Question

Below is a loop I am trying to use to get the values from a GridViewRow into a DataRow object (using the godforsaken language of Visual Basic). However, on this line:

                dr(i) = r.Cells(i).Text

I keep getting the following error message:

the value of type string cannot be converted to system.data.datarow

Can someone point me in the right direction on how to do this?

        Dim rows As New List(Of GridViewRow)()

        For Each item As GridViewRow In grdExpProd.Rows
            rows.Add(item)
        Next

        Dim value As Integer = rows.Count

        Dim dt As New DataTable()


        For index As Integer = value - 1 To 0 Step -1
            Dim dr As DataRow()
            Dim r As GridViewRow = rows(index)

            For i As Integer = 0 To r.Cells.Count - 1
                dr(i) = r.Cells(i).Text
            Next

            dt.Rows.Add(dr)
        Next

Answer 1

I believe you need to be adding your text to the DataRows Item Property which will allow you access to the individual cells of the DataRow. You are also going to need to add the columns that exist in your GridRowView to your new DataTable.

For i = 1 To rows(0).Cells.Count
    dt.Columns.Add("Header" & i)
Next

For index As Integer = value - 1 To 0 Step -1
    Dim dr As DataRow = dt.NewRow()
    Dim r As GridViewRow = rows(index)

    For i As Integer = 0 To r.Cells.Count 
        dr.Item(i) = r.Cells(i).Text
    Next

    dt.Rows.Add(dr)
Next