OpenFileDialog problem

[Anonymous]

Hi everyone,

I am creating an add in to batch insert Revit links to models. 

The first task is to add selected models path to listbox1 as following image: 

and following is my Code: 

  private void bt_AddModel_MouseClick(object sender, MouseEventArgs e)
        {
            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            if (openFileDialog1.ShowDialog()==DialogResult.OK)
            {
                string[] files = openFileDialog1.FileNames;
                foreach(string s in files)
                {
                    listBox1.Items.Add(s);
                }

            }
        }

But the problem is, after selecting all the files and click OK, the Winform add in close as well instead of add the files list into listbox. 

If anyone have experience in this, please help me.

Thank you so much for your help :).

Best Regards,

Cherry Truong

[jeremytammik · Accepted solution]

Inside your Windows form, store the selected files in a list that is accessible via a public member function, e.g., SelectedFiles.

Then, access those files and process them after the form has been confirmed and closed:

  class Command : IExternalCommand
  {
    Result Execute(...)
    {
      FileSelectionForm form = new FileSelectionForm();
      if (form.ShowDialog()==DialogResult.OK)
      {
        string[] files = form.SelectedFiles;
        foreach(string s in files)
        {
          process file
        }
      }
    }
  }

Lots of samples by The Building Coder demonstrate how to display a Windows form prompting a user for input in an external command and process the results afterwards:

https://www.google.com/search?q=ShowDialog&as_sitesearch=thebuildingcoder.typepad.com

Cheers,

Jeremy

[Anonymous]

Dear Jeremy,

Thank you so much for your help. I can fix the problem now :). and finished my add in to batch upgrade families to current version of Revit. 

Best Regards,

Ninh Truong