GraphLinksModelLinkData

StockSharp.Xaml.Diagram.GXDiagram.Model

A simple representation of link data that supports property change notification, copying, and undo via the INotifyPropertyChanged, ICloneable, and IChangeDataValue interfaces.

实现: INotifyPropertyChanged, IChangeDataValue, ICloneable

构造函数

GraphLinksModelLinkData()

The default constructor produces an empty object with no references to nodes.

GraphLinksModelLinkData(T, T, T, T)

This constructor initializes the From and To properties.

from: a node key identifying the node data from which the link comes
fromport: an optional value identifying which port on the "from" node the link is connected to
to: a node key identify the node data to which the link goes
toport: an optional value identifying which port on the "to" node the link is connected to

GraphLinksModelLinkData(T, T)

This constructor initializes the From and To properties.

from
to

属性

Category : string

Gets or sets a String that names the category to which the link data belongs.

From : T

Gets or sets the key value of the node from which this link comes.

FromPort : T

Gets or sets the optional parameter information for the From node's port.

LabelNode : T

Gets or sets the key value of the node which is on this link acting as if it were a label.

Points : IEnumerable<Point>

Gets or sets a collection of Points used to define the path of the link.

Text : string

Gets or sets a string that can be used for a text label on a link.

To : T

Gets or sets the key value of the node to which this link goes.

ToPort : T

Gets or sets the optional parameter information for the To node's port.

方法

ChangeDataValue(ModelChangedEventArgs, bool)

This method implements the IChangeDataValue interface, used to perform state changes for undo and redo.

e: an edit describing the change to be performed
undo: true if undoing; false if redoing

Clone() : object

Create a copy of this data; this implements the ICloneable interface.

ConvertNodeKeyToString(T) : string

Convert a key value to a string.

key

返回值: a String from which String) can recover the original key value

ConvertPortKeyToString(T) : string

Convert a key value to a string.

key

返回值: a String from which String) can recover the original key value

ConvertStringToNodeKey(string) : T

Convert a string to a key value.

s

返回值: a

ConvertStringToPortKey(string) : T

Convert a string to a key value.

s

返回值: a

LoadFromXElement(XElement)

Initialize this link data with data held in a Linq for XML XElement.

e: the XElement

MakeXElement(XName) : XElement

Constructs a Linq for XML XElement holding the data of this link.

n: the name of the new XElement

返回值: an initialized XElement

OnPropertyChanged(ModelChangedEventArgs)

Raise the PropertyChanged event.

e

RaisePropertyChanged(string, object, object)

Call this method from property setters to raise the PropertyChanged event.

pname: the property name
oldval: the value before the property was set
newval: the new value

ToString() : string

For debugging, use the From and To properties as this object's default text rendering.

返回值: a String like "Node1 --> Node2"

事件

PropertyChanged : PropertyChangedEventHandler

This event implements the INotifyPropertyChanged interface, so that both the model and the dependency object system can be informed of changes to property values.