Hi,

i'm updating some sources from .NET 1.0 to .NET 2.0 and some very strange
things happen, for example:

DataSet1.Tables["Customers"].ChildRelations[0].ChildColumns[0] =
DataSet1.Tables["Orders"].Columns["test"];

In .NET 1.0 "DataSet1.Tables["Customers"].ChildRelations[0].ChildColumns[0]"
is always "Columns["test"]".
But now, nothing happens, the ChildColumns (on
the left side) are always stays the same, no Exception nothing.


You can reproduce this bug by your own, try this:

DataSet DataSet1 = new DataSet();
DataTable customers = new DataTable("Customers");
customers.Columns.Add("CustID");
DataSet1.Tables.Add(customers);

DataTable orders = new DataTable("Orders");
orders.Columns.Add("CustID");
orders.Columns.Add("test");
DataSet1.Tables.Add(orders);

// Get the DataColumn objects from two DataTable objects
// in a DataSet. Code to get the DataSet not shown here.
DataColumn parentColumn =
    DataSet1.Tables["Customers"].Columns["CustID"];
DataColumn childColumn =
    DataSet1.Tables["Orders"].Columns["CustID"];
// Create DataRelation.
DataRelation relCustOrder;
relCustOrder = new DataRelation("CustomersOrders", parentColumn,
childColumn, true);
// Add the relation to the DataSet.
DataSet1.Relations.Add(relCustOrder);

DataSet1.Tables["Customers"].ChildRelations[0].ChildColumns[0] =
DataSet1.Tables["Orders"].Columns["test"];

If you try this under .NET 1.0
DataSet1.Tables["Customers"].ChildRelations[0].ChildColumns[0] = "CustID"

In .NET 2.0 DataSet1.Tables["Customers"].ChildRelations[0].ChildColumns[0] =
"test"

Thanks

Marco

AMD/Dual-Core/64 bit: influence on compiled files? - Clients?
Object identity
Access Violation in dotnet application
Does the .NET framework always call the API?
Threading hesitates in 2005