WPF SaveFileDialog DefaultExt忽略了吗？ [英] WPF SaveFileDialog DefaultExt ignored?

问题描述

var dlg = new SaveFileDialog();
dlg.FileName = "graph";
dlg.DefaultExt = ".bmp";
dlg.Filter = "PNG|*.png|DOT|*.dot|Windows Bitmap Format|*.bmp|GIF|*.gif|JPEG|*.jpg|PDF|*.pdf|Scalable Vector Graphics|*.svg|Tag Image File Format|*.tiff";

扩展名始终默认为 .png 。如果有 Filter ，似乎 DefaultExt 被忽略了；那么它只是默认为列表中的第一个选项。

The extension always defaults to .png. It seems the DefaultExt is ignored if there is a Filter; then it just defaults to the first option in the list.

有没有一种方法可以强迫它实际上遵守默认扩展名？

Is there a way to force it to actually respect the default ext?

推荐答案

我为时已晚，但是巧合的是，我在查看此问题。

I'm a few years too late, but coincidentally, I found a solution to the problem while looking at the code from this question.

他在那里指定了不带的扩展名。。然后，我查看了 Microsoft文档。在示例中，还指定了 DefaultExt ，而没有。。

There he specified the extension without a .. I then looked into the microsoft documentation. In the example the DefaultExt was also specified without a ..

如果 DefaultExt 用指定。， FileDialog 将自动选择

DefaultExt 应该设置为不带的扩展名。。

意味着在您的示例 dlg.DefaultExt = .bmp; 中，您需要更改。bmp 到 bmp ...

DefaultExt should be set to the extension without a ..
Meaning that in your example dlg.DefaultExt = ".bmp"; you need to change ".bmp" to "bmp"...

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