Hello Kiryl,

To remove GroupByRowConnector of UltraGrid while your band is grouped you need to set IndentationGroupByRow property of your UltraGrid band to 0. You can do this in the designer or run time by code like this:

this.ultraGrid1.DisplayLayout.Bands[0].IndentationGroupByRow = 0;

You may learn more about IndentationGroupByRow property by following the next link http://help.infragistics.com/Doc/WinForms/current/CLR4.0/?page=Infragistics4.Win.UltraWinGrid.v14.2~Infragistics.Win.UltraWinGrid.UltraGridBand~IndentationGroupByRow.html

Please check attached sample solution and let me know if this is what you are looking for or if I am missing something.