Question

I’ve got these Methods:

    private void button_Click(object sender, EventArgs e)
    {
          //Changes the Text in the RichBox, EXAMPLE:
          richtTextBox.Text = "Now Changed and calling Method richTextBox_TextChanged";
    }

And,

 private void richTextBox_TextChanged(object sender, EventArgs e)
 {
         //Wants something like that
         if(called from button_click)
         {
           //DO SOMETHING
         }
         else
         {
           //DO SOMETHING
         }
 }

How can I handle this, to know if it was called from the Button_click?
Do I have to use the object sender to get informations? But how?

Hope u guys can help me

Answer 1

Just use a flag:

private bool _isInButtonClick;

private void button_Click(object sender, EventArgs e)
{
      try
      {
          _isInButtonClick = true;
          //Changes the Text in the RichBox, EXAMPLE:
          richtTextBox.Text = "Now Changed and calling Method richTextBox_TextChanged";
      }
      finally
      {
          _isInButtonClick = false;
      }
}


 private void richTextBox_TextChanged(object sender, EventArgs e)
 {
         if(_isInButtonClick)
         {
           //DO SOMETHING
         }
         else
         {
           //DO SOMETHING
         }
 }