[Solved] Find Control in Self Referencing Hierarchy

[Djefri]

Hi

I have a self-referencing hierachical radGrid like in my attachement

How to find checkbox control...?

I tried to count MasterTableView.Items.count but the result is always 1.
What am I missing?

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
MsgBox(RadGrid1.MasterTableView.Items.Count)
For Each item As GridItem In RadGrid1.MasterTableView.Items
If TypeOf item Is GridDataItem Then
MsgBox(item.ClientID)
End If
Next
End Sub

<telerik:RadGrid ID="RadGrid1" runat="server" OnColumnCreated="RadGrid1_ColumnCreated" Skin="Office2007" Width="70%"
            OnItemCreated="RadGrid1_ItemCreated" OnItemDataBound="RadGrid1_ItemDataBound" AutoGenerateColumns="false"
             OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView HierarchyDefaultExpanded="true" HierarchyLoadMode="Client" AllowSorting="true" Name="asd" DataKeyNames="mnid, mnparent,mnnameen">
            <SelfHierarchySettings ParentKeyName="mnparent" KeyName="mnid" />
            <Columns>
                <telerik:GridBoundColumn DataField="mnnameen" HeaderText="Menu" UniqueName="mnnameen"></telerik:GridBoundColumn>
                <telerik:GridTemplateColumn UniqueName="CBoxOpenTemplateColumn" HeaderText="Open" HeaderStyle-Width="70px">
                    <ItemTemplate>
                        <asp:CheckBox id="CBoxOpen" runat="server"></asp:CheckBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn UniqueName="CBoxFullTemplateColumn" HeaderText="Full" HeaderStyle-Width="70px">
                    <ItemTemplate>
                        <asp:CheckBox id="CBoxFull" runat="server"></asp:CheckBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn UniqueName="CBoxApprovalTemplateColumn" HeaderText="Approval" HeaderStyle-Width="70px">
                    <ItemTemplate>
                        <asp:CheckBox id="CBoxApproval" runat="server"></asp:CheckBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn UniqueName="CBoxFavoriteTemplateColumn" HeaderText="Favorite" HeaderStyle-Width="70px">
                    <ItemTemplate>
                        <asp:CheckBox id="CBoxFavorite" runat="server"></asp:CheckBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
            </Columns>
            </MasterTableView>
        <ClientSettings AllowExpandCollapse="true" EnableRowHoverStyle="true">
        </ClientSettings>
        </telerik:RadGrid>

in this code I change id of the checkbox

Public Sub HideExpandColumnRecursive(ByVal tableView As GridTableView)
        Dim nestedViewItems As GridItem() = tableView.GetItems(GridItemType.NestedView)

        Dim itemid As String, itemidnya As String
        For Each item As GridItem In tableView.Items
            If TypeOf item Is GridDataItem Then
                Dim dataItem As GridDataItem = CType(item, GridDataItem)
                Dim mnid As String = dataItem.OwnerTableView.DataKeyValues(dataItem.ItemIndex)("mnid")
                Dim mnname As String = dataItem.OwnerTableView.DataKeyValues(dataItem.ItemIndex)("mnnameen")
                itemid = dataItem.ClientID
                Dim data() As String = Split(itemid, "__")

                Dim checkBoxOpen As CheckBox = TryCast(dataItem("CBoxOpenTemplateColumn").FindControl("CBoxOpen"), CheckBox)
                AddEventCbox(checkBoxOpen, "_" & data(1) & "__" & mnid & "__Open", "CheckedChanged('" & data(1) & "','Open',this)")

                Dim checkBoxFull As CheckBox = TryCast(dataItem("CBoxFullTemplateColumn").FindControl("CBoxFull"), CheckBox)
                AddEventCbox(checkBoxFull, "_" & data(1) & "__" & mnid & "__Full", "CheckedChanged('" & data(1) & "','Full',this)")

                Dim checkBoxApproval As CheckBox = TryCast(dataItem("CBoxApprovalTemplateColumn").FindControl("CBoxApproval"), CheckBox)
                AddEventCbox(checkBoxApproval, "_" & data(1) & "__" & mnid & "__Approval", "CheckedChanged('" & data(1) & "','Approval',this)")

                Dim checkBoxFavorite As CheckBox = TryCast(dataItem("CBoxFavoriteTemplateColumn").FindControl("CBoxFavorite"), CheckBox)
                AddEventCbox(checkBoxFavorite, "_" & data(1) & "__" & mnid & "__Favorite", "CheckedChanged('" & data(1) & "','Favorite',this)")

            End If
        Next

        For Each nestedViewItem As GridNestedViewItem In nestedViewItems
            For Each nestedView As GridTableView In nestedViewItem.NestedTableViews
                nestedView.Style("border") = "0"

                Dim MyExpandCollapseButton As Button = DirectCast(nestedView.ParentItem.FindControl("MyExpandCollapseButton"), Button)
                If nestedView.Items.Count = 0 Then
                    If Not MyExpandCollapseButton Is Nothing Then
                        MyExpandCollapseButton.Style("visibility") = "hidden"
                    End If
                    nestedViewItem.Visible = False
                Else
                    If Not MyExpandCollapseButton Is Nothing Then
                        MyExpandCollapseButton.Style.Remove("visibility")
                    End If
                End If

                If nestedView.HasDetailTables Then
                    HideExpandColumnRecursive(nestedView)
                End If
            Next
        Next
    End Sub

Thanks in advance for your help.

[Tsvetoslav]

Hello Djefri,

Going by the screen-shot you do have just one item in the MasterTableView. To get all the items in the grid, just use RadGrid1.Items collection.

Hope it helps.

Regards,
Tsvetoslav
the Telerik team