Khnemu Khnemu - 2 months ago 7x
ASP.NET (C#) Question

Non static method requires a target

private PMS_USERS currUser;
private bool validateUserName()
dbContext = new PmsEntities();
var validateUser = dbContext.PMS_USERS.Where(p=> p.LOGICALREF != currUser.LOGICALREF).Where(p=> p.USERNAME == currUser.USERNAME);
return !validateUser.Any();

I got an error while validating on my new user register form.

table has no record(null). I also tried checking for null control(s) for currUser.

What am I missing?

Error is :

Non static method requires a target


You should first test if currUser is null or not and your dbContext too.

if (currUser == null) return false;
if (dbContext == null) throw new Exception ("The dbContext has not been set");

Secondly, you can simplify your query like yhat :

 var validateUser = dbContext.PMS_USERS.Where(p=> p.LOGICALREF != currUser.LOGICALREF &&  p.USERNAME == currUser.USERNAME);

And then change the return statement to :

return (validateUser.FirstOrDefault() != null);

You can alternativelly use SingleOrDefault statement insead of FirstOrDefault, if you want to be sure there is only one user corresponding to your criteria.