菜鸟学堂
在线运行
源代码
<!DOCTYPE html> <html> <body> <form runat="server"> Name: <asp:TextBox id="name" runat="server" /> <br> Age: <asp:TextBox id="age" runat="server" /> <br><br> <asp:Button runat="server" Text="Submit" /> <br><br> <asp:RequiredFieldValidator ControlToValidate="name" Text="The name field is required!" runat="server" /> </form> </body> </html>
运行结果
在线运行
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