how to check that glg.Filename is empty or not

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I want to check tat dlg.Filname have file name available or not?? how to check this i am doing this but it is showing..

C#

using (dlg = new OpenFileDialog())
{
   dlg.Title = "Open Image";
   dlg.Filter = "All Files|*.*";

   if (dlg.ShowDialog() == DialogResult.OK)
   {
      //PictureBox Picture = new PictureBox();
      pictureEdit1.Image = new Bitmap(dlg.FileName);
   }
}

on button i want to get picture path and doing this but it is showing me error when no file is no pic upload object refrence is not set to an instance of an object

C#

if ( dlg.CheckFileExists)
           objProduct.ProductPicture = dlg.FileName.ToString();

Posted 18-May-14 23:43pm

Muhamad Faizan Khan

Updated 19-May-14 22:57pm

v5

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DamithSL · Answer 1 · 2014-05-18T23:47:00

C#

dlg.CheckFileExists = true;
using (dlg = new OpenFileDialog())
{

Or you can validate as below

C#

if(!string.NullOrEmpty(dlg.FileName) && File.Exist(dlg.FileName)
{
   pictureEdit1.Image = new Bitmap(dlg.FileName);
}

full code:

C#

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);
        }
   }
}

OriginalGriff · Answer 2 · 2014-05-18T23:50:00

Solution 2

Unless you have changed the CheckFileExists[^] property value - and you haven't - the user can't press OK without a valid, existing file: so the FileName property will always contain a valid existing file name andcx you don't need to check.

Posted 18-May-14 23:50pm

OriginalGriff