Class LayoutGrid

Base class for objects that draw a grid onto a view.

Inheritance

System.Object

PropertyContainer

LayoutGrid

Implements

IServiceReferenceHolder

IServiceReferenceProvider

IPropertyObserver

IPropertyContainer

System.ICloneable

System.Runtime.Serialization.ISerializable

System.IDisposable

Inherited Members

PropertyContainer.Dispose()

PropertyContainer.FullContainerName

PropertyContainer.GetPropertyContainerByName(String)

PropertyContainer.HistoryService

PropertyContainer.InheritContainerMeasureUnits

PropertyContainer.IPropertyObserver.OnPropertyChanged(String, String)

PropertyContainer.IPropertyObserver.OnPropertyChanging(String, String, Object)

PropertyContainer.ISerializable.GetObjectData(SerializationInfo, StreamingContext)

PropertyContainer.m_propertyObserver

PropertyContainer.OnPropertyChanged(String)

PropertyContainer.OnPropertyChanging(String, Object)

PropertyContainer.PropertyObserber

PropertyContainer.ProvideServiceReference(RuntimeTypeHandle)

PropertyContainer.RecordPropertyChanged(String)

PropertyContainer.UpdateServiceReferences(IServiceReferenceProvider)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Syncfusion.Windows.Forms.Diagram

Assembly: Syncfusion.Diagram.Base.dll

Syntax

public class LayoutGrid : PropertyContainer, IServiceReferenceHolder, IServiceReferenceProvider, IPropertyObserver, IPropertyContainer, ICloneable, ISerializable, IDisposable

Remarks

Derived classes must override the Draw(Graphics, RectangleF) method in order to draw the grid.

View

Constructors

LayoutGrid(LayoutGrid)

Initializes a new instance of the LayoutGrid class.

Declaration

public LayoutGrid(LayoutGrid src)

Parameters

Type	Name	Description
LayoutGrid	src	The SRC.

LayoutGrid(View)

Initializes a new instance of the LayoutGrid class.

Declaration

public LayoutGrid(View containerView)

Parameters

Type	Name	Description
View	containerView	View in which to draw the grid.

LayoutGrid(SerializationInfo, StreamingContext)

Initializes a new instance of the LayoutGrid class. Deserialization constructor.

Declaration

protected LayoutGrid(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
System.Runtime.Serialization.SerializationInfo	info	The info.
System.Runtime.Serialization.StreamingContext	context	The context.

Properties

Color

Gets or sets the color to use for drawing the grid.

Declaration

public Color Color { get; set; }

Property Value

Type
System.Drawing.Color

ContainerView

Gets or sets the view this grid is attached to.

Declaration

public View ContainerView { get; set; }

Property Value

Type
View

Remarks

This property is a reference to the view that the layout grid renders itself onto.

View

DashOffset

Gets or sets distance from the start of the line to the dash pattern.

Declaration

public float DashOffset { get; set; }

Property Value

Type
System.Single

DashStyle

Gets or sets a System.Drawing.Drawing2D.DashStyle value to use for dashed lines.

Declaration

public DashStyle DashStyle { get; set; }

Property Value

Type
System.Drawing.Drawing2D.DashStyle

GridStyle

Gets or sets the appearance of the grid.

Declaration

public GridStyle GridStyle { get; set; }

Property Value

Type
GridStyle

HorizontalSpacing

Gets or sets the horizontal distance between grid points.

Declaration

public float HorizontalSpacing { get; set; }

Property Value

Type
System.Single

Remarks

Spacing is specified in world units.

MeasureUnit

Gets or sets the measure unit.

Declaration

public override MeasureUnits MeasureUnit { get; set; }

Property Value

Type	Description
MeasureUnits	The measure unit.

Overrides

PropertyContainer.MeasureUnit

MinPixelSpacing

Gets or sets minimum spacing between grid points in device units.

Declaration

public float MinPixelSpacing { get; set; }

Property Value

Type
System.Single

Remarks

This value specifies the threshold at which the grid will stop drawing itself because the spacing between grid points is too small.

RenderingStyle

Gets the grid rendering style.

Declaration

public RenderingStyle RenderingStyle { get; }

Property Value

Type	Description
RenderingStyle	The rendering style.

Remarks

The rendering style is used to configure graphics.

SnapToGrid

Gets or sets a value indicating whether the snap to grid feature is enable or disabled.

Declaration

public bool SnapToGrid { get; set; }

Property Value

Type
System.Boolean

Remarks

This property determines how the GetNearestGridPoint(PointF) method behaves.

GetNearestGridPoint(PointF, Int32)

VerticalSpacing

Gets or sets the vertical distance between grid points.

Declaration

public float VerticalSpacing { get; set; }

Property Value

Type
System.Single

Remarks

Spacing is specified in world units.

Visible

Gets or sets a value indicating whether controls in the grid is visible.

Declaration

public bool Visible { get; set; }

Property Value

Type
System.Boolean

Methods

Clone()

Clones this instance.

Declaration

public override object Clone()

Returns

Type	Description
System.Object	The cloned object.

Overrides

PropertyContainer.Clone()

Draw(Graphics, RectangleF)

Renders the grid onto a specified System.Drawing.Graphics object.

