60 lines
1.9 KiB
C#
60 lines
1.9 KiB
C#
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Subclass CheckBox
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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class CustomCheckBox: Form
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{
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public static void Main()
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{
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Application.Run(new CustomCheckBox());
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}
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public CustomCheckBox()
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{
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int cyText = Font.Height;
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int cxText = cyText / 2;
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FontStyle[] afs = { FontStyle.Bold, FontStyle.Italic,
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FontStyle.Underline, FontStyle.Strikeout };
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Label label = new Label();
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label.Parent = this;
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label.Text = "I Love Clementine";
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label.AutoSize = true;
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for (int j = 0; j < 4; j++)
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{
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FontStyleCheckBox chkbox = new FontStyleCheckBox();
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chkbox.Parent = this;
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chkbox.Text = afs[j].ToString();
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chkbox.fontstyle = afs[j];
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chkbox.Location = new Point(2 * cxText,
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(4 + 3 * j) * cyText / 2);
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chkbox.Size = new Size(12 * cxText, cyText);
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chkbox.CheckedChanged += new EventHandler(CheckBoxOnCheckedChanged);
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}
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}
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void CheckBoxOnCheckedChanged(object obj, EventArgs ea)
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{
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FontStyle fs = 0;
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Label label = null;
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for (int j = 0; j < Controls.Count; j++)
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{
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Control ctrl = Controls[j];
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if (ctrl.GetType() == typeof(Label))
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label = (Label) ctrl;
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else if (ctrl.GetType() == typeof(FontStyleCheckBox))
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if (((FontStyleCheckBox) ctrl).Checked)
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fs |= ((FontStyleCheckBox) ctrl).fontstyle;
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}
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label.Font = new Font(label.Font, fs);
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}
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}
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class FontStyleCheckBox: CheckBox
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{
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public FontStyle fontstyle;
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}
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