If you insist of creating your graph programmatically, the easiest way is to design your graph in a VisualStudio designer and then look at the automatically generated .designer.cs file and see how to report items are initialized. Again, designing your report programmatically is not error-prone and is more time-consuming than just using the designer.
The links we sent to you are pointing to our documentation, which is always updated to the last released version of Telerik Reporting. However, the described approaches are applicable to earlier versions of our product, including Q1 2014 that you are working with.
Hope it helps.
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