how to display the image in Picturebox using Previous, Next buttons?

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I have windows application in c#. It contain one Picture box and two buttons(button names are Next, Previous). i need to display 10 images in picture box when i clicked the buttons.
for eg, i clicked the previous button it will display previous image in picture box, and i click the next button it display the next image.

i have tried the following codings,

C#

private void Next_Click(object sender, EventArgs e)
       {
          int  i = 0;
           string filePath = "C:/Users/Pictures/2013-06-10";
           string[] files = Directory.GetFiles(filePath);
           i++;
           if (i >= 11)
           {
               pictureBox1.Image = null;
           }
           else
           {
               pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
               pictureBox1.Image = Image.FromFile(files[i]);
           }
       }

       private void Previous_Click(object sender, EventArgs e)
       {
           int j = 10;
           string filePath = "C:/Users/Pictures/2013-06-10";
           string[] files = Directory.GetFiles(filePath);
           j--;
           if (j <= 0 || j == 10)
           {
               pictureBox1.Image = null;
           }
           else
           {
               pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
               pictureBox1.Image = Image.FromFile(files[j]);
           }
       }

Posted 11-Jul-13 22:20pm

Rajan from Thiruvananthapuram

Updated 11-Jul-13 22:21pm

v2

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Comments

berrymaria 12-Jul-13 5:24am

Try to see this link:
http://stackoverflow.com/questions/4645704/c-sharp-display-images-randomly-and-one-after-another

2 solutions

Solution 2

try to add one jquery plugin, i think its an easy way

Posted 12-Jul-13 1:19am

Manuel john

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lukeer · Accepted Answer · 2013-07-12T00:02:00

The problem here is that you create an index variable i on every button click. It gets initialized on every button click with the very same value. What you need is a member variable that belongs to the object that contains the methods Next_Click() and Previous_Click. Something like this

C#

System.Windows.Form Form1
{
    private int _pictureIndex = 0;

    // Next line can be set in Designer. No need to code it.
    //pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
    
    private void Next_Click(object sender, EventArgs e)
    {
        string filePath = "C:/Users/Pictures/2013-06-10";
        string[] files = Directory.GetFiles(filePath);
        _pictureIndex++;
        if (_pictureIndex > files.Length)
        {
            _pictureIndex = 0;
        }
        pictureBox1.Image = Image.FromFile(files[_pictureIndex]);
    }
}

Of course, the hard-coded file path is still ugly. But I guess, that's for demonstration purposes only.