I am trying to filter my record base on Employee No. like this;

Dim aFind As String
aFind = InputBox("Enter a Employee No.", "Search for Employee No.")
Dim dv As DataView = DataSet11.Employee.DefaultView
dv.RowFilter = "empno='" & aFind & "'"

But it has no reaction and it not working. Kindly teach me the correct syntax of RowFilter?