Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > ComboBox > OnSelectedIndexChanged for editin inplace Grid drop down list

• Jason

  Posted on Jan 22, 2012 (permalink)

  I have a nice grid working, and in place add,edit and delete working great.
  
  However I am now trying to get a drop down list to trigger the "OnSelectedIndexChanged" event so I can obtain the cost and sell price of the part and place it in the appropriate fields.
  
  

  <Columns>

                                                                      <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn"

                                                                          CancelImageUrl="~/Images/cancel_16x16.png" EditImageUrl="~/Images/edit_16x16.png"

                                                                          InsertImageUrl="~/Images/update_16x16.png" UpdateImageUrl="~/Images/update_16x16.png"

                                                                          HeaderStyle-Width="50px">

                                                                          <ItemStyle CssClass="MyImageButton" />

                                                                      </telerik:GridEditCommandColumn>

                                                                      <telerik:GridDropDownColumn DataField="PartId" DataSourceID="qry_Parts" HeaderText="Part"

                                                                          ListTextField="Description" ListValueField="PartId" UniqueName="EditPartId" ColumnEditorID="GridDropDownColumnEditorParts"

                                                                          EnableEmptyListItem="False" HeaderStyle-Width="320px">

                                                                      </telerik:GridDropDownColumn>

  
  Neither the GridBouncColumn or the referering ColumnEditor allow this event.
  
  How can I achive this?
  
  Thanks in advance.

  Attached files

  • dropdownlistingrid1.jpg

  Reply

• Shinu MVP

  Posted on Jan 22, 2012 (permalink)

  Hello Jason,
  
  Try setting DropDownControlType as RadComboBox and attach the event as shown below.
  C#:
  

  protected void grid_ItemDataBound(object sender, GridItemEventArgs e)

  {

   if (e.Item is GridEditableItem && e.Item.IsInEditMode && e.Item.OwnerTableView.Name=="")

    {

      GridEditableItem item = (GridEditableItem)e.Item;

      RadComboBox combo = (RadComboBox)item["EditPartId"].Controls[0];

      combo.AutoPostBack = true;

      combo.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(combo_SelectedIndexChanged);

    }

  }

   void combo_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)

  {

  }

  
  -Shinu.
  

  Reply


• Jason

  Posted on Jan 23, 2012 (permalink)

  Do you have that solution in VB.
  
  Thanks

  Reply

• Jason

  Posted on Feb 8, 2012 (permalink)

  In VB :
  
  combo.SelectedIndexChanged = New RadComboBoxSelectedIndexChangedEventHandler(combo_SelectedIndexChanged)
  
  does not work as "SelectedIndexChanged" is not available from list. "OnClientSelectedIndexChanged" is though.
  
  Pls help.
  
  Thanks.

  Reply

• Shinu MVP

  Posted on Feb 8, 2012 (permalink)

  Hello Jason,
  
  Here is the code in VB.
  VB:
  

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

      If TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode AndAlso e.Item.OwnerTableView.Name = "" Then

          Dim item As GridEditableItem = DirectCast(e.Item, GridEditableItem)

          Dim combo As RadComboBox = DirectCast(item("EditPartId").Controls(0), RadComboBox)

          combo.AutoPostBack = True

          combo.SelectedIndexChanged += New RadComboBoxSelectedIndexChangedEventHandler(combo_SelectedIndexChanged)

      End If

  End Sub

  Private Sub combo_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs)

  End Sub

  
  Here is the link for code-converter.
  http://converter.telerik.com/.
  
  -Shinu.

  Reply

• Jason

  Posted on Feb 8, 2012 (permalink)

  Shinu,
  
  Thanks however I believe your conversion is not total correct. I can get this to compile ok, but when I run it , all get is a postback but nothing happens, it doesn't run the "combo_SelectedIndexChanged".
  
  

  Protected Sub RadGridQuoteItemParts_ItemDataBound(ByVal source As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs)

   

          If e.Item.IsInEditMode And e.Item.OwnerTableView.Name = "" Then

              Dim item As GridEditableItem = DirectCast(e.Item, GridEditableItem)

              Dim combo As RadComboBox = DirectCast(item("EditPartId").Controls(0), RadComboBox)

   

              combo.AutoPostBack = True

              AddHandler combo.Load, AddressOf combo_SelectedIndexChanged

   

              'MsgBox(combo.SelectedValue & "handler added")

          End If

   

      End Sub

   

      Private Sub combo_SelectedIndexChanged(ByVal source As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)

   

          MsgBox("selected")

   

      End Sub

  Reply

• KC

  Posted on Feb 8, 2012 (permalink)

  Hi Jason,
  
  Try wiring the event in RadGridQuoteItemParts_ ItemCreated event instead of in the ItemDataBound event.
  

  Reply

• Jason

  Posted on Feb 9, 2012 (permalink)

  Protected Sub RadGridQuoteItemLabour_ItemCreated(ByVal source As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs)

   

          If e.Item.IsInEditMode And e.Item.OwnerTableView.Name = "" Then

              Dim item As GridEditableItem = DirectCast(e.Item, GridEditableItem)

              Dim combo As RadComboBox = DirectCast(item("EditLabourRateId").Controls(0), RadComboBox)

   

              combo.AutoPostBack = True

              AddHandler combo.SelectedIndexChanged, AddressOf EditLabourRateId_SelectedIndexChanged

   

          End If

   

      End Sub

   

      Private Sub EditLabourRateId_SelectedIndexChanged(ByVal source As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)

   

          Dim intLabourRateIdToLookup As Integer

          Dim strLabourRatePrices As String

          Dim arrLabourRatePrices() As String

          Dim combo As RadComboBox = DirectCast(source, RadComboBox)

          Dim editItem As GridDataItem = DirectCast(combo.NamingContainer, GridDataItem)

          Dim txtEditGridLabourCostRatePerHour As RadNumericTextBox = DirectCast(editItem("EditGridLabourCostRatePerHour").Controls(0), RadNumericTextBox)

          Dim txtEditGridLabourSellRatePerHour As RadNumericTextBox = DirectCast(editItem("EditGridLabourSellRatePerHour").Controls(0), RadNumericTextBox)

          Dim txtEditGridLabourGSTPercentageToApply As RadNumericTextBox = DirectCast(editItem("EditGridLabourGSTPercentageToApply").Controls(0), RadNumericTextBox)

   

          intLabourRateIdToLookup = e.Value

          'Get Cost and Sell prices

          strLabourRatePrices = returnCostSellPriceForSelectedLabour(intLabourRateIdToLookup)

          arrLabourRatePrices = strLabourRatePrices.Split(";")

   

          'Update Values

          txtEditGridLabourCostRatePerHour.Text = arrLabourRatePrices(0)

          txtEditGridLabourSellRatePerHour.Text = arrLabourRatePrices(1)

          txtEditGridLabourGSTPercentageToApply.Text = arrLabourRatePrices(2)

   

      End Sub

  Reply

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