71 lines
2.2 KiB
C#
71 lines
2.2 KiB
C#
//
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// System.Web.UI.WebControls.CompositeDataBoundControl.cs
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//
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// Authors:
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// (C) 2005-2010 Novell, Inc (http://www.novell.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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namespace System.Web.UI.WebControls
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{
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public abstract class CompositeDataBoundControl : DataBoundControl, INamingContainer
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{
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protected CompositeDataBoundControl ()
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{
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}
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public override ControlCollection Controls {
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get {
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EnsureChildControls();
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return base.Controls;
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}
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}
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protected internal override void CreateChildControls ()
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{
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Controls.Clear ();
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object itemCount = ViewState ["_!ItemCount"];
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if (itemCount != null) {
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object [] data = new object [(int) itemCount];
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CreateChildControls (data, false);
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} else if (RequiresDataBinding)
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EnsureDataBound ();
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}
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protected internal override void PerformDataBinding (IEnumerable data)
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{
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base.PerformDataBinding (data);
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Controls.Clear ();
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ViewState ["_!ItemCount"] = CreateChildControls (data, true);
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}
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protected abstract int CreateChildControls (IEnumerable dataSource, bool dataBinding);
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}
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}
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