Question

I want to restrict sinqle qoute in text box through keypress event.

private void PAddress_Text_KeyPress(object sender, KeyPressEventArgs e)
    {
        if(e.KeyChar==''')
        {
            e.Handled=true;
        }
    }

I tried with above code.
But I am getting Empty character literal error in the IDE(Visual Studio IDE).

Answer 1

You need to escape the single quote:

private void PAddress_Text_KeyPress(object sender, KeyPressEventArgs e)
    {
        if(e.KeyChar=='\'')
        {
            e.Handled=true;
        }
    }