c# - Loading, saving, and then loading an image again throws "A generic error occurred in GDI+" -


I remember that for a different code a while ago, but it's back , with a retaliation, but with some new code I can not seem to know.
This is definitely normal , to make sure!

Target

I am trying to create a form that allows the user:

  1. Select an image.
  2. Save (which closes the form), and saves the image to byte [] in the database.
  3. Open the form (which byte [] ) loads the image.
  4. Allow them to save again.
  5. Allow them to open the form again, display the picture (again).

A very standard load / save situation.

The problem

Everything works well for loading and saving SQL Server. The problem I am experiencing is to do it again and again with a byte [] and save along with it, though I am using the same settings. Take a look at this code , Which I have mixed to display the problem: 

  static zero main (string [] arg) {// start image initial image = (bitmap) bitmapfof file (@ 'D : \ Picture.jpg "); // save in a memory stream and bytes r Receive the initial image bites = SaveimageTobbets; // Reload this saved image; Bitmap bitloaded image = Load imageflowbits; // save in bytes again; throws "GDI + has a common error. Var secondary imagebits = save image tags (personalized byte);} Private static byte [] Seymite notebooks (bitmap image) {byte [] imageBytes; (MemoryStream imagestream = new memories Use Rim ()) (Fig. Save (Cvistrym, Image. Roformet); // "There was a general error in GDI +." Threw saved second imageBytes = imageStream.ToArray (); } Returns image bits; } Private static bitmap load imagefolbets (byte [] bytes) {(memorystream imagestream = new memorystream (bytes)) {bitmap image = (bitmap) bitmap. Firststream; Return image; }}

Error A typical error occurred in GDI. is thrown because the image is saved for MemoryStream the time period I checked the time before saving before RawFormat by inspecting the value Second was not done before: Save 

  1: Save {b96b3cae-0728- 11d3-9d7b-0000f81ef32e} 2: {b96b3cae-0728-11d3-9d7b-0000f81ef32e}

Values ​​are the same, so this can not be a problem in losing image format information.

Can anyone help debug this problem? The code sample I used has been tested with JPEG, and

I had the same belief that I had the same recent problem you used to build your MemoryStream around We have to leave the statement that will be left. Creating bitmaps refers to the stream that it had created. You can read it about it. 

  Private static bitmap load imagefolbets (byte [] bytes) {var imageStream = new memorystream (bytes)) var image = (bitmap) bitmap. Formstream (imagestream); Return image; }

Comments

Post a Comment

Popular posts from this blog

sql - dynamically varied number of conditions in the 'where' statement using LINQ -

I am using my first project LINQ (in mvc), so maybe there's something very simple that I remember. However, a day of searching and experimenting does not work, so it works. I am trying to write a LINQ query (Linux to SQL) in which in many cases where the statement is different from an OR or an AND. We do not know how many conditions are going in the query till runtime. This search is for filter control, where the user can choose multiple criteria for filtering. Select from table where table.col = 1 or table.col = 2 or table.col = 7 .... 'Other number of conditions Before I just create the SQL query as a string, while looping over all the situations. However, it seems that there should be a good way to do this in LINQ. I tried to use Expression trees, but they had a second thought for this moment on my head, where the lambda function was to be executed inside the statement such as: values ​​for matchingRows = matchingRows for each value Where (function (row) row.c...
Read more

asp.net mvc - Dynamically Generated Ajax.BeginForm -

I have a problem with ASP.NET MVC Ajax forms. I generate many Ajax form in a table such as: & Lt; Input type = "submit" name = "activity" value = "add activity" / & gt; & Lt;%}% & gt; & Lt; / TD & gt; & Lt; / TR & gt; & Lt;%}% & gt; So far so good. When I post one of those forms, it gives a partial view in a div, and in this new partial view a new Ajax Beginnform (which is not in Genesis form) This second Ajax Beginnorf is exactly like the ones I got on the table, but when I post it, I do not get the "Ajax Post", but a normal post that sends me to a new page, I do not know whether the two Ajax forms What is the reason for the difference between, why is it the "dynamically generated" Ajax form behaves like a normal HTML form? By the way, I know that I can do it in different ways using javascript, but I would like to understand whether it can only be done using MVC helplars and Ajax lib...
Read more

Debug on symbian -

I am using trk for phone debug This works well for the Holorld project But when I start the project in phone debug mode 1) the load failed 2) TrkProtocolPlugin: to target the specified file Failure (please verify If any body understands what problem I am experiencing, then this problem helps me Pre-release If the application has the privileges assigned (with the appropriate certificate) itemprop = "text" > In your case, I will check: / li> If there is no conflict of application ID with any other application of device If there are problematic commands in the installation package (for example copy copy for non-accessible directories)
Read more