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Hi ,
I have Master-Child Table scenerion but there is a need to add master table primary id into child table directly using child table field but when i do this getting following exception..
Unable to cast object of type 'Open Access Runtime.Relational.Relational Generic OID' to type 'Telerik.OpenAccess.SPI.dataobjects.PersistenceCapable'.
Plz Guide why its happening?
I have Master-Child Table scenerion but there is a need to add master table primary id into child table directly using child table field but when i do this getting following exception..
Unable to cast object of type 'Open Access Runtime.Relational.Relational Generic OID' to type 'Telerik.OpenAccess.SPI.dataobjects.PersistenceCapable'.
Plz Guide why its happening?
1 Answer, 1 is accepted
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Hello Ratndeep,
In fact you could use the “Presenting 1:n relations with hierarchical RadGrid and OpenAccess” Code Library example which is located here. In order to display the primary key of the master table you should add the following column inside the child table:
Hope that helps.
Regards,
Damyan Bogoev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
In fact you could use the “Presenting 1:n relations with hierarchical RadGrid and OpenAccess” Code Library example which is located here. In order to display the primary key of the master table you should add the following column inside the child table:
<Columns> <telerik:GridBoundColumn DataField="Company.CompanyId" DataType="System.Int32" HeaderText="CompanyId" ReadOnly="True" SortExpression="Company.CompanyId" UniqueName="Company.CompanyId"> </telerik:GridBoundColumn> ... </Columns>Hope that helps.
Regards,
Damyan Bogoev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.