DataBinding.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / DataBinding.cs / 1 / DataBinding.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 */ 

namespace System.Web.UI { 

    using System;
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.Data;
    using System.Globalization; 
    using System.Security.Permissions; 
    using System.Web.Util;
 

    /// 
    ///    Enables RAD designers to create data binding expressions
    ///       at design time. This class cannot be inherited. 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class DataBinding { 

        private string propertyName; 
        private Type propertyType;
        private string expression;

 
        /// 
        /// Initializes a new instance of the  class. 
        ///  
        public DataBinding(string propertyName, Type propertyType, string expression) {
            this.propertyName = propertyName; 
            this.propertyType = propertyType;
            this.expression = expression;
        }
 

 
        ///  
        ///    Indicates the data binding expression to be evaluated.
        ///  
        public string Expression {
            get {
                return expression;
            } 
            set {
                Debug.Assert((value != null) && (value.Length != 0), 
                             "Invalid expression"); 
                expression = value;
            } 
        }


        ///  
        ///    Indicates the name of the property that is to be data bound against. This
        ///       property is read-only. 
        ///  
        public string PropertyName {
            get { 
                return propertyName;
            }
        }
 

        ///  
        ///    Indicates the type of the data bound property. This property is 
        ///       read-only.
        ///  
        public Type PropertyType {
            get {
                return propertyType;
            } 
        }
 
 
        /// 
        ///     DataBinding objects are placed in a hashtable representing the collection 
        ///     of bindings on a control. There can only be one binding/property, so
        ///     the hashcode computation should match the Equals implementation and only
        ///    take the property name into account.
        ///  
        public override int GetHashCode() {
            return propertyName.ToLower(CultureInfo.InvariantCulture).GetHashCode(); 
        } 

 
        /// 
        /// 
        public override bool Equals(object obj) {
            if ((obj != null) && (obj is DataBinding)) { 
                DataBinding binding = (DataBinding)obj;
 
                return StringUtil.EqualsIgnoreCase(propertyName, binding.PropertyName); 
            }
            return false; 
        }
    }
}

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