Silverlight Adding Child Controls to a ListBox in VB.NET

This article demonstrates how to host various child controls within a ListBox control in Silverlight.
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This article demonstrates how to host various child controls within a ListBox control in Silverlight.

Adding child controls to a ComboBox is similar to adding any item to a ListBox. The ListBox.Items represents a collection of items of a ListBox. We can use ListBox.Items.Add() method to add an object to a ListBox. This object item can be a text, control or any other object.

The code snippet in Listing 12 adds a string, a Button, a TextBlock, a DateTime, a Rectangle, and a Panel with child controls to a ListBox.


Here is VB.NET code. 
 

' Add a String

        ListBox1.Items.Add("ListBox with Child Controls") 
 

        ' Add a Button

        Dim btn As New Button()
        btn.Height = 50
        
btn.Width = 150
        
btn.Content = "Click ME"
        
btn.Background = New SolidColorBrush(Colors.Orange)
        btn.Foreground = New SolidColorBrush(Colors.Black)
        ListBox1.Items.Add(btn) 
 

        ' Create a TextBlock and Add it to ListBox

        Dim textBlockItem As New TextBlock()
        textBlockItem.TextAlignment = TextAlignment.Center
        textBlockItem.FontFamily = New FontFamily("Georgia")
        textBlockItem.FontSize = 14
        textBlockItem.FontWeight = FontWeights.ExtraBold
        textBlockItem.Text = 
"Hello! I am a text block."

        ' Add TextBlock to ListBox

        ListBox1.Items.Add(textBlockItem)

         ' Add a DateTime to a ListBox

        Dim dateTime1 As New DateTime(2010, 10, 12, 8, 15, 55)
        ListBox1.Items.Add(dateTime1) 
 

        ' Add a Rectangle to a ListBox

        Dim rect1 As New Rectangle()
        rect1.Width = 50
        rect1.Height = 50
        rect1.Fill = New SolidColorBrush(Colors.Red)
        ListBox1.Items.Add(rect1) 
 

        ' Add a panel that contains child controls

        Dim textBlock1 As New TextBlock()
        textBlock1.TextAlignment = TextAlignment.Center
        textBlock1.Text = "Panel with child controls" 
 

        Dim ellipse1 As New Ellipse()
        ellipse1.Width = 50
        ellipse1.Height = 50
        ellipse1.Fill = New SolidColorBrush(Colors.Green) 
 

        Dim ListBoxPanel As New StackPanel()
        ListBoxPanel.Width = 200
        ListBoxPanel.Background = New SolidColorBrush(Colors.Yellow)
        ListBoxPanel.Children.Add(textBlock1)
        ListBoxPanel.Children.Add(ellipse1) 
 

        ' Add Panel to ListBox

        ListBox1.Items.Add(ListBoxPanel) 
 

        ListBox1.SelectedIndex = 0
        ListBox1.Padding = New Thickness(0)
        ListBox1.MaxWidth = 200


The output looks like following:

ListBoxChildControls.png

Using this same approach, you can add any controls to a ListBox. Also, keep in mind, these item controls can work independently. For example, if you need to add an event to the Button control in a ListBox, you may. 

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