[Solved] Expand/Collapse button in hierarchical grid

[Adam Cole]

Hi,
  Few questions about the expand/collapse button in hierarchical grid.
  1.  Is there a way to move the expand/collapse button to the right side of the grid?
  2.  If there is no way to move it, then is there a way to make it invisible?
  3.  I manually added a GridExpandColumn column to my grid, but I got this error message.  Please help me fix it.
    Multiple controls with the same ID 'GECBtnExpandColumn' were found. FindControl requires that controls have unique IDs.


Thanks.

[Shinu]

Hi Adam,

One suggestion will be to hide the autogenerated exapnd/collapse column and add a new Expand/collapse column at the right end with UniqueName set.

CS:

1. To hide the autogenerated Expand/Collapse column

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

foreach (GridColumn col in RadGrid1.MasterTableView.RenderColumns)

{

if (col.UniqueName == "ExpandColumn")

{

col.Display = false;

}

}

}

2. Try adding a new expand/collapse column with UniqueName property set

 <telerik:GridExpandColumn  UniqueName="NewExpandColumn" ></telerik:GridExpandColumn>

Thanks
Shinu

[Adam Cole]

Thank you.  It's what I need.

[Gourangi]

Hi,

I am using SelfHierarchy.
I just want to hide/change expand/collapse image of leaf nodes (which dont have further sub nodes).
How can I achieve that?

Thanks & Regards,
Divyesh Chapaneri

[Shinu]

Hi Divyesh,

Check out the following help article which explains how to achieve the desired requirement.
Hiding the expand/collapse images when no records in Self-Referencing hierarchy

Shinu

[Yuvika]

Hi,

I want the functionality that expand/collapse button should not be visible for leaf node's. It code example from the following link:
http://www.telerik.com/help/aspnet-ajax/grdhideexpandcollapseimageswhennorecordsinselfreferencinghierarchy.html
works well if HierarchyDefaultExpanded="true", HierarchyLoadMode="ServerOnDemand"
In other case when HierarchyDefaultExpanded="true" is false, it does not work as the nestedView does not bind at once beacuse I have HierarchyLoadMode="ServerOnDemand".
Can I achieve the functionality to hide the leaf node expand collapse button keeping my these 2 properties as it is. As I dont want the user to show the data expanded.
Please reply.

Thanks,
Yuvika