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dotnet compact framework : Out of Memory Exception
Hi,
I want to display the Photos from a Folder in a Picture Box for my windows mobile 5.0 application. User can view the photos by pressing the Next Button. But it is throwing out of memory Exception when he navigates through more than 5 photos. Here is my code. private void ShowPhoto() { PicBxPhoto.Image = null; Bitmap BmpPhoto = null; // sets the path for the Bitmap BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); // Display the selected photo in the picture box PicBxPhoto.Image = BmpPhoto; // free the bitmap after display BmpPhoto.Dispose(); BmpPhoto = null; } } private void BtnNext_Click(object sender, EventArgs e) { if (PhotoList.Length != iSelPhotoIndex + 1) { // Load the next photo in the Photolist iSelPhotoIndex++; string[] photoName = PhotoList[iSelPhotoIndex].Name.Split('.'); // display the corresponding Job No. and Creation time of the photo LblName.Text = photoName[0]; LblDateTime.Text = PhotoList[iSelPhotoIndex].CreationTime.ToString(); // display the photo in picture box ShowPhoto(); LblName.Refresh(); LblDateTime.Refresh(); } } Can someone please tell me why this small code is throwing Out of Memory Exception? Thanks, Murthy
Just for an expirement (I've just had a really quick look) try it
without // free the bitmap after display BmpPhoto.Dispose(); BmpPhoto = null; [quoted text, click to view] On Apr 29, 11:18 am, Murthy <Mur...@discussions.microsoft.com> wrote: > Hi, > I want to display the Photos from a Folder in a Picture Box for my windows > mobile 5.0 application. > User can view the photos by pressing the Next Button. > > But it is throwing out of memory Exception when he navigates through more > than 5 photos. > > Here is my code. > > private void ShowPhoto() > { > PicBxPhoto.Image = null; > Bitmap BmpPhoto = null; > // sets the path for the Bitmap > BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); > // Display the selected photo in the picture box > PicBxPhoto.Image = BmpPhoto; > // free the bitmap after display > BmpPhoto.Dispose(); > BmpPhoto = null; > } > } > > private void BtnNext_Click(object sender, EventArgs e) > { > > if (PhotoList.Length != iSelPhotoIndex + 1) > { > // Load the next photo in the Photolist > iSelPhotoIndex++; > string[] photoName = > PhotoList[iSelPhotoIndex].Name.Split('.'); > // display the corresponding Job No. and Creation time of > the photo > LblName.Text = photoName[0]; > LblDateTime.Text = > PhotoList[iSelPhotoIndex].CreationTime.ToString(); > // display the photo in picture box > ShowPhoto(); > LblName.Refresh(); > LblDateTime.Refresh(); > > } > } > > Can someone please tell me why this small code is throwing Out of Memory > Exception? > > Thanks, > Murthy
I tried with out
// free the bitmap after display BmpPhoto.Dispose(); BmpPhoto = null; I added this code trying to avoid the Exception, but it did not work. The only variable i am using on clicking Next is the Bitmap BmpPhoto variable. I am assigning the new photo image to this variable. And this is throwing the OOM Exception on clicking some 4 or 5 times. Can someone tell me what is the problem. Thanks, Murthy [quoted text, click to view] "Richard Jones" wrote:
> Just for an expirement (I've just had a really quick look) try it > without > > // free the bitmap after display > BmpPhoto.Dispose(); > BmpPhoto = null; > > > > On Apr 29, 11:18 am, Murthy <Mur...@discussions.microsoft.com> wrote: > > Hi, > > I want to display the Photos from a Folder in a Picture Box for my windows > > mobile 5.0 application. > > User can view the photos by pressing the Next Button. > > > > But it is throwing out of memory Exception when he navigates through more > > than 5 photos. > > > > Here is my code. > > > > private void ShowPhoto() > > { > > PicBxPhoto.Image = null; > > Bitmap BmpPhoto = null; > > // sets the path for the Bitmap > > BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); > > // Display the selected photo in the picture box > > PicBxPhoto.Image = BmpPhoto; > > // free the bitmap after display > > BmpPhoto.Dispose(); > > BmpPhoto = null; > > } > > } > > > > private void BtnNext_Click(object sender, EventArgs e) > > { > > > > if (PhotoList.Length != iSelPhotoIndex + 1) > > { > > // Load the next photo in the Photolist > > iSelPhotoIndex++; > > string[] photoName = > > PhotoList[iSelPhotoIndex].Name.Split('.'); > > // display the corresponding Job No. and Creation time of > > the photo > > LblName.Text = photoName[0]; > > LblDateTime.Text = > > PhotoList[iSelPhotoIndex].CreationTime.ToString(); > > // display the photo in picture box > > ShowPhoto(); > > LblName.Refresh(); > > LblDateTime.Refresh(); > > > > } > > } > > > > Can someone please tell me why this small code is throwing Out of Memory > > Exception? > > > > Thanks, > > Murthy > >
I am already making the BmpPhoto Null.
