ClientValidationFunction貌似不是这样使用的,其默认的自定义验证函数的参数source就是customvalidator对象,而args指的是一个json对象,其定义为var args = { Value:value, IsValid:true},所以在自定义验证函数里只需source.id/source.errormessage即可得到CustomValidator的相应属性,常规用法如下
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<html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="Button" /> <asp:CustomValidator ID="CustomValidator1" runat="server" ClientValidationFunction="Validate" ControlToValidate="TextBox1" ValidateEmptyText="true" ErrorMessage="不能为空"></asp:CustomValidator></div> </form> </body> <script type="text/javascript"> function Validate(source,args) { //CustomValidator的ID和ErrorMessage window.alert(source.id); window.alert(source.errormessage); if(document.getElementById("TextBox1").value=="") args.IsValid = false; } </script> </html>