How to display items horizontally in a listbox control? - silverlight

Question

I am developing window phone 7 application. I am new to the window phone 7 application. I have the following listbox control in my application
<ListBox Margin="0,355,70,205" Name="WeekSummaryListBox" DataContext="{Binding}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Amount}" Foreground="Orange"></TextBlock>
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Currency}" Foreground="Orange"></TextBlock>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.Template>
<ControlTemplate>
<ScrollViewer HorizontalScrollBarVisibility="Visible">
<ItemsPresenter />
</ScrollViewer>
</ControlTemplate>
</ListBox.Template>
</ListBox>
In the above listbox control items are displayed vertically. I want to display the items in a listbox control horizonatlly. So I am using the following code.
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
but when I put the two textblock inside stackpanel it gives error. For this I am using the following code
<StackPanel Orientation="Horizontal">
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Amount}" Foreground="Orange"></TextBlock>
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Currency}" Foreground="Orange"></TextBlock>
</StackPanel>
I am trying for the following code. In the following code I am getting error
<ListBox Margin="0,355,70,205" Name="WeekSummaryListBox" DataContext="{Binding}">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Amount}" Foreground="Orange"></TextBlock>
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Currency}" Foreground="Orange"></TextBlock>
</StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.Template>
<ControlTemplate>
<ScrollViewer HorizontalScrollBarVisibility="Visible">
<ItemsPresenter />
</ScrollViewer>
</ControlTemplate>
</ListBox.Template>
</ListBox>
I am getting the error "Cannot explicitly modify children collection of Panel used as ItemsPanel for ItemsControl.ItemsControl geneartes child elements for Panel"
I am using the following function to display the data in the ListBox:
public void WeekSumValue(int TransactionType_ID)
{
UserInterfaceManager UserInterfaceManagerObj = new UserInterfaceManager();
List<UserInterfaceManager.TotalSummary> WeekSummary = new List<UserInterfaceManager.TotalSummary>();
ObservableCollection<AmountCurrency> WeekIncomeSumCollection = new ObservableCollection<AmountCurrency>();
WeekSummary = UserInterfaceManagerObj.LoadWeekSum(SelectedButtonName, TransactionType_ID, selectedDate);
foreach (UserInterfaceManager.TotalSummary vWeekSummary in WeekSummary)
{
WeekIncomeSumCollection.Add(new AmountCurrency(vWeekSummary.Amount, vWeekSummary.Currency));
}
if (WeekIncomeSumCollection.Count != 0 && SummaryCombobox.SelectedIndex == 0)
{
WeekSummaryListBox.ItemsSource = WeekIncomeSumCollection;
}
else if (WeekIncomeSumCollection.Count != 0 && SummaryCombobox.SelectedIndex == 2)
{
MonthSummaryListBox.ItemsSource = WeekIncomeSumCollection;
}
else
{
ObservableCollection<TextBlock> NoRecordsCollection = new ObservableCollection<TextBlock>();
TextBlock NoRecordsTextBlock = new TextBlock();
NoRecordsTextBlock.Text = "No record found";
NoRecordsTextBlock.FontSize = 25;
NoRecordsTextBlock.Foreground = new SolidColorBrush(Colors.Gray);
NoRecordsCollection.Add(NoRecordsTextBlock);
if (SummaryCombobox.SelectedIndex == 0)
WeekSummaryListBox.ItemsSource = NoRecordsCollection;
if (SummaryCombobox.SelectedIndex == 2)
MonthSummaryListBox.ItemsSource = NoRecordsCollection;
}
}
In the above function data is coming dynamically. There can be two, three or more records also there can be no record. I am binding this dynamic data to the textblocks which are inside the listbox
I am using the following class used in the above code
public class AmountCurrency
{
public int Amount { get; set; }
public String Currency { get; set; }
public AmountCurrency(int Amount, String Currency)
{
this.Amount = Amount;
this.Currency = Currency;
}
}
How should I put the above two textbock inside the listbox which will display the items horizonatlly ? Can you please provide me any code or link through which I can resolve the above issue ? If I am doing anything wrong then please guide me.

Answer 1

It looks to me like you've got the two text blocks inside the wrong part of the template.
These two text blocks should be in the ListBox.ItemTemplate, not in the ListBox.ItemsPanelTemplate:
<ListBox ItemsSource="{Binding Items}">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"></StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,0,0,17" Width="300" Orientation="Horizontal">
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Amount}" Foreground="Orange"></TextBlock>
<TextBlock TextWrapping="Wrap" Width="150" Text="{Binding Currency}" Foreground="Orange"></TextBlock>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
If you want to understand how this control works, then start from a working "basic" control which shows items and then look at adding the ItemsPanelTemplate to that working sample.

Answer 2

Replace DataContext="{Binding}" with ItemsSource="{Binding}" that works for me.