WPF TABITEM样式拧紧控制位置

Question

我创建了一种新的tabitem样式，看起来像我想要的方式。但是现在，它拧紧放置在TabiTem上的所有控件的位置。它将它们从塔比特姆的左上区域移至底部。任何帮助将不胜感激。（是的，我确定我需要C＃中的样式，而不是XAML中的样式）

var functionReturnValue = new Style();
ControlTemplate L_NewControlTemplate = new ControlTemplate(typeof(TabItem));
FrameworkElementFactory L_ElemFactory = new FrameworkElementFactory(typeof(Border));
L_ElemFactory.SetBinding(Border.FocusVisualStyleProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("FocusVisualStyle") });
L_ElemFactory.SetBinding(Border.BackgroundProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("Background") });
L_ElemFactory.SetBinding(Border.BorderBrushProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("BorderBrush") });
L_ElemFactory.SetBinding(Border.BorderThicknessProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("BorderThickness") });
//L_ElemFactory.SetValue(Border.CornerRadiusProperty, new CornerRadius(0,12,0,0));
L_ElemFactory.SetValue(Border.SnapsToDevicePixelsProperty, true);
FrameworkElementFactory L_ContentPresenter = new FrameworkElementFactory(typeof(ContentPresenter));
L_ContentPresenter.SetValue(ContentPresenter.ContentSourceProperty, "Header");
L_ContentPresenter.SetBinding(ContentPresenter.HorizontalAlignmentProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("HorizontalContentAlignment") });
L_ContentPresenter.SetBinding(ContentPresenter.VerticalAlignmentProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("VerticalContentAlignment") });
L_ContentPresenter.SetBinding(ContentPresenter.SnapsToDevicePixelsProperty, new System.Windows.Data.Binding { RelativeSource = System.Windows.Data.RelativeSource.TemplatedParent, Path = new PropertyPath("SnapsToDevicePixels") });
L_ElemFactory.AppendChild(L_ContentPresenter);
L_NewControlTemplate.VisualTree = L_ElemFactory;
Trigger NewTrigger;
//Trigger IsEnabled = true
NewTrigger = new Trigger { Property = TabItem.IsEnabledProperty, Value = true };
NewTrigger.Setters.Add(new Setter(TabItem.ForegroundProperty, F_Foreround));
NewTrigger.Setters.Add(new Setter(TabItem.BackgroundProperty, F_Background));
L_NewControlTemplate.Triggers.Add(NewTrigger);

//Trigger MouseOver
NewTrigger = new Trigger { Property = TabItem.IsMouseOverProperty, Value = true };
NewTrigger.Setters.Add(new Setter(TabItem.ForegroundProperty, F_Foreround));
NewTrigger.Setters.Add(new Setter(TabItem.BackgroundProperty, F_MouseOver));
L_NewControlTemplate.Triggers.Add(NewTrigger);
//Trigger Selected
NewTrigger = new Trigger { Property = TabItem.IsSelectedProperty, Value = true };
NewTrigger.Setters.Add(new Setter(TabItem.ForegroundProperty, F_Foreround));
NewTrigger.Setters.Add(new Setter(TabItem.BackgroundProperty, F_Background));
L_NewControlTemplate.Triggers.Add(NewTrigger);
//Trigger Selected
NewTrigger = new Trigger { Property = TabItem.IsSelectedProperty, Value = false };
NewTrigger.Setters.Add(new Setter(TabItem.BackgroundProperty, L_IsDeActive));
L_NewControlTemplate.Triggers.Add(NewTrigger);
functionReturnValue.Setters.Add(new Setter(TabItem.FocusVisualStyleProperty, null));
functionReturnValue.Setters.Add(new Setter(TabItem.BackgroundProperty, F_Background));
functionReturnValue.Setters.Add(new Setter(TabItem.BorderBrushProperty, Brushes.Green));
functionReturnValue.Setters.Add(new Setter(TabItem.BorderThicknessProperty, new Thickness(0)));
functionReturnValue.Setters.Add(new Setter(TabItem.ForegroundProperty, F_Foreround));
functionReturnValue.Setters.Add(new Setter(TabItem.HorizontalContentAlignmentProperty, System.Windows.HorizontalAlignment.Center));
functionReturnValue.Setters.Add(new Setter(TabItem.VerticalContentAlignmentProperty, System.Windows.VerticalAlignment.Center));
functionReturnValue.Setters.Add(new Setter(TabItem.PaddingProperty, new Thickness(0)));
functionReturnValue.Setters.Add(new Setter(TabItem.MarginProperty, new Thickness(-4, -4, 0, 0)));
functionReturnValue.Setters.Add(new Setter(TabItem.TemplateProperty, L_NewControlTemplate));
return functionReturnValue;

Answer 1

，所以事实证明您的第一个问题是这两行：

functionReturnValue.Setters.Add(new Setter(TabItem.HorizontalContentAlignmentProperty, System.Windows.HorizontalAlignment.Center));
functionReturnValue.Setters.Add(new Setter(TabItem.VerticalContentAlignmentProperty, System.Windows.VerticalAlignment.Center));

只是省略这些；他们在标签项目内容上行动，而不是在标题上。

要重新安排标头，您有很多选择。

这将在您的内容主持人周围放置20个单位余量：

L_ContentPresenter.SetValue(ContentPresenter.MarginProperty, new Thickness(20));

20年代的任意；当然，您可以使用自己的价值观。这将使它给它20个单位边缘和10个单位顶/底部边缘：

L_ContentPresenter.SetValue(ContentPresenter.MarginProperty, new Thickness(20, 10, 20, 10));

您还可以在ContentPresenter周围的标题控制模板中放置一个Border或其他内容，并用包含控件的填充或边缘做某事。这种事情在XAML中非常易于使用，因此我不会在C＃中遇到麻烦。

您可以拥有TabItem样式集HeaderTemplate，即DataTemplate：

var headerTemplate = new DataTemplate();
var label = new FrameworkElementFactory(typeof(Label));
label.SetBinding(Label.ContentProperty, new Binding());
label.SetValue(Label.MarginProperty, new Thickness(16, 12, 16, 12));
headerTemplate.VisualTree = label;
functionReturnValue.Setters.Add(new Setter(TabItem.HeaderTemplateProperty, headerTemplate));

在关闭时，我想重申，您在运行时需要做的任何操作，您可以在XAML中更容易，更容易地做到XAML，而不是在C＃。

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