ClientValidationFunction

ClientValidationFunction

 

<asp:TextBox ID="KeyWords" runat="server" Width="200px"> <asp:CustomValidator id="CustomValidator1"   ControlToValidate="KeyWords" ClientValidationFunction="ClientValidate" Display="None" ValidationGroup="seachers" runat="server"/> 验证脚本:              <script type="text/javascript">               function ClientValidate(source,arguments) //这里arguments可获取TextBox值               {                  if(arguments.Value == "请输入关键词搜索" || arguments.Value == "")                  {                                   alert("请输入关键词");                          arguments.IsValid = false;                                     }                  else                  {                    arguments.IsValid = true;                  }             }            </script>