Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / DataControlFieldCollection.cs / 1305376 / DataControlFieldCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.ComponentModel; ////// public sealed class DataControlFieldCollection : StateManagedCollection { private static readonly Type[] knownTypes = new Type[] { typeof(BoundField), typeof(ButtonField), typeof(CheckBoxField), typeof(CommandField), typeof(HyperLinkField), typeof(ImageField), typeof(TemplateField) }; public event EventHandler FieldsChanged; ///Represents the collection of fields to be displayed in /// a data bound control that uses fields. ////// [ Browsable(false) ] public DataControlField this[int index] { get { return ((IList)this)[index] as DataControlField; } } ///Gets a ///at the specified index in the /// collection. /// public void Add(DataControlField field) { ((IList)this).Add(field); } ///Appends a ///to the collection. /// public DataControlFieldCollection CloneFields() { DataControlFieldCollection fields = new DataControlFieldCollection(); foreach (DataControlField field in this) { fields.Add(field.CloneField()); } return fields; } ///Provides a deep copy of the collection. Used mainly by design time dialogs to implement "cancel" rollback behavior. ////// public bool Contains(DataControlField field) { return ((IList)this).Contains(field); } ///Returns whether a DataControlField is a member of the collection. ////// public void CopyTo(DataControlField[] array, int index) { ((IList)this).CopyTo(array, index); return; } ///Copies the contents of the entire collection into an ///appending at /// the specified index of the . /// protected override object CreateKnownType(int index) { switch (index) { case 0: return new BoundField(); case 1: return new ButtonField(); case 2: return new CheckBoxField(); case 3: return new CommandField(); case 4: return new HyperLinkField(); case 5: return new ImageField(); case 6: return new TemplateField(); default: throw new ArgumentOutOfRangeException(SR.GetString(SR.DataControlFieldCollection_InvalidTypeIndex)); } } ///Creates a known type of DataControlField. ////// protected override Type[] GetKnownTypes() { return knownTypes; } ///Returns an ArrayList of known DataControlField types. ////// public int IndexOf(DataControlField field) { return ((IList)this).IndexOf(field); } ///Returns the index of the first occurrence of a value in a ///. /// public void Insert(int index, DataControlField field) { ((IList)this).Insert(index, field); } ///Inserts a ///to the collection /// at the specified index. /// Called when the Clear() method is complete. /// protected override void OnClearComplete() { OnFieldsChanged(); } ////// void OnFieldChanged(object sender, EventArgs e) { OnFieldsChanged(); } ////// void OnFieldsChanged() { if (FieldsChanged != null) { FieldsChanged(this, EventArgs.Empty); } } ////// Called when the Insert() method is complete. /// protected override void OnInsertComplete(int index, object value) { DataControlField field = value as DataControlField; if (field != null) { field.FieldChanged += new EventHandler(OnFieldChanged); } OnFieldsChanged(); } ////// Called when the Remove() method is complete. /// protected override void OnRemoveComplete(int index, object value) { DataControlField field = value as DataControlField; if (field != null) { field.FieldChanged -= new EventHandler(OnFieldChanged); } OnFieldsChanged(); } ////// protected override void OnValidate(object o) { base.OnValidate(o); if (!(o is DataControlField)) throw new ArgumentException(SR.GetString(SR.DataControlFieldCollection_InvalidType)); } ///Validates that an object is a HotSpot. ////// public void RemoveAt(int index) { ((IList)this).RemoveAt(index); } ///Removes a ///from the collection at the specified /// index. /// public void Remove(DataControlField field) { ((IList)this).Remove(field); } ///Removes the specified ///from the collection. /// protected override void SetDirtyObject(object o) { ((DataControlField)o).SetDirty(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Marks a DataControlField as dirty so that it will record its entire state into view state. ///
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