C# Form.AcceptButton属性代码示例

public void CreateMyForm()
{
   // Create a new instance of the form.
   Form form1 = new Form();
   // Create two buttons to use as the accept and cancel buttons.
   Button button1 = new Button ();
   Button button2 = new Button ();
  
   // Set the text of button1 to "OK".
   button1.Text = "OK";
   // Set the position of the button on the form.
   button1.Location = new Point (10, 10);
   // Set the text of button2 to "Cancel".
   button2.Text = "Cancel";
   // Set the position of the button based on the location of button1.
   button2.Location
      = new Point (button1.Left, button1.Height + button1.Top + 10);
   // Set the caption bar text of the form.   
   form1.Text = "My Dialog Box";
   // Display a help button on the form.
   form1.HelpButton = true;

   // Define the border style of the form to a dialog box.
   form1.FormBorderStyle = FormBorderStyle.FixedDialog;
   // Set the MaximizeBox to false to remove the maximize box.
   form1.MaximizeBox = false;
   // Set the MinimizeBox to false to remove the minimize box.
   form1.MinimizeBox = false;
   // Set the accept button of the form to button1.
   form1.AcceptButton = button1;
   // Set the cancel button of the form to button2.
   form1.CancelButton = button2;
   // Set the start position of the form to the center of the screen.
   form1.StartPosition = FormStartPosition.CenterScreen;
   
   // Add button1 to the form.
   form1.Controls.Add(button1);
   // Add button2 to the form.
   form1.Controls.Add(button2);
   
   // Display the form as a modal dialog box.
   form1.ShowDialog();
}

//引入命名空间
using System;
using System.Drawing;
using System.Windows.Forms;
public class EnterPrice : Form {
  private Button enter = new Button();
  private Label answer = new Label();
  private TextBox text = new TextBox( );

  public EnterPrice( ) {
    enter.Text = "Enter Price";
    text.Text = "";
    answer.Text = "";

    Size = new Size(300,200);
    answer.Size = new Size(200,50);

    enter.Location = new Point(30 + enter.Width, 30);
    text.Location = new Point (40 + enter.Width + enter.Width, 30);
    answer.Location = new Point(20, 60);

    AcceptButton = enter;

    Controls.Add(text);
    Controls.Add(answer);
    Controls.Add(enter);

    enter.Click += new EventHandler(Enter_Click);
  }

  protected void Enter_Click(Object sender, EventArgs e) {
    try{
    Console.WriteLine(Double.Parse(text.Text));
    }catch(Exception){
    }
    text.Text = "";
    text.Focus();
  }
  static void Main() {
    Application.Run(new EnterPrice());
  }
}