标签:style blog http color io os ar for sp
第一步引入jquery.js
html代码如下
<form name="post" id="post" method="post" action="/Login"> <input type="text" name="username" value="" /> <input type="password" name="password" value="@Model.linkorig" /> <input type="button" value="提交" onclick="Submit()"> </form>
js如下
function Submit() {
var username = $("#username").val();
$.get("/Ajax/CheckName", { name: username },
function (data) {
if (!data.Success) {
alert(data.Msg);
return;
} else {
document.post.submit();
}
}
, "json");
}
后台如下
public JsonResult CheckName(string name)
{
JsonData _jsondata = new JsonData();
JsonResult jsn = new JsonResult();
jsn.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
//检查用户名是否存在代码---省略
//返回json
_jsondata.Success = false;
_jsondata.Msg = "用户名不存在!";
jsn.Data = _jsondata;
return jsn;
}
标签:style blog http color io os ar for sp
原文地址:http://www.cnblogs.com/piaoguo/p/4024891.html