Hi Waleed Seada,
I am afraid that the article is a bit outdated. We are aware of that and will make sure it is updated in the next version of the documentation.
Please ignore the screenshot on step 6 and step 7. This content was correct before we introduced the domain services wizard. Now the wizard generates automatically the class mentioned in step 9 and this is exactly the DS.generated.cs
class that you have. You can just continue with the steps of the quickstart, there should not be any further differences.
the Telerik team
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