Use DataTable As SQL Parameter

Jun 28, 2006

Hi,

I'm wondering if this is possible. I want to use a datatable as a parameter in my SQL query. The error I am getting is "No mapping exists from object type System.Data.DataColumn to a known managed provider native type."  Any help is appreciated.

 Here is the code.

Private Function GetAvailableTutors(ByVal qualifiedTutorsDataSet As DataTable) As DataTable

Dim TutorAvailabilityDataTable As DataTable = New DataTable()

Using myConnection As New SqlConnection(ConfigurationManager.ConnectionStrings("ASC_Schedule").ConnectionString)

Dim myCommand As SqlCommand = _

New SqlCommand("SELECT TutorID, TimeIndex FROM T_Hours WHERE SessionID > 0 AND TutorID IN (@TutorList) AND DateDropped > GetDATE() ORDER By T_QualifiedTutors.TutorID", myConnection)

myCommand.Parameters.AddWithValue("@TutorList", qualifiedTutorsDataSet.Columns.Item("TutorID"))

Dim myDataAdapter3 As SqlDataAdapter = New SqlDataAdapter()

myDataAdapter3.SelectCommand = myCommand

myDataAdapter3.Fill(TutorAvailabilityDataTable)

Return TutorAvailabilityDataTable



End Using

End Function

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I'm populating a gridview with the following code and all works fine until i try to use an input parameter(see bold below)

If I remove the bold text to get all news all works well.

Any help much appreciated.
Cheers.

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