Drag and Drop File from Windows Explorer to DataGridView Cell goes into wrong cell

See more:

VB

DataGridView

I'm trying to drag/drop a file from Windows Explorer into a datagridview cell. The end result should be that the file name should appear in the selected cell. I got everything to work except for the fact that the file name gets copied into the wrong datagridview cell. For example, if I try to drag and drop into cell c1,r1, the data goes into c1,r3. It seems pretty consistent that it always goes 2 rows below where I drop it. Here is what I got so far:

Private Sub FormDGVTest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Dim DT As New DataTable

        DT.Columns.Add("C1")
        DT.Columns.Add("C2")
        DT.Columns.Add("C3")
        DT.Columns.Add("C4")

        For x As Integer = 0 To 10
            DT.Rows.Add(x, x + 2, x + 4, x + 6)
        Next
       
        Me.DataGridView1.DataSource = DT

End Sub

Private Sub DataGridView1_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles DataGridView1.DragDrop

        Dim cellvalue As String() = CType(e.Data.GetData(DataFormats.FileDrop), String())

        If cellvalue.Length > 1 Then
            MsgBox("You can only drag and drop one file at a time", MsgBoxStyle.Information, "One file only")
            Exit Sub
        End If

        Dim cursorLocation As Point = Me.PointToClient(New Point(e.X, e.Y))
        Dim hittest As System.Windows.Forms.DataGridView.HitTestInfo = DataGridView1.HitTest(cursorLocation.X, cursorLocation.Y)

        If hittest.ColumnIndex <> -1 AndAlso hittest.RowIndex <> -1 Then
            DataGridView1(hittest.ColumnIndex, hittest.RowIndex).Value = cellvalue(0)
        End If

End Sub

Private Sub DataGridView1_DragOver(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles DataGridView1.DragOver

        e.Effect = DragDropEffects.Copy

End Sub

Any ideas why this is not working?