Update Multiple Rows in DB via Datagrid

[Compkitty]

I am using a dataadapter, stored procedure.. I had it updating correctly, but now it's not... I changed it over from being a dynamic Datagrid to using a DS/DA/Connection thru the design instead of at runtime. But my update will still be at runtime since it uses another Stored Procedure to update the DB...
There are a couple of things it's doing
1. it's updating all the records w/ same value, even thought it's suppose to be diff. I thought it was the Datakey. And I'm not sure about datakeys, because it's the 2nd column in my datagrid, and is a string like (aaa123)

2. I have to push the update button 2x's to get the update to go thru..

Here is my code

 Private Sub BtnOk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnOk.Click
        Dim Dgi As DataGridItem
        Dim MoEnd As String

        For Each Dgi In Me.Dg.Items
            Dim ClientID As String = Convert.ToString(Dg.DataKeys(Dgi.ItemIndex))
            'Dim ClientID As String = Dg.DataKeys(Dgi.ItemIndex).ToString
            Dim ClientValue As String = CType(Dgi.FindControl("HypCliId"), HyperLink).Text
            Dim DueDate As String = CType(Dgi.FindControl("txtDueDate"), TextBox).Text
            Dim RptPriority As String = CType(Dgi.FindControl("txtRptPriority"), TextBox).Text
            MoEnd = Me.TextBox1.Text

            Dim ClientParam As New SqlParameter("@ClientID", SqlDbType.VarChar)
            ClientParam.Direction = ParameterDirection.Input

            Dim MoEndParam As New SqlParameter("@MoEnd", SqlDbType.VarChar, 10)
            MoEndParam.Direction = ParameterDirection.Input

            Dim DueDateParam As New SqlParameter("@DueDate", SqlDbType.VarChar, 10)
            DueDateParam.Direction = ParameterDirection.Input

            Dim PriorityParam As New SqlParameter("@Priority", SqlDbType.VarChar)
            PriorityParam.Direction = ParameterDirection.Input


            Dim DaUpdate As New SqlDataAdapter
            DaUpdate.UpdateCommand = New SqlCommand
            DaUpdate.UpdateCommand.Connection = SqlConn
            DaUpdate.UpdateCommand.CommandText = "Stp_UpdateChecklist"
            DaUpdate.UpdateCommand.CommandType = CommandType.StoredProcedure
            DaUpdate.UpdateCommand.Parameters.Add(ClientParam)
            DaUpdate.UpdateCommand.Parameters("@ClientID").Value = ClientValue
            DaUpdate.UpdateCommand.Parameters.Add(MoEndParam)
            DaUpdate.UpdateCommand.Parameters("@MoEnd").Value = MoEnd
            DaUpdate.UpdateCommand.Parameters.Add(DueDateParam)
            DaUpdate.UpdateCommand.Parameters("@DueDate").Value = "2/23/2005"
            DaUpdate.UpdateCommand.Parameters.Add(PriorityParam)
            DaUpdate.UpdateCommand.Parameters("@Priority").Value = "A"

            SqlConn.Open()
            DaUpdate.UpdateCommand.ExecuteNonQuery()
            SqlConn.Close()

        Next

end sub

ANY HELP WOULD BE HELPFULL THANKS