使用QueryExpression选择一个实体？ C＃Dynamics CRM Online 2015年

Question

In dynamics CRM online 2015 we have installed custom extensions for our company however we can't pull data for it, our code:

QueryExpression qe = new QueryExpression();
qe.EntityName = "tsg_project";
qe.ColumnSet = new ColumnSet();
qe.ColumnSet.Columns.Add("name");
EntityCollection retrieved = serviceA.RetrieveMultiple(qe);

This returns null, when in dynamics it's:

However for 'account' this works fine.

How could I get this to work?

Answer 1

your query will throw an error because a custom entity can't contain an attribute called name but probably is tsg_name .

so your code needs to be:

QueryExpression qe = new QueryExpression("tsg_project");
qe.ColumnSet = new ColumnSet("tsg_name");
EntityCollection retrieved = serviceA.RetrieveMultiple(qe);