Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebControls/EditCommandColumn.cs

@@ -0,0 +1,207 @@
+//------------------------------------------------------------------------------
+// <copyright file="EditCommandColumn.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+    using System.Web.UI;
+
+    /// <devdoc>
+    /// <para>Creates a special column with buttons for <see langword='Edit'/>,
+    /// <see langword='Update'/>, and <see langword='Cancel'/> commands to edit items
+    ///    within the selected row.</para>
+    /// </devdoc>
+    public class EditCommandColumn : DataGridColumn {
+
+
+        /// <devdoc>
+        /// <para>Initializes a new instance of an <see cref='System.Web.UI.WebControls.EditCommandColumn'/> class.</para>
+        /// </devdoc>
+        public EditCommandColumn() {
+        }
+
+
+
+        /// <devdoc>
+        ///    <para>Indicates the button type for the column.</para>
+        /// </devdoc>
+        [
+        DefaultValue(ButtonColumnType.LinkButton)
+        ]
+        public virtual ButtonColumnType ButtonType {
+            get {
+                object o = ViewState["ButtonType"];
+                if (o != null)
+                    return(ButtonColumnType)o;
+                return ButtonColumnType.LinkButton;
+            }
+            set {
+                if (value < ButtonColumnType.LinkButton || value > ButtonColumnType.PushButton) {
+                    throw new ArgumentOutOfRangeException("value");
+                }
+                ViewState["ButtonType"] = value;
+                OnColumnChanged();
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Indicates the text to display for the <see langword='Cancel'/> command button
+        ///    in the column.</para>
+        /// </devdoc>
+        [
+        Localizable(true),
+        DefaultValue("")
+        ]
+        public virtual string CancelText {
+            get {
+                object o = ViewState["CancelText"];
+                if (o != null)
+                    return(string)o;
+                return String.Empty;
+            }
+            set {
+                ViewState["CancelText"] = value;
+                OnColumnChanged();
+            }
+        }
+
+
+        [
+        DefaultValue(true),
+        ]
+        public virtual bool CausesValidation {
+            get {
+                object o = ViewState["CausesValidation"];
+                if (o != null) {
+                    return (bool)o;
+                }
+                return true;
+            }
+            set {
+                ViewState["CausesValidation"] = value;
+                OnColumnChanged();
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Indicates the text to display for the <see langword='Edit'/> command button in
+        ///    the column.</para>
+        /// </devdoc>
+        [
+        Localizable(true),
+        DefaultValue("")
+        ]
+        public virtual string EditText {
+            get {
+                object o = ViewState["EditText"];
+                if (o != null)
+                    return(string)o;
+                return String.Empty;
+            }
+            set {
+                ViewState["EditText"] = value;
+                OnColumnChanged();
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Indicates the text to display for the <see langword='Update'/> command button
+        ///    in the column.</para>
+        /// </devdoc>
+        [
+        Localizable(true),
+        DefaultValue("")
+        ]
+        public virtual string UpdateText {
+            get {
+                object o = ViewState["UpdateText"];
+                if (o != null)
+                    return(string)o;
+                return String.Empty;
+            }
+            set {
+                ViewState["UpdateText"] = value;
+                OnColumnChanged();
+            }
+        }
+
+
+        [
+        DefaultValue(""),
+        ]
+        public virtual string ValidationGroup {
+            get {
+                object o = ViewState["ValidationGroup"];
+                if (o != null) {
+                    return (string)o;
+                }
+                return String.Empty;
+            }
+            set {
+                ViewState["ValidationGroup"] = value;
+                OnColumnChanged();
+            }
+        }
+
+        private void AddButtonToCell(TableCell cell,  string commandName, string buttonText, bool causesValidation, string validationGroup) {
+            WebControl buttonControl = null;
+            ControlCollection controls = cell.Controls;
+            ButtonColumnType buttonType = ButtonType;
+
+            if (buttonType == ButtonColumnType.LinkButton) {
+                LinkButton button = new DataGridLinkButton();
+
+                buttonControl = button;
+                button.CommandName = commandName;
+                button.Text = buttonText;
+                button.CausesValidation = causesValidation;
+                button.ValidationGroup = validationGroup;
+            }
+            else {
+                Button button = new Button();
+
+                buttonControl = button;
+                button.CommandName = commandName;
+                button.Text = buttonText;
+                button.CausesValidation = causesValidation;
+                button.ValidationGroup = validationGroup;
+            }
+
+            controls.Add(buttonControl);
+        }
+
+
+        /// <devdoc>
+        ///    <para>Initializes a cell within the column.</para>
+        /// </devdoc>
+        public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType) {
+            base.InitializeCell(cell, columnIndex, itemType);
+            bool causesValidation = CausesValidation;
+
+            if ((itemType != ListItemType.Header) &&
+                (itemType != ListItemType.Footer)) {
+                if (itemType == ListItemType.EditItem) {
+                    ControlCollection controls = cell.Controls;
+                    AddButtonToCell(cell, DataGrid.UpdateCommandName, UpdateText, causesValidation, ValidationGroup);
+
+                    LiteralControl spaceControl = new LiteralControl("&nbsp;");
+                    controls.Add(spaceControl);
+
+                    AddButtonToCell(cell, DataGrid.CancelCommandName, CancelText, false, String.Empty);
+                }
+                else {
+                    AddButtonToCell(cell, DataGrid.EditCommandName, EditText, false, String.Empty);
+                }
+            }
+        }
+    }
+}
+