Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / UI / WebControls / Expressions / DataSourceExpressionCollection.cs / 1305376 / DataSourceExpressionCollection.cs
#if ORYX_VNEXT namespace Microsoft.Web.Data.UI.WebControls.Expressions { using System; #else namespace System.Web.UI.WebControls.Expressions { #endif using System.Collections; using System.Collections.ObjectModel; using System.Diagnostics.CodeAnalysis; using System.Web; using System.Web.UI; public class DataSourceExpressionCollection : StateManagedCollection { private IQueryableDataSource _dataSource; private static readonly Type[] knownTypes = new Type[] { typeof(SearchExpression), typeof(MethodExpression), typeof(OrderByExpression), typeof(RangeExpression), typeof(PropertyExpression), typeof(CustomExpression), }; public HttpContext Context { get; private set; } public Control Owner { get; private set; } public DataSourceExpression this[int index] { get { return (DataSourceExpression)((IList)this)[index]; } set { ((IList)this)[index] = value; } } // Allows for nested expression blocks to be initilaized after the fact internal void SetContext(Control owner, HttpContext context, IQueryableDataSource dataSource) { Owner = owner; Context = context; _dataSource = dataSource; foreach (DataSourceExpression expression in this) { expression.SetContext(owner, context, _dataSource); } } public void Add(DataSourceExpression expression) { ((IList)this).Add(expression); } protected override object CreateKnownType(int index) { switch (index) { case 0: return new SearchExpression(); case 1: return new MethodExpression(); case 2: return new OrderByExpression(); case 3: return new RangeExpression(); case 4: return new PropertyExpression(); case 5: return new CustomExpression(); default: throw new ArgumentOutOfRangeException("index"); } } public void CopyTo(DataSourceExpression[] expressionArray, int index) { base.CopyTo(expressionArray, index); } public void Contains(DataSourceExpression expression) { ((IList)this).Contains(expression); } protected override Type[] GetKnownTypes() { return knownTypes; } public int IndexOf(DataSourceExpression expression) { return ((IList)this).IndexOf(expression); } public void Insert(int index, DataSourceExpression expression) { ((IList)this).Insert(index, expression); } public void Remove(DataSourceExpression expression) { ((IList)this).Remove(expression); } public void RemoveAt(int index) { ((IList)this).RemoveAt(index); } protected override void SetDirtyObject(object o) { ((DataSourceExpression)o).SetDirty(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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