Question

我想使用customvalidator控件来处理我的所有验证，但我无法弄清楚如何在代码隐藏中为不同的检查设置错误消息。这可能吗？

Answer 1

您可以根据验证逻辑在OnServerValidate方法中设置错误消息：

protected void customValidator1_Validate(object sender, ServerValidateEventArgs e)
{
    if (e.Value.Length < 5)
    {
        e.IsValid = true;
    }
    else
    {
        customValidator1.ErrorMessage = "Length must be less than 5.";
        e.IsValid = false;
    }
}

Answer 2

对于One Control，您可以这样做..

<!-- In Designer Page  -->
<asp:CustomValidator runat="server" id="cusCustom" controltovalidate="txtCustom" 
  onservervalidate="cusCustom_ServerValidate" 
  errormessage="The text must be exactly 8 characters long!" />
<br /><br />

/* In Code Behind*/
protected void cusCustom_ServerValidate(object sender, ServerValidateEventArgs e)
{
    if(e.Value.Length == 8)
        e.IsValid = true;
    else
        e.IsValid = false;
}

为customvalidator设置errormessage？

2 个答案: