Get number of rows in a SQL Server table in VB.NET

Question

There are 10 rows in primary_student_table.

When I execute the following code, the result was -1.

Dim count As Int16
con.Open()
query =          


        

Answer 1

The solution is to replace

count = cmd.ExecuteNonQuery

with

count = cmd.ExecuteScalar 

Like Robert Beaubien said in his comments