code to populate data in data grid from table in sql server

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VB

Hello Everyone

I should get the code to populate table data in grid. later i should also be in position to edit and save. the following code i am using to get data from the table but it is not working

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim myconnection As New SqlConnection("server=THEJASVI-PC\SQLEXPRESS;database=emp;uid=sa;pwd=2x12")
        myconnection.Open()
        ds = New DataSet()
        s = "select * from emp_details"

        Dim da As New SqlDataAdapter(s, myconnection)

        da.Fill(ds, "emp_details")
        dgvEmployeedetails.DataSource = ds.DefaultViewManager


    End Sub

so help me kindly to correct my code