Check out this link, it helps. http://documentation.devexpress.com/#windowsforms/CustomDocument2567
gridView1.ActiveFilterString = "[YOURCOLUMN] > 0";
Question
How can I modify the default filter operator on DevExpress.Xtragrid.gridcontrol and add a new value there with what is already there.
Simple I want to add "Greater than > 0" to a numeric value column, keeping what it is already there.
Solution 2
Check out this link, it helps. http://documentation.devexpress.com/#windowsforms/CustomDocument2567
gridView1.ActiveFilterString = "[YOURCOLUMN] > 0";
OTHER TIPS
To add yet another condition please combine it with 'AND':
gridView1.ActiveFilterString = gridView1.ActiveFilterString + " AND [ColumnName] > 0";
Update:
You can use the ColumnView.MRUFilters property to customize the recently used filters collection if necessary. Elements in the collection are represented by ViewFilter objects.