You may have known using ValidationType.DropDownList/List/FreeList to create dropdownlist cells. The control support value/text pair in dropdownlist/list/freelist. You may use the Validation.ValueList.Add method to add new value/text pair into the list.

[C#]

// adds to a bindcolumn

        GridWeb1.WebWorksheets[0].BindColumns["CategoryID"].Validation.ValueList.Add("1,1:test");

// adds to a validation cell

  GridWeb1.WebWorksheets[1].Cells["A1"].Validation.ValueList.Add("1,1:test");

[VB]

' adds to a bindcolumn

        GridWeb1.WebWorksheets(0).BindColumns("CategoryID").Validation.ValueList.Add("1,1:test")

' adds to a validation cell

  GridWeb1.WebWorksheets(1).Cells("A1").Validation.ValueList.Add("1,1:test")

As you can see, the "1" is the value of the list item, and the "1:test" is the displayed text of the list item.

And you may use the LoadValueList method to load list items from a dataview object:

[C#]

GridWeb1.WebWorksheets[0].BindColumns["CategoryID"].Validation.LoadValueList(dataSet31.Categories.DefaultView, "CategoryID", "CategoryName", true);

[VB]

GridWeb1.WebWorksheets(0).BindColumns("CategoryID").Validation.LoadValueList(dataSet31.Categories.DefaultView, "CategoryID", "CategoryName", True)