/// <summary>
/// Creates a new instance of <see cref="Column"/> class.
/// </summary>
public GridButtonCommand()
{
RelativeSource src = new RelativeSource(RelativeSourceMode.FindAncestor);
src.AncestorType = typeof(DataGrid);
this.RelativeSource = src;
}
/// <summary>
/// Initializes a new instance of the <see cref="Binding"/> class with initial
/// property values copied from the specified <see cref="Binding"/>.
/// </summary>
/// <param name="original">
/// The <see cref="Binding"/> to copy.
/// </param>
public Binding(Binding original)
{
if (original != null)
{
FallbackValue = original.FallbackValue;
TargetNullValue = original.TargetNullValue;
StringFormat = original.StringFormat;
_isInStyle = original._isInStyle;
_converter = original._converter;
#if MIGRATION
_culture = original._culture;
#else
_culture = original._culture;
#endif
_converterParameter = original._converterParameter;
_elementName = original._elementName;
_mode = original._mode;
_xamlPath = original._xamlPath;
_path = original._path;
_relativeSource = original._relativeSource;
_source = original._source;
_updateSourceTrigger = original._updateSourceTrigger;
_validatesOnExceptions = original._validatesOnExceptions;
_notifyOnValidationError = original._notifyOnValidationError;
_bindsDirectlyToSource = original._bindsDirectlyToSource;
_validatesOnNotifyDataErrors = original._validatesOnNotifyDataErrors;
_validatesOnDataErrors = original._validatesOnDataErrors;
_wasModeSetByUserRatherThanDefaultValue = original._wasModeSetByUserRatherThanDefaultValue;
}
}
/// <summary>
/// Gets a binding source as a <see cref="RelativeSource"/> of a <see cref="DependencyObject"/>.
/// </summary>
/// <param name="relativeSource"><see cref="RelativeSource"/> value for seeking.</param>
/// <param name="root">Root reference object.</param>
/// <returns>The source object that is relatated to the reference one, if any found, null otherwise.</returns>
internal static object GetSourceFromRelativeSource(RelativeSource relativeSource, DependencyObject root)
{
if (relativeSource == null)
{
return(root);
}
if (relativeSource.Mode == RelativeSourceMode.FindAncestor)
{
if (relativeSource.AncestorType != null)
{
return(root.FindParentByType(relativeSource.AncestorType));
}
else if (relativeSource.AncestorLevel > 0)
{
return(WPFVisualFinders.FindParentByLevel(root, relativeSource.AncestorLevel));
}
}
else if (relativeSource.Mode == RelativeSourceMode.Self)
{
return(root);
}
else if (relativeSource.Mode == RelativeSourceMode.PreviousData)
{
//TODO.
throw new NotSupportedException(nameof(RelativeSourceMode.PreviousData) + " is currently not supported.");
}
else if (relativeSource.Mode == RelativeSourceMode.TemplatedParent)
{
//TODO.
throw new NotSupportedException(nameof(RelativeSourceMode.TemplatedParent) + " is currently not supported.");
}
return(root);
}
public MainWindow()
{
InitializeComponent();
//不确定数据源的名字叫什么， 但可以通过xaml的结构查找到， 比如： 查询上一层的gird类型的元素的Name，
//这时可以是使用RelativeSource绑定。
//从txtBox的的第一层开始，从内向外查找第一个grid，并且把grid的name属性绑定给textBox的Text
//1. 查找第一层的grid对象
//RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);
//rs.AncestorLevel = 1;
//rs.AncestorType = typeof(Grid);
//2. 查找第二层的DockPanel对象
//RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);
//rs.AncestorLevel = 2;
//rs.AncestorType = typeof(DockPanel);
//3. 查找自己的name
RelativeSource rs = new RelativeSource();
rs.Mode = RelativeSourceMode.Self;
Binding binding = new Binding("Name")
{
RelativeSource = rs
};
this.txtBox.SetBinding(TextBox.TextProperty, binding);
}
private static object FindRelativeSource(BindingExpression expr)
{
RelativeSource relativeSource = expr.ParentBinding.RelativeSource;
switch (relativeSource.Mode)
{
case RelativeSourceMode.Self:
return(expr.Target);
case RelativeSourceMode.TemplatedParent:
if (expr.ParentBinding.TemplateOwner != null)
{
return(expr.ParentBinding.TemplateOwner.TemplateOwner);
}
// todo: find out why we enter here in Client_TUI.
