i = 0 To ds.Tables(0).Rows.Count - 1中i要定义成什么

Dim ds As DataSet
        Dim i As
        ds.ReadXml(Server.MapPath("data\\会员.xml"))
        For i = 0 To ds.Tables(0).Rows.Count - 1
            If (ds.Tables(0).Rows(i).Item(0) = TextBox1.Text) Then
                Session("帐号") = Me.TextBox1.Text
                TextBox1.Visible = False
                TextBox2.Visible = False
            End If
        Next


 中的i要定义成什么

integer
其实你不写也没关系,VB会自动帮你选的

谢啦