I have tried like this:
XAML:
<TabControl ItemsSource="{Binding Items}" SelectionChanged="TabControl_SelectionChanged_1">
<TabControl.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Header}"/>
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<DataTemplate>
<TextBlock Text="{Binding Content}"/>
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
Code behind:
private void TabControl_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
{
TabControl control = sender as TabControl;
if (control != null && control.SelectedItem is Tab)
{
if ((control.SelectedItem as Tab).Header == " ")
{
(control.SelectedItem as Tab).Header = "New Tab";
(control.DataContext as TabViewModel).Items.Add(new Tab() { Header = " ", Content = "" });
control.UpdateLayout();
}
}
}
View-Model:
internal class TabViewModel : INotifyPropertyChanged
{
public void RaisePropertyChanged(string propertyname)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyname));
}
}
public event PropertyChangedEventHandler PropertyChanged;
private ObservableCollection<Tab> items;
public ObservableCollection<Tab> Items
{
get { return items; }
set { items = value; RaisePropertyChanged("Items"); }
}
public TabViewModel()
{
items = new ObservableCollection<Tab>();
items.Add(new Tab() { Header = "Tab Item 1", Content = "This is content 1" });
items.Add(new Tab() { Header = "Tab Item 2", Content = "This is content 2" });
items.Add(new Tab() { Header = "Tab Item 3", Content = "This is content 3" });
items.Add(new Tab() { Header = " ", Content = "" });
}
}
public class Tab:INotifyPropertyChanged
{
private string header;
public string Header
{
get { return header; }
set { header = value; RaisePropertyChanged("Header"); }
}
private string content;
public string Content
{
get { return content; }
set { content = value; RaisePropertyChanged("Content"); }
}
public void RaisePropertyChanged(string propertyname)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyname));
}
}
public event PropertyChangedEventHandler PropertyChanged;
}