Once again, i find your documentation and demos so convoluted that I have given up trying to make any sense out it.

I am again trying to accomplish a very simple thing: make a hierarchical grid out of a simple, 2-table relational dataset.

All I wish to do is to create a simple parent-child hierachy in a RadGrid, using an ADO DataSet object containing 2 tables, with a DataRelation already added to the DataSet, which should be enough to establish a parent-child relationship.

Here is dummy code that creates the DataSet:

DataTable dt1 = new DataTable();

DataTable dt2 = new DataTable();

DataSet ds = new DataSet();

DataRow myRow;

dt1.Columns.Add(

"Period");

dt1.Columns.Add(

"Period_Name");

dt2.Columns.Add(

"Period");

dt2.Columns.Add(

"File_Name");

dt2.Columns.Add(

"Size");

myRow = dt1.NewRow();

myRow[

"Period"] = "60";

myRow[

"Period_Name"] = "April 2011";

dt1.Rows.Add(myRow);

myRow = dt1.NewRow();

myRow[

"Period"] = "59";

myRow[

"Period_Name"] = "March 2011";

dt1.Rows.Add(myRow);

myRow = dt1.NewRow();

myRow[

"Period"] = "58";

myRow[

"Period_Name"] = "February 2011";

dt1.Rows.Add(myRow);

myRow = dt1.NewRow();

myRow[

"Period"] = "57";

myRow[

"Period_Name"] = "January 2011";

dt1.Rows.Add(myRow);

myRow = dt2.NewRow();

myRow[

"Period"] = "60";

myRow[

"File_Name"] = "User_60_123456_1.pdf";

myRow[

"Size"] = "923324";

dt2.Rows.Add(myRow);

myRow = dt2.NewRow();

myRow[

"Period"] = "60";

myRow[

"File_Name"] = "User_60_123456_2.pdf";

myRow[

"Size"] = "433324";

dt2.Rows.Add(myRow);

myRow = dt2.NewRow();

myRow[

"Period"] = "60";

myRow[

"File_Name"] = "User_60_123456_3.pdf";

myRow[

"Size"] = "693324";

dt2.Rows.Add(myRow);

ds.Tables.Add(dt1);

ds.Tables.Add(dt2);

DataRelation dRel = new DataRelation("Period_to_PDF", ds.Tables[0].Columns["Period"],

ds.Tables[1].Columns[

"Period"]);

ds.Relations.Add(dRel);

Do you have a detailed example of a simple service that is defined in a separate VS project / IIS site and is being called from a RadComboBox to perform autocomplete ?