74 lines
2.4 KiB
C#
74 lines
2.4 KiB
C#
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//------------------------------------------------------------------------------
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/// <copyright from='1997' to='2002' company='Microsoft Corporation'>
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/// Copyright (c) Microsoft Corporation. All Rights Reserved.
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///
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/// This source code is intended only as a supplement to Microsoft
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/// Development Tools and/or on-line documentation. See these other
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/// materials for detailed information regarding Microsoft code samples.
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///
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/// </copyright>
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//------------------------------------------------------------------------------
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namespace SampleDesignerHost
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{
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.ComponentModel.Design.Serialization;
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using System.Diagnostics;
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using System.Collections;
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using System.Windows.Forms;
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using System.Reflection;
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using System.Text;
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/// This collection keeps a list of components parallel with the host's list of
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/// sites for those components.
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internal class DesignerComponentCollection : ComponentCollection
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{
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private SampleDesignerHost host;
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internal DesignerComponentCollection(SampleDesignerHost host) : base(new IComponent[0]) {
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this.host = host;
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// Initially fill the list with site data. After the initial fill it is up to
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// those who modify the Sites hash to update us.
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//
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if (host.Sites != null) {
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foreach(ISite site in host.Sites.Values) {
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InnerList.Add(site.Component);
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}
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}
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}
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/// Access components from sites by name.
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public override IComponent this[string name] {
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get {
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Debug.Assert(name != null, "name is null");
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if (name == null) {
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return null;
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}
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if (name.Length == 0) {
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Debug.Assert(host.RootComponent != null, "base component is null");
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return host.RootComponent;
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}
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ISite site = (ISite)host.Sites[name];
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return (site == null) ? null : site.Component;
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}
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}
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internal void Add(ISite site) {
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InnerList.Add(site.Component);
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}
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internal void Clear() {
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InnerList.Clear();
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}
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internal void Remove(ISite site) {
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InnerList.Remove(site.Component);
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}
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}
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}
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