vb.net - My database connection fails what to do? -


connection string correct checked

    dim connstring string = "data source=abc;initial catalog=testdatabase;integrated security=true"      dim conn new sqlconnection(connectionstring)      try         conn.connectionstring = connstring         conn.open()         if con.state = connectionstate.closed             messagebox.show("connection faild")          end if      catch ex exception         messagebox.show("ok")     end try


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