Declaration

public virtual void Draw(Graphics grfx, RectangleF rectGrid)

Parameters

Type	Name	Description
System.Drawing.Graphics	grfx	Drawing context object.
System.Drawing.RectangleF	rectGrid	Visible grid bounds.

Remarks

This method is overridden in derived classes to render specific types of grids.

DrawHorizontalLines(Graphics, Pen, RectangleF)

Draws the horizontal lines inside rectangle.

Declaration

protected void DrawHorizontalLines(Graphics gfx, Pen penLine, RectangleF rectClip)

Parameters

Type	Name	Description
System.Drawing.Graphics	gfx	Graphics to draw on.
System.Drawing.Pen	penLine	The pen line.
System.Drawing.RectangleF	rectClip	The graphics clip rectangle.

DrawLineGrid(Graphics, RectangleF)

Renders the grid onto a specified System.Drawing.Graphics object as lines.

Declaration

protected virtual void DrawLineGrid(Graphics grfx, RectangleF rectGridBounds)

Parameters

Type	Name	Description
System.Drawing.Graphics	grfx	Drawing context object.
System.Drawing.RectangleF	rectGridBounds	The grid bounds.

DrawPointGrid(Graphics, RectangleF)

Renders the grid onto a specified System.Drawing.Graphics object.

Declaration

public virtual void DrawPointGrid(Graphics grfx, RectangleF rectGridBounds)

Parameters

Type	Name	Description
System.Drawing.Graphics	grfx	Drawing context object.
System.Drawing.RectangleF	rectGridBounds	Visible grid bounds.

Remarks

Sets pixel values directly on the view's drawing surface.

DrawPoints(Graphics, RectangleF)

Draws the points inside rectangle.

Declaration

protected void DrawPoints(Graphics gfx, RectangleF rectClip)

Parameters

Type	Name	Description
System.Drawing.Graphics	gfx	Graphics to draw on.
System.Drawing.RectangleF	rectClip	The clip rectangle.

DrawVerticalLines(Graphics, Pen, RectangleF)

Draws the vertical lines inside rectangle.

Declaration

protected void DrawVerticalLines(Graphics gfx, Pen penLine, RectangleF rectClip)

Parameters

Type	Name	Description
System.Drawing.Graphics	gfx	Graphics to draw on.
System.Drawing.Pen	penLine	The pen line.
System.Drawing.RectangleF	rectClip	The graphics clip rectangle.

GetNearestGridPoint(PointF)

Takes a device point and returns the point on the grid that is nearest to that point.

Declaration

public PointF GetNearestGridPoint(PointF ptScene)

Parameters

Type	Name	Description
System.Drawing.PointF	ptScene	Input point.

Returns

Type	Description
System.Drawing.PointF	Point on the grid in client coordinates.

Remarks

Points are in device coordinates. This method is used to when the snap to grid feature is enabled.

SnapToGrid

GetNearestGridPoint(PointF, Boolean)

Declaration

public PointF GetNearestGridPoint(PointF ptScene, bool excludeOrigin)

Parameters

Type	Name	Description
System.Drawing.PointF	ptScene
System.Boolean	excludeOrigin

Returns

Type
System.Drawing.PointF

GetNearestGridPoint(PointF, Int32)

Declaration

public PointF GetNearestGridPoint(PointF ptScene, int rulerHeight)

Parameters

Type	Name	Description
System.Drawing.PointF	ptScene
System.Int32	rulerHeight

Returns

Type
System.Drawing.PointF

GetNearestGridPoint(PointF, Int32, Boolean)

Declaration

public PointF GetNearestGridPoint(PointF ptScene, int rulerHeight, bool excludeOrigin)

Parameters

Type	Name	Description
System.Drawing.PointF	ptScene
System.Int32	rulerHeight
System.Boolean	excludeOrigin

Returns

Type
System.Drawing.PointF

GetObjectData(SerializationInfo, StreamingContext)

Gets the object data.

Declaration

protected override void GetObjectData(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
System.Runtime.Serialization.SerializationInfo	info	The info.
System.Runtime.Serialization.StreamingContext	context	The context.

Overrides

PropertyContainer.GetObjectData(SerializationInfo, StreamingContext)

GetPropertyContainerName()

Gets the name of the property container.

Declaration

protected override string GetPropertyContainerName()

Returns

Type	Description
System.String	The property container name.

Overrides

PropertyContainer.GetPropertyContainerName()

OnMeasureUnitsChanging(MeasureUnits, MeasureUnits)

Called when measure units changing.

Declaration

protected override void OnMeasureUnitsChanging(MeasureUnits from, MeasureUnits to)

Parameters

Type	Name	Description
MeasureUnits	from	Old value of the measure units .
MeasureUnits	to	New value of the measure units.

Overrides

PropertyContainer.OnMeasureUnitsChanging(MeasureUnits, MeasureUnits)

ResetColor()

Resets the color.

Declaration

protected void ResetColor()

ShouldSerializeColor()

Serialize the color.

Declaration

protected bool ShouldSerializeColor()

Returns

Type	Description
System.Boolean	true, if serialize the color.

Implements

IServiceReferenceHolder

IServiceReferenceProvider

IPropertyObserver

IPropertyContainer

System.ICloneable

System.Runtime.Serialization.ISerializable

System.IDisposable