MessageBox

Ukázka vlastního MessageBox v C#

c-sharp

public static class MessageDialog
{
	private static Dictionary<MessageBoxIcon, Icon> icons;

	static MessageDialog()
	{
		icons = new Dictionary<MessageBoxIcon, Icon>();
		icons.Add(MessageBoxIcon.Error, SystemIcons.Error);
		icons.Add(MessageBoxIcon.Information, SystemIcons.Information);
		icons.Add(MessageBoxIcon.None, null);
		icons.Add(MessageBoxIcon.Question, SystemIcons.Question);
		icons.Add(MessageBoxIcon.Warning, SystemIcons.Warning);
	}

	public static DialogResult Show(string title, string text, MessageBoxIcon icon)
	{
		Form form = new Form();
		Label label = new Label();
		PictureBox pic = new PictureBox();
		Button button = new Button();

		pic.Size = new Size(0, 0);

		if (icons[icon] != null)
		{
			pic.Image = icons[icon].ToBitmap();
			pic.Size = new Size(pic.Image.Width, pic.Image.Height);
		}

		label.Text = text;
		label.Font = new Font(FontFamily.GenericSansSerif, 10f);
		label.MaximumSize = new Size(400 - pic.Size.Width - 20, 0);
		label.AutoSize = true;

		int textHeight = 0;
		using (Graphics g = form.CreateGraphics())
		{
			 textHeight = (int)g.MeasureString(label.Text, label.Font, label.MaximumSize.Width).Height;
		}

		button.Text = "OK";
		button.DialogResult = DialogResult.OK;

		form.Text = title;
		form.ClientSize = new Size(400, textHeight + button.Height + 50);
		form.FormBorderStyle = FormBorderStyle.FixedDialog;
		form.StartPosition = FormStartPosition.CenterScreen;
		form.MinimizeBox = false;
		form.MaximizeBox = false;
		form.AcceptButton = button;
		form.BackColor = Color.White;


		label.SetBounds(pic.Width + 20, 20, label.Width, label.Height);
		pic.SetBounds(10, form.ClientSize.Height / 3, pic.Width, pic.Height);
		button.SetBounds(form.ClientSize.Width - button.Width - 10, form.ClientSize.Height - button.Height - 10, button.Width, button.Height);

		form.Controls.AddRange(new Control[] { label, pic, button });

		return form.ShowDialog();
	}
}

Neformátovaný

Přidáno: 2.1.2013
Expirace: Neuvedeno

Autor: David Jančík