Disable delete button on RichTextBox WF

Question

I am trying to disable people from deleting a textbox in a richtextbox. The project is using windows form.

Here is the code I have:

    private void         


        

Answer 1

Instead Of KeyPress event use KeyDown In RichText Box.

try this to prevent from deleting text in RichText Box

private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyValue == 46)
                e.Handled = true;
        }

If you want to disallow both delete and backspace You Can Change KeyDown Event as follows

private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyValue == 8 || e.KeyValue == 46)
                e.Handled = true;
        }