如何使用 saveFileDialog 在 C# 中保存图像？
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How to use saveFileDialog for saving images in C#?
提问by user1097772
Possible Duplicate:
Issue while saving image using savefiledialog
I use windows forms in C#. How should I use saveFileDialog? I have picturebox and on the picture box there is an image and I want to save it. Loaded image is bmp. I want to save it as one of 4 formats: bmp, jpeg, png, tiff. I read some some notes on MDSN and also tryed it but I probably do something wrong. So I better ask how should be it write? How should be wrote method private void saveFileDialog1_FileOk(object sender, CancelEventArgs e)and how should look like property saveFileDialog.Filter? Thanks
我在 C# 中使用 windows 窗体。我应该如何使用 saveFileDialog？我有图片框，图片框上有一张图片，我想保存它。加载的图像是 bmp。我想将它保存为 4 种格式之一：bmp、jpeg、png、tiff。我读了一些关于 MDSN 的笔记，也尝试过，但我可能做错了什么。所以我最好问一下它应该怎么写？应该如何编写方法private void saveFileDialog1_FileOk(object sender, CancelEventArgs e)以及属性saveFileDialog.Filter应该如何写 ？谢谢
EDIT:
What I've tryed:
Issue while saving image using savefiledialog
编辑：
我尝试过的：
使用 savefiledialog 保存图像时出现问题
EDIT2:
I tryed this filter
EDIT2：
我试过这个过滤器
Filter = bmp (*.bmp)|*.bmp|jpeg (*.jpeg)|*.jpeg|png (*.png)|*.png|tiff (*.tiff)|*.tiff
采纳答案by John Koerner
You can use the SaveFileDialog like this:
您可以像这样使用 SaveFileDialog：
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "Images|*.png;*.bmp;*.jpg";
ImageFormat format = ImageFormat.Png;
if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string ext = System.IO.Path.GetExtension(sfd.FileName);
switch (ext)
{
case ".jpg":
format = ImageFormat.Jpeg;
break;
case ".bmp":
format = ImageFormat.Bmp;
break;
}
pictureBox1.Image.Save(sfd.FileName, format);
}
