Question

I have had a quick look on Google and didn’t pull anything simple up.

I have tried:

textBox5.Clear();

textBox5.Text=("");

textBox5.Text="".ToString();

Answer 1

You could try:

 foreach ( Control ctl in Parent.Controls) {
 if (ctl.GetTyep()== TextBox)
        ctl.text = ""; 
 } 

Also why are you doing

    textbox.Text = (""); //You don't need the parenthesis here
    textbox.Text = "".toString(); //the .toString() is definitly not needed.

If you only want it for a single textbox then:

myTextBox.Text = String.Empty; 

or

 myTextBox.Text = "";