I have a sp that return a complex type (query) and have a output parameter.
create procedure sp @param1 int, … @result string output
…
set @result = ‘Execution error ‘ + + error_message()
…
select *
from tablainquery
where …

I can return the query result doing something like this:

public List sp(int parameter1…, string r)
{
ObjectParameter res = new ObjectParameter(‘result’,typeof(string));
SystobjectResult queryresult = this.ObjectContext.sp(parameter1,…,res);
r = res.value.ToString();
return queryresult.ToList();
}
But I don´t know how get the output parameter from the client because the r param is empty in the return function at client side.
Can you give me a guide to get the output parameter at client side.
Thank you.

thanks Jeff. I am now using TextChanged and PasswordChanged instead.