Set default folder location and then give it an option to select path from other form

Question

So what original program I wrote was display pdf file list on comboBox from c:\temp location. But then, I wanted to give user an option to change folder so I created another form called Form2. This Form2 only opens when user press button from Form1 and it closes when user hit save button in Form2. So, I wrote code in Form2. btnSDS opens filepath and displays the path on textBox. How do I make Form1 to get folder location from Form2?

Process

1. user starts program and form 1 opens and grabs pdf file name from default folder.

2. user wants to change default folder so he clicks admin button from form 1 and it opens form 2 which is admin form.

3. user changes default folder setting of folder 1 from folder 2 and closes folder 2.

4. default folder setting changes in folder 1.

5. when user opens folder 2 again, default folder setting remains in textBox in folder 2.

   // Form2    
   private void btnSDS_Click(object sender, EventArgs e)
   {
       var folderBrowserDialog1 = new FolderBrowserDialog();
   
       // Show the FolderBrowserDialog.
       DialogResult result = folderBrowserDialog1.ShowDialog();
       if (result == DialogResult.OK)
       {
           string folderName = folderBrowserDialog1.SelectedPath;
           textBoxSDSLocation.Text = folderName;
       }
   }
   
   // Form1
       private void Form1_Load(object sender, EventArgs e)
       {            
           DirectoryInfo test = new DirectoryInfo(@"c:\temp"); //Assuming Test is your Folder
           FileInfo[] Files = test.GetFiles("*.pdf"); //Getting Text files
   
           comboSDS.DataSource = Files;
           comboSDS.DisplayMember = "Name";
       }
   
   
   private void comboSDS_SelectedIndexChanged(object sender, EventArgs e)
   {
       //axAcroPDF2.LoadFile(@"C:\temp\" + comboSDS.Text);
       //axAcroPDF2.src = @"C:\temp\" + comboSDS.Text;
       axAcroPDF2.LoadFile(@"Form2.textBoxSDSLocation.Text" + comboSDS.Text);
       axAcroPDF2.src = @"Form2.textBoxSDSLocation.Text" + comboSDS.Text;
       axSetting();
   }
   

Answer 1

Actually you need to design a dialog form.

There is a predefined dialog for choosing a Folder in Windows Form project; It's called FolderBrowserDialog this is a sample code for that:

privatevoid BrowseFolderButton_Click(object sender, EventArgs e) {  
    FolderBrowserDialog folderDlg = newFolderBrowserDialog();  
    folderDlg.ShowNewFolderButton = true;  
    // Show the FolderBrowserDialog.  
    DialogResult result = folderDlg.ShowDialog();  
    if (result == DialogResult.OK) {  
        textBox1.Text = folderDlg.SelectedPath;  
        Environment.SpecialFolder root = folderDlg.RootFolder;  
    }  
}  

You can Set Default path using this code:

folderDlg .SelectedPath = //myFolder;

If you didn't want to use this default. you can build your own Dialog. In Form2:

public partial class Form2:Form
{

  public string SelectedPath {get; set;}

  private SelectPath_Click(object sender, EventArgs e)
  {
      // if path is a valid path {

      SelectedPath = txtBoxPath.text;
      this.DialogResult = DialogResult.OK;
      this.Close();

     // } else { CloseForm or Display an Error or ... }  
  } 
}

this is pretty clear that i added a Button to the second form. you may want to choose another way.

you can use your codes like FolderBrowserDialog (SampleCode):

Form2 FolderDialog = new Form2(); 
if (FolderDialog.ShowDialog() == DialogResult.OK)
{
   /// Set New Path 
   Foo.Text = FolderDialog.SelectedPath;
} 
else 
{ 
  // User Didn't selected a Valid path or he closed your form without response.
}