Control Tag Property : Control « GUI Windows Forms « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. GUI Windows Forms
3. Control

using System;
using System.Drawing;
using System.Windows.Forms;

public class Tags : Form
{
  Label lbl;

  public Tags()
  {
    Size = new Size(300,200);

    lbl = new Label();
    lbl.Text = "Label";
    lbl.AutoSize = true;
    lbl.Parent = this;
    lbl.Location = new Point(0,0);

    FontStyle theEnum = new FontStyle();
    FontStyle[] theStyles = (FontStyle[])Enum.GetValues(theEnum.GetType());

    int i = 1;
    foreach (FontStyle style in theStyles)
    {
      Button btn = new Button();
      btn.Parent = this;
      btn.Location = new Point(25,25 * i++);
      btn.Size = new Size(75,20);
      btn.Text = style.ToString();
      btn.Tag = style;
      btn.Click += new System.EventHandler(btn_Click);
    }
  }

  static void Main() 
  {
    Application.Run(new Tags());
  }

  private void btn_Click(object sender, EventArgs e)
  {
    Button btn = (Button)sender;
    FontStyle fs = (FontStyle)btn.Tag;
    lbl.Font = new Font(lbl.Font, fs);
  }
}

23.53.Control
	23.53.1.	Control: TabIndex, Size and Location
	23.53.2.	Control Tag Property
	23.53.3.	Control Size and Location - Dynamic
	23.53.4.	Control Size and Location
	23.53.5.	Override the DefaultSize property to gain better performance
	23.53.6.	Create User Control based on Control class
	23.53.7.	Get controls on a form and verify its type
	23.53.8.	Set Caption(title) of the form
	23.53.9.	Set form forground color
	23.53.10.	Render onto the button