Textbox 輸入文字 既 Event 輸入 Character 檢查

 
Textbox 輸入文字 既 Event 輸入 Character 檢查
 

   form1.Design.cs 上加上
 
   this.textBox1.KeyUp += new System.Windows.Forms.KeyEventHandler(textBox1_KeyUp);
 
   或
 
   this.textBox1.KeyUp += ( 再按 TAB )
 

 

   form1.cs
 
   private void textBox1_KeyUp(object sender, KeyEventArgs e)
   {
 
      this.label1.Text = this.textBox1.Text;
 
      if(e.KeyCode == Keys.Enter)
      {
         this.label2.Text = "Enter";
      }else{
         this.label2.Text = "";
      }
 
   }