Thank you

I tried the version with the value list, I did everithing like in the example. But I dont see even the added column in my grid.

What I am doing wrong

This is my code, it doesnt eror out but the column is not added to the grid

private void grdValidShipTo_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)  {   // ** Place Event Handling Code Here **      grdValidShipTo.DisplayLayout.Bands[0].Columns.Add("NewColumn", "NewColumn");      grdValidShipTo.DisplayLayout.Bands[0].Columns["NewColumn"].Style = Infragistics.Win.UltraWinGrid.ColumnStyle.DropDownList;      grdValidShipTo.DisplayLayout.Bands[0].Columns["NewColumn"].ValueList = createFirstValueList();     }      private ValueList createFirstValueList()  {   ValueList vl1 = new ValueList( );    vl1.ValueListItems.Add( 1, "True" );    vl1.ValueListItems.Add( 2, "False" );   return vl1;  }

I also tried this ,without success.

I am aslo calling bindUltraDropDown() in load event

private void grdValidShipTo_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)  {   // ** Place Event Handling Code Here **      e.Layout.Bands[0].Columns["Int32 1"].ValueList = ultraDropDown1;     }    private void bindUltraDropDown()  {   DataTable dt = new DataTable();      dt.Columns.Add("ID", typeof(int));      dt.Columns.Add("DisplayText", typeof(string));        dt.Rows.Add(new object[] {1, "A"});      dt.Rows.Add(new object[] {2, "B"});      dt.Rows.Add(new object[] {3, "C"});      dt.AcceptChanges();     UltraDropDown ultraDropDown1 = new UltraDropDown();      ultraDropDown1.SetDataBinding(dt, null);      ultraDropDown1.ValueMember = "ID";      ultraDropDown1.DisplayMember = "DisplayText";

 }

Well, I don't see anything wrong with your code that's adding the column. My best guess is that something is happening after this code is executed which is removing the column. Maybe you are calling grid.DisplayLayout.Load and blowing away these settings.

If that's not the case, maybe you can post a small sample project demonstrating the problem, and I'd be happy to tell you why it's not working.

Thank you

I figured out how to achieve the combo box

Now I have problem displaying two fields in the combo box

I want to display CustID and Name and the value will be only CustID

foreach(DataRow listRow in dsListCustomer.Tables[0].Rows)   

 {     valueList.ValueListItems.Add(listRow["CustID"].ToString(), listRow["Name"].ToString());  

  }

Please could you paste the code as I have arrived at a similar problem and would like to see what you have done to make the combox work