please resizing image code

Question

1.00/5 (1 vote)

See more:

I'm making project To save many small images into one large image and I used this code :

C#

private void Openbutton_Click(object sender, EventArgs e)
        {
            folderBrowserDialog1.ShowDialog();
            string selected = folderBrowserDialog1.SelectedPath;
            string[] imagefilelist = Directory.GetFiles(selected);

            int wid = 0, hei = 0, med = 0;
            foreach (string imagefile in imagefilelist)
            {
                if (Image.FromFile(imagefile) != null)
                {
                    Image.FromFile(imagefile).Dispose();
                }
                PictureBox eachpicturebox = new PictureBox();
                imgs = eachpicturebox;
                eachpicturebox.Size = new Size(241, 155);
                eachpicturebox.Location = new Point(wid * 241 + med, hei);
                eachpicturebox.Image = Image.FromFile(imagefile);
                wid++;
                if (wid == 3)
                {
                    wid = 0;
                    hei += 155;
                }
                panel1.Controls.Add(eachpicturebox);
            }
        }

This code creates picture box for each image and all picture boxes placed in the panel1.
The problem here is: I want to be able to change the size of small images.

Can anyone help me.

Posted 10-Oct-11 8:03am

anonymous.legend

Updated 10-Oct-11 8:11am

André Kraak

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2011-10-10T08:20:00

First, don't use individual pictureboxes - it is not very efficient.
Secondly, why are you doing this:

C#

if (Image.FromFile(imagefile) != null)
{
    Image.FromFile(imagefile).Dispose();
}

The if condition reads a file, converts it to a new Image, compares it and then throws away the reference. If it isn't null - which will always be true - it reads it again, creates another new Image and immediately Disposes it.
What do you think that does that is reasonable?

Instead of using PictureBoxes, handle the Paint event for the Panel, and draw the images onto the supplied Graphics object. This will allow you much better control over the placement and size of the images, as well as being considerably quicker.

#realJSOP · Answer 2 · 2011-10-10T09:06:00

Create a user control that loads the images and displays them. Then you can just give the control a directory name that contains the files, and let it do the work for you behind the scense, thus uncluttering your form code.

C#

public class MyControl : Control
{
    private List<image> images = new List<image>();

    public MyControl(){}

    public MyControl(string folder)
    {
        FileInfo[] files = Diretory.GetFiles("*.jpg");
        foreach (FileInfo info in files)
        {
            Image img = Image.FromFile(info.FullName);
            if (img != null)
            {
                images.Add(img);
            }
        }
    }
}</image></image>

At this point, you can do anything you want with the images.

please resizing image code

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0