問題描述

我使用以下代碼塊，并在 using 塊中添加了更多代碼:

I use the following code block with some more code inside the using block:

using (System.Drawing.Bitmap tempImg =
       (System.Drawing.Bitmap)tempObj.GetData(System.Windows.Forms.DataFormats.Bitmap))
{
    // ...
    tempImg.Save("..\..\testdata\tempImg.bmp", ImageFormat.Bmp);                            
    // ...
}

但我仍然收到錯誤:

GDI+ 出現一般錯誤

A Generic Error occured at GDI+

只有在我做了一些與 using 塊內的代碼無關的操作之后.在其他時候，這很有效.tempImg.bmp 也是一個臨時文件，所以我刪除了 using 塊本身中的 tempImg.bmp.

only after I make some action which is not related to the code inside the using block. In other times this works well. Also the tempImg.bmp is a temporary file, so I delete the tempImg.bmp within the using block itself.

由于 tempImg 在 using 里面并且它被處理了，我認為應該解決鎖定問題.

Since the tempImg is inside the using and this it's disposed, I think the locking problem should be solved.

有人可以讓我知道這段代碼中的錯誤是什么嗎?

Can someone please let me know what is the mistake in this code?

System.Drawing.Image 到 System.Drawing.Bitmap 作為 tempImg 的類型.

System.Drawing.Image to System.Drawing.Bitmap as the type of tempImg.

我已經確定只有在創建 SaveFileDialog 并且用戶單擊保存"后才會收到此錯誤.

I have identified I get this error only after SaveFileDialog is created and user clicks on 'Save'.

推薦答案

我終于可以找到我的代碼有什么問題了，我想在這里提一下，因為我認為它可能對某人有用....

Finally I could find what was wrong in my code and would like to mention it here as I think it may be useful to someone....

因為我在 tempImg.Save 中給出了一個相對路徑，在用戶點擊 SaveFileDialog 中的Save"后，tempImg.Save 的實際路徑變為:

As I have given a relative path in tempImg.Save, and after the user clicks 'Save' in SaveFileDialog, the actual path for tempImg.Save become :

SaveFileDialog指定的路徑+相對路徑

Path specified by SaveFileDialog + the relative path

自動.

因此，如果路徑不存在，則會發生此錯誤.

Thus if the path does not exist, this error occurs.

謝謝大家的回答.

這篇關于使用 SaveFileDialog 后，在 Bitmap.Save() 的 GDI+ 處發生一般錯誤的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！