各位學長學姊好~
如果我想做人性化的帳號輸入
比如說
有四個textbox
第一個MaxLength="3"
第二個MaxLength="2"
第三個MaxLength="5"
第四個MaxLength="1"
當第一個輸入完3個數後就自動跳到第二個textbox
第二個輸入完2個數後就自動跳到第三個textbox
第三個輸入完5個數後就自動跳到第四個textbox

搜尋了一些網站 寫了下面這些
但是
Me.TextBox2.Focus()動作沒有做到耶
請問是也甚麼地方要改 或者怎麼寫比較好呢??
麻煩各位解答了!!!!
謝謝><

(使用vs2008 vb.net)

<asp:TextBox ID="TextBox1" runat="server" MaxLength="3" AutoPostBack ="true" OnTextChanged = "TextBox1_Change" ></asp:TextBox>

<asp:TextBox ID="TextBox2" runat="server" MaxLength="2" AutoPostBack ="true" OnTextChanged = "TextBox2_Change" ></asp:TextBox>

<asp:TextBox ID="TextBox3" runat="server" MaxLength="5" AutoPostBack ="true" OnTextChanged = "TextBox3_Change" ></asp:TextBox>

<asp:TextBox ID="TextBox4" runat="server" MaxLength="1" AutoPostBack ="true" OnTextChanged = "TextBox4_Change" ></asp:TextBox>

Protected Sub TextBox1_Change(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If Len(TextBox1.Text) = 3 Then
Me.TextBox2.Focus()
End If
End Sub

Protected Sub TextBox2_Change(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
If Len(TextBox2.Text) = 2 Then
Me.TextBox3.Focus()
End If
End Sub

Protected Sub TextBox3_Change(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox3.TextChanged
If Len(TextBox3.Text) = 5 Then
Me.TextBox4.Focus()
End If
End Sub