Class ChartAnnotation
Namespace: Syncfusion.SfChart.iOS
Assembly: Syncfusion.SFChart.iOS.dll
Syntax
public abstract class ChartAnnotation : ObjectConstructors
ChartAnnotation()
Declaration
protected ChartAnnotation()Properties
CoordinateUnit
Gets or sets the ChartCoordinateUnit enum that represents whether annotation is draw on pixel co-ordinates or axis co-ordinates.
Declaration
public ChartCoordinateUnit CoordinateUnit { get; set; }Property Value
| Type | Description |
|---|---|
| ChartCoordinateUnit | The co-ordinate point for Annotation. |
Visible
Gets or sets a value indicating whether the annotation is visible in the chart.
Declaration
public bool Visible { get; set; }Property Value
| Type | Description |
|---|---|
| System.Boolean |
X1
Gets or sets the date time or double that represents x1 position of annotation.
Declaration
public object X1 { get; set; }Property Value
| Type | Description |
|---|---|
| System.Object | The x1. |
XAxisName
Gets or sets the string value that represents name of the x axis.
Declaration
public string XAxisName { get; set; }Property Value
| Type | Description |
|---|---|
| System.String | The name of the X Axis. |
Y1
Gets or sets the double that represents y1 position of annotation.
Declaration
public double Y1 { get; set; }Property Value
| Type | Description |
|---|---|
| System.Double | The y1. |
YAxisName
Gets or sets the string value that represents name of the y axis.
Declaration
public string YAxisName { get; set; }Property Value
| Type | Description |
|---|---|
| System.String | The name of the Y Axis. |
Methods
Draw(CGContext)
Method used to draw annotation in chart area.
Declaration
protected virtual void Draw(CGContext context)Parameters
| Type | Name | Description |
|---|---|---|
| CoreGraphics.CGContext | context | The context. |
GetView()
Gets the view for annotation.
Declaration
protected virtual ChartAnnotationView GetView()Returns
| Type | Description |
|---|---|
| ChartAnnotationView | The view. |
Remarks
This is not applicable for ViewAnnotation Class
TouchBegan(NSSet, UIEvent)
Tells the receiver when the finger touches annotation.
Declaration
protected virtual void TouchBegan(NSSet touches, UIEvent uiEvent)Parameters
| Type | Name | Description |
|---|---|---|
| Foundation.NSSet | touches | A set of UITouch instances that represent the touches for the starting phase of the event represented by event. |
| UIKit.UIEvent | uiEvent | An object representing the event to which the touches belong. |
TouchCancelled(NSSet, UIEvent)
Tells the receiver when a touch is cancelled in annotation.
Declaration
protected virtual void TouchCancelled(NSSet touches, UIEvent uiEvent)Parameters
| Type | Name | Description |
|---|---|---|
| Foundation.NSSet | touches | A set of UITouch instances that represent the touches for the ending phase of the event represented by event. |
| UIKit.UIEvent | uiEvent | An object representing the event to which the touches belong. |
TouchEnded(NSSet, UIEvent)
Tells the receiver when the finger releases touch in annotation.
Declaration
protected virtual void TouchEnded(NSSet touches, UIEvent uiEvent)Parameters
| Type | Name | Description |
|---|---|---|
| Foundation.NSSet | touches | A set of UITouch instances that represent the touches for the ending phase of the event represented by event. |
| UIKit.UIEvent | uiEvent | An object representing the event to which the touches belong. |
TouchMove(NSSet, UIEvent)
Tells the receiver when the finger associates with an event move within an annotation.
Declaration
protected virtual void TouchMove(NSSet touches, UIEvent uiEvent)Parameters
| Type | Name | Description |
|---|---|---|
| Foundation.NSSet | touches | A set of UITouch instances that represent the touches that are moving during the event represented by event. |
| UIKit.UIEvent | uiEvent | An object representing the event to which the touches belong |