Stop TabControl from recreating its children

By default, the TabControl shares a panel to render it’s content. To do what you want (and many other WPF developers), you need to extend TabControl like so: TabControlEx.cs [TemplatePart(Name = “PART_ItemsHolder”, Type = typeof(Panel))] public class TabControlEx : TabControl { private Panel ItemsHolderPanel = null; public TabControlEx() : base() { // This is necessary … Read more

How to programmatically select a TabItem in WPF TabControl

As @Chris says, any of the first three things should work and as @Phyxx says, it doesn’t always really work. The problem is some subtle thing about the order of property changes. To work around it you need to let the WPF invoke your tab-selection code in its own time: Dispatcher.BeginInvoke((Action)(() => MyTabControl.SelectedIndex = x)); … Read more

How to get current tab index in Flutter

The whole point of DefaultTabController is for it to manage tabs by itself. If you want some custom tab management, use TabController instead. With TabController you have access to much more informations, including the current index. class MyTabbedPage extends StatefulWidget { const MyTabbedPage({Key key}) : super(key: key); @override _MyTabbedPageState createState() => new _MyTabbedPageState(); } class … Read more

Hide Tab Header on C# TabControl

Add a new class to your project and paste the code shown below. Compile. Drop the new control from the top of the toolbox onto your form. It shows the tabs at design time so you can easily switch between them while designing. They are hidden at runtime, use the SelectedTab or SelectedIndex property in … Read more

TabControl with Add New Tab Button (+)

An almost complete solution using IEditableCollectionView: ObservableCollection<ItemVM> _items; public ObservableCollection<ItemVM> Items { get { if (_items == null) { _items = new ObservableCollection<ItemVM>(); var itemsView = (IEditableCollectionView)CollectionViewSource.GetDefaultView(_items); itemsView.NewItemPlaceholderPosition = NewItemPlaceholderPosition.AtEnd; } return _items; } } private DelegateCommand<object> _newCommand; public DelegateCommand<object> NewCommand { get { if (_newCommand == null) { _newCommand = new DelegateCommand<object>(New_Execute); } return … Read more

How to build vertical tab sets in WPF?

Have you tried the TabControl.TabStripPlacement Property? The following example creates a tab control that positions the tabs on the left side. <TabControl TabStripPlacement=”Left” Margin=”0, 0, 0, 10″> <TabItem Name=”fontweight” Header=”FontWeight”> <TabItem.Content> <TextBlock TextWrapping=”WrapWithOverflow”> FontWeight property information goes here. </TextBlock> </TabItem.Content> </TabItem> <TabItem Name=”fontsize” Header=”FontSize”> <TabItem.Content> <TextBlock TextWrapping=”WrapWithOverflow”> FontSize property information goes here. </TextBlock> </TabItem.Content> </TabItem> … Read more

In C# WPF, why is my TabControl’s SelectionChanged event firing too often?

The TabControl.SelectionChanged is the same event as a ComboBox.SelectionChanged It originates from Selector.SelectionChanged. So, if you do not mark your event as handled in your event handler, it will bubble up the tree, and eventually arrive at your TabControl, which is causing this “firing too often” issue. Mark your event as handled in your SelectionChanged … Read more

How to create trapezoid tabs in WPF tab control

I tried to find some control templates or solutions for this problem on internet, but I didn’t find any “acceptable” solution for me. So I wrote it in my way and here is an example of my first (and last=)) attempt to do it: <Window x:Class=”TabControlTemplate.Window1″ xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation” xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml” xmlns:src=”https://stackoverflow.com/questions/561931/clr-namespace:TabControlTemplate” Title=”Window1″ Width=”600″ Height=”400″> <Window.Background> <LinearGradientBrush StartPoint=”0,0″ … Read more

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