public class GanttViewGraphicalViewElement : GanttViewBaseViewElement, INotifyPropertyChanged, ICustomTypeDescriptor, ISupportSystemSkin, IComponent, IDisposable, IBindableComponent, ISupportDrag, ISupportDrop, IShortcutProvider, IStylableElement, IStylableNode, IPrimitiveElement, IShapedElement, IFillElement, IBorderElement, IBoxStyle, IBoxElement, IImageElement, ITextPrimitive, ITextProvider

Constructors

GanttViewGraphicalViewElement(RadGanttViewElement)

Initializes a new instance of the GanttViewGraphicalViewElement class.

Declaration

public GanttViewGraphicalViewElement(RadGanttViewElement ganttView)

Parameters

RadGanttViewElement ganttView The gantt view.

Fields

LinksColorProperty

Declaration

public static RadProperty LinksColorProperty

Field Value

RadProperty

LinksHandlesSizeProperty

Declaration

public static RadProperty LinksHandlesSizeProperty

Field Value

RadProperty

LinksSelectionClickTresholdProperty

Declaration

public static RadProperty LinksSelectionClickTresholdProperty

Field Value

RadProperty

LinksSelectionColorSpreadProperty

Declaration

public static RadProperty LinksSelectionColorSpreadProperty

Field Value

RadProperty

ShowTimelineTodayIndicatorProperty

Declaration

public static RadProperty ShowTimelineTodayIndicatorProperty

Field Value

RadProperty

ShowTodayIndicatorProperty

Declaration

public static RadProperty ShowTodayIndicatorProperty

Field Value

RadProperty

Properties

AutomaticTimelineTimeRange

Gets or sets a value indicating whether the TimeRange of the gantt view will be handled by the control.

Declaration

public bool AutomaticTimelineTimeRange { get; set; }

Property Value

System.Boolean

HorizontalScrollBarElement

Gets the horizontal scroll bar element.

Declaration

public RadScrollBarElement HorizontalScrollBarElement { get; }

Property Value

RadScrollBarElement The horizontal scroll bar element.

IsCreatingLink

Gets or sets a value indicating whether a new link is being created.

Declaration

protected bool IsCreatingLink { get; set; }

Property Value

System.Boolean `true` if a new link is being created; otherwise, `false`.

LinksColor

Gets or sets the color of the links.

Declaration

public Color LinksColor { get; set; }

Property Value

System.Drawing.Color The color of the links.

LinksHandlesSize

Gets or sets the size of the links handles.

Declaration

[RadPropertyDefaultValue("LinksHandlesSize", typeof(GanttViewGraphicalViewElement))]
public Size LinksHandlesSize { get; set; }

Property Value

System.Drawing.Size The size of the links handles.

LinksSelectionClickTreshold

Gets or sets how many pixels along the link of a link will trigger selection.

Declaration

public int LinksSelectionClickTreshold { get; set; }

Property Value

System.Int32

LinksSelectionColorSpread

Gets or sets how wide the selection highlight color will be painted along a selected link.

Declaration

public int LinksSelectionColorSpread { get; set; }

Property Value

System.Int32

NewLink

Gets or sets the new link instance. This is not null when a new link is being created.

Declaration

protected GanttViewLinkDataItem NewLink { get; set; }

Property Value

GanttViewLinkDataItem The new link.

OnePixelTime

Gets or sets how much time a single pixel represents.

Declaration

public TimeSpan OnePixelTime { get; set; }

Property Value

System.TimeSpan The one pixel time.

ShowTimelineTodayIndicator

Gets or sets a value indicating whether to show the timeline today indicator.

Declaration

public bool ShowTimelineTodayIndicator { get; set; }

Property Value

System.Boolean `true` if the timeline today indicator is visible; otherwise, `false`.

ShowTodayIndicator

Gets or sets a value indicating whether to show the today indicator.

Declaration

public bool ShowTodayIndicator { get; set; }

Property Value

System.Boolean `true` if the today indicator is visible; otherwise, `false`.

TimelineBehavior

Gets or sets the behavior which handles the perations related to the gantt view timeline items.

Declaration

public BaseGanttViewTimelineBehavior TimelineBehavior { get; set; }

Property Value

BaseGanttViewTimelineBehavior

TimelineContainer

Gets the timeline container.

Declaration

public GanttViewTimelineContainer TimelineContainer { get; }

Property Value

GanttViewTimelineContainer The timeline container.

TimelineEnd

Gets or sets the timeline end date.

Declaration

public DateTime TimelineEnd { get; set; }

Property Value

System.DateTime The timeline end.

TimelineItems

Gets the timeline items.

