[Solved] How to handle Event with Grid with User Control

[Dinesh]

Hi,

I have create a page (aspx with Rad Grid) and another web control with (ascx).

The ascx will be used to add/edit data in grid.

        <EditFormSettings EditFormType="WebUserControl" UserControlName="BoardPositionDetails.ascx">
        </EditFormSettings>

In WebUserControl I have used a RadTreeView. I am going to use on demand loading with rad tree. My problem is any event of radtree does not call the code behind event methods.

Is this possible to do ?

Thanks in advance

Dinesh

[Simon]

Hi Dinesh,

Yes, it is possible.

Please examine the attached project.

It should give you the basic idea of the implementation.

Regards,
Simon
the Telerik team

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[Dinesh]

Hi,

Thanks for the reply. I have done it in same way. The coding is as follows. And we are using RadControls for ASP.NET Q2 2007.

After that I try it with template mode in RadGrid. It also dosn't work.
Here is the aspx rad grid code.

<radG:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
            GridLines="None" OnItemCreated="RadGrid1_ItemCreated">
            <ExportSettings>
                <Pdf PageBottomMargin="" PageFooterMargin="" PageHeaderMargin="" PageHeight="11in"
                    PageLeftMargin="" PageRightMargin="" PageTopMargin="" PageWidth="8.5in" />
            </ExportSettings>
            <MasterTableView DataKeyNames="BOARDPOSITIONID" DataSourceID="SqlDataSource1" CommandItemDisplay="Top">
                <RowIndicatorColumn Visible="False">
                    <HeaderStyle Width="20px" />
                </RowIndicatorColumn>
                <ExpandCollapseColumn Resizable="False" Visible="False">
                    <HeaderStyle Width="20px" />
                </ExpandCollapseColumn>
                <Columns>
                    <radG:GridBoundColumn DataField="BOARDPOSITIONID" DataType="System.Guid" HeaderText="BOARDPOSITIONID"
                        ReadOnly="True" SortExpression="BOARDPOSITIONID" UniqueName="BOARDPOSITIONID">
                    </radG:GridBoundColumn>
                    <radG:GridBoundColumn DataField="NAME" HeaderText="NAME" SortExpression="NAME" UniqueName="NAME">
                    </radG:GridBoundColumn>
                    <radG:GridBoundColumn DataField="DESCRIPTION" HeaderText="DESCRIPTION" SortExpression="DESCRIPTION"
                        UniqueName="DESCRIPTION">
                    </radG:GridBoundColumn>
                    <radG:GridEditCommandColumn>
                    </radG:GridEditCommandColumn>
                </Columns>
                <EditFormSettings EditFormType="Template">
                    <EditColumn UniqueName="EditCommandColumn1">
                    </EditColumn>
                    <FormTemplate>
                        <asp:Label ID="Label1" runat="server" Text="Name"></asp:Label>
                        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
                        <br />
                        <asp:Label ID="Label2" runat="server" Text="Description"></asp:Label>
                        <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
                        <br />
                        <asp:Label ID="Label3" runat="server" Text="Permission"></asp:Label><br />
                        <radT:RadTreeView ID="RadTreeView1" runat="server" AutoPostBack="True" OnNodeExpand="RadTreeView1_NodeExpand"
                                        OnClientNodeChecked="ClientNodeChecked">
                        </radT:RadTreeView>
                        <br />
                        <br />
                        <asp:Button ID="Button1" runat="server" Text="Insert" CommandName="PerformInsert" OnClick="Button1_Click" />
                        <asp:Button ID="Button3" runat="server" Text="Update" CommandName="Update" />
                        <asp:Button ID="Button2" runat="server" Text="Cancel" CommandName="Cancel"/>
                    </FormTemplate>
                </EditFormSettings>
            </MasterTableView>
            <AJAXLoadingTemplate>
            </AJAXLoadingTemplate>
        </radG:RadGrid>

Here is the code behind code
on Page Load

            n = new RadTreeNode("Node 1", "A");
            n.ExpandMode = ExpandMode.ServerSideCallBack;
            rtv.Nodes.Add(n);

            n = new RadTreeNode("Node 2", "B");
            n.ExpandMode = ExpandMode.ServerSideCallBack;
            rtv.Nodes.Add(n);

            n = new RadTreeNode("Node 3", "C");
            n.ExpandMode = ExpandMode.ServerSideCallBack;
            rtv.Nodes.Add(n);

            n = new RadTreeNode("Node 4", "D");
            n.ExpandMode = ExpandMode.ServerSideCallBack;
            rtv.Nodes.Add(n);

On Expand Event

        protected void RadTreeView1_NodeExpand(object o, RadTreeNodeEventArgs e)
        {
            string test = e.NodeClicked.Text;
        }

This is work If I change

// n.ExpandMode = ExpandMode.ServerSideCallBack;
 n.ExpandMode = ExpandMode.ServerSide;

Will it be a problem of the version of rad controls with us ? (RadControls for ASP.NET Q2 2007.)

Thank You

Dinesh

[Simon]

Hi Dinesh,

As I examined your code, I noticed that you are using RadTreeView Classic. Unfortunately, the NodeExpand event in this will not fire and this is a limitation of the control.

Please use RadTreeView for ASP.NET AJAX instead, as it works normally in the same case.

All the best,
Simon
the Telerik team

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