Debug.WriteLine("ERROR: ParentBinding.TemplateOwner is null.");
return(null);
case RelativeSourceMode.FindAncestor:
return(FindAncestor(expr.Target, relativeSource));
case RelativeSourceMode.None:
default:
return(null);
}
}
private void ApplyParentContext()
{
// Set the path relative to the DataContext
Path = new PropertyPath(string.Join(Separators.Point, "DataContext", Path?.Path ?? string.Empty));
// Set the parent ItemsControl as relative source
RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(ItemsControl), 1);
}
private void Initialize()
{
RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(MainWindow), 1);
Path = new System.Windows.PropertyPath("Busy");
Converter = new BoolNotConverter();
Mode = BindingMode.OneWay;
}
public static DependencyObject Resolve(this RelativeSource subject, DependencyObject source)
{
if (subject == null)
{
throw new ArgumentNullException("subject");
}
if (source == null)
{
throw new ArgumentNullException("source");
}
switch (subject.Mode)
{
case RelativeSourceMode.FindAncestor:
return(new UpwardTreeWalk <DependencyObject>(source, LogicalTreeHelper.GetParent).Skip(subject.AncestorLevel - 1).First());
case RelativeSourceMode.PreviousData:
throw new NotImplementedException("Mode = RelativeSourceMode.PreviousData not implemented.");
default:
case RelativeSourceMode.Self:
return(source);
case RelativeSourceMode.TemplatedParent:
throw new NotImplementedException("Mode = RelativeSourceMode.TemplatedParent not implemented.");
}
}
private void InitialLayoutControl()
{
for (int i = 0; i < 15; i++)
{
Button btn = new Button();
btn.Width = 40;
btn.Height = 40;
btn.Margin = new Thickness(10);
btn.Tag = i;
btn.Style = Application.Current.FindResource("btnPicLayoutStyle") as Style;
Binding bdcmd = new Binding("LayoutButtonCommand");
btn.SetBinding(Button.CommandProperty, bdcmd);
RelativeSource rs = new RelativeSource();
rs.Mode = RelativeSourceMode.Self;
Binding bdcmdparam = new Binding("Tag")
{
RelativeSource = rs
};
btn.SetBinding(Button.CommandParameterProperty, bdcmdparam);
Image img = new Image();
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.UriSource = new Uri(string.Format("PicLayoutIcon/{0}.png", i), UriKind.Relative);
bi.EndInit();
img.Source = bi;
btn.Content = img;
wrapLayout.Children.Add(btn);
}
this.ShowLayoutMergeTool();
}
/// <summary>
/// Initializes a new instance of the <see cref="DependencyPropertyWatcher{T}"/> class.
