Data loading error! Object cannot be converted from DBunll to its type. Error number 13 #, it hasn't been done in three

eiko_1985

Data loading error! Object cannot be converted from DBunll to its type. Error # 13 #

Debug runningsun value is OD


Public runningsum As Double
    Private Sub DataGrid2_ItemDataBound (ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid2.ItemDataBound
        'Dim runningSum As Single
        If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then

            runningsum + = Convert.ToDouble (DataBinder.Eval (e.Item.DataItem, "jshj"))

        ElseIf e.Item.ItemType = ListItemType.Footer Then
 'e.Item.Cells (3) .Text = "<b> Signed total amount: </ b>" + String.Format ("{0: c}", runningsum)
 End If

    End Sub

eiko_1985

The value of debugging runningsun is OD, the actual value is 60

heatheat

You can try it like this
Assuming the field strtmp is DBNull
You can write strtmp as strtmp.tostring (don't care if there is no display prompt), you can convert DBNull to "" (null character)