Question

I have an entity called Samples. Inside that I have many fields, one of them is a ProjectLocation drop down list.

Now I use this code to insert a new instance of type Sample in the CRM through WCF.

Entity sample = new Entity("new_sample");
sample.Attributes["name"]= "Ahmed";

This works but when I want to enter the ProjectLocation I don’t have any idea how should it be accomplished.

This doesn’t work.

Entity projectLoc = service.Retrieve("projectlocation", (new guid here), columnset)
sample.Attributes["new_projectlocation1"] = projectLoc

What can be done?

Answer 1

You need to change your code to return an EntityReference, here is the updated code:

Entity projectLoc=service.Retrieve("projectlocation",(new guid here),columnset) //retrieves a correct projectloc. 
sample.Attributes["new_projectlocation1"]=projectLoc.ToEntityReference(); //Now it'll work