将部分视图加载到 JQuery 对话框中的缓存问题

2022-01-15 00:00:00 dialog jquery javascript jquery-ui asp.net-mvc

想象一个带有编辑"链接的简单用户列表.单击编辑"会打开一个对话框，其中包含所选用户的详细信息.详细信息"弹出窗口是部分视图.

Imagine a simple list of users with "edit" links. Clicking "Edit" opens up a dialog box with details for the selected user. The "Details" popup is a partial view.

在 JQuery 对话框窗口中打开部分视图时，我遇到了缓存部分视图的问题.

I have an issue with Partial Views being cached when opening them in JQuery dialog windows.

我的部分视图(注意 OutputCache 属性是我试图解决缓存问题的事情之一):

My partial view( Notice the OutputCache attribute as one of the things I tried to solve the caching issue):

    [HttpGet]
    [OutputCache(NoStore = true, Duration = 0, VaryByParam = "*")]
    public PartialViewResult EditUser(int id)
    {
     var userList = userRepository.GetByRole(id);

     return PartialView("EditUser",userList);
    }

上面的 PartialView 是从以下 Javascript 函数请求和加载的:

The PartialView above is requested and loaded from the following Javascript function:

function editUserOpen(id) {

    $.ajaxSetup({  ///// Another thing I tried to solve caching
        cache: false
    });

    var url = "/User/PartialViewResult/" + id;

    $('#user-wrap').empty().load(url, function () {

    $("#dialog-edit-user").dialog({
        title: "Edit User",
        autoOpen: false,
        height: 300,
        width: 500,
        modal: true
    });

        $('#dialog-edit-user').dialog("open");
    });
}

如上所示，dialog-edit-user"(连同dialog-add-user"和dialog-delete-user")位于 DOM 中的user-wrap"Div 内.

As shown above "dialog-edit-user" ( along with "dialog-add-user" and "dialog-delete-user" ) are located inside of the "user-wrap" Div in the DOM.

功能上一切正常，但是当我打开一个对话框时，取消并尝试为其他用户打开对话框，直到页面被刷新，对话框将始终包含最初显示的对话框中的信息.我认为这是一个缓存问题，但我没有办法解决它.

Functionally everything works but when I open a dialog, cancel and then try opening dialogs for other users, until the page is refreshed the dialogs will always contain info from the initially displayed dialog. I figured its a caching issue but I ran out of ways to solve it.

如果可能的话，我想远离 $.ajax({ cache:false; }).html(content).在我看来，它比 .load() 慢很多.

I would like to stay away from $.ajax({ cache:false; }).html(content) if possible. It seems to me that it's a lot slower than .load().

推荐答案

这是我发现的.

每次使用 .dialog() 初始化 JQuery 对话框时，如上所示，成为弹出窗口的 div 被从 DOM 中取出并移动到页面底部.Dialog Div 不能是另一个 Div 的子级.在我的例子中是:

Everytime JQuery dialog is initialized with .dialog() as shown above the div that becomes a pop up is being taken out of the DOM and moved the the bottom of the page. Dialog Div cannot be a child of another Div. In my example it was:

<div id="user-wrap">
  <div id="dialog-edit-user">  /// <--- Jquery dialog div

  </div>
</div>

对话框不能被其他 div 包裹.

Dialog cannot be wrapped in other divs.

第一次单击后，当显示对话框时，JQuery 只是开始在页面底部累积重复的 Div.$("#").dialog('open') 每次让程序员/用户认为这是一个缓存问题时，都会打开累积重复项的最顶层 DIV.

After the first click, when the dialog is displayed JQuery simply starts accumulating duplicate Divs at the bottom of the page. $("#").dialog('open') opens the very top DIV of accumulated duplicated every time making the programmer/user think it's a caching issue.

因此解决方案是在 .dialog({close: } 事件的页面底部删除由 JQuery 创建的 div，或者使用 JQuery 将其移回父包装器 DIV.append()/.appendTo() 函数.

So the solution is to either remove the div created by JQuery from the bottom of the page on .dialog({close: } event or to move it back up to the parent wrapper DIV with JQuery .append() / .appendTo() functions.

希望这对遇到类似问题的下一个程序员有所帮助.

Hope this helps to a next programmer who runs into similar issue.

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