/// </summary>
/// <param name="relativesource">Databind relative source info</param>
/// <param name="propertyPath">Property path.</param>
public DependencyPropertyWatcher(RelativeSource relativesource, PropertyPath propertyPath)
{
Source = relativesource;
BindingOperations.SetBinding(this, ValueProperty, new Binding()
{
RelativeSource = relativesource, Path = propertyPath, Mode = BindingMode.OneWay
});
}
// Token: 0x060075FE RID: 30206 RVA: 0x0021A63F File Offset: 0x0021883F
internal RelativeObjectRef(RelativeSource relativeSource)
{
if (relativeSource == null)
{
throw new ArgumentNullException("relativeSource");
}
this._relativeSource = relativeSource;
}
public GridViewColumn GetColumn(string header, SolidColorBrush background, string binding, string width, string foregroundBinding, TextAlignment textAlignment)
{
GridViewColumn gvc = new GridViewColumn();
gvc.Header = header;
var tb = new FrameworkElementFactory(typeof(TextBlock));
tb.SetValue(TextBlock.MarginProperty, new Thickness(-6, 0, -6, 0));
tb.SetValue(TextBlock.PaddingProperty, new Thickness(5, 0, 5, 0));
tb.SetValue(TextBlock.VerticalAlignmentProperty, VerticalAlignment.Center);
tb.SetValue(TextBlock.BackgroundProperty, background);
tb.SetValue(TextBlock.ForegroundProperty, Brushes.White);
tb.SetValue(TextBlock.ForegroundProperty, Brushes.White);
tb.SetValue(TextBlock.TextAlignmentProperty, textAlignment);
if (width != "")
{
gvc.SetValue(WidthProperty, Double.Parse(width));
}
Binding bText = new Binding();
bText.Path = new PropertyPath(binding);
if (foregroundBinding != "")
{
Binding bForeground = new Binding();
bForeground.Path = new PropertyPath(foregroundBinding);
tb.SetBinding(TextBlock.ForegroundProperty, bForeground);
}
Binding bHeight = new Binding();
bHeight.Path = new PropertyPath("ActualHeight");
RelativeSource rsH = new RelativeSource();
rsH.Mode = RelativeSourceMode.FindAncestor;
rsH.AncestorType = typeof(ListViewItem);
rsH.AncestorLevel = 1;
bHeight.RelativeSource = rsH;
tb.SetBinding(TextBlock.TextProperty, bText);
tb.SetBinding(TextBlock.HeightProperty, bHeight);
DataTemplate dt = new DataTemplate()
{
VisualTree = tb
};
gvc.CellTemplate = dt;
return(gvc);
}
public AncestorReference(string path, Type type) : base(path)
{
Converter = new SimpleConverter <object, Reference>(i => new Reference(i), null);
Mode = BindingMode.OneWay;
RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor)
{
AncestorType = type
};
}
public IsDesignBind()
{
RelativeSource = new RelativeSource()
{
Mode = RelativeSourceMode.Self
};
//Path = DesignerProperties.IsInDesignModeProperty;
Path = new System.Windows.PropertyPath(DesignerProperties.IsInDesignModeProperty);
}
void MoveThumb_Loaded(object sender, RoutedEventArgs e)
{
Binding binding = new Binding();
RelativeSource rs = new RelativeSource(RelativeSourceMode.TemplatedParent);
binding.RelativeSource = rs;
binding.Path = new PropertyPath(".");
this.SetBinding(Thumb.DataContextProperty, binding);
}
/// <summary>
/// Returns a clone of this binding but with a different value for the 'RelativeSource' property.
/// Using this method is required if you wish to set a RelativeSource and the original binding uses
/// ElementName or Source.
/// </summary>
/// <param name="subject">The binding.</param>
/// <param name="newRelativeSource">The new value for RelativeSource.</param>
/// <returns>The clone.</returns>
public static Binding Clone(this Binding subject, RelativeSource newRelativeSource)
{
if (subject == null)
{
throw new ArgumentNullException("subject");
}
return(BindingExtensions.Clone(subject, null, newRelativeSource, null));
}
public override object ProvideValue(IServiceProvider provider)
{
if (RelativeSource == null)
{
RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, AncestorType, AncestorLevel);
}
return(base.ProvideValue(provider));
}
/// <summary>
/// Ctor.
/// Initializes <see cref="_pp"/> and <see cref="_rs"/>.
/// If the <see cref="PropertyPath.Path"/> is "." or <see cref="String.Empty"/> then a <see cref="RelativeSource"/> binding is configured.
