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Код:Entity Framework: Указанный метод не поддерживается
List<MemberClass> Members = myEntity.users
.Where(xXx => xXx.Status == m_Status && xXx.CompanyRef != m_CompanyRef
&& xXx.userconfigs.FirstOrDefault().IsPublicProfile == true)
.Select(xXx => new MemberClass {
Username = xXx.Username,
FullName = xXx.Name + " " + xXx.Surname,
Name = xXx.Name,
Surname = xXx.Surname,
AccessName = xXx.useraccess.Name,
RID = xXx.RID,
Email = xXx.Email }).ToList();
Исключение:
System.Data.EntityCommandCompilationException was unhandled by user code HResult=-2146232005 Message=An error occurred while preparing the command definition. See the inner exception for details.
Source=System.Data.Entity StackTrace:
at System.Data.EntityClient.EntityCommandDefinition..ctor(DbProviderFactory storeProviderFactory, DbCommandTree commandTree)
at System.Data.EntityClient.EntityProviderServices.CreateCommandDefinition(DbProviderFactory storeProviderFactory, DbCommandTree commandTree)
at System.Data.EntityClient.EntityProviderServices.CreateDbCommandDefinition(DbProviderManifest providerManifest, DbCommandTree commandTree)
at System.Data.Common.DbProviderServices.CreateCommandDefinition(DbCommandTree commandTree)
at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Prepare(ObjectContext context, DbQueryCommandTree tree, Type elementType, MergeOption mergeOption, Span span, ReadOnlyCollection1 compiledQueryParameters, AliasGenerator aliasGenerator)
at System.Data.Objects.ELinq.ELinqQueryState.GetExecutionPlan(Nullable1 forMergeOption)
at System.Data.Objects.ObjectQuery1.GetResults(Nullable1 forMergeOption)
at System.Data.Objects.ObjectQuery1.System.Collections.Generic.IEnumerable<T>.GetEnumerator()
at System.Collections.Generic.List1..ctor(IEnumerable1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable1 source)
at MemberHelper.MemberHelperDB.getExternalMemberList(Decimal m_CompanyRef, Decimal m_Status) in c:\Users\Dreamcatcher\Documents\Visual Studio 2010\SVN Projects\OZTranV4\OZTranV4\App_Code\Helper\MemberHelperDB.cs:line 54
at popup_AddMemberToWork2.gridExternalUser_NeedDataSource(Object sender, GridNeedDataSourceEventArgs e) in c:\Users\Dreamcatcher\Documents\Visual Studio 2010\SVN Projects\OZTranV4\OZTranV4\popup\AddMemberToWork2.aspx.cs:line 157
at Telerik.Web.UI.RadGrid.OnNeedDataSource(GridNeedDataSourceEventArgs e)
at Telerik.Web.UI.RadGrid.ObtainDataSource(GridRebindReason rebindReason, Boolean IsBoundUsingDataSourceId)
at Telerik.Web.UI.RadGrid.AutoDataBind(GridRebindReason rebindReason)
at Telerik.Web.UI.RadGrid.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException: System.NotSupportedException HResult=-2146233067 Message=Specified method is not supported. Source=MySql.Data.Entity StackTrace:
at MySql.Data.Entity.SqlGenerator.Visit(DbApplyExpression expression)
at System.Data.Common.CommandTrees.DbApplyExpression.Accept[TResultType](DbExpressionVisitor1 visitor)
at MySql.Data.Entity.SqlGenerator.VisitInputExpression(DbExpression e, String name, TypeUsage type)
at MySql.Data.Entity.SelectGenerator.HandleJoinExpression(DbExpressionBinding left, DbExpressionBinding right, DbExpressionKind joinType, DbExpression joinCondition)
at MySql.Data.Entity.SelectGenerator.Visit(DbJoinExpression expression)
at System.Data.Common.CommandTrees.DbJoinExpression.Accept[TResultType](DbExpressionVisitor1 visitor)
at MySql.Data.Entity.SqlGenerator.VisitInputExpression(DbExpression e, String name, TypeUsage type)
at MySql.Data.Entity.SelectGenerator.VisitInputExpressionEnsureSelect(DbExpression e, String name, TypeUsage type)
at MySql.Data.Entity.SelectGenerator.Visit(DbFilterExpression expression)
at System.Data.Common.CommandTrees.DbFilterExpression.Accept[TResultType](DbExpressionVisitor1 visitor)
at MySql.Data.Entity.SqlGenerator.VisitInputExpression(DbExpression e, String name, TypeUsage type)
at MySql.Data.Entity.SelectGenerator.VisitInputExpressionEnsureSelect(DbExpression e, String name, TypeUsage type)
at MySql.Data.Entity.SelectGenerator.Visit(DbProjectExpression expression)
at System.Data.Common.CommandTrees.DbProjectExpression.Accept[TResultType](DbExpressionVisitor1 visitor)
at MySql.Data.Entity.SelectGenerator.GenerateSQL(DbCommandTree tree)
at MySql.Data.MySqlClient.MySqlProviderServices.CreateDbCommandDefinition(DbProviderManifest providerManifest, DbCommandTree commandTree)
at System.Data.Common.DbProviderServices.CreateCommandDefinition(DbCommandTree commandTree)
at System.Data.EntityClient.EntityCommandDefinition..ctor(DbProviderFactory storeProviderFactory, DbCommandTree commandTree)
Этот код работает, прежде чем отформатированный мой компьютер. Я использую MySQL 5.5.12, MySQL .NET Connector Version 6.5.4. только версия Netframework может быть изменена, я сделал все обновления для Windows и при установке Visual Studio 2012 автоматически установил .Net 4.5.
Как я могу это исправить?
возможный дубликат: http://stackoverflow.com/questions/14157877/exception-after-installation-of-net-framework-4-5-using-entity-framework-and-my – haim770
Да, proble ms похож на аналогичный, но, к сожалению, решения нет. – Dreamcatcher
Каковы типы 'm_Status' и' m_CompanyRef'? –