DiagramModel

DataFormat

public string DataFormat { get; set; }

value = diagramModel.DataFormat
diagramModel.DataFormat = value

Gets or sets the format of this model's data.

HasUndoManager

public bool HasUndoManager { get; }

value = diagramModel.HasUndoManager

Whether undo manager exists. Returns false if the manager is suspended.

Initializing

protected bool Initializing { get; set; }

value = diagramModel.Initializing
diagramModel.Initializing = value

Gets or sets whether the model is being constructed or re-constructed.

IsChangingModel

public bool IsChangingModel { get; protected set; }

value = diagramModel.IsChangingModel
diagramModel.IsChangingModel = value

This property is true during a call to Boolean), indicating a change happening due to an undo or a redo.

IsInTransaction

public bool IsInTransaction { get; }

value = diagramModel.IsInTransaction

This property is true after a String) and before a corresponding String) or RollbackTransaction.

IsModified

public bool IsModified { get; set; }

value = diagramModel.IsModified
diagramModel.IsModified = value

Gets or sets whether this model is considered changed from an earlier state.

IsUndoManagerSuspended

public bool IsUndoManagerSuspended { get; set; }

value = diagramModel.IsUndoManagerSuspended
diagramModel.IsUndoManagerSuspended = value

Undo manager is suspended if this property is set to true.

Modifiable

public bool Modifiable { get; set; }

value = diagramModel.Modifiable
diagramModel.Modifiable = value

Gets or sets whether various model-changing methods are enabled.

Name

public string Name { get; set; }

value = diagramModel.Name
diagramModel.Name = value

A name for this model.

SkipsUndoManager

public bool SkipsUndoManager { get; set; }

value = diagramModel.SkipsUndoManager
diagramModel.