KeyProperty.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 / DataEntity / System / Data / EntityModel / SchemaObjectModel / KeyProperty.cs / 1305376 / KeyProperty.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System; 
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Data.Metadata.Edm; 

 
namespace System.Data.EntityModel.SchemaObjectModel 
{
    ///  
    /// Represents PropertyRef Element for Entity keys and referential constraints
    /// 
    internal sealed class PropertyRefElement : SchemaElement
    { 
        #region Instance Fields
        private StructuredProperty _property = null; 
        #endregion 

        #region Public Methods 
        /// 
        /// construct a KeyProperty object
        /// 
        ///  
        public PropertyRefElement(SchemaElement parentElement)
            : base(parentElement) 
        { 
        }
        #endregion 

        #region Public Properties
        /// 
        /// property chain from KeyedType to Leaf property 
        /// 
        public StructuredProperty Property 
        { 
            get
            { 
                return _property;
            }
        }
        #endregion 

        #region Private Methods 
 
        internal override void ResolveTopLevelNames()
        { 
            Debug.Assert(false, "This method should never be used. Use other overload instead");
        }

        ///  
        /// Since this method can be used in different context, this method does not add any errors
        /// Please make sure that the caller of this methods handles the error case and add errors 
        /// appropriately 
        /// 
        ///  
        /// 
        internal bool ResolveNames(SchemaEntityType entityType)
        {
            if (string.IsNullOrEmpty(this.Name)) 
            {
                // Don't flag this error. This must already must have flaged as error, while handling name attribute 
                return true; 
            }
 
            // Make sure there is a property by this name
            _property = entityType.FindProperty(this.Name);

            return (_property != null); 
        }
 
        #endregion 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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