I am only using the BmpPhoto object.... Is that the reason. Does .NET CF 2.0 have any issues? Thanks, Murthy [quoted text, click to view] "Adam" wrote:
> Dnia Sun, 29 Apr 2007 03:18:01 -0700, Murthy napisał(a): > > > Hi, > > I want to display the Photos from a Folder in a Picture Box for my windows > [cut] > > Try this. > > > Bitmap BmpPhoto = null; //1 > > private void ShowPhoto() > { > PicBxPhoto.Image = null; > //Bitmap BmpPhoto = null; //1 > // sets the path for the Bitmap > BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); > // Display the selected photo in the picture box > PicBxPhoto.Image = BmpPhoto; > // free the bitmap after display > BmpPhoto.Dispose(); > BmpPhoto = null; > } > } > > private void BtnNext_Click(object sender, EventArgs e) > { > > if (PhotoList.Length != iSelPhotoIndex + 1) > { > // Load the next photo in the Photolist > iSelPhotoIndex++; > string[] photoName = > PhotoList[iSelPhotoIndex].Name.Split('.'); > // display the corresponding Job No. and Creation time of > //the photo > LblName.Text = photoName[0]; > LblDateTime.Text = > PhotoList[iSelPhotoIndex].CreationTime.ToString(); > // display the photo in picture box > ShowPhoto(); > LblName.Refresh(); > LblDateTime.Refresh(); > } > }
Dnia Sun, 29 Apr 2007 03:18:01 -0700, Murthy napisa³(a):
[quoted text, click to view] > Hi, [cut]> I want to display the Photos from a Folder in a Picture Box for my windows Try this. Bitmap BmpPhoto = null; //1 private void ShowPhoto() { PicBxPhoto.Image = null; //Bitmap BmpPhoto = null; //1 // sets the path for the Bitmap BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); // Display the selected photo in the picture box PicBxPhoto.Image = BmpPhoto; // free the bitmap after display BmpPhoto.Dispose(); BmpPhoto = null; } } private void BtnNext_Click(object sender, EventArgs e) { if (PhotoList.Length != iSelPhotoIndex + 1) { // Load the next photo in the Photolist iSelPhotoIndex++; string[] photoName = PhotoList[iSelPhotoIndex].Name.Split('.'); // display the corresponding Job No. and Creation time of //the photo LblName.Text = photoName[0]; LblDateTime.Text = PhotoList[iSelPhotoIndex].CreationTime.ToString(); // display the photo in picture box ShowPhoto(); LblName.Refresh(); LblDateTime.Refresh(); }
[quoted text, click to view]
> private void ShowPhoto() > { //Try adding this..... if (PicBxPhoto.Image != null) PicBxPhoto.Image.Dispose(); [quoted text, click to view] > PicBxPhoto.Image = null; > BmpPhoto = new Bitmap(PhotoList[iSelPhotoIndex].FullName); > // Display the selected photo in the picture box > PicBxPhoto.Image = BmpPhoto; > // free the bitmap after display > BmpPhoto.Dispose(); > BmpPhoto = null; > } > }
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