Hello all

I am trying to set the relations of rows in DataSet and then to show that relation in XTraaTreeList as tree with relations.

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but i get

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I am doing this code but i get a view without any relations i get them all in one level.

Any idea what i am doing wrong ?

                    this.treeList1.BeginUpdate();
                    this.dataTable1.Clear();

                    DataRow dr = this.dataTable1.NewRow();
                    dr[0] = "father";
                    dr[1] = true;
                    dr[2] = "ddd";
                    this.dataTable1.Rows.Add(dr);

                    DataRow dr1 = this.dataTable1.NewRow();
                    dr1[0] = "son";
                    dr1[1] = true;
                    dr1[2] = "ddd";

                    dr1.SetParentRow(dr);
                    this.dataTable1.Rows.Add(dr1);



                    DataRow dr2 = this.dataTable1.NewRow();
                    this.dataTable1.ParentRelations()
                    dr2[0] = "grand son";
                    dr2[1] = true;
                    dr2[2] = "ddd";
                    dr2.SetParentRow(dr1);
                    this.dataTable1.Rows.Add(dr2);



                    this.treeList1.EndUpdate();