本文介绍了如果javascript验证返回false，则停止服务器端代码执行并专注于该字段的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript">
function Validate()
{
var summary="";
summary+=isvalidUserName()
if (summary!="")
{
alert(summary);
return false;
}
else
{
return true;
}
}
function isvalidUserName()
{
var UserName=document.getElementById('txtUserName');
if(UserName.value!="")
{
var UserNameExpession=/^[0-9a-zA-Z]+$/;
if(UserName.value.match(UserNameExpession))
{
return true;
}
else
{
alert('UserName Should Be Combination of Alphabet and Numbser');
UserName.focus();
return false;
}
}
else
{
alert('User Name Can not be null');
UserName.focus();
return false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td colspan="3">
<center>User Registration Form</center>
</td>
</tr>
<tr>
<td>User Name</td>
<td></td>
<td><asp:TextBox ID="txtUserName" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>Password</td>
<td></td>
<td><asp:TextBox ID="txtPassword" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>Conform Password</td>
<td></td>
<td><asp:TextBox ID="txtConfirmPassword" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>First Name</td>
<td></td>
<td><asp:TextBox ID="txtFirstName" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>Last Name</td>
<td></td>
<td><asp:TextBox ID="txtLastName" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>Address</td>
<td></td>
<td><asp:TextBox ID="txtAddress" runat="server" ></asp:TextBox></td>
</tr>
<%-- <tr>
<td>City</td>
<td></td>
<td><asp:DropDownList ID="ddlCity" runat="server" Width="152px" ></asp:DropDownList></td>
</tr>
<tr>
<td>State</td>
<td></td>
<td><asp:DropDownList ID="ddlState" runat="server" Width="152px" ></asp:DropDownList></td>
</tr>--%>
<tr>
<td>Email</td>
<td></td>
<td><asp:TextBox ID="txtEmail" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td>Mobile Number</td>
<td></td>
<td><asp:TextBox ID="txtMobileNumber" runat="server" ></asp:TextBox></td>
</tr>
<tr>
<td colspan="3">
<center>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClientClick="return Validate()" OnClick="btnSubmit_Click" />
</center>
</td>
</tr>
<tr>
<td colspan="3">
<center>
<asp:Label ID="lblError" runat="server" ></asp:Label>
</center>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>推荐答案
<asp:customvalidator clientvalidationfunction="validatecontrols" forecolor="Red" errormessage="your error message" controltovalidate="txtUserName" runat="server" xmlns:asp="#unknown"></asp:customvalidator>
这篇关于如果javascript验证返回false，则停止服务器端代码执行并专注于该字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！