How to: Create a Group of Radio Buttons from a String Array
This example programmatically creates a group of Windows Forms RadioButton controls and sets their Text properties to values from an array of strings.
Compiling the Code
This example requires:
· A Windows Form with a Button control named button1. Set the Click event handler of button1 to button1_Click.
Example
private void button1_Click(object sender, System.EventArgs e) { string[] stringArray = new string[3]; stringArray[0] = "Yes"; stringArray[1] = "No"; stringArray[2] = "Maybe"; System.Windows.Forms.RadioButton[] radioButtons = new System.Windows.Forms.RadioButton[3]; for (int i = 0; i < 3; ++i) { radioButtons[i] = new RadioButton(); radioButtons[i].Text = stringArray[i]; radioButtons[i].Location = new System.Drawing.Point(10, 10 + i * 20); this.Controls.Add(radioButtons[i]); } } |
Создание группы переключателей из массива строк
В этом примере программно создается группа элементов управления RadioButton Windows Forms и их свойствам Text присваиваются значения из массива строк.
Компиляция кода
Для этого примера необходимы следующие компоненты.
· Форма Windows Form с элементом управления Button, которому задано имя button1. Задайте обработчику событий Click для button1 значение button1_Click.
Пример
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How to: Create a Non-Rectangular Button
This example demonstrates how to create a button that is a different shape from the standard rectangular button. The code adds a button in the shape of a circle to the form and creates an event handler that displays a message when the circle is clicked.
Compiling the Code
This example requires a Windows Forms Application project that contains a form named Form2.
Example
public Form2()
{
//
// Required for Windows Form Designer support.
//
InitializeComponent();
// Initialize the user-defined button,
// including defining handler for Click message,
// location and size.
myButtonObject myButton = new myButtonObject();
EventHandler myHandler =
new EventHandler(myButton_Click);
myButton.Click += myHandler;
myButton.Location = new System.Drawing.Point(20, 20);
myButton.Size = new System.Drawing.Size(101, 101);
this.Controls.Add(myButton);
}
public class myButtonObject : UserControl
{
// Draw the new button.
protected override void OnPaint(PaintEventArgs e)
{
Graphics graphics = e.Graphics;
Pen myPen = new Pen(Color.Black);
// Draw the button in the form of a circle
graphics.DrawEllipse(myPen, 0, 0, 100, 100);
myPen.Dispose();
}
}
// Handler for the click message.
void myButton_Click(Object sender, System.EventArgs e)
{
MessageBox.Show("Click");
}
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