Home / Community & Support / Developer Productivity Tools Forums / ASP.NET > Grid > Problem to Find controls in addnewrow event

• Manuel

  Posted on Jun 15, 2011 (permalink)

  Hi
  
  I have a problem witn an object inside a radgrid, I´m trying to refill a DROPDOWNLIST inside a RADGRID using the characters entered in a textbox that is outside the RADGRID, but i can´t find the DROPDOWNLIST.  This code snippet works correctly when editing a record in the radgrid but the object (dropdownlist) can´t be founded at the moment of adding a new record on it.  This is the code snippet:
  
  

  
  

  For Each item As Telerik.Web.UI.GridDataItem In RadGrid1.MasterTableView.Items

      Dim DDL_CODIGO_CUENTA As DropDownList = CType(item.FindControl("DDL_CODIGO_CUENTA"), DropDownList)

      If TypeOf DDL_CODIGO_CUENTA Is DropDownList Then

        cWhere_Tmp = cWhere_Tmp & " AND NOMBRE_CUENTA LIKE '%" & TXN_BUSCAR.Text & "%'"

        If Convert.ToString(ViewState("Estado")) = "RadGrid1_Editar" Then

          cWhere_Tmp = "(" & cWhere_Tmp & ") OR CODIGO_CUENTA = '" & Sustraer_Codigo_Cuenta(DDL_CODIGO_CUENTA.SelectedValue) & "'"

        End If 'Convert.ToString(ViewState("Estado")) = "RadGrid1_Editar" Then

        cError = Llenar_Lista_Cuentas(cOleDbCnn, item, DDL_CODIGO_CUENTA.SelectedValue, cWhere_Tmp)

        If cError <> "" Then

          Aplicar_Filtro_Cuentas = cError

          Exit Function

        End If 'cError <> "" Then

      End If 'TypeOf DDL_CODIGO_CUENTA Is DropDownList Then

    Next

  
  Thanks in advance.

  
  

• Shinu MVP

  Posted on Jun 16, 2011 (permalink)

  Hello Manuel,
  
  You can access the DropDownlist by using findControl().
  VB:
  

  Protected Sub RadGrid1_ItemDataBound(sender As Object, e As GridItemEventArgs)

      If TypeOf e.Item Is GridEditFormItem AndAlso e.Item.IsInEditMode Then

          Dim edititem As GridEditFormItem = DirectCast(e.Item, GridEditFormItem)

          Dim drp As DropDownList = DirectCast(edititem.FindControl("DropdownList1"), DropDownList)

      End If

  End Sub

  
  Thanks,
  Shinu.

• Manuel

  Posted on Jun 16, 2011 (permalink)

  Hello Shinu, thaks, i have tried that, but what I want is to refill the DROPDOWNLIST (in the addnewrow event) from a button that is outside the RADGRID, like the TEXTBOX and refresh it each time the button is pressed taking the characters from the textbox as a filter.

• Princy MVP

  Posted on Jun 17, 2011 (permalink)

  Hello Manuel,
  
  You can access the InsertForm in an external event as shown below. Hope this helps.
  
  VB:
  

  If RadGrid1.MasterTableView.IsItemInserted Then

      Dim item1 As GridEditFormInsertItem = DirectCast(RadGrid1.MasterTableView.GetInsertItem(), GridEditFormInsertItem)

      Dim ddl As DropDownList = DirectCast(item1.FindControl("dropdown"), DropDownList)

      RadGrid1.MasterTableView.Rebind()

  End If

  
  Thanks,
  Princy.

• Manuel

  Posted on Jun 20, 2011 (permalink)

  Thank you very much, it works, I can find the control now and make the routine that inserts the new list, but I can´t refresh the control to make appear that new list.  Do you have any idea?  Thak you very much again.

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