Question

How can i refill a textbox with it’s previous text after the program was stopped using registry.

I read multiple articles like:

Stack OverFlow1

Stack OverFlow2

Code Project1

Code Project2

So far i have nothing because nothing is working out, all i get are errors D:

     public string Read(string KeyName)
     { 
         RegistryKey rk = baseRegistryKey ;
         RegistryKey sk1 = rk.OpenSubKey(subKey);
         if ( sk1 == null )
              return null;
         else
         {
             try 
             {
                  return (string)sk1.GetValue(KeyName.ToUpper());
             }    
             catch (Exception ex)
             {

             }
         }
     }

says that baseRegistryKey and subKey don’t exist. And it says that RegistryKey doesn’t exist. How do i fix?

Answer 1

I’ve had the same problem a couple of days ago, don’t use those sights, they are all bad.

there are several things wrong with your code:

• baseRegistryKey and subKey need to be set to some sort of a parameter.
• if RegisterKey isn’t working than you probably didn’t do using Microsoft.Win32

• The code i used to solve this was:

  public WindowsConsoleForm1();
      try
      {
          InitializeComponent();
          textBox1.Text = Application.UserAppDataRegistry.GetValue("example").ToString();
      }
      catch { }
  

• and then where ever you have ex: textbox1.text = Path.GetDirectoryName(saveFileDialoge1.FileName);, under it you post Application.UserAppDataRegistry.SetValue("example", textbox1.text);