EntityDataSourceContainerNameConverter.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 / DataWebControlsDesign / System / Data / WebControls / Design / EntityDataSourceContainerNameConverter.cs / 1305376 / EntityDataSourceContainerNameConverter.cs
                        

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

using System.Collections.Generic; 
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Diagnostics;
using System.Web.UI.WebControls; 

namespace System.Web.UI.Design.WebControls 
{ 
    internal class EntityDataSourceContainerNameConverter : StringConverter
    { 

        public EntityDataSourceContainerNameConverter()
            : base()
        { 
        }
 
        public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) 
        {
            // We can only get a list of possible DefaultContainerName values if we have: 
            //    (1) Connection string so we can load metadata
            // Even if this value is set, it may not be possible to actually load the metadata, but at least we can try the lookup if requested

            EntityDataSource entityDataSource = context.Instance as EntityDataSource; 
            if (entityDataSource != null && !String.IsNullOrEmpty(entityDataSource.ConnectionString))
            { 
                List containerNameItems = new EntityDataSourceDesignerHelper(entityDataSource, false /*interactiveMode*/).GetContainerNames(true /*sortResults*/); 
                string[] containers = new string[containerNameItems.Count];
                for (int i = 0; i < containerNameItems.Count; i++) 
                {
                    containers[i] = containerNameItems[i].ToString();
                }
                return new StandardValuesCollection(containers); 
            }
 
            return null; 
        }
 
        public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
        {
            return false;
        } 

        public override bool GetStandardValuesSupported(ITypeDescriptorContext context) 
        { 
            return true;
        } 
    }
}

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

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