HI~

I want to fix the ColumnHeader. 

but in case I set the multi header, it doesn't work.

How I can do this?

source here:

ultraGrid1.DisplayLayout.UseFixedHeaders = true;

ultraGrid1.DisplayLayout.Bands[0].RowLayoutStyle = RowLayoutStyle.GroupLayout;

UltraGridBand band = ultraGrid1.DisplayLayout.Bands[0];

UltraGridColumn column = null;

column = band.Columns.Add("1", "col1");

column.RowLayoutColumnInfo.OriginX = 0;

column.RowLayoutColumnInfo.OriginY = 0;

column.RowLayoutColumnInfo.SpanX = 1;

column.RowLayoutColumnInfo.SpanY = 2;

column = band.Columns.Add("2", "col2");

column.RowLayoutColumnInfo.OriginX = 1;

column.RowLayoutColumnInfo.OriginY = 0;

column.RowLayoutColumnInfo.SpanX = 1;

column.RowLayoutColumnInfo.SpanY = 2;

column = band.Columns.Add("3", "col3");

column.RowLayoutColumnInfo.OriginX = 2;

column.RowLayoutColumnInfo.OriginY = 0;

column.RowLayoutColumnInfo.SpanX = 2;

column.RowLayoutColumnInfo.SpanY = 1;

column = band.Columns.Add("3_1", "col3-1");

column.RowLayoutColumnInfo.OriginX = 2;

column.RowLayoutColumnInfo.OriginY = 1;

column.RowLayoutColumnInfo.SpanX = 1;

column.RowLayoutColumnInfo.SpanY = 1;

column = band.Columns.Add("3_2", "col3-2");

column.RowLayoutColumnInfo.OriginX = 3;

column.RowLayoutColumnInfo.OriginY = 1;

column.RowLayoutColumnInfo.SpanX = 1;

column.RowLayoutColumnInfo.SpanY = 1;

Infragistics.Win.UltraWinGrid.ColumnHeader columnHeader = null;

columnHeader = ultraGrid1.DisplayLayout.Bands[0].Columns["1"].Header;

columnHeader.Fixed = true;