Grid client side delete and existing values

[Richard Boarman]

I am using the client side delete function on a rad grid that contains rows which include textboxes (contained in a GridTemplateColumn)
The client side function works fine, but when I try to access the current values in the textboxes after deleting a row, I am getting the original value, not the new value that is currently in the text box.
If I don't delete a row first, the correct value is read.

When the save button is clicked, this is run:

For Each itm As GridDataItem In rgIntervalSetup.Items
            If TypeOf itm Is GridDataItem Then
                Dim theID As String = itm("RecordID").Text
                Dim updatedItem As GridDataItem = CType(rgIntervalSetup.MasterTableView.FindItemByKeyValue("RecordID", Integer.Parse(theID)), GridDataItem)
                UpdateValues(updatedItem, False)
            End If
        Next


Protected Sub UpdateValues(ByVal updatedItem As GridDataItem, ByVal KeepAsTempInterval As Boolean)
        Dim txtBox As TextBox = CType(updatedItem.FindControl("txtGridIntervalName"), TextBox)
        Dim IntervalName As String = txtBox.Text

        Dim txtDateBox As RadDateInput = CType(updatedItem.FindControl("txtGridStartDate"), RadDateInput)
        'txtBox = CType(updatedItem.FindControl("txtGridStartDate"), TextBox)
        Dim IntervalStartDate As DateTime = txtDateBox.SelectedDate

        Dim theID As Integer = updatedItem.GetDataKeyValue("RecordID").ToString()


        Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(MyBase.Location.ConnectionString, _
          CommandType.StoredProcedure, _
           "EVAL2_SessionIntervalUpdate", _
           New SqlClient.SqlParameter("@SessionIntervalID", theID), _
           New SqlClient.SqlParameter("@IntervalName", IntervalName), _
           New SqlClient.SqlParameter("@IntervalStartDate", IntervalStartDate.ToUsString), _
                    New SqlClient.SqlParameter("@SessionID", mySession.ID))
    End Sub

[Tsvetoslav]

Hello Richard,

You are correct in your observation - when you delete the record, the text-box in the template column is gone and when the post-back request goes back to the server, RadGrid does not have another place to restore the text-box value from but the ViewState. If you need the old value, you need to persist it and retrieve it on the server (e.g. you can persist those values in a hidden field).

Hope it helps.

All the best,
Tsvetoslav
the Telerik team