编程狮在线代码实例

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<html>
<body>
​
<form runat="server">
<table border="0" bgcolor="#b0c4de">
&nbsp;&nbsp; <tr valign="top">
&nbsp;&nbsp;&nbsp;&nbsp; <td colspan="4"><h4>Compare two values</h4></td>
&nbsp;&nbsp; </tr> 
&nbsp;&nbsp; <tr valign="top">
&nbsp;&nbsp;&nbsp;&nbsp; <td><asp:TextBox id="txt1" runat="server" /></td>
&nbsp;&nbsp;&nbsp;&nbsp; <td>
&nbsp;&nbsp;&nbsp;&nbsp; <asp:ListBox id="list" rows="2" OnSelectedIndexChanged="check_operator" runat="server">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <asp:ListItem value="Equal" selected>=</asp:ListItem>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <asp:ListItem value="NotEqual"><></asp:ListItem>
&nbsp;&nbsp;&nbsp;&nbsp; </asp:ListBox>
&nbsp;&nbsp;&nbsp;&nbsp; </td>
&nbsp;&nbsp;&nbsp;&nbsp; <td><asp:TextBox id="txt2" runat="server" /></td>
&nbsp;&nbsp;&nbsp;&nbsp; <td><asp:Button Text="Validate" runat="server" /></td>
&nbsp;&nbsp; </tr>
</table>
​
​
<asp:CompareValidator
id="compval" 
Display="dynamic"
ControlToValidate="txt1" 
ControlToCompare="txt2" 
ForeColor="red" 
BackColor="yellow" 
Type="String"
EnableClientScript="false" 
Text="Validation Failed!" 
runat="server" />
</form>
​
</body>
</html>
实例代码
运行结果