Declaration

public ObservableCollection<GanttViewTimelineDataItem> TimelineItems { get; }

Property Value

ObservableCollection<GanttViewTimelineDataItem> The timeline items.

TimelineRange

Gets or sets the type of the timeline range.

Declaration

public TimeRange TimelineRange { get; set; }

Property Value

TimeRange The timeline range.

TimelineScroller

Gets the timeline scroller.

Declaration

public GanttViewTimelineScroller TimelineScroller { get; }

Property Value

GanttViewTimelineScroller The timeline scroller.

TimelineStart

Gets or sets the timeline start date.

Declaration

public DateTime TimelineStart { get; set; }

Property Value

System.DateTime The timeline start.

TimelineTodayIndicatorElement

Gets the timeline today indicator element.

Declaration

public GanttViewTimelineTodayIndicatorElement TimelineTodayIndicatorElement { get; }

Property Value

GanttViewTimelineTodayIndicatorElement The timeline today indicator element.

TodayIndicatorElement

Gets the today indicator element.

Declaration

public GanttViewTodayIndicatorElement TodayIndicatorElement { get; }

Property Value

GanttViewTodayIndicatorElement The today indicator element.

Methods

ApplyOffset(List<Point>)

Applies the scroll offset to the link lines.

Declaration

protected virtual Point[] ApplyOffset(List<Point> lines)

Parameters

System.Collections.Generic.List<System.Drawing.Point> lines The lines.

Returns

System.Drawing.Point[]

ArrangeOverride(SizeF)

Declaration

protected override SizeF ArrangeOverride(SizeF finalSize)

Parameters

System.Drawing.SizeF finalSize

Returns

System.Drawing.SizeF

Overrides

Telerik.WinControls.UI.ScrollViewElement<Telerik.WinControls.UI.VirtualizedStackContainer<Telerik.WinControls.UI.GanttViewDataItem>>.ArrangeOverride(System.Drawing.SizeF)

CalculateFinishToFinishLines(GanttViewLinkDataItem, Nullable<Point>)

Calculates the finish to finish lines for the given link and optional point when a new link is being created.

Declaration

protected virtual void CalculateFinishToFinishLines(GanttViewLinkDataItem link, Point? point)

Parameters

GanttViewLinkDataItem link The link.
System.Nullable<System.Drawing.Point> point The position of the mouse (if creating or editing a link).

CalculateFinishToStartLines(GanttViewLinkDataItem, Nullable<Point>)

Calculates the finish to start lines for the given link and optional point when a new link is being created.

Declaration

protected virtual void CalculateFinishToStartLines(GanttViewLinkDataItem link, Point? point)

Parameters

GanttViewLinkDataItem link The link.
System.Nullable<System.Drawing.Point> point The position of the mouse (if creating or editing a link).

CalculateLinkLines()

Calculates the link lines for all links.

Declaration

protected virtual void CalculateLinkLines()

CalculateLinkLines(GanttViewDataItem)

Calculates the link lines for all links connected to the given item.

Declaration

protected virtual void CalculateLinkLines(GanttViewDataItem item)

Parameters

GanttViewDataItem item The item.

CalculateLinkLines(GanttViewLinkDataItem, Nullable<Point>)

Calculates the link lines for the given link and optional point when a new link is being created.

Declaration

public virtual void CalculateLinkLines(GanttViewLinkDataItem link, Point? point)

Parameters

GanttViewLinkDataItem link The link.
System.Nullable<System.Drawing.Point> point The position of the mouse (if creating or editing a link).

CalculateStartToFinishLines(GanttViewLinkDataItem, Nullable<Point>)

Calculates the start to finish lines for the given link and optional point when a new link is being created.

Declaration

protected virtual void CalculateStartToFinishLines(GanttViewLinkDataItem link, Point? point)

Parameters

GanttViewLinkDataItem link The link.
System.Nullable<System.Drawing.Point> point The position of the mouse (if creating or editing a link).

CalculateStartToStartLines(GanttViewLinkDataItem, Nullable<Point>)

Calculates the start to start lines for the given link and optional point when a new link is being created.

Declaration

protected virtual void CalculateStartToStartLines(GanttViewLinkDataItem link, Point? point)

Parameters

GanttViewLinkDataItem link The link.
System.Nullable<System.Drawing.Point> point The position of the mouse (if creating or editing a link).

CreateChildElements()

Creates the child elements.

Declaration

protected override void CreateChildElements()

Overrides

Telerik.WinControls.UI.VirtualizedScrollPanel<Telerik.WinControls.UI.GanttViewDataItem, Telerik.WinControls.UI.GanttViewBaseItemElement>.CreateChildElements()

DisposeManagedResources()

Disposes the managed resources.

