Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
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I'm creating a runtime expander and I want to add to my datagrid. Here's the code:
// Creazione Expander
var expGrid = new Expander { Name = "exp" };
var expStackPanel = new StackPanel { Name = "expStackPanel", Height = 30, Orientation=Orientation.Horizontal };
// Ciclo
foreach (var column in GridData.Columns)
{
var newtextBlock = new TextBlock
{
Style = this.FindResource("HeaderTextBlock") as Style,
Width = 100,
Text = column.Header.ToString()
};
expStackPanel.Children.Add(newtextBlock);
}
expGrid.Content = expStackPanel;
//GridData. //?? How to?
How I've the Expander but I dunno how to add to the datagrid GridData.
I will give you my sample of binding expander to DataGrid in cs code:
xaml code:
<Window.Resources>
<local:GroupToTitleConverter x:Key="groupToTitleConverter" />
</Window.Resources>
<Grid>
<DataGrid x:Name="GridData" AutoGenerateColumns="False">
<DataGrid.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<Expander IsExpanded="True">
<Expander.Header>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GroupItem}}, Converter={StaticResource ResourceKey=groupToTitleConverter}}" />
</StackPanel>
</Expander.Header>
<Expander.Content>
<ItemsPresenter />
</Expander.Content>
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</DataGrid.GroupStyle>
<DataGrid.Columns>
<DataGridTextColumn Header="MyName" Binding="{Binding MyName}"/>
<DataGridTextColumn Header="MyId" Binding="{Binding MyId}" />
</DataGrid.Columns>
</DataGrid>
</Grid>
Cs code for binding:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
ObservableCollection<MyClass> ltMyClass = new ObservableCollection<MyClass>()
{
new MyClass(){MyName="Name1",MyId="Id1"},
new MyClass(){MyName="Name2",MyId="Id2"},
new MyClass(){MyName="Name3",MyId="Id3"},
new MyClass(){MyName="Name4",MyId="Id3"},
new MyClass(){MyName="Name5",MyId="Id3"}
};
ListCollectionView collection = new ListCollectionView(ltMyClass);
collection.GroupDescriptions.Add(new PropertyGroupDescription("MyId"));
this.GridData.ItemsSource = collection;
}
public class MyClass
{
public string MyName { get; set; }
public string MyId { get; set; }
}
public class GroupToTitleConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
GroupItem groupItem = value as GroupItem;
CollectionViewGroup collectionViewGroup = groupItem.Content as CollectionViewGroup;
MyClass entryViewModel = collectionViewGroup.Items[0] as MyClass;
string title = string.Format("{0} - {1}", entryViewModel.MyName, entryViewModel.MyId);
return title;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}