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//------------------------------------------------------------------------------
// <copyright file="TableCellCollection.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.Drawing.Design;
using System.Web;
using System.Web.UI;
/// <devdoc>
/// <para>Encapsulates the collection of <see cref='System.Web.UI.WebControls.TableHeaderCell'/> and <see cref='System.Web.UI.WebControls.TableCell'/> objects within a
/// <see cref='System.Web.UI.WebControls.Table'/>
/// control.</para>
/// </devdoc>
[
Editor("System.Web.UI.Design.WebControls.TableCellsCollectionEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor))
]
public sealed class TableCellCollection : IList {
/// <devdoc>
/// <para>
/// A protected field of type <see cref='System.Web.UI.WebControls.TableRow'/>. Represents the
/// <see cref='System.Web.UI.WebControls.TableCell'/>
/// collection internally.
/// </para>
/// </devdoc>
private TableRow owner;
/// <devdoc>
/// </devdoc>
internal TableCellCollection(TableRow owner) {
this.owner = owner;
}
/// <devdoc>
/// <para>Gets the <see cref='System.Web.UI.WebControls.TableCell'/>
/// count in the collection.</para>
/// </devdoc>
public int Count {
get {
if (owner.HasControls()) {
return owner.Controls.Count;
}
return 0;
}
}
/// <devdoc>
/// <para>
/// Gets a <see cref='System.Web.UI.WebControls.TableCell'/>
/// referenced by the specified
/// ordinal index value.
/// </para>
/// </devdoc>
public TableCell this[int index] {
get {
return(TableCell)owner.Controls[index];
}
}
/// <devdoc>
/// <para>
/// Adds the specified <see cref='System.Web.UI.WebControls.TableCell'/> to the end of the collection.
/// </para>
/// </devdoc>
public int Add(TableCell cell) {
AddAt(-1, cell);
return owner.Controls.Count - 1;
}
/// <devdoc>
/// <para>
/// Adds the specified <see cref='System.Web.UI.WebControls.TableCell'/> to the collection at the specified
/// index location.
/// </para>
/// </devdoc>
public void AddAt(int index, TableCell cell) {
owner.Controls.AddAt(index, cell);
}
/// <devdoc>
/// </devdoc>
public void AddRange(TableCell[] cells) {
if (cells == null) {
throw new ArgumentNullException("cells");
}
foreach(TableCell cell in cells) {
Add(cell);
}
}
/// <devdoc>
/// <para>Removes all <see cref='System.Web.UI.WebControls.TableCell'/> controls
/// from the collection.</para>
/// </devdoc>
public void Clear() {
if (owner.HasControls()) {
owner.Controls.Clear();
}
}
/// <devdoc>
/// <para>Returns an ordinal index value that represents the position of the
/// specified <see cref='System.Web.UI.WebControls.TableCell'/> within the collection.</para>
/// </devdoc>
public int GetCellIndex(TableCell cell) {
if (owner.HasControls()) {
return owner.Controls.IndexOf(cell);
}
return -1;
}
/// <devdoc>
/// <para>
/// Returns an enumerator of all <see cref='System.Web.UI.WebControls.TableCell'/> controls within the
/// collection.
/// </para>
/// </devdoc>
public IEnumerator GetEnumerator() {
return owner.Controls.GetEnumerator();
}
/// <devdoc>
/// <para>Copies contents from the collection to the specified <see cref='System.Array' qualify='true'/> with the
/// specified starting index.</para>
/// </devdoc>
public void CopyTo(Array array, int index) {
for (IEnumerator e = this.GetEnumerator(); e.MoveNext();)
array.SetValue(e.Current, index++);
}
/// <devdoc>
/// <para>
/// Gets the object that can be used to synchronize access to the
/// collection. In this case, it is the collection itself.
/// </para>
/// </devdoc>
public Object SyncRoot {
get { return this;}
}
/// <devdoc>
/// <para>
/// Gets a value indicating whether the collection is read-only.
/// </para>
/// </devdoc>
public bool IsReadOnly {
get { return false;}
}
/// <devdoc>
/// <para>
/// Gets a value indicating whether access to the collection is synchronized
/// (thread-safe).
/// </para>
/// </devdoc>
public bool IsSynchronized {
get { return false;}
}
/// <devdoc>
/// <para>
/// Removes the specified <see cref='System.Web.UI.WebControls.TableCell'/> from the
/// collection.
/// </para>
/// </devdoc>
public void Remove(TableCell cell) {
owner.Controls.Remove(cell);
}
/// <devdoc>
/// <para>
/// Removes the <see cref='System.Web.UI.WebControls.TableCell'/> from the collection at the
/// specified index location.
/// </para>
/// </devdoc>
public void RemoveAt(int index) {
owner.Controls.RemoveAt(index);
}
// IList implementation, required by collection editor
/// <internalonly/>
object IList.this[int index] {
get {
return owner.Controls[index];
}
set {
RemoveAt(index);
AddAt(index, (TableCell)value);
}
}
/// <internalonly/>
bool IList.IsFixedSize {
get {
return false;
}
}
/// <internalonly/>
int IList.Add(object o) {
return Add((TableCell) o);
}
/// <internalonly/>
bool IList.Contains(object o) {
return owner.Controls.Contains((TableCell)o);
}
/// <internalonly/>
int IList.IndexOf(object o) {
return owner.Controls.IndexOf((TableCell)o);
}
/// <internalonly/>
void IList.Insert(int index, object o) {
owner.Controls.AddAt(index, (TableCell)o);
}
/// <internalonly/>
void IList.Remove(object o) {
owner.Controls.Remove((TableCell)o);
}
}
}
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