Declaration

protected override void DisposeManagedResources()

Overrides

Telerik.WinControls.UI.VirtualizedScrollPanel<Telerik.WinControls.UI.GanttViewDataItem, Telerik.WinControls.UI.GanttViewBaseItemElement>.DisposeManagedResources()

DpiScaleChanged(SizeF)

Declaration

public override void DpiScaleChanged(SizeF scaleFactor)

Parameters

System.Drawing.SizeF scaleFactor

Overrides

RadElement.DpiScaleChanged(SizeF)

DrawLinkLines(IGraphics)

Draws the link lines.

Declaration

protected virtual void DrawLinkLines(IGraphics graphics)

Parameters

IGraphics graphics The graphics.

GetDrawRectangle(GanttViewDataItem, DateTime)

Returns a rectangle with zero width representing the coordinates where an object should be positioned or drawn for the given item and time.

Declaration

public virtual RectangleF GetDrawRectangle(GanttViewDataItem item, DateTime datetime)

Parameters

GanttViewDataItem item The item .
System.DateTime datetime The datetime.

Returns

System.Drawing.RectangleF

GetDrawRectangle(GanttViewDataItem, DateTime, DateTime)

Returns a rectangle representing the coordinates where an object should be positioned or drawn for the given item and time frame.

Declaration

public virtual RectangleF GetDrawRectangle(GanttViewDataItem item, DateTime start, DateTime end)

Parameters

GanttViewDataItem item The item.
System.DateTime start The start.
System.DateTime end The end.

Returns

System.Drawing.RectangleF

GetDrawRectangle(GanttViewDataItem, DateTime, DateTime, Boolean)

Returns a rectangle representing the coordinates where an object should be positioned or drawn for the given item and time frame.

Declaration

public virtual RectangleF GetDrawRectangle(GanttViewDataItem item, DateTime start, DateTime end, bool addScrollOffset)

Parameters

GanttViewDataItem item The item.
System.DateTime start The start.
System.DateTime end The end.
System.Boolean addScrollOffset if set to `true` the horizontal scroll bar offset is taken into account.

Returns

System.Drawing.RectangleF

GetDrawRectangle(GanttViewDataItem, DateTime, DateTime, Boolean, Boolean, Boolean)

Returns a rectangle representing the coordinates where an object should be positioned or drawn for the given item and time frame.

Declaration

public virtual RectangleF GetDrawRectangle(GanttViewDataItem item, DateTime start, DateTime end, bool addHScrollOffset, bool addVScrollOffset, bool addHeaderHeight)

Parameters

GanttViewDataItem item The item.
System.DateTime start The start.
System.DateTime end The end.
System.Boolean addHScrollOffset if set to `true` the horizontal scroll bar offset is taken into account.
System.Boolean addVScrollOffset if set to `true` the vertical scroll bar offset is taken into account.
System.Boolean addHeaderHeight if set to `true` the header header height is added to the y coordinate of the result.

Returns

System.Drawing.RectangleF

GetLink(Point)

Gets the link item in the given position if such exists otherwise returns null;

Declaration

public virtual GanttViewLinkDataItem GetLink(Point location)

Parameters

System.Drawing.Point location The location in control coordinates where to search for a link.

Returns

GanttViewLinkDataItem

InitializeFields()

Initializes the fields.

Declaration

protected override void InitializeFields()

Overrides

Telerik.WinControls.UI.ScrollViewElement<Telerik.WinControls.UI.VirtualizedStackContainer<Telerik.WinControls.UI.GanttViewDataItem>>.InitializeFields()

LineIntersectsLine(Point, Point, Point, Point)

Returns a value indicating whether two lines intersect.

Declaration

protected virtual bool LineIntersectsLine(Point l1p1, Point l1p2, Point l2p1, Point l2p2)

Parameters

System.Drawing.Point l1p1 The begin point of the first line.
System.Drawing.Point l1p2 The end point of the first line
System.Drawing.Point l2p1 The begin point of the second line.
System.Drawing.Point l2p2 The end point of the second line.

Returns

System.Boolean

LineIntersectsRect(Point, Point, Rectangle)

Returns a value indicating whether a line represented with two points intersects the given rectangle.

Declaration

protected virtual bool LineIntersectsRect(Point p1, Point p2, Rectangle r)

Parameters

System.Drawing.Point p1 The begin point of the line.
System.Drawing.Point p2 The end point of the line.
System.Drawing.Rectangle r The rectangle.

