保存图片时出错GDI+一般性

[king19840811]

FileInfo fileInfo = new FileInfo(this.pictureopenFileDialog.FileName);
string szExt = fileInfo.Extension;

//创建一个内存位图
Bitmap bmp = new Bitmap(this.pictureBox.Image.Width, this.pictureBox.Image.Height);

//把pictureBox里面的图象绘制到内存位图上
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(this.pictureBox.Image, 0, 0);
g.Dispose();

//保存内存位图为文件
string szFileName = Application.StartupPath + "\\..\\..\\userpicture\\我的图片" + szExt;
FileInfo fileInfo1 = new FileInfo(szFileName);
if (!fileInfo1.Directory.Exists)
fileInfo1.Directory.Create();
bmp.Save(fileInfo1.Directory.FullName); GDI+ 中发生一般性错误
bmp.Dispose();

详细错误:。+ Length “fileInfo1.Length”引发了“System.IO.FileNotFoundException”类型的异常 long {System.IO.FileNotFoundException}


通过单步已经确定文件夹路径正确。但到了调用save方法时就会出异常。保存不到指定文件夹内。提示如上错误

[cpio]

//创建一个内存位图
Bitmap bmp = new Bitmap(this.pictureBox.Image.Width, this.pictureBox.Image.Height);

//把pictureBox里面的图象绘制到内存位图上
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(this.pictureBox.Image, 0, 0);
g.Dispose();

这一段用不上

[king19840811]

[Quote=引用 3 楼 cpio 的回复:]
//创建一个内存位图
Bitmap bmp = new Bitmap(this.pictureBox.Image.Width, this.pictureBox.Image.Height);

//把pictureBox里面的图象绘制到内存位图上
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(this.pictureBox.Image, 0, 0);
g.Dispose();

这一段用不上
[/Quote]
恩删了果然能行。但是为什么会出现这种错误呢

[孟子E章]

FileNotFoundException

已经说的很明白了

路径不存在或者没有权限

[周公]

确认你要保存的那个文件路径是什么？对应的文件夹是否存在。

[周公]

private void Button5_Click(System.Object sender, System.EventArgs e)
{
    try
    {
        if (image1 != null)
        {
            image1.Save("c:\\myBitmap.bmp");
            Button5.Text = "Saved file.";
        }
    }
    catch(Exception)
    {
        MessageBox.Show("There was a problem saving the file." +
            "Check the file permissions.");
    }

}

[simonezhlx]

调用Image自身的Save 就够了,楼主结帖吧

[cpio]

有这么麻烦吗？


string szFileName = Application.StartupPath + "\\..\\..\\userpicture\\我的图片" + szExt;
FileInfo fileInfo1 = new FileInfo(szFileName);
if (!fileInfo1.Directory.Exists)
fileInfo1.Directory.Create();

this.pictureBox.Image.Save(szFileName);

[zgke]

fileInfo1.Directory.FullName

着是路径 不是文件名

Bitmap.Save(string filename)
是文件名