1. thomas
   Member

   Hello,
   i'm a beginner with c# and visual studio,

   i don't understand that i get the error 'Error 1 A field initializer cannot reference the non-static field, method, or property 'WpfApplication5.MainWindow.textBox1

   my code:

   public partial class MainWindow : Window
   {
   int getal=Convert.ToInt32(textBox1.text);

   public MainWindow()
   {
   InitializeComponent();
   }

   private void button1_Click(object sender, RoutedEventArgs e)
   {
   if (getal > 1)
   {
   MessageBox.Show("groter dan 1");
   }
   else
   {
   MessageBox.Show("kleiner dan 1");
   }

   }
   }
   }

   Can anyone help me please?

   Posted 7 months ago #

2. Akhos
   Moderator

   Hi Thomas,

   The error speaks for itself: You cannot access non-static methods from the field initialiser.
   In this case, it means that you cannot reference to the text-box since it has not yet been initialised, it's being initialised automatically in the InitializeComponent() method.
   What you could do is declare 'getal' on a global level, and define it in your constructor (after the InitializeComponent() method).

   This would result in the following:

   public partial class MainWindow : Window
   {
   int getal;
   
   public MainWindow()
   {
   InitializeComponent();
   getall = Convert.ToInt32(textBox1.text);
   }
   ......
   }

   I hope this helps.

   Sincerely,
   Akhos

   Posted 7 months ago #

3. thomas
   Member

   Thank you for your help,

   i learned a lot of it

   Posted 7 months ago #

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