【求助VB.NET】输入文本，动态返回数据库结果

Private Sub Ttj_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Ttj.TextChanged
        If Me.Ttj.Text.Length > 0 Then
            Me.Llew.Items.Clear()
            Me.Llew.View = View.LargeIcon
            Me.Llew.LargeImageList = Me.ImageList1
            Dim mytable As DataTable = mydataset("select 用户 from data where 用户 like '%" & Me.Ttj.Text & "%' or 软件请求码 like '%" & Me.Ttj.Text & "%'  order by 用户").Tables(0)
            For i As Integer = 0 To mytable.Rows.Count - 1
                Dim myLVW As New ListViewItem("" & mytable.Rows(i).Item(0).ToString)
                myLVW.SubItems.Add(mytable.Rows(i).Item(0).ToString)
                myLVW.ImageKey = Me.ImageList1.Images.Keys(0)
                Me.Llew.Items.Add(myLVW)
            Next
        End If
    End Sub