Binder.AddRelation returns null

[Dan]

The call to Binder.AddRelation() in the enclosed simple file returns null. This causes the call to .LayoutColumns to fail. I have other more complicated GDBG apps working, but need this to work as a starting point to test some other functionality. Can anyone determine why I get null? Thanks. Simple_4263.zip

[Administrator]

Changing two things made your code work Ok for me.

1) In addition to setting the DataSource, also set the DataMember. (This is necessary if you have a Dataset as your DataSource. If you use teh parent datatable as the datasource, you would not need to set the DataMember).

LoadData();
this.gridDataBoundGrid1.DataSource = ds;
this.gridDataBoundGrid1.DataMember = "LastNames";

2) change the second LayoutColumns line to

hier1.LayoutColumns( 
	new string[] { "Last", "First" } );