dlg.CheckFileExists = true;
using (dlg = new OpenFileDialog())
{
Or you can validate as below
if(!string.NullOrEmpty(dlg.FileName) && File.Exist(dlg.FileName)
{
pictureEdit1.Image = new Bitmap(dlg.FileName);
}
full code:
using (dlg = new OpenFileDialog())
{
dlg.CheckFileExists = true;
dlg.Title = "Open Image";
dlg.Filter = "All Files|*.*";
if (dlg.ShowDialog() == DialogResult.OK)
{
if(!string.NullOrEmpty(dlg.FileName) && File.Exist(dlg.FileName)
{
pictureEdit1.Image = new Bitmap(dlg.FileName);
}
}
}