Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / DataFieldEditor.cs / 1 / DataFieldEditor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Web.UI.Design.WebControls { using System; using System.Collections; using Microsoft.Win32; using System.ComponentModel; using System.ComponentModel.Design; using System.Diagnostics; using System.Drawing; using System.Windows.Forms; ////// /// The DataFieldEditor is a collection editor that is specifically /// designed to edit arrays containing strings. /// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] internal class DataFieldEditor : DataFieldCollectionEditor { public DataFieldEditor(Type type) : base(type) { } ////// /// Retrieves the data type this collection contains. The default /// implementation looks inside of the collection for the Item property /// and returns the returning datatype of the item. Do not call this /// method directly. Instead, use the CollectionItemType property. Use this /// method to override the default implementation. /// protected override Type CreateCollectionItemType() { return CollectionType.GetElementType(); } ////// /// We implement the getting and setting of items on this collection. /// protected override object[] GetItems(object editValue) { if (editValue is Array) { Array valueArray = (Array)editValue; object[] items = new object[valueArray.GetLength(0)]; Array.Copy(valueArray, items, items.Length); return items; } else { return new object[0]; } } ////// /// We implement the getting and setting of items on this collection. /// It should return an instance to replace editValue with, or editValue /// if there is no need to replace the instance. /// protected override object SetItems(object editValue, object[] value) { if (editValue is Array || editValue == null) { Array newArray = Array.CreateInstance(CollectionItemType, value.Length); Array.Copy(value, newArray, value.Length); return newArray; } return editValue; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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