C# Simplified, part 7: Working with WinForm Controls - Working with List boxes

(Page 6 of 6 )

The process of creating a list box is the same as for a combo box. The only difference is that you can select more than one item using a list box. By default, though, you can select only one item. In order to select multiple items you have to set the SelectionMode property of the list box to MultiSimple or MultiExtended.

The MultiSimple property enables you to select all items with mouse clicks. It toggles the selected item. On the other hand, the MultiExtended property enables you to select items by holding either the Shift or Control key. The code for producing a list box using the MultiSimple property is shown in listing 7.7

Listing 7.7

001: using System;
002: using System.Drawing;
003: using System.Windows.Forms;
004:
005: public class MyListbox: Form
006: {
007:   // Object of Label created
008:   ListBox lb = new ListBox();
009:
010:   MyListbox()
011:   {
012:     this.Controls.Add(lb);
013:     lb.Items.Add("Visual Basic .NET");
014:     lb.Items.Add("Visual C# .NET");
015:     lb.Items.Add("Visual J# .NET");
016:     lb.Text = "Please select";
017:     lb.SelectionMode = SelectionMode.MultiSimple;
018:     lb.Location = new Point(50,50);
019:     lb.Size = new Size(200,70);
020:     this.Text = "C# FAQ - List box Control";
021:   }
022:
023:   public static void Main()
024:   {
025:     Application.Run(new MyListbox());
026:   }
027: }

Output

In the next article, you will learn how to handle events using the above explained controls.

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