下载文件时出现“System.PlatformNotSupportedException”类型的异常。 [英] Exception of type 'System.PlatformNotSupportedException' while downloading file.

问题描述

亲爱的所有



我正在为下载图像文件编写代码。

Dear All

I am writing code for download image file.

Response.AppendHeader();
Response.ContentType=type;
Respone.WriteFile(file);
Response.End();

这适用于.gif，.jpeg，.png，但它给'tiff'带来了问题。我已经尝试了ContentTypeimage / tif&image / tiff但它给出了错误标题

This is working for .gif,.jpeg,.png but it is giving problem for 'tiff'. I have try ContentType "image/tif" &"image/tiff" but it is giving error Headers

'Page.Response.Headers' threw an exception of type System.PlatformNotSupportedException'	System.Collections.Specialized.NameValueCollection {System.PlatformNotSupportedException}.

我也尝试将应用程序池更改为已集成，但仍无法正常工作。

我正在使用Classic 2.0 app pool& iis 7.0。

我有临时解决方案。 当我删除更新面板时，它工作正常。

你能告诉我为什么会这样吗？



谢谢

I have also tried for changing app pool to integrated but still it is not working.
I am using Classic 2.0 app pool & iis 7.0.
I have got temporary solution. As I remove update panel it works fine.
Can u tell me why this is happening?

Thanks

推荐答案

看看这个：



http://forums.iis.net/t/1150672.aspx [ ^ ]

Solution1。

无需删除更新面板，只需要适用于该控件的PostBackTrigger。

解决方案2.

将应用程序池从经典更改为集成。

Solution1.
No need to remove update panel only you will have to apply as PostBackTrigger for that control.
Solution2.
change application pool as from classic to integrated.

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