60 lines
2.4 KiB
C#
60 lines
2.4 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="EntityDataSourceEntitySetNameConverter.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//
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// @owner [....]
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// @backupOwner [....]
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//------------------------------------------------------------------------------
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Diagnostics;
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using System.Web.UI.WebControls;
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namespace System.Web.UI.Design.WebControls
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{
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internal class EntityDataSourceEntitySetNameConverter : StringConverter
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{
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public EntityDataSourceEntitySetNameConverter()
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: base()
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{
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}
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public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
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{
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// We can only get a list of possible EntitySetName values if we have:
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// (1) Connection string so we can load metadata
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// (2) DefaultContainerName to give scope to the lookup
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// Even if these values are set, it may not be possible to actually find them in metadata, but at least we can try the lookup if requested
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EntityDataSource entityDataSource = context.Instance as EntityDataSource;
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if (entityDataSource != null &&
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!String.IsNullOrEmpty(entityDataSource.ConnectionString) &&
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!String.IsNullOrEmpty(entityDataSource.DefaultContainerName))
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{
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List<EntityDataSourceEntitySetNameItem> entitySetNameItems = new EntityDataSourceDesignerHelper(entityDataSource, false /*interactiveMode*/).GetEntitySets(entityDataSource.DefaultContainerName);
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string[] entitySetNames = new string[entitySetNameItems.Count];
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for (int i = 0; i < entitySetNameItems.Count; i++)
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{
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entitySetNames[i] = entitySetNameItems[i].EntitySetName;
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}
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return new StandardValuesCollection(entitySetNames);
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}
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return null;
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}
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public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
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{
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return false;
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}
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public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
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{
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return true;
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}
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}
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}
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