How To Change Private Event To Public On Facebook
XAML : in Primary Window
<code><Window.DataContext>
<local:Sample_View_Model x:Name="SVM"/>
</Window.DataContext>
<Window.Resources>
<DataTemplate ten:Key="SubGroupItem_DataTemplate">
<Border MinHeight="50" MinWidth="50" BorderBrush="Gray" BorderThickness="two" Margin="5">
<StackPanel>
<TextBlock Text="{Binding Path=SVM.MainGoups.SubGroups.id, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
<TextBlock Text="{Binding Path=championship, Manner=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
</StackPanel>
</Edge>
</DataTemplate>
<DataTemplate x:Cardinal="MainGroupItem_DataTemplate">
<Edge MinHeight="50" BorderBrush="Gray" BorderThickness="two" Margin="five">
<StackPanel>
<TextBlock Text="{Binding Path=id, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
<TextBlock Text="{Bounden Path=title, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
<ListView ItemsSource="{Bounden SubGroups}" ItemTemplate="{StaticResource SubGroupItem_DataTemplate}" MinHeight="50" MinWidth="l" Margin="10"/>
</StackPanel>
</Border>
</DataTemplate>
</Window.Resource>
<Grid>
<StackPanel Orientation="Vertical">
<ListView Grid.Row="2" ItemsSource="{Bounden Path=MainGroups, IsAsync=True, Way=TwoWay, UpdateSourceTrigger=PropertyChanged}"
BorderBrush="Transparent" ItemTemplate="{StaticResource MainGroupItem_DataTemplate}">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel ten:Name="YüklemePaneli" Orientation="Horizontal"
Width="{Bounden (FrameworkElement.ActualWidth),
RelativeSource={RelativeSource AncestorType=ScrollContentPresenter}}"
ItemWidth="{Binding (ListView.View).ItemWidth, RelativeSource={RelativeSource AncestorType=ListView}}"
MinWidth="{Binding ItemWidth, RelativeSource={RelativeSource Cocky}}"
ItemHeight="{Binding (ListView.View).ItemHeight, RelativeSource={RelativeSource AncestorType=ListView}}"
IsItemsHost="Truthful"
VerticalAlignment="Center" HorizontalAlignment="Middle"
/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
<Push Content="Click Me" Command="{Binding NewColor_Command}"/>
</StackPanel>
</Filigree></code>
C# : in View Model Class and another classes
<code>namespace ObservableCollection_Notification
{
public class Sample_View_Model : INotifyPropertyChanged
{
public Sample_View_Model()
{
MainGroups.Add(new MainGroupsItem()
{
id = "1",
title = "Primary Group 1",
SubGroups = new ItemsChangeObservableCollection<SubGroupsItem>()
{
new SubGroupsItem()
{
id = "i",
championship = "Sub Group 1"
},
new SubGroupsItem()
{
id = "two",
title = "Sub Group 2"
},
new SubGroupsItem()
{
id = "three",
title = "Sub Group iii"
},
new SubGroupsItem()
{
id = "4",
title = "Sub Group iv"
}
}
});
MainGroups.Add together(new MainGroupsItem()
{
id = "ii",
title = "Main Group two",
SubGroups = new ItemsChangeObservableCollection<SubGroupsItem>()
{
new SubGroupsItem()
{
id = "1",
title = "Sub Group 1"
},
new SubGroupsItem()
{
id = "ii",
championship = "Sub Group two"
},
new SubGroupsItem()
{
id = "iii",
title = "Sub Group iii"
},
new SubGroupsItem()
{
id = "4",
title = "Sub Group iv"
}
}
});
// Add colour control
NewColor_Command = new RelayCommand( () => NewColor());
}
public ICommand NewColor_Command { become; gear up; }
public ItemsChangeObservableCollection<MainGroupsItem> _MainGroups = new ItemsChangeObservableCollection<MainGroupsItem>();
public ItemsChangeObservableCollection<MainGroupsItem> MainGroups
{
get { return _MainGroups; }
set
{
_MainGroups = value;
OnPropertyChanged("MainGroups");
}
}
public void NewColor()
{
MainGroups.Add(new MainGroupsItem()
{
id = "3",
title = "Main Group 3",
SubGroups = new ItemsChangeObservableCollection<SubGroupsItem>()
{
new SubGroupsItem()
{
id = "1",
title = "Sub Grouping 1"
},
new SubGroupsItem()
{
id = "ii",
championship = "Sub Group 2"
},
new SubGroupsItem()
{
id = "3",
title = "Sub Group 3"
},
new SubGroupsItem()
{
id = "4",
championship = "Sub Group 4"
}
}
});
MainGroups[0].SubGroups.Add(new SubGroupsItem() { id = "Xxx", title = "YYYY"});
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
public class MainGroupsItem : INotifyPropertyChanged
{
public string _id;
public string id
{
get => _id;
ready
{
_id = value;
OnPropertyChanged();
}
}
public string _title;
public string title
{
get => _title;
set up
{
_title = value;
OnPropertyChanged();
}
}
public ItemsChangeObservableCollection<SubGroupsItem> _SubGroups;
public ItemsChangeObservableCollection<SubGroupsItem> SubGroups
{
get => _SubGroups;
set
{
_SubGroups = value;
OnPropertyChanged();
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = zippo)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
public class SubGroupsItem : INotifyPropertyChanged
{
public cord _id;
public string id
{
get => _id;
set
{
_id = value;
OnPropertyChanged();
}
}
public string _title;
public string title
{
get => _title;
fix
{
_title = value;
OnPropertyChanged();
}
}
public effect PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] cord propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
/// <summary>
/// This class adds the ability to refresh the list when any property of
/// the objects changes in the listing which implements the INotifyPropertyChanged.
/// </summary>
/// <typeparam name="T">
public grade ItemsChangeObservableCollection<T> : ObservableCollection<T> where T : INotifyPropertyChanged
{
protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
{
if (e.Activity == NotifyCollectionChangedAction.Add)
{
RegisterPropertyChanged(e.NewItems);
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
UnRegisterPropertyChanged(e.OldItems);
}
else if (e.Action == NotifyCollectionChangedAction.Replace)
{
UnRegisterPropertyChanged(e.OldItems);
RegisterPropertyChanged(e.NewItems);
}
base of operations.OnCollectionChanged(e);
}
protected override void ClearItems()
{
UnRegisterPropertyChanged(this);
base.ClearItems();
}
private void RegisterPropertyChanged(IList items)
{
foreach (INotifyPropertyChanged item in items)
{
if (item != zilch)
{
item.PropertyChanged += new PropertyChangedEventHandler(item_PropertyChanged);
}
}
}
private void UnRegisterPropertyChanged(IList items)
{
foreach (INotifyPropertyChanged detail in items)
{
if (detail != zippo)
{
item.PropertyChanged -= new PropertyChangedEventHandler(item_PropertyChanged);
}
}
}
private void item_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}
}
/// <summary>
/// A bones control that runs an Action
/// </summary>
public class RelayCommand : ICommand
{
#region Private Members
/// <summary>
/// The action to run
/// </summary>
private Action mAction;
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