button).ImageUrl = imageUrl;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
button.Text = buttonText;
|
||
|
|
button.CommandName = commandName;
|
||
|
|
button.CommandArgument = rowIndex.ToString(CultureInfo.InvariantCulture);
|
||
|
|
if (setCausesValidation) {
|
||
|
|
button.CausesValidation = causesValidation;
|
||
|
|
}
|
||
|
|
button.ValidationGroup = validationGroup;
|
||
|
|
|
||
|
|
cell.Controls.Add((WebControl)button);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
protected override void CopyProperties(DataControlField newField) {
|
||
|
|
((CommandField)newField).CancelImageUrl = CancelImageUrl;
|
||
|
|
((CommandField)newField).CancelText = CancelText;
|
||
|
|
((CommandField)newField).DeleteImageUrl = DeleteImageUrl;
|
||
|
|
((CommandField)newField).DeleteText = DeleteText;
|
||
|
|
((CommandField)newField).EditImageUrl = EditImageUrl;
|
||
|
|
((CommandField)newField).EditText = EditText;
|
||
|
|
((CommandField)newField).InsertImageUrl = InsertImageUrl;
|
||
|
|
((CommandField)newField).InsertText = InsertText;
|
||
|
|
((CommandField)newField).NewImageUrl = NewImageUrl;
|
||
|
|
((CommandField)newField).NewText = NewText;
|
||
|
|
((CommandField)newField).SelectImageUrl = SelectImageUrl;
|
||
|
|
((CommandField)newField).SelectText = SelectText;
|
||
|
|
((CommandField)newField).UpdateImageUrl = UpdateImageUrl;
|
||
|
|
((CommandField)newField).UpdateText = UpdateText;
|
||
|
|
((CommandField)newField).ShowCancelButton = ShowCancelButton;
|
||
|
|
((CommandField)newField).ShowDeleteButton = ShowDeleteButton;
|
||
|
|
((CommandField)newField).ShowEditButton = ShowEditButton;
|
||
|
|
((CommandField)newField).ShowSelectButton = ShowSelectButton;
|
||
|
|
((CommandField)newField).ShowInsertButton = ShowInsertButton;
|
||
|
|
base.CopyProperties(newField);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected override DataControlField CreateField() {
|
||
|
|
return new CommandField();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// <devdoc>
|
||
|
|
/// <para>Initializes a cell within the field.</para>
|
||
|
|
/// </devdoc>
|
||
|
|
public override void InitializeCell(DataControlFieldCell cell, DataControlCellType cellType, DataControlRowState rowState, int rowIndex) {
|
||
|
|
base.InitializeCell(cell, cellType, rowState, rowIndex);
|
||
|
|
bool showEditButton = ShowEditButton;
|
||
|
|
bool showDeleteButton = ShowDeleteButton;
|
||
|
|
bool showInsertButton = ShowInsertButton;
|
||
|
|
bool showSelectButton = ShowSelectButton;
|
||
|
|
bool showCancelButton = ShowCancelButton;
|
||
|
|
bool isFirstButton = true;
|
||
|
|
bool causesValidation = CausesValidation;
|
||
|
|
string validationGroup = ValidationGroup;
|
||
|
|
LiteralControl spaceControl;
|
||
|
|
|
||
|
|
if (cellType == DataControlCellType.DataCell) {
|
||
|
|
if ((rowState & (DataControlRowState.Edit | DataControlRowState.Insert)) != 0) {
|
||
|
|
if ((rowState & DataControlRowState.Edit) != 0 && showEditButton) {
|
||
|
|
AddButtonToCell(cell, DataControlCommands.UpdateCommandName, UpdateText, causesValidation, validationGroup, rowIndex, UpdateImageUrl);
|
||
|
|
if (showCancelButton) {
|
||
|
|
spaceControl = new LiteralControl(" ");
|
||
|
|
cell.Controls.Add(spaceControl);
|
||
|
|
AddButtonToCell(cell, DataControlCommands.CancelCommandName, CancelText, false, String.Empty, rowIndex, CancelImageUrl);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
if ((rowState & DataControlRowState.Insert) != 0 && showInsertButton) {
|
||
|
|
AddButtonToCell(cell, DataControlCommands.InsertCommandName, InsertText, causesValidation, validationGroup, rowIndex, InsertImageUrl);
|
||
|
|
if (showCancelButton) {
|
||
|
|
spaceControl = new LiteralControl(" ");
|
||
|
|
cell.Controls.Add(spaceControl);
|
||
|
|
AddButtonToCell(cell, DataControlCommands.CancelCommandName, CancelText, false, String.Empty, rowIndex, CancelImageUrl);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (showEditButton) {
|
||
|
|
AddButtonToCell(cell, DataControlCommands.EditCommandName, EditText, false, String.Empty, rowIndex, EditImageUrl);
|
||
|
|
isFirstButton = false;
|
||
|
|
}
|
||
|
|
if (showDeleteButton) {
|
||
|
|
if (isFirstButton == false) {
|
||
|
|
spaceControl = new LiteralControl(" ");
|
||
|
|
cell.Controls.Add(spaceControl);
|
||
|
|
}
|
||
|
|
AddButtonToCell(cell, DataControlCommands.DeleteCommandName, DeleteText, false, String.Empty, rowIndex, DeleteImageUrl);
|
||
|
|
isFirstButton = false;
|
||
|
|
}
|
||
|
|
if (showInsertButton) {
|
||
|
|
if (isFirstButton == false) {
|
||
|
|
spaceControl = new LiteralControl(" ");
|
||
|
|
cell.Controls.Add(spaceControl);
|
||
|
|
}
|
||
|
|
AddButtonToCell(cell, DataControlCommands.NewCommandName, NewText, false, String.Empty, rowIndex, NewImageUrl);
|
||
|
|
isFirstButton = false;
|
||
|
|
}
|
||
|
|
if (showSelectButton) {
|
||
|
|
if (isFirstButton == false) {
|
||
|
|
spaceControl = new LiteralControl(" ");
|
||
|
|
cell.Controls.Add(spaceControl);
|
||
|
|
}
|
||
|
|
AddButtonToCell(cell, DataControlCommands.SelectCommandName, SelectText, false, String.Empty, rowIndex, SelectImageUrl);
|
||
|
|
isFirstButton = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <devdoc>
|
||
|
|
/// <para>Override with an empty body if the field's controls all support callback.
|
||
|
|
/// Otherwise, override and throw a useful error message about why the field can't support callbacks.</para>
|
||
|
|
/// </devdoc>
|
||
|
|
public override void ValidateSupportsCallback() {
|
||
|
|
if (ShowSelectButton) {
|
||
|
|
throw new NotSupportedException(SR.GetString(SR.CommandField_CallbacksNotSupported, Control.ID));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|