when u use the follow code on 1.1.it will compile without error.
/**/
/// <summary>
/// Test table relation.
/// </summary>
public
void
Relation_1_1()
...
{ DataTable dtParent = this.CreateDataTable(); dtParent.TableName = "Parent"; DataRelation relations = ds.Relations.Add("Relation", dtParent.Columns["index"], dtParent.Columns["parent_index"], false); this.builder.Append(" Get the data from tree ROOT."); this.GetLayerFromParent(ds, relations); this.PrintDataTable(ds.Tables["parent"]); this.builder.Append(" Get the data from tree CHILDS."); this.GetLayerFromChilds(ds, relations); this.PrintDataTable(ds.Tables["parent"]); this.DebugPrint(this.builder.ToString()); }
while it will run error on 2.0 with "Cannot create a DataRelation if Parent or Child Columns are not in a DataSet.".
if u want to run normally,u can use this cod:
/**/
/// <summary> /// Test table relation. /// </summary>
public
void
Relation_2_0()
...
{ DataTable dtParent = this.CreateDataTable(); dtParent.TableName = "Parent"; DataSet ds = new DataSet(); ds.Tables.Add(dtParent); DataRelation relations = ds.Relations.Add("Relation", ds.Tables["Parent"].Columns["index"], ds.Tables["Parent"].Columns["parent_index"], false); this.builder.Append(" Get the data from tree ROOT."); this.GetLayerFromParent(ds, relations); this.PrintDataTable(ds.Tables["parent"]); this.builder.Append(" Get the data from tree CHILDS."); this.GetLayerFromChilds(ds, relations); this.PrintDataTable(ds.Tables["parent"]); this.DebugPrint(this.builder.ToString()); //this.WriteToTxtFile(this.builder.ToString()); }
what's your idea?
