Find Control On Insert Item

[Trevor]

I need to get a reference to a combo box on that is in an edittemplatecolumn. I only need the reference on post back after the first combo box has an item selected.

As you can see below I have a very simple grid for testing purposes. I basically just want to select cmboCondition and have it auto post back. On item index changed, I want to populate cmboCondition2 however I can't get a reference to cmboCondition2.

<telerik:RadGrid ID="gridConditions" EnableTheming="false" runat="server" AllowPaging="false" AllowSorting="false" AllowFilteringByColumn="false" PageSize="1000" AutoGenerateColumns="false">
    <GroupingSettings CaseSensitive="false" />
    <ClientSettings>
        <Scrolling AllowScroll="False" />
        <Selecting AllowRowSelect="true" />
    </ClientSettings>
    <MasterTableView CommandItemDisplay="Top" AllowNaturalSort="false" NoMasterRecordsText="There are no conditions. Please add one to the rule." ShowHeader="false">
        <CommandItemTemplate>
            <div style="padding-left:8px; padding-right:8px; padding-top:6px; padding-bottom:6px;">
                <table width="100%">
                    <tr>
                        <td runat="server" Visible='<%# Not gridConditions.MasterTableView.IsItemInserted%>'>
                            <asp:LinkButton ID="btnAddCondition" runat="server" ToolTip="Add Condition" CommandName="InitInsert" Visible='<%# Not gridConditions.MasterTableView.IsItemInserted%>'><asp:Image ID="imgAddCondition" runat="server" ImageUrl="~/images/add_button.gif"/>Add</asp:LinkButton>
                            <asp:LinkButton ID="btnDeleteCondition" runat="server" ToolTip="Delete Condition" OnClientClick = " return confirm('Are you sure you want to delete the selected condition?');" CommandName="DeleteSelected" Visible='<%# Not gridConditions.MasterTableView.IsItemInserted%>'><asp:Image ID="Image1" runat="server" ImageUrl="~/images/delete_button.gif"/>Delete</asp:LinkButton>
                        </td>
                        <td runat="server" Visible='<%# gridConditions.MasterTableView.IsItemInserted%>'>
                        <asp:LinkButton ID="btnInsertCondition" runat="server" ToolTip="Confirm Add" CommandName="PerformInsert" Visible='<%# gridConditions.MasterTableView.IsItemInserted%>'><asp:Image ID="imgInsertCondition" runat="server" ImageUrl="~/images/updaterecord_button.gif"/>Confirm Add</asp:LinkButton>
                            <asp:LinkButton ID="btnCancelCondition" runat="server" ToolTip="Cancel Add" CommandName="CancelAll" Visible='<%# gridConditions.EditIndexes.Count > 0 or gridConditions.MasterTableView.IsItemInserted %>'><asp:Image ID="imgCancelCondition" runat="server" ImageUrl="~/images/cancel_button.gif"/>Cancel Add</asp:LinkButton>
                        </td>
                    </tr>
                </table>
            </div>
        </CommandItemTemplate>
        <Columns>
            <telerik:GridTemplateColumn UniqueName="Condition" HeaderText="" AllowFiltering="false" ItemStyle-Wrap="false">
                <ItemTemplate>
                    <table>
                        <tr>
                            <td>
                                <asp:Label runat="server" ID="lblCondition" Text="" />
                            </td>
                            <td>
                                <asp:Label runat="server" ID="lblCondition2" Text="" />
                            </td>
                            <td>
                                <asp:Label runat="server" ID="lblValue" Text="" />
                            </td>
                        </tr>
                    </table>
                </ItemTemplate>
                <EditItemTemplate>
                    <table>
                        <tr>
                            <td>
                                <telerik:RadComboBox runat="server" ID="cmboCondition" AutoPostBack="true" OnSelectedIndexChanged="cmboCondition_OnSelectedIndexChanged">
                                    <Items>
                                        <telerik:RadComboBoxItem Text="Select One" Value="0" />
                                        <telerik:RadComboBoxItem Text="The sender ..." Value="1" />
                                        <telerik:RadComboBoxItem Text="The recipient ..." Value="2" />
                                        <telerik:RadComboBoxItem Text="The subject or body ..." Value="3" />
                                        <telerik:RadComboBoxItem Text="Any attachment ..." Value="4" />
                                        <telerik:RadComboBoxItem Text="Any recipient ..." Value="5" />
                                        <telerik:RadComboBoxItem Text="A message header ..." Value="6" />
                                    </Items>
                                </telerik:RadComboBox>
                            </td>
                            <td>
                                <telerik:RadComboBox runat="server" ID="cmboCondition2"/>
                            </td>
                            <td>
                                This is where the value popup goes
                            </td>
                        </tr>
                    </table>
                </EditItemTemplate>
            </telerik:GridTemplateColumn>
        </Columns>
    </MasterTableView>
</telerik:RadGrid>

Private Sub PopulateConditions(ByVal clientID As String)
        Dim cmboCondition2 As RadComboBox = gridConditions.MasterTableView.FindControl(clientID)

        For Each item As GridDataItem In gridConditions.EditItems
            cmboCondition2 = CType(item("Condition").FindControl("cmboCondition2"), RadComboBox)
        Next

        If Not cmboCondition2 Is Nothing Then
            Dim prmParentID As New SqlParameter("@ParentID", cmboCondition2.SelectedValue)
            Dim arrParameters() As SqlParameter = {prmParentID}

            Dim dsValues As DataSet = mySQLFunctions.SQLStoredProc("sp_selectDLPConditionsByParentID", arrParameters)

            If dsValues.Tables.Count > 0 Then
                cmboCondition2.DataSource = dsValues.Tables(0)
                cmboCondition2.DataTextField = "Text"
                cmboCondition2.DataValueField = "Value"
                cmboCondition2.DataBind()
            End If
        End If
    End Sub

    Protected Sub gridConditions_NeedDataSource(sender As Object, e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles gridConditions.NeedDataSource
        gridConditions.DataSource = New Datatable()
    End Sub

    Protected Sub gridConditions_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs)
        If TypeOf e.Item Is GridCommandItem Then

            Dim commandItem As GridCommandItem = CType(e.Item, GridCommandItem)
            Dim insertButton As LinkButton = CType(commandItem.FindControl("PerformInsertButton"), LinkButton)
            Dim cancelButton As LinkButton = CType(commandItem.FindControl("CancelButton"), LinkButton)

            insertButton.Visible = False
            cancelButton.Visible = False
        End If
    End Sub

    Protected Sub cmboCondition_OnSelectedIndexChanged(ByVal sender As RadComboBox, ByVal e As EventArgs)
        PopulateConditions(sender.ClientID & "2")
    End Sub

 

[Trevor]

I have found the anwwer that I needed for this in case anyone needed it.

Dim item As GridEditFormInsertItem = CType(gridConditions.MasterTableView.GetItems(GridItemType.EditFormItem)(0), GridEditFormInsertItem)

        cmboCondition = CType(item("Condition").FindControl("cmboCondition"), RadComboBox)

 

However, I now need to do the same exact thing client side. I need javascript that allows me to access the row that is going to be inserted. This is what I have. I also tried get_insertitem() with no luck.

function OnClientClose(oWnd, args) {
        //get the transferred arguments
        var arg = args.get_argument();

        if (arg) {
            var EntityKeyName = $find("<%= gridConditions.ClientID%>").get_masterTableView().get_dataItems()[0].findControl("lblTest");
            var editForm = $find("<%= gridConditions.ClientID%>").get_masterTableView().get_editItems()[0];
            alert(editForm);
        }
    }