DataSourceExpressionCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
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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