modified tabcontrol style
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@@ -11,8 +11,8 @@ namespace HandyControl.Controls
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[TemplatePart(Name = OverflowButtonKey, Type = typeof(ContextMenuToggleButton))]
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[TemplatePart(Name = HeaderPanelKey, Type = typeof(TabPanel))]
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[TemplatePart(Name = OverflowScrollviewer, Type = typeof(ScrollViewer))]
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[TemplatePart(Name = OverflowButtonLeft, Type = typeof(Button))]
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[TemplatePart(Name = OverflowButtonRight, Type = typeof(Button))]
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[TemplatePart(Name = ScrollButtonLeft, Type = typeof(Button))]
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[TemplatePart(Name = ScrollButtonRight, Type = typeof(Button))]
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public class TabControl : System.Windows.Controls.TabControl
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{
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private const string OverflowButtonKey = "PART_OverflowButton";
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@@ -21,9 +21,9 @@ namespace HandyControl.Controls
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private const string OverflowScrollviewer = "PART_OverflowScrollviewer";
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private const string OverflowButtonLeft = "PART_OverflowButtonLeft";
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private const string ScrollButtonLeft = "PART_ScrollButtonLeft";
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private const string OverflowButtonRight = "PART_OverflowButtonRight";
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private const string ScrollButtonRight = "PART_ScrollButtonRight";
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private ContextMenuToggleButton _buttonOverflow;
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@@ -31,9 +31,9 @@ namespace HandyControl.Controls
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private ScrollViewer _scrollviewerOverflow;
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private Button _buttonOverflowLeft;
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private Button _buttonScrollLeft;
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private Button _buttonOverflowRight;
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private Button _buttonScrollRight;
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/// <summary>
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/// 是否为内部操作
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@@ -130,16 +130,21 @@ namespace HandyControl.Controls
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set => SetValue(TabItemHeightProperty, value);
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}
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//TODO: Implement this
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/// <summary>
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/// 是否可以滚动
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/// </summary>
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public static readonly DependencyProperty IsScrollableProperty = DependencyProperty.Register(
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"IsScrollable", typeof(bool), typeof(TabControl), new PropertyMetadata(ValueBoxes.FalseBox));
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/// <summary>
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/// 是否可以滚动
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/// </summary>
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public bool IsScrollable
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{
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get { return (bool)GetValue(IsScrollableProperty); }
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set { SetValue(IsScrollableProperty, value); }
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get => (bool) GetValue(IsScrollableProperty);
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set => SetValue(IsScrollableProperty, value);
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}
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public static readonly DependencyProperty IsScrollableProperty =
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DependencyProperty.Register("IsScrollable", typeof(bool), typeof(TabControl), new PropertyMetadata(ValueBoxes.FalseBox));
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/// <summary>
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/// 可见的标签数量
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/// </summary>
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@@ -188,6 +193,20 @@ namespace HandyControl.Controls
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public override void OnApplyTemplate()
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{
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if (_buttonOverflow != null)
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{
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if (_buttonOverflow.Menu != null)
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{
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_buttonOverflow.Menu.Closed -= Menu_Closed;
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_buttonOverflow.Menu = null;
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}
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_buttonOverflow.Click -= ButtonOverflow_Click;
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}
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if (_buttonScrollLeft != null) _buttonScrollLeft.Click -= ButtonScrollLeft_Click;
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if (_buttonScrollRight != null) _buttonScrollRight.Click -= ButtonScrollRight_Click;
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base.OnApplyTemplate();
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_headerPanel = Template.FindName(HeaderPanelKey, this) as TabPanel;
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@@ -195,31 +214,11 @@ namespace HandyControl.Controls
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_buttonOverflow = Template.FindName(OverflowButtonKey, this) as ContextMenuToggleButton;
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_scrollviewerOverflow = Template.FindName(OverflowScrollviewer, this) as ScrollViewer;
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_buttonOverflowLeft = Template.FindName(OverflowButtonLeft, this) as Button;
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_buttonOverflowRight = Template.FindName(OverflowButtonRight, this) as Button;
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_buttonScrollLeft = Template.FindName(ScrollButtonLeft, this) as Button;
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_buttonScrollRight = Template.FindName(ScrollButtonRight, this) as Button;
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_buttonOverflowLeft.Click += (s, e) =>
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{
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var currentOffset = _scrollviewerOverflow.CurrentHorizontalOffset;
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var modulo = (currentOffset % TabItemWidth);
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var offset = currentOffset - (modulo == 0 ? TabItemWidth : modulo);
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if (offset >= 0)
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{
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_scrollviewerOverflow.ScrollToHorizontalOffsetInternal(offset);
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}
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};
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_buttonOverflowRight.Click += (s, e) =>
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{
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var currentOffset = _scrollviewerOverflow.CurrentHorizontalOffset;
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var offset = currentOffset + (TabItemWidth - (currentOffset % TabItemWidth));
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if(offset <= _scrollviewerOverflow.ScrollableWidth)
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{
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_scrollviewerOverflow.ScrollToHorizontalOffsetInternal(offset);
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}
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};
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if (_buttonScrollLeft != null) _buttonScrollLeft.Click += ButtonScrollLeft_Click;
