Export (0) Print
Expand All

ObjectQuery.GetResultType Method

Returns information about the result type of the query.

Namespace:  System.Data.Objects
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

'Declaration
Public Function GetResultType As TypeUsage

Return Value

Type: System.Data.Metadata.Edm.TypeUsage
A TypeUsage value that contains information about the result type of the query.

This example is based on the Adventure Works Sales Model. The example creates an ObjectQuery(Of T) of type DbDataRecord and uses GetResultType to determine whether the type returned represents a row.

Using context As New AdventureWorksEntities()
    Dim queryString As String = "SELECT VALUE product " & "FROM AdventureWorksEntities.Products AS product" 
    Dim query As New ObjectQuery(Of DbDataRecord)(queryString, context)

    Dim type As TypeUsage = query.GetResultType()
    If TypeOf type.EdmType Is RowType Then 
        Dim row As RowType = TryCast(type.EdmType, RowType)
        For Each column As EdmProperty In row.Properties
            Console.WriteLine("{0}", column.Name)
        Next 
    End If 
End Using

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Show:
© 2014 Microsoft