Error on Linq

Question

Hi,

I am using linq , its giving me error while creating query using LINQ ( download the snap short for reference )

Note: I have to list ,want to make join and apply group to get data accordingly

Thanks

Answer 1

Hi, @Mohammad Qasim ,

If possible, please share the complete code of your project as well as the list data so that I could help you better.

For your first screenshot, you could try to remove the Cast method after list.GetItems(query). Check if it work for you.

Remove this:

For the 2nd, you could try this:

 select new {itmdossier, itmCountry } into t1  
 group t1 by new { resDosParent= Convert.ToInt32(t1.itmdossier[_DossierParentID]) } into g  

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