📄 ch09-02-03.aspx
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<%@ Page ClientTarget="DownLevel" %>
<Html>
<Head>
<Title>Ch09-02-03.aspx RequiredFieldValidator控件</Title>
<Script Language="VB" Runat="Server" >
' 用户单击“Button控件”的事件处理程序
Sub Button1_Click(obj As Object, e As EventArgs)
Dim strA As String
If Page.IsValid Then
strA = "输入的成绩是：" & Text1.Text
Show1.InnerHTML = strA
Else
Show1.InnerHTML = ""
End If
End Sub
</Script>
</Head>
<Body>
<Form Runat="Server">
输入ASP.NET的测试成绩：
<asp:TextBox ID="Text1" Width="100px" Runat="Server" /><BR>
<asp:Button ID="Button1" Text="提交" OnClick="Button1_Click"
Runat="Server" />
<asp:RequiredFieldValidator ID="ReqValid"
ControlToValidate="Text1"
ErrorMessage="必需要输入成绩"
Runat="Server" />
<asp:RangeValidator ID="RangeValid"
ControlToValidate="Text1"
MinimumValue="0" MaximumValue="100"
Type="Integer" Display="Dynamic"
ErrorMessage="必需是介于0到100之间的数字！"
Runat="Server" />
</Form>
<Span ID="Show1" Runat="Server" />
</Body>
</Html>
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