/// </summary>
/// <param name="path">Path to the property.</param>
public BindingEvaluator(string path)
{
var isrel = path == "." || String.IsNullOrEmpty(path);
_pp = isrel ? null : new PropertyPath(path);
_rs = isrel ? new RelativeSource()
{
Mode = RelativeSourceMode.Self
} : null;
}
private void DataGrid_AutoGeneratedColumns(object sender, EventArgs e)
{
var IsSelected = ((ExcelDialogViewModel)DataContext).IsSelected;
var ColumnColor = ((ExcelDialogViewModel)DataContext).ColumnColor;
IsSelected.Clear();
ColumnColor.Clear();
RelativeSource RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor)
{
AncestorType = GetType()
};
var context = (ExcelDialogViewModel)DataContext;
for (int i = 0; i < DataGrid.Columns.Count; i++)
{
IsSelected.Add(false);
if (i == context.DateColumnIndex)
{
context.Mode = 1;
context.Label = "Please select your schedule column";
ColumnColor.Add(context.DateColumnColor);
}
else
{
ColumnColor.Add(Brushes.White);
}
DataGrid.Columns[i].CellStyle = new Style
{
TargetType = typeof(DataGridCell),
Setters =
{
new Setter
{
Property = DataGridCell.IsSelectedProperty,
Value = new Binding(string.Format("DataContext.IsSelected[{0}]", i))
{
RelativeSource = RelativeSource, Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
},
},
new Setter
{
Property = DataGridCell.BackgroundProperty,
Value = new Binding(string.Format("DataContext.ColumnColor[{0}]", i))
{
RelativeSource = RelativeSource, Mode = BindingMode.Default, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
},
}
},
};
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SwitchBindingExtension" /> class.
/// </summary>
/// <param name="relativeSource">The relative source.</param>
/// <param name="path">The binding path.</param>
/// <param name="valueIfTrue">The value if true.</param>
/// <param name="valueIfFalse">The value if false.</param>
public SwitchBindingExtension(
RelativeSource relativeSource,
string path,
object valueIfTrue,
object valueIfFalse)
: base(path)
{
this.Initialize();
this.RelativeSource = relativeSource;
this.ValueIfTrue = valueIfTrue;
this.ValueIfFalse = valueIfFalse;
}
private void RelativeSource()
{
RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);
rs.AncestorLevel = 1;
rs.AncestorType = typeof(Grid);
Binding binding = new Binding("Name")
{
RelativeSource = rs
};
this.textBox2.SetBinding(TextBox.TextProperty, binding);
}
public Window15()
{
InitializeComponent();
RelativeSource rs = new RelativeSource(RelativeSourceMode.Self);
Binding bind = new Binding("Name")
{
RelativeSource = rs
};
this.textBox1.SetBinding(TextBox.TextProperty, bind);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
Button btn = sender as Button;
RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);
rs.AncestorType = typeof(ListBoxItem);
Binding binding = new Binding("Tag")
{
RelativeSource = rs
};
btn.SetBinding(Button.ContentProperty, binding);
}
private static void RegisterDependencyPropertyBinding(
FrameworkElement element, string dependencyPropertyToBind, DependencyProperty attachedDp)
{
var bindingSource = new RelativeSource {
Mode = RelativeSourceMode.Self
};
var dependencyPropertyExtensionBinding = new Binding
{
Path = new PropertyPath(dependencyPropertyToBind),
RelativeSource = bindingSource
};
element.SetBinding(attachedDp, dependencyPropertyExtensionBinding);
}
static GroupByControl()
{
// This DefaultStyleKey will only be used in design-time.
