Question

伙伴关系。 Net MVC 2 申请我想做以下工作:在处理一个职位时,我要:

Redirect the user to other view in the current browser window
Open a new window showing other info (other view)

That can be done easily setting the target="_blank" attribute in the form element and adding the following jQuery script:

$(function () {
    $("form").submit(function () {
        window.location = "...";
    });
});

行动手退还的观点将在新窗口上公布。

但是,让它成为一个小trick子:

If there are no service layer errors when executing the action, then do the above.
If there s any service layer error when executing the action, then do not open the new window and the view returned by the action must be shown in the same window where the form was in the first place.

例如:Imagine说,服务层产生一种pdf文件,向用户显示,如果所有东西都ok,并且必须在新的窗口中显示pdf。

[HttpPost]
public ActionResult SomeAction(FormCollection form)
{
    var serviceMethodParams = ... // convertion from the form data somehow

    MemoryStream pdfDocument = null;

    if (!serviceLayer.DoSomething(serviceMethodParams, out pdfDocument))
    {
        // Something went wrong, do not redirect, do not open new window
        // Return the same view where error should be displayed
        return View(...);
    }

    // The service method run ok, this must be shown in a new window and the origal window must be redirected somewhere else
    return File(pdfDocument.ToArray(), "application/pdf");
}

Note that the original solution work fine when the service returns true, but if the service returns false the view showing the errors is shown in a new window and the original window is redirected somewhere else.

Answer 1

在这种情况下,更好的选择是,简单地将一份专门针对该文件的《URL》归还给用户,并在成功从你的行动方法中收回《URL》,然后打开一条提到《URL》的新窗口。在错误方面,你可以显示错误或一些错误——基本上,数据被并入Json的回报值。

在“雅克斯”呼吁之外,我最可接受的模式是重新提出看法,然后附上一些开端 j,以打开新窗口,指出“URL”。

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