关于如何能改变text的内容

public class fact
    {
        private bool _Clicked;
        public bool clicked
        {
            get { return _Clicked; }
            set
            {
                _Clicked = value; } } private string _GetText;
        public string getText
        {
            get
            {

                if (_Clicked)
                {
                    _GetText = " 回答正确 " ;
                }
                else
                {
                    _GetText = " 回答错误 " ;
                }

                return _GetText;
            }

        }
       
       
    }



 

C# code

    
    
    
    

     
     
     
     
      
     
     
     
     public
     
     
     
      
     
     
     
     partial
     
     
     
      
     
     
     
     class
     
     
     
      Form3 : Form { BindingSource bindingSource1 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      BindingSource(); 
     
     
     
     public
     
     
     
      Form3() { InitializeComponent(); } 
     
     
     
     private
     
     
     
      
     
     
     
     void
     
     
     
      button1_Click(
     
     
     
     object
     
     
     
      sender, EventArgs e) { fact _fact
     
     
     
     =
     
     
     
     new
     
     
     
      fact(); _fact.clicked
     
     
     
     =
     
     
     
     true
     
     
     
     ; bindingSource1.Add(_fact); label1.DataBindings.Add(
     
     
     
     "
     
     
     
     Text
     
     
     
     "
     
     
     
     , bindingSource1, 
     
     
     
     "
     
     
     
     getText
     
     
     
     "
     
     
     
     ); } }