DefaultStyleKeyProperty.OverrideMetadata(typeof(GroupByControl), new FrameworkPropertyMetadata(new Markup.ThemeKey(typeof(Views.TableView), typeof(GroupByControl))));
FrameworkElementFactory staircaseFactory = new FrameworkElementFactory(typeof(StaircasePanel));
ItemsPanelTemplate itemsPanelTemplate = new ItemsPanelTemplate(staircaseFactory);
RelativeSource ancestorSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(GroupByControl), 1);
Binding binding = new Binding();
binding.Path = new PropertyPath(GroupByControl.ConnectionLineAlignmentProperty);
binding.Mode = BindingMode.OneWay;
binding.RelativeSource = ancestorSource;
staircaseFactory.SetBinding(StaircasePanel.ConnectionLineAlignmentProperty, binding);
binding = new Binding();
binding.Path = new PropertyPath(GroupByControl.ConnectionLineOffsetProperty);
binding.Mode = BindingMode.OneWay;
binding.RelativeSource = ancestorSource;
staircaseFactory.SetBinding(StaircasePanel.ConnectionLineOffsetProperty, binding);
binding = new Binding();
binding.Path = new PropertyPath(GroupByControl.ConnectionLinePenProperty);
binding.Mode = BindingMode.OneWay;
binding.RelativeSource = ancestorSource;
staircaseFactory.SetBinding(StaircasePanel.ConnectionLinePenProperty, binding);
binding = new Binding();
binding.Path = new PropertyPath(GroupByControl.StairHeightProperty);
binding.Mode = BindingMode.OneWay;
binding.RelativeSource = ancestorSource;
staircaseFactory.SetBinding(StaircasePanel.StairHeightProperty, binding);
binding = new Binding();
binding.Path = new PropertyPath(GroupByControl.StairSpacingProperty);
binding.Mode = BindingMode.OneWay;
binding.RelativeSource = ancestorSource;
staircaseFactory.SetBinding(StaircasePanel.StairSpacingProperty, binding);
itemsPanelTemplate.Seal();
ItemsControl.ItemsPanelProperty.OverrideMetadata(typeof(GroupByControl), new FrameworkPropertyMetadata(itemsPanelTemplate));
DataGridControl.ParentDataGridControlPropertyKey.OverrideMetadata(typeof(GroupByControl), new FrameworkPropertyMetadata(new PropertyChangedCallback(GroupByControl.ParentGridControlChangedCallback)));
DataGridControl.DataGridContextPropertyKey.OverrideMetadata(typeof(GroupByControl), new FrameworkPropertyMetadata(new PropertyChangedCallback(GroupByControl.DataGridContextChangedCallback)));
FocusableProperty.OverrideMetadata(typeof(GroupByControl), new FrameworkPropertyMetadata(false));
}
public static void SetBinding(
string pathString,
DependencyObject target,
DependencyProperty targetProperty)
{
Binding binding = new Binding();
RelativeSource relativeSource = new RelativeSource();
relativeSource.Mode = RelativeSourceMode.TemplatedParent;
binding.RelativeSource = relativeSource;
binding.Path = new PropertyPath(pathString);
BindingOperations.SetBinding(target, targetProperty, binding);
}
internal void SetValueTextDefaultStyle()
{
this.ValueText.Style = Defaults.DefaultValueTextStyle;
// Set up the default margin binding
Binding b = new Binding("Height");
b.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
var relSource = new RelativeSource();
relSource.Mode = RelativeSourceMode.FindAncestor;
relSource.AncestorType = typeof(Gauge);
b.RelativeSource = relSource;
b.Converter = new WpfGauge.Converters.ValueTextMarginConverter();
this.ValueText.SetBinding(TextBlock.MarginProperty, b);
}
public UserControl3()
{
InitializeComponent();
var source = new RelativeSource(RelativeSourceMode.FindAncestor);
source.AncestorType = this.GetType();
var b = new Binding();
//b.Source = this;
b.RelativeSource = source;
b.Mode = BindingMode.TwoWay;
b.Path = new PropertyPath(nameof(Value));
textBlockValue.SetBinding(TextBlock.TextProperty, b);
}
public AncestorBinding(string path) : base(path)
{
if (!IsPropertyReference(path))
{
throw new ArgumentException("Ancestor type not specified in path '{0}'.".Fmt(path), "path");
}
string propRef = path.Substring(1, path.IndexOf(')') - 1);
string ownerTypeName = propRef.Substring(0, propRef.LastIndexOf('.')).Trim();
Type ownerType = GetTypeFromName(Path, ownerTypeName);
if (ownerType == null)
{
throw new ArgumentException("Ancestor type '{0}' not found using path '{1}'.".Fmt(ownerTypeName, path), "path");
}
RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, ownerType, 1);
}
public Window15()
{
InitializeComponent();
RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);
rs.AncestorLevel = 2;
rs.AncestorType = typeof(Grid);
Binding bind = new Binding("Name")
{
RelativeSource = rs
};
this.textBox1.SetBinding(TextBox.TextProperty, bind);
}
