var ClientToEdit = _db.v_UserDetails.First(p => p.UserName == id);

exec sp_executesql N'SELECT TOP (1) 
[Extent1].[Account] AS [Account], 
[Extent1].[AccountDate] AS [AccountDate], 
[Extent1].[AccountID] AS [AccountID], 
[Extent1].[ClientAccountID] AS [ClientAccountID], 
[Extent1].[Comment] AS [Comment], 
[Extent1].[Email] AS [Email], 
[Extent1].[FullName] AS [FullName], 
[Extent1].[phone] AS [phone], 
[Extent1].[UserName] AS [UserName]
FROM (SELECT 
      [v_UserDetails].[Account] AS [Account], 
      [v_UserDetails].[AccountDate] AS [AccountDate], 
      [v_UserDetails].[AccountID] AS [AccountID], 
      [v_UserDetails].[ClientAccountID] AS [ClientAccountID], 
      [v_UserDetails].[Comment] AS [Comment], 
      [v_UserDetails].[Email] AS [Email], 
      [v_UserDetails].[FullName] AS [FullName], 
      [v_UserDetails].[phone] AS [phone], 
      [v_UserDetails].[UserName] AS [UserName]
      FROM [dbo].[v_UserDetails] AS [v_UserDetails]) AS [Extent1]
WHERE [Extent1].[UserName] = @p__linq__2', N'@p__linq__2 nvarchar(6)', @p__linq__2 = N'1vudu1'

TOP (1) 

<add name="osmpdbEntities" connectionString="metadata=res://*/osmpdb.csdl|res://*/osmpdb.ssdl|res://*/osmpdb.msl;provider=System.Data.SqlClient;provider connection string="Data Source=(local);Initial Catalog=osmpdb;Persist Security Info=True;User ID=xxxxxxx;Password=xxxxxxx;MultipleActiveResultSets=True"" providerName="System.Data.EntityClient" />