2011-07-30 165 views
1

我必须使用JQuery执行验证过程。我有两个文本框用户名和密码,两个按钮是登录和提交。我如何点击按钮点击验证消息而不是提交按钮

如果我点击提交按钮,那么它会自动启动验证,以及我必须在登录按钮单击时实现的此功能。

那么我怎么能实现按钮点击自动验证?

为什么我想这样:

  1. 使用设的JQuery它发送到与用户名和在该时间期间,我将显示处理 密码对服务器的请求....
  2. 然后,它将通过数据库验证提供的值,并返回 成功或失败,然后我将显示成功或失败。

这里是代码片段:

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> 
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> 
@Html.ValidationSummary(true, "Login was unsuccessful. Please correct the errors and try again.") 
@using (Html.BeginForm(null, null, FormMethod.Get, new { id = "Form1", name = "Form1" })) 
{ 
    <table> 
     <tr> 
      <td> 
       User Name 
      </td> 
      <td>@Html.TextBoxFor(u => u.UserName, new { id = "txtUser" }) @Html.ValidationMessageFor(u => u.UserName) 
      </td> 
     </tr> 
     <tr> 
      <td> 
       Password 
      </td> 
      <td>@Html.TextBoxFor(u => u.Password, new { id = "txtPassword" }) @Html.ValidationMessageFor(u => u.Password) 
      </td> 
     </tr> 
     <tr> 
      <td> 
      </td> 
      <td> 
       <input type="button" value="Login" onclick="checkAuthentication();" /> 
       <input type="submit" value="Submit" /> 
      </td> 
     </tr> 
     <tr> 
      <td colspan="2"> 
       <div id="dvStatus" class="loginMessageStatus"> 
       </div> 
      </td> 
     </tr> 
    </table> 
} 
<script language="javascript" type="text/javascript"> 
    function getUserCredentials() { 
     var user = jQuery('#txtUserName').val(); 
     var pass = jQuery('#txtPassword').val(); 
     return { UserName: user, Password: pass }; 
    } 
    function clearUserCredentials() { 
     jQuery('#txtUserName').val(""); 
     jQuery('#txtPassword').val(""); 
     jQuery('#txtUserName').focus(); 
    } 
    function checkAuthentication() { 
      jQuery('#dvStatus').html("<div class='requestProcess'></div><div class='requestMessage'>Please wait...</div>") 
      var postData = getUserCredentials(); 
      var ajaxResponse = $.ajax({ 
       type: "post", 
       url: '@Url.Action("Index", "Login")', 
       dataType: 'json', 
       contentType: "application/json; charset=utf-8", 
       data: JSON.stringify(postData), 
       success: function (result) { 
        var res = jQuery.parseJSON(result); 
        if (res.Success == true) { 
         jQuery('#dvStatus').html("<div class='requestSuccess'></div><div class='requestMessage'>Your are successfully logged in. Redirecting...</div>") 
         jQuery.doTimeout(100, redirectToPage); 
        } 
        else { 
         jQuery('#dvStatus').html("<div class='requestFailed'></div><div class='requestMessage'>Error: " + res.Message + ". <a href='javascript:void(0)' onclick='clearUserCredentials()'>Try Again</a></div>") 
        } 
       } 
      }); 
    } 
    function redirectToPage() { 
     href = '@Url.Action("Index", "TabMaster")'; 
     window.location.href = href; 
    } 

