Resolved : A generic error occurred in GDI+ error in C#

Working with Copy image or Resize image. You may get error that “A generic error occurred in GDI+”. I have come across to following two codes.

Code 1 :

public void Resize(string oldFilePath, string newFilePath, OrgFile, NewFile)
{
try
{
OrgFile = Path.Combine(Server.MapPath(oldFilePath), OrgFile);
NewFile = Path.Combine(Server.MapPath(newFilePath), NewFile);

System.Drawing.Image OrgImage = System.Drawing.Image.FromFile(OrgFile);

OrgImage.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipNone);
OrgImage.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipNone);

// Resize with height instead
NewWidth = 300;
NewHeight = 300;

System.Drawing.Image ResizedImage = OrgImage.GetThumbnailImage(NewWidth, NewHeight, null, IntPtr.Zero);

// Clear handle to original file so that we can overwrite it if necessary
OrgImage.Dispose();

// Save resized picture
ResizedImage.Save(NewFile);

}

catch
{
}
}

Possible reasons of coming error in above code is :

  • This error generally caused by providing incorrect save path
  • You don’t have folder “newFilePath” physically and as you haven’t written code for create directory, It will throw an error.
  • You don’t have write permission on “newFilePath” directory.
    1. If you are running in local machine then uncheck readonly permission of this folder from your explorer.
    2. If you have hosted your application then give write permission for IIS user or your hosting account user so that it can save image to that directory.





Code 2 :

public void MyTest()
{

byte[] bt1 = File.ReadAllBytes("img1.jpg");
Stream dtstream= new MemoryStream(bt1);
Bitmap image = new Bitmap(dtstream);
image.Save(@"c:\myimg.jpg");
dtstream.Dispose();

// Now lets use a nice dispose, etc...
Bitmap2 image2;
using (Stream dtstream2= new MemoryStream(bt1))
{
image2 = new Bitmap(dtstream2);
}

image2.Save(@"C:\new folder\myimg2.jpg"); // It will throw the GDI+ exception.
}

First of all above code is created while checking similar error from : http://stackoverflow.com/questions/1053052/a-generic-error-occurred-in-gdi-jpeg-image-to-memorystream





Above code will throw an error because of following reason.

You are disposing the Bitmap and that will close the stream too. Basically once you give the Bitmap constructor a stream, it “owns” the stream and you shouldn’t close it. As the documents for that constructor say:

You must keep the stream open for the lifetime of the Bitmap.

Please comment if you find help from this article.

2 Responses to Resolved : A generic error occurred in GDI+ error in C#

  1. Anonymous says:

    Thanks dear its working

  2. Afzal Khan says:

    Its working fine ….thanks a lost…”Possible reasons of coming error in above code is :”

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