Obtain clicked node TreeView

[jpbelli]

*Hi,I'm making and AjaxEvent of click event, the problem is about knowing the selected node, I partially solved it using a listener (for click event) that calls an AjaxMethod using the parameter node. But I want to make it with an AjaxEvent
How can I obtain the Clicked node?


Thanks

[Vladimir]

Hi,

You can pass pass selected node with ExtraParams.

<ext:TreePanel ID="TreePanel1" runat="server">
   ....
    <AjaxEvents>
        <Click OnEvent="NodeClick">
            <ExtraParams>
                <ext:Parameter Name="NodeID" Value="node.id" Mode="Raw" />
            </ExtraParams>
        </Click>
    </AjaxEvents>
</ext:TreePanel>

Then on server side you can read this parameter.

protected void NodeClick(object sender, AjaxEventArgs e)
{
    string id = e.ExtraParams["NodeID"];
}

[jpbelli]

*Thanks!
How do you know that "node" was avaliable to use it as a parameter value, I have the same problem in a couple of other events. I don't know in which context is the event running (what data or variables are available)Thanks again :D

[Vladimir]

Hi,

All listeners arguments are available in ExtJS documentation
http://extjs.com/deploy/dev/docs/


You can refernce to these arguments in AjaxEvent extra params by name or by index (params[index])*