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if (_buttonScrollRight != null) _buttonScrollRight.Click += ButtonScrollRight_Click;
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if (_buttonOverflow != null)
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{
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@@ -231,48 +230,78 @@ namespace HandyControl.Controls
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Placement = PlacementMode.Bottom,
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PlacementTarget = _buttonOverflow
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};
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menu.Closed += (s, e) => _buttonOverflow.IsChecked = false;
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menu.Closed += Menu_Closed;
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_buttonOverflow.Menu = menu;
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_buttonOverflow.Click += (s, e) =>
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_buttonOverflow.Click += ButtonOverflow_Click;
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}
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}
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private void Menu_Closed(object sender, RoutedEventArgs e)
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{
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_buttonOverflow.IsChecked = false;
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}
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private void ButtonScrollRight_Click(object sender, RoutedEventArgs e)
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{
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var currentOffset = _scrollviewerOverflow.CurrentHorizontalOffset;
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var offset = currentOffset + (TabItemWidth - currentOffset % TabItemWidth);
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if (offset <= _scrollviewerOverflow.ScrollableWidth)
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{
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_scrollviewerOverflow.ScrollToHorizontalOffsetInternal(offset);
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}
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}
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private void ButtonScrollLeft_Click(object sender, RoutedEventArgs e)
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{
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var currentOffset = _scrollviewerOverflow.CurrentHorizontalOffset;
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var modulo = currentOffset % TabItemWidth;
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var offset = currentOffset - (modulo < 1e-6 ? TabItemWidth : modulo);
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if (offset >= 0)
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{
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_scrollviewerOverflow.ScrollToHorizontalOffsetInternal(offset);
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}
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}
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private void ButtonOverflow_Click(object sender, RoutedEventArgs e)
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{
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if (_buttonOverflow.IsChecked == true)
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{
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_buttonOverflow.Menu.Items.Clear();
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foreach (TabItem item in Items)
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{
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if (_buttonOverflow.IsChecked == true)
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var menuItem = new MenuItem
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{
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_buttonOverflow.Menu.Items.Clear();
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foreach (TabItem item in Items)
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Header = item.Header,
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Width = TabItemWidth,
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IsChecked = item.IsSelected,
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IsCheckable = true
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};
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menuItem.Click += delegate
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{
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_buttonOverflow.IsChecked = false;
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var index = Items.IndexOf(item);
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if (index >= _itemShowCount)
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{
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var menuItem = new MenuItem
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Items.Remove(item);
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Items.Insert(0, item);
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if (IsEnableAnimation)
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{
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Header = item.Header,
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Width = TabItemWidth,
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IsChecked = item.IsSelected,
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IsCheckable = true
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};
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menuItem.Click += delegate
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_headerPanel.ClearValue(TabPanel.FluidMoveDurationProperty);
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}
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else
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{
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_buttonOverflow.IsChecked = false;
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var index = Items.IndexOf(item);
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if (index >= _itemShowCount)
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{
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Items.Remove(item);
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Items.Insert(0, item);
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if (IsEnableAnimation)
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{
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_headerPanel.ClearValue(TabPanel.FluidMoveDurationProperty);
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}
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else
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{
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_headerPanel.FluidMoveDuration = new Duration(TimeSpan.FromSeconds(0));
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}
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_headerPanel.ForceUpdate = true;
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_headerPanel.Measure(new Size(_headerPanel.DesiredSize.Width, ActualHeight));
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_headerPanel.ForceUpdate = false;
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}
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item.IsSelected = true;
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};
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_buttonOverflow.Menu.Items.Add(menuItem);
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_headerPanel.FluidMoveDuration = new Duration(TimeSpan.FromSeconds(0));
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}
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_headerPanel.ForceUpdate = true;
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_headerPanel.Measure(new Size(_headerPanel.DesiredSize.Width, ActualHeight));
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_headerPanel.ForceUpdate = false;
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}
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}
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};
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item.IsSelected = true;
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};
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_buttonOverflow.Menu.Items.Add(menuItem);
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}
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}
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}
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}
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