验证控件的使用六（CustomValidator）

 1 <%@ Page Language="C#" %>
 2 
 3 <script runat="server">
 4 
 5     protected void Button1_Click(Object sender, EventArgs e) {
 6        Label1.Text = "VALID NUMBER!";
 7     }
 8 
 9 </script>
10 
11 <html xmlns="http://www.w3.org/1999/xhtml">
12 <head id="Head1" runat="server">
13     <title>CustomValidator</title>
14 
15     <script type="text/javascript">
16         function validateNumber(oSrc, args) {
17            args.IsValid = (args.Value % 5 == 0);
18         }
19     </script>
20 
21 </head>
22 <body>
23     <form id="form1" runat="server">
24     <div>
25         <p>
26             Number: 
27             <asp:TextBox ID="TextBox1" 
28              Runat="server"></asp:TextBox>
29              &nbsp;
30             <asp:CustomValidator ID="CustomValidator1"       Runat="server" ControlToValidate="TextBox1"         Text="Number must be divisible by 5" 
31              ClientValidationFunction="validateNumber">
32             </asp:CustomValidator>
33         </p>
34         <p>
35             <asp:Button ID="Button1" OnClick="Button1_Click"          Runat="server" Text="Button"></asp:Button>
36         </p>
37         <p>
38             <asp:Label ID="Label1" Runat="server"></asp:Label>
39         </p>
40     </div>
41     </form>
42 </body>
43 </html>

 1 <%@ Page Language="C#" %>
 2 
 3 <script runat="server">
 4 
 5     protected void Button1_Click(Object sender, EventArgs e) {
 6          if (Page.IsValid) {
 7             Label1.Text = "VALID ENTRY!";
 8          }
 9     }
10 
11     void ValidateNumber(object source, ServerValidateEventArgs args)
12     {
13        try 
14        {
15           int num = int.Parse(args.Value);
16           args.IsValid = ((num%5) == 0);
17        }
18        catch(Exception ex)
19        {
20           args.IsValid = false;
21        }
22     }
23 
24 </script>
25 
26 <html xmlns="http://www.w3.org/1999/xhtml" >
27 <head id="Head1" runat="server">
28     <title>CustomValidator</title>
29 </head>
30 <body>
31     <form id="form1" runat="server">
32     <div>
33         <p>
34             Number: 
35             <asp:TextBox ID="TextBox1" 
36              Runat="server"></asp:TextBox>
37              &nbsp;
38             <asp:CustomValidator ID="CustomValidator1" 
39              Runat="server" ControlToValidate="TextBox1" 
40              Text="Number must be divisible by 5" 
41              OnServerValidate="ValidateNumber"></asp:CustomValidator>
42         </p>
43         <p>
44             <asp:Button ID="Button1" OnClick="Button1_Click" 
45              Runat="server" Text="Button"></asp:Button>
46         </p>
47         <p>
48             <asp:Label ID="Label1" Runat="server"></asp:Label>
49         </p>
50     </div>
51     </form>
52 </body>
53 </html>

1 <asp:CustomValidator ID="CustomValidator1" 
2     Runat="server" ControlToValidate="TextBox1" 
3     Text="Number must be divisible by 5"
4     ClientValidationFunction="validateNumber"
5     OnServerValidate="ValidateNumber"></asp:CustomValidator>

posted on 2011-06-14 07:05 .net 流氓阅读(425) 评论(0) 编辑收藏举报