Question

我想将已加载的图片保存到某个目录，但它会一直返回无效的导演。这是我正在使用的代码

if (OpenCdb != null)
{
    string pics = Path.GetDirectoryName(OpenCdb.FileName);
    // Save card image
    ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\" + cardid + ".jpg", 177, 254);
    //Save card thumbnail
    ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\thumbnail\\" + cardid + ".jpg", 44, 64);
}

我测试了pics字符串并返回了正确的目录，所以我不知道还能做什么。我也可以发布imageresizer功能代码，如果你也需要我，但它是很多代码，这就是为什么我没有在问题中添加它。

编辑继承人错误的图片 enter image description here

    public static void SaveImage(Image image, string savedName, int width = 0, int height = 0)
    {
        Image originalImage = image;
        string filePath = AppDomain.CurrentDomain.BaseDirectory + savedName;

        if (width > 0 && height > 0)
        {
            Image.GetThumbnailImageAbort myCallback =
            new Image.GetThumbnailImageAbort(ThumbnailCallback);
            Image imageToSave = originalImage.GetThumbnailImage
                (width, height, myCallback, IntPtr.Zero);
            imageToSave.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg);
        }
        else
        {
            originalImage.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg);
        }
    }

Answer 1

您尝试保存的路径是这样构成的：

AppDomain.CurrentDomain.BaseDirectory + Path.GetDirectoryName(OpenCdb.FileName) + "\\pics\\" + cardid + ".jpg"

结果看起来很像“C：\ blahC：\ meh \ pics \ something.jpg”

Answer 2

我猜你的一个或多个字符串有问题。

使用Path.Combine，例如Path.Combine(pics, "pics", cardid + ".jpg")和Path.Combine(AppDomain.CurrentDomain.BaseDirectory, savedName)

另外，我会在使用之前将整个路径组合起来，如：

string fullPath = Path.Combine(pics, "pics", cardid + ".jpg")

<强>更新

如下所述，路径混淆了.. 你设置这样的照片：

string pics = Path.GetDirectoryName(OpenCdb.FileName);

这将导致pics = C:\something\something

然后你这样打电话给SaveImage：

SaveImage(CardImg.Image, pics + "\\pics\\" + cardid + ".jpg", 177, 254);

在该方法中，您现在设置pics = savedName，然后完整路径为：

string filePath = AppDomain.CurrentDomain.BaseDirectory + savedName;

哪个是C：\ somethingelse \ C：\ something \ something

Answer 3

哇我再次创造了这种情况并找回了解决方案

解决方案就在这里

第1步：（不需要，但更好的预防方式）

添加Directory.CreateDirectory（Path.GetDirectoryName（filePath））;保存图像如下

  public static void SaveImage(Image image, string savedName, int width = 0, int height = 0)
    {
        Image originalImage = image;
        string filePath = AppDomain.CurrentDomain.BaseDirectory + savedName;
        Directory.CreateDirectory(Path.GetDirectoryName(filePath));
.
.
. The Rest code
.
.
.
.
.
.
.
}

第2步：

if (OpenCdb != null)
{
    string pics ="";// no need of this (this  is the problem) Path.GetDirectoryName(OpenCdb.FileName);

Path.GetDirectoryName（OpenCdb.FileName）;将返回类似C：***的东西你再次与SaveImage中的AppDomain.CurrentDomain.BaseDirectory组合这是问题

    // Save card image
    ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\" + cardid + ".jpg", 177, 254);
    //Save card thumbnail
    ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\thumbnail\\" + cardid + ".jpg", 44, 64);
}

Answer 4

永远不要让我在这里工作的每个人都是我最终使用的代码

    public static void SaveImage(Image image, string savedName, int width = 0, int height = 0)
    {
        Image originalImage = image;
        string filePath = savedName;

        if (width > 0 && height > 0)
        {
            Image.GetThumbnailImageAbort myCallback =
            new Image.GetThumbnailImageAbort(ThumbnailCallback);
            Image imageToSave = originalImage.GetThumbnailImage
                (width, height, myCallback, IntPtr.Zero);
            imageToSave.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg);
        }
        else
        {
            originalImage.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg);
        }
    }

...

 public void SaveImage(string cardid)
    {
        if (LoadedImage != "")
        {
            if (OpenCdb != null)
            {
                string pics = Path.GetDirectoryName(OpenCdb.FileName);
                // Save card image
                ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\" + cardid + ".jpg", 177, 254);
                //Save card thumbnail
                ImageResizer.SaveImage(CardImg.Image, pics + "\\pics\\thumbnail\\" + cardid + ".jpg", 44, 64);
            }
            else
            {
                string pics = AppDomain.CurrentDomain.BaseDirectory;
                // Save card image
                ImageResizer.SaveImage(CardImg.Image,
                        pics + "pics\\" + cardid + ".jpg", 177, 254);
                //Save card thumbnail
                ImageResizer.SaveImage(CardImg.Image,
                       pics + "pics\\thumbnail\\" + cardid + ".jpg", 44, 64);
            }
        }
    }

在保存c＃时返回无效目录

4 个答案: