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//------------------------------------------------------------------------------
// <copyright file="DataPagerFieldCollection.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Web;
using System.Web.Resources;
using System.Web.Security;
using System.Web.UI;
namespace System.Web.UI.WebControls {
/// <summary>
/// Summary description for DataPagerFieldCollection
/// </summary>
public class DataPagerFieldCollection : StateManagedCollection {
private DataPager _dataPager;
private static readonly Type[] knownTypes = new Type[] {
typeof(NextPreviousPagerField),
typeof(NumericPagerField),
typeof(TemplatePagerField)
};
public event EventHandler FieldsChanged;
public DataPagerFieldCollection(DataPager dataPager) {
_dataPager = dataPager;
}
/// <devdoc>
/// <para>Gets a <see cref='System.Web.UI.WebControls.DataPagerField'/> at the specified index in the
/// collection.</para>
/// </devdoc>
[
Browsable(false)
]
public DataPagerField this[int index] {
get {
return ((IList)this)[index] as DataPagerField;
}
}
/// <devdoc>
/// <para>Appends a <see cref='System.Web.UI.WebControls.DataPagerField'/> to the collection.</para>
/// </devdoc>
public void Add(DataPagerField field) {
((IList)this).Add(field);
}
/// <devdoc>
/// <para>Provides a deep copy of the collection. Used mainly by design time dialogs to implement "cancel" rollback behavior.</para>
/// </devdoc>
public DataPagerFieldCollection CloneFields(DataPager pager) {
DataPagerFieldCollection fields = new DataPagerFieldCollection(pager);
foreach (DataPagerField field in this) {
fields.Add(field.CloneField());
}
return fields;
}
/// <devdoc>
/// <para>Returns whether a DataPagerField is a member of the collection.</para>
/// </devdoc>
public bool Contains(DataPagerField field) {
return ((IList)this).Contains(field);
}
/// <devdoc>
/// <para>Copies the contents of the entire collection into an <see cref='System.Array' qualify='true'/> appending at
/// the specified index of the <see cref='System.Array' qualify='true'/>.</para>
/// </devdoc>
public void CopyTo(DataPagerField[] array, int index) {
((IList)this).CopyTo(array, index);
return;
}
/// <devdoc>
/// <para>Creates a known type of DataPagerField.</para>
/// </devdoc>
protected override object CreateKnownType(int index) {
switch (index) {
case 0:
return new NextPreviousPagerField();
case 1:
return new NumericPagerField();
case 2:
return new TemplatePagerField();
default:
throw new ArgumentOutOfRangeException(AtlasWeb.PagerFieldCollection_InvalidTypeIndex);
}
}
/// <devdoc>
/// <para>Returns an ArrayList of known DataPagerField types.</para>
/// </devdoc>
protected override Type[] GetKnownTypes() {
return knownTypes;
}
/// <devdoc>
/// <para>Returns the index of the first occurrence of a value in a <see cref='System.Web.UI.WebControls.DataPagerField'/>.</para>
/// </devdoc>
public int IndexOf(DataPagerField field) {
return ((IList)this).IndexOf(field);
}
/// <devdoc>
/// <para>Inserts a <see cref='System.Web.UI.WebControls.DataPagerField'/> to the collection
/// at the specified index.</para>
/// </devdoc>
public void Insert(int index, DataPagerField field) {
((IList)this).Insert(index, field);
}
/// <devdoc>
/// Called when the Clear() method is complete.
/// </devdoc>
protected override void OnClearComplete() {
OnFieldsChanged();
}
/// <devdoc>
/// </devdoc>
void OnFieldChanged(object sender, EventArgs e) {
OnFieldsChanged();
}
/// <devdoc>
/// </devdoc>
void OnFieldsChanged() {
if (FieldsChanged != null) {
FieldsChanged(this, EventArgs.Empty);
}
}
/// <devdoc>
/// Called when the Insert() method is complete.
/// </devdoc>
protected override void OnInsertComplete(int index, object value) {
DataPagerField field = value as DataPagerField;
if (field != null) {
field.FieldChanged += new EventHandler(OnFieldChanged);
}
field.SetDataPager(_dataPager);
OnFieldsChanged();
}
/// <devdoc>
/// Called when the Remove() method is complete.
/// </devdoc>
protected override void OnRemoveComplete(int index, object value) {
DataPagerField field = value as DataPagerField;
if (field != null) {
field.FieldChanged -= new EventHandler(OnFieldChanged);
}
OnFieldsChanged();
}
/// <devdoc>
/// <para>Validates that an object is a HotSpot.</para>
/// </devdoc>
protected override void OnValidate(object o) {
base.OnValidate(o);
if (!(o is DataPagerField))
throw new ArgumentException(AtlasWeb.PagerFieldCollection_InvalidType);
}
/// <devdoc>
/// <para>Removes a <see cref='System.Web.UI.WebControls.DataPagerField'/> from the collection at the specified
/// index.</para>
/// </devdoc>
public void RemoveAt(int index) {
((IList)this).RemoveAt(index);
}
/// <devdoc>
/// <para>Removes the specified <see cref='System.Web.UI.WebControls.DataPagerField'/> from the collection.</para>
/// </devdoc>
public void Remove(DataPagerField field) {
((IList)this).Remove(field);
}
/// <devdoc>
/// <para>Marks a DataPagerField as dirty so that it will record its entire state into view state.</para>
/// </devdoc>
protected override void SetDirtyObject(object o) {
((DataPagerField)o).SetDirty();
}
}
}
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