clear all data and layout of a ultragrid except its summeries layout

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C#

DataTable

infragistics

Is there any way to set the datasource of a ultragrid without removing its summaries layout?

I have a ultragrid(gvResult) in my winform application.

User can select the columns and also set the sort of them in another form and then apply these changes to gvResult by pressing Apply button.

In addition gvResult must show a row counter summary.

I had to clear gvResult, like below, before applying user's changes to it, otherwise the sort of its columns had not changed to what the user had set.

gvResult.DataSource = new DataTable();
gvResult.DataSource = dataTable_With_New_Set_And_Sort_of_Columns;

but this code have another problem! It removes the row counter summery too, with the other layout settings of gvResult.I searched on infragistics forum and i fined the following code, but it has the first problem, I mean the sort of the columns will remain without any changes.

 BindingSource bs = new BindingSource();
 bs.DataSource = typeof(DataTable);
 bs.DataSource = dataTable_With_New_Set_And_Sort_of_Columns;
 gvResult.DataSource = bs;

Do you have any suggestions?

Excuse me because of my poor english language.