SimplePropertyEntry.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / SimplePropertyEntry.cs / 1 / SimplePropertyEntry.cs
                        

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

namespace System.Web.UI { 
 
    using System.CodeDom;
    using System.Web.Compilation; 
    using Debug=System.Web.Util.Debug;
    using System.Security.Permissions;

 
    /// 
    /// PropertyEntry for simple attributes 
    ///  
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public class SimplePropertyEntry : PropertyEntry {
        private string _persistedValue;
        private bool _useSetAttribute;
        private object _value; 

        internal SimplePropertyEntry() { 
        } 

 
        /// 
        /// 
        //
        public string PersistedValue { 
            get {
                return _persistedValue; 
            } 
            set {
                _persistedValue = value; 
            }
        }

 
        /// 
        ///  
        public bool UseSetAttribute { 
            get {
                return _useSetAttribute; 
            }
            set {
                _useSetAttribute = value;
            } 
        }
 
 
        /// 
        ///  
        public object Value {
            get {
                return _value;
            } 
            set {
                _value = value; 
            } 
        }
 
        // Build the statement that assigns this property
        internal CodeStatement GetCodeStatement(BaseTemplateCodeDomTreeGenerator generator,
            CodeExpression ctrlRefExpr) {
 
            // If we don't have a type, use IAttributeAccessor.SetAttribute
            if (UseSetAttribute) { 
                // e.g. ((IAttributeAccessor)__ctrl).SetAttribute("{{_name}}", "{{_value}}"); 
                CodeMethodInvokeExpression methCallExpression = new CodeMethodInvokeExpression(
                    new CodeCastExpression(typeof(IAttributeAccessor), ctrlRefExpr), 
                        "SetAttribute");

                methCallExpression.Parameters.Add(new CodePrimitiveExpression(Name));
                methCallExpression.Parameters.Add(new CodePrimitiveExpression(Value)); 
                return new CodeExpressionStatement(methCallExpression);
            } 
 
            CodeExpression leftExpr, rightExpr = null;
 
            if (PropertyInfo != null) {
                leftExpr = CodeDomUtility.BuildPropertyReferenceExpression(ctrlRefExpr, Name);
            }
            else { 
                // In case of a field, there should only be one (unlike properties)
                Debug.Assert(Name.IndexOf('.') < 0, "_name.IndexOf('.') < 0"); 
                leftExpr = new CodeFieldReferenceExpression(ctrlRefExpr, Name); 
            }
 
            if (Type == typeof(string)) {
                rightExpr = generator.BuildStringPropertyExpression(this);
            }
            else { 
                rightExpr = CodeDomUtility.GenerateExpressionForValue(PropertyInfo, Value, Type);
            } 
 
            // Now that we have both side, add the assignment
            return new CodeAssignStatement(leftExpr, rightExpr); 
        }
    }

}

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