下载到CSV一个支持Ajax网页 [英] Downloading to CSV on an ajaxified page

问题描述

我有一个asp / vb.net的Web应用程序，并与该网站的其他部分保持一致，我使用AJAX和我的控制按钮，提高从ASCX事件。客户端点击下载按钮已经被用来处理帐户权限。

I have an asp/vb.net web app, and for consistency with the rest of the site, I am using AJAX and my control buttons raise events from an ascx. Client Click on the download button is already being used to handle account permissions.

我下载到CSV功能使用的Response.Write有一次我写的AJAX输出停止，虽然code仍是起火。

My download to CSV function uses response.write and once I wrote the AJAX the output stopped, though the code still fires.

目前我正在写另一个未ajaxed，空白ASPX做的Response.Write它正在以一个新的标签/窗口，通过启动脚本我的控制按钮寄存器打开。

Currently I am writing another un-ajaxed, blank aspx to do the response.write It is being opened in a new tab/window via a startup script my control button registers.

必须有一个更好的策略。有什么想法？

There has to be a better strategy. Any thoughts?

推荐答案

我不太明白你所说的一切，但是当我在过去所做的那样下载来自AJAX控件，我不得不设置下载按钮作为一个完整的回发的控制。您可以从ASPX / ASCX做到这一点，或者你可以以编程方式做到这一点是这样的：

I didn't quite understand everything you said, but when I've done downloads from AJAX controls in the past, I've had to set the download button as a full postback control. You can do this from the aspx/ascx, or you can do it programmatically like this:

        // The export button needs to do a full postback, regardless of whether we're in an
        // AJAX UpdatePanel.
        var updatePanel = GetParentUpdatePanel();
        if (updatePanel != null)
        {
            var scriptManager = ScriptManager.GetCurrent(Page);
            if (scriptManager != null)
            {
                scriptManager.RegisterPostBackControl(exportButton);
            }
        }

...

    [CanBeNull]
    private UpdatePanel GetParentUpdatePanel()
    {
        Control parent = Parent;
        while (parent != null)
        {
            if (parent is UpdatePanel)
            {
                return (UpdatePanel) parent;
            }
            parent = parent.Parent;
        }
        return null;
    }

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