141 lines
4.0 KiB
C#
141 lines
4.0 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="View.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.ComponentModel;
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using System.Web;
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using System.Web.UI;
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[ParseChildren(false)]
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[
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Designer("System.Web.UI.Design.WebControls.ViewDesigner, " + AssemblyRef.SystemDesign)
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]
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[ToolboxData("<{0}:View runat=\"server\"></{0}:View>")]
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public class View : Control {
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private static readonly object _eventActivate = new object();
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private static readonly object _eventDeactivate = new object();
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private bool _active = false;
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/// <devdoc>
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/// <para>[To be supplied.]</para>
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/// </devdoc>
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internal bool Active {
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get {
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return _active;
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}
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set {
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_active = value;
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// VSWhidbey 297515 - Need to make it visible explicity so views can be added during Render
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base.Visible = true;
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}
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}
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/// <devdoc>
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/// <para>Gets and sets a value indicating whether theme is enabled.</para>
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/// </devdoc>
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[
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Browsable(true)
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]
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public override bool EnableTheming {
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get {
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return base.EnableTheming;
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}
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set {
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base.EnableTheming = value;
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}
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}
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/// <devdoc>
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/// <para>Occurs when the view is deactivated.</para>
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/// </devdoc>
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[
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WebCategory("Action"),
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WebSysDescription(SR.View_Activate)
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]
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public event EventHandler Activate {
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add {
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Events.AddHandler(_eventActivate, value);
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}
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remove {
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Events.RemoveHandler(_eventActivate, value);
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}
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}
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/// <devdoc>
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/// <para>Occurs when the view is deactivated.</para>
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/// </devdoc>
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[
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WebCategory("Action"),
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WebSysDescription(SR.View_Deactivate)
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]
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public event EventHandler Deactivate {
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add {
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Events.AddHandler(_eventDeactivate, value);
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}
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remove {
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Events.RemoveHandler(_eventDeactivate, value);
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}
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}
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/// <devdoc>
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/// <para>
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/// Gets or sets a value that indicates whether the view should be rendered on
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/// the page.
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/// </para>
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/// </devdoc>
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[
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Browsable(false),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
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WebCategory("Behavior"),
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WebSysDescription(SR.Control_Visible)
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]
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public override bool Visible {
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get {
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if (Parent == null) {
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return Active;
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}
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return Active && Parent.Visible;
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}
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set {
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if (DesignMode) {
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return;
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}
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throw new InvalidOperationException(SR.GetString(SR.View_CannotSetVisible));
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}
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}
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/// <devdoc>
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/// <para>Raises the <see langword='OnActivate '/>event.</para>
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/// </devdoc>
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protected internal virtual void OnActivate(EventArgs e) {
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EventHandler handler = (EventHandler)Events[_eventActivate];
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if (handler != null) {
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handler(this, e);
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}
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}
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/// <devdoc>
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/// <para>Raises the <see langword='OnDeactivate '/>event.</para>
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/// </devdoc>
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protected internal virtual void OnDeactivate(EventArgs e) {
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EventHandler handler = (EventHandler)Events[_eventDeactivate];
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if (handler != null) {
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handler(this, e);
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}
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}
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}
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}
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