gridGroupingControl1.Table.ExpandAllGroups() not working

I have a flat datasource that is bound to a ggc and grouped by one column.

When I called....
this.gridGroupingControl1.Table.CollapseAllRecords();

...the grid collaspes fine but then I called...

this.gridGroupingControl1.Table.ExpandAllGroups()

...nothing happens.

Hi James,

Thanks for being patience.

You can collapse and expand groups by using the following code snippet.
>>>>>>>> Code Snippet 1<<<<<<<<<<
// Expand the groups
this.gridGroupingControl1.Table.ExpandAllGroups();

// Collapse the groups
this.gridGroupingControl1.Table.CollapseAllGroups();
>>>>>>>>>>>>>>><<<<<<<<<<<<<

>>>>>>>> Code Snippet 2<<<<<<<<<<
// Expand the records
this.gridGroupingControl1.Table.ExpandAllRecords();
// Collapse the records
this.gridGroupingControl1.Table.CollapseAllRecords();
>>>>>>>>>>>>>>><<<<<<<<<<<<<

In your code snippet, we could see the CollapseAllRecords being used intead of CollapseAllGroups. Please re-check it and let us know if you need any further assistance.

Have a nice day.

Best regards,
Madhan

Did see the mistake... Anyway.. I change the code and it is still not working.
Only collaspe works, expands never works.

Here's my code snippet

bool chk = chkExpandCollaspeLineGroup.Checked;

if (chk)
{
this.gridGroupingControl1.Table.CollapseAllGroups();
log.Error("CollapseAllGroups=" + chk);
}
else
{
this.gridGroupingControl1.Table.ExpandAllGroups();
log.Error("ExpandAllGroups=" + chk);
}

I need to mention that I am using a Custom ENgine with this grid, so I am not sure if that's causing the problem...

Hi James,

Thank you for being patience.

Please refer to the following demo sample which demonstrates expand and collapse of the groups in the GridGroupingControl without any issues for a custom engine. Is it possible for you to update us the modified sample to reproduce the issue here, it would help us to debug your issue at the earliest.
GGC_ExtraSection.zip

Kindly let us know if you need any further assistance.
Have a nice day.

Best regards,
Madhan