Different columns for primary nodes and child nodes

[Shamil]

I’d like to create a list based on RadTreeList with different columns for nodes and their child nodes.  For example, I want to list all items that different shops have and therefore my parent node will be a shop with title, address, phone, url and child nodes are items it sells (title, price, quantity, rating, etc).

How can I do that or is there any workaround?

Ps. I wonder that in the “Pro Telerik ASP.NET and Silverlight Controls” book RadTreeList don’t even mentioned.

Regards,
Shamil

[Tsvetina]

Hello Shamil,

The data that you describe does not sound like a self-referencing table, so I think RadTreeList is not the right choice here. You should rather use a hierarchical RadGrid:
Grid Hierarchy

RadTreeList is a relatively new control, so I assume it was not available back when the book was issued.

All the best,
Tsvetina
the Telerik team

[Shamil]

Thank you Tsvetina,

I will check the hierarchical RadGrid, though inner table headers look redundant in my case.

Regards,
Shamil

[Tsvetina]

Hi Shamil,

You can hide the headers with the following code:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    CreateExpandCollapseButton(e.Item, "EmployeeID");
    if (e.Item is GridHeaderItem && e.Item.OwnerTableView != RadGrid1.MasterTableView)
    {
        e.Item.Style["display"] = "none";
    }
}

Greetings,
Tsvetina
the Telerik team

[Maldeeban]

Hi,

Reg : Lazy loading implementation in Telerik:RadTreeList: (URGENT)

Please guide us how to implement the Lazy loading in the RadTreeList.

Requirement Details:

1)     
Pageload will call the Parent storedprocedure (Storedprocedure
1) and fetch the parent data’s.

2)     
When click the expander (‘+’), it’s should call
the child stored procedure (Storedprocedure 2) and bind the child data to the
respective parent in the UI.

Control is implemented for referential purpose usage, like
parent and child having the same header text.

Thanks in Advance…

Thanks,

Maldeeban R

[Konstantin Dikov]

Hello Maldeeban,

RadTreeList support LoadOnDemand functionality, which allows child nodes to be added on the fly as parent nodes are expanded. Detailed information on this functionality and live demo could be found in the following links:

• TreeList - Load on Demand (demo)
• Load On Demand (help)

Hope this helps.


Regards,
Konstantin Dikov
Telerik

 

 

</strong">