Returns

System.Boolean

MeasureOverride(SizeF)

Declaration

protected override SizeF MeasureOverride(SizeF availableSize)

Parameters

System.Drawing.SizeF availableSize

Returns

System.Drawing.SizeF

Overrides

Telerik.WinControls.UI.VirtualizedScrollPanel<Telerik.WinControls.UI.GanttViewDataItem, Telerik.WinControls.UI.GanttViewBaseItemElement>.MeasureOverride(System.Drawing.SizeF)

OnNotifyPropertyChanged(PropertyChangedEventArgs)

Raises the standard .NET PropertyChanged event.

Declaration

protected override void OnNotifyPropertyChanged(PropertyChangedEventArgs e)

Parameters

System.ComponentModel.PropertyChangedEventArgs e

Overrides

RadObject.OnNotifyPropertyChanged(PropertyChangedEventArgs)

OnOnePixelTimeChanged(Boolean)

Called when the OnePixelTime property is assigned a new value.

Declaration

protected virtual void OnOnePixelTimeChanged(bool zoomin)

Parameters

System.Boolean zoomin Indicated whether the change results in a zoom-in or zoom-out.

PaintChildren(IGraphics, Rectangle, Single, SizeF, Boolean)

Paints the children.

Declaration

protected override void PaintChildren(IGraphics graphics, Rectangle clipRectange, float angle, SizeF scale, bool useRelativeTransformation)

Parameters

IGraphics graphics The graphics.
System.Drawing.Rectangle clipRectange The clip rectangle.
System.Single angle The angle.
System.Drawing.SizeF scale The scale.
System.Boolean useRelativeTransformation if set to `true` [use relative transformation].

Overrides

VisualElement.PaintChildren(IGraphics, Rectangle, Single, SizeF, Boolean)

PopulateFlatTasksCollection()

Populates the flat tasks collection which is used for positioning links.

Declaration

protected virtual void PopulateFlatTasksCollection()

ScrollTo(DateTime)

Scrolls the graphical view to the given date. The date is placed in the middle of the view.

Declaration

public virtual bool ScrollTo(DateTime dateTime)

Parameters

System.DateTime dateTime The date to scroll to.

Returns

System.Boolean true if the scroll operation was successful otherwise false.

ShouldDrawLink(GanttViewLinkDataItem, Point[])

Determines whether the given link should be drawn.

Declaration

protected virtual bool ShouldDrawLink(GanttViewLinkDataItem link, Point[] linkLines)

Parameters

GanttViewLinkDataItem link The link.
System.Drawing.Point[] linkLines The link lines.

Returns

System.Boolean

SynchronizeItemElements()

Synchronizes the item elements.

Declaration

protected virtual void SynchronizeItemElements()

Update(RadGanttViewElement.UpdateActions)

Updates the specified update action.

Declaration

public void Update(RadGanttViewElement.UpdateActions updateAction)

Parameters

RadGanttViewElement.UpdateActions updateAction The update action.

UpdateInnerState()

Updates the inner state.

Declaration

protected virtual void UpdateInnerState()

UpdateOnMeasure(SizeF)

Declaration

protected override bool UpdateOnMeasure(SizeF availableSize)

Parameters

System.Drawing.SizeF availableSize

Returns

System.Boolean

Overrides

Telerik.WinControls.UI.VirtualizedScrollPanel<Telerik.WinControls.UI.GanttViewDataItem, Telerik.WinControls.UI.GanttViewBaseItemElement>.UpdateOnMeasure(System.Drawing.SizeF)

UpdateScrollers(RadGanttViewElement.UpdateActions)

Updates the scrollers.

Declaration

protected virtual void UpdateScrollers(RadGanttViewElement.UpdateActions updateAction)

Parameters

RadGanttViewElement.UpdateActions updateAction The update action.

UpdateTextViewScroller()

Updates the text view scroller when the scroll bar is moved.

Declaration

protected virtual void UpdateTextViewScroller()

UpdateTimelineZoom()

Updates the timeline zoom.

Declaration

public virtual void UpdateTimelineZoom()

Extension Methods

CommonExtensions.ClearIfNoBindingAndSet(RadObject, RadProperty)

DispatcherExtensions.CheckAccess(RadObject)

SerializationExtensions.DeserializePrimitives(RadItem, SerializationInfo)

CommonExtensions.SetIfDifferent(RadObject, RadProperty, Object)

CommonExtensions.ClearIfSet(RadObject, RadProperty)

CommonExtensions.IsLocalValueSet(RadObject, RadProperty)

DispatcherExtensions.CheckAccess(RadObject)

SvgExtentions.Traverse<T>(T, Func<T, IEnumerable<T>>)

SvgExtentions.TraverseDepthFirst<T>(T, Func<T, IEnumerable<T>>)