注: -

  1. 验证完全与工作Submit按钮
  2. 验证过程与登录按钮完全正常工作(只是我必须整合验证与登录按钮
+0

它看起来像代码会工作,你找控制器上的代码?我不确定你在找什么? – Steve

+0

没有必要在问题标题中加入[[解决]]。只要接受你自己的答案(如果可以的话),这将在主页上标记问题,以便每个人都可以看到它的状态。 – ChrisF

+0

好评,不幸的是它会给我留言**“你可以在2天内接受你自己的答案”**所以决定保留至少两天解决方案,然后我会将其提交给正确答案。 – imdadhusen

回答

0

我已经解决了这一个: 我只用提交按钮

<input id="btnLogin" type="submit" value="Login" /> 

以下是更新后的代码

<script language="javascript" type="text/javascript"> 
    $(document).ready(function() { 
     //$.preloadCssImages(); 
     $("#btnLogin").click(function() { 
      if ($("#Form1").valid() == true) { 
       checkAuthentication(); 
       return false; 
      } 
     }); 
    }); 
    function getUserCredentials() { 
     var user = jQuery('#txtUserName').val(); 
     var pass = jQuery('#txtPassword').val(); 
     return { UserName: user, Password: pass }; 
    } 
    function clearUserCredentials() { 
     jQuery('#txtUserName').val(""); 
     jQuery('#txtPassword').val(""); 
     jQuery('#txtUserName').focus(); 
    } 
    function checkAuthentication() { 
     jQuery('#dvStatus').html("<div class='requestProcess'></div><div class='requestMessage'>Please wait...</div>") 
     var postData = getUserCredentials(); 
     var ajaxResponse = $.ajax({ 
      type: "post", 
      url: '@Url.Action("Index", "Login")', 
      dataType: 'json', 
      contentType: "application/json; charset=utf-8", 
      data: JSON.stringify(postData), 
      success: function (result) { 
       var res = jQuery.parseJSON(result); 
       if (res.Success == true) { 
        jQuery('#dvStatus').html("<div class='requestSuccess'></div><div class='requestMessage'>Your are successfully logged in. Redirecting...</div>") 
        jQuery.doTimeout(100, redirectToPage); 
       } 
       else { 
        jQuery('#dvStatus').html("<div class='requestFailed'></div><div class='requestMessage'>Error: " + res.Message + ". <a href='javascript:void(0)' onclick='clearUserCredentials()'>Try Again</a></div>") 
       } 
      } 
     }); 
    } 
    function redirectToPage() { 
     href = '@Url.Action("Index", "TabMaster")'; 
     window.location.href = href; 
    } 
</script> 
4

你可以使用用下面的事件处理程序的提交按钮的onclick做验证:

的标识符添加到按钮:

<input id="SubmitButton" type="submit" value="Submit" /> 

的JavaScript:

$(document).ready(function(){ 
    $("#SubmitButton").click(function(){ 
     return checkAuthentication(); 
    }); 
}); 

更改验证方法以返回是否失败:

function checkAuthentication() { 
    var _user = jQuery.trim(jQuery('#txtUserName').val()); 
    var _pass = jQuery.trim(jQuery('#txtPassword').val()); 
    if (_user.length == 0 || _pass.length == 0) { 
     jQuery('#dvStatus').html("<div class='requestFailed'></div><div class='requestMessage'>User Name and Password are required!</div>") 
     return false; 
    } 
    else { 
     jQuery('#dvStatus').html("<div class='requestProcess'></div><div class='requestMessage'>Please wait...</div>") 
     var postData = getUserCredentials(); 
     var ajaxResponse = $.ajax({ 
      type: "post", 
      url: '@Url.Action("Index", "Login")', 
      dataType: 'json', 
      contentType: "application/json; charset=utf-8", 
      data: JSON.stringify(postData), 
      success: function (result) { 
       var res = jQuery.parseJSON(result); 
       if (res.Success == true) { 
        jQuery('#dvStatus').html("<div class='requestSuccess'></div><div class='requestMessage'>Your are successfully logged in. Redirecting...</div>") 
        jQuery.doTimeout(100, redirectToPage); 
       } 
       else { 
        jQuery('#dvStatus').html("<div class='requestFailed'></div><div class='requestMessage'>Error: " + res.Message + ". <a href='javascript:void(0)' onclick='clearUserCredentials()'>Try Again</a></div>") 
       } 
      } 
     }); 
     return true; 
    } 
} 

如果验证失败,则应该停止提交。

+0

除了使用onclick事件处理程序之外,您打算如何检查验证?还是使用检查验证方法,因为您可以确保该字段中存在值并停止提交该方式? – Steve