C#

private System.Windows.Forms.OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.RestoreDirectory = true;
openFileDialog1.FileName = "";
openFileDialog1.Filter = "Graphic Interchange Format (*.gif)|*.gif|" +
"JPEG File Interchange Format (*.jpg;*.jpeg)|*.jpg;*.jpeg";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
string filename = openFileDialog1.FileName.Substring(openFileDialog1.FileName.LastIndexOf("\\") + 1);
File.Copy(openFileDialog1.FileName, Application.StartupPath + "\\Temp\\" + filename, true);
string fname = Application.StartupPath + "\\Temp\\" + filename;
if(File.Exists(fname))
WhiteBoard1.iSelected = fname;

FileInfo info = new FileInfo(WhiteBoard1.iSelected);
long filesize = info.Length;
if(filesize>0)
{

WhiteBoard1.strConfid = strConfid;
WhiteBoard1.LoadImage();
}
}

In whiteboard class

public void LoadImage()
{
try
{
Graphics grphs = CreateGraphics();

if(File.Exists(iSelected))
{
Image img1 = Image.FromFile(iSelected);
pict.Image=img1;
}
}
catch(OutOfMemoryException)
{

MessageBox.Show(msg.ToString());

}
}