How to delete a picture???

[CrazyDragon6384]

hi guys, I have a picBox and a list of pictures. These pictures are displayed in ordered by 2 button ( previous and next ) in the picBox. When clicking buttonDelete, I want to delete the picture which is being displayed in picBox at present and then,another pic is displayed in picBox. But,if any pictures were displayed in the past, it couldn't be deleted. (error: ... because it is being used by another process.) F1 - help me :). thanks !!! -- modified at 13:53 Monday 27th February, 2006

[mav northwind]

Hi! How are you trying to delete the image displayed in the PictureBox? To get an empty PictureBox you can simply assign null to the Image property. Regards, mav -- Black holes are the places where god divided by 0...

[CrazyDragon6384]

I only want to delete the picture displaying on PictureBox,and then the pictureBox will display next( or previous) picture in my list Picture. :) -- modified at 21:26 Monday 27th February, 2006

[mav northwind]

Still not sure what you really want. Are you trying to delete the file the picture has been loaded from or something else? Please be more clear. And if you try something already and "it does not work", then the exact error message you get is essential for us to help you. Regards, mav -- Black holes are the places where god divided by 0...

[CrazyDragon6384]

yes, i'm trying to delete the picture file has been loaded into PictureBox.:) I think the picture that has been loaded into PictureBox is saved into a "temp" memory or something else,isn't it?:((

[mav northwind]

Ok, now that we know what your problem is, we can help you... :) You have to make sure the image file isn't being used any more. The most probable cause is that the image that has been assigned to the PictureBox hasn't been disposed of yet. First, you'll have to make sure you don't let any old references hanging around when you load an image into your PictureBox. For example, when setting an image to display you could write

if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();
pictureBox1.Image = null;
}
pictureBox1.Image = newImageToShow;

That way, only the image currently shown in the PictureBox is used. Before you can delete the file, you'll also have to remove any references, for example:

private void buttonDelete_Pressed(object sender, EventArgs e)
{
pictureBox1.Image.Dispose();
pictureBox1.Image = null;
File.Delete(pathToCurrentImage);
}

Regards, mav -- Black holes are the places where god divided by 0...

[CrazyDragon6384]

oh, pictureBox1.Image.Dispose(); :) thanks ! Then,can i ask you about form size? I have an user control added into a form. I used the following code in both Form_load() and Form_SizeChanged but the usc size wasn't changed: uscImage_NEW.UserControl1 usc=new uscImage_NEW.UserControl1(); private void Form1_SizeChanged(object sender, System.EventArgs e) { usc.Left=0; usc.Top=0; usc.Width=this.Width; usc.Height=this.Height; } how to solve this problem?

[mav northwind]

Why don't you just anchor or dock the UC? Regards, mav -- Black holes are the places where god divided by 0...

[CrazyDragon6384]

I did with another objects such as one button, one lable or anything else in another project... its size was changed. In usc project, i tried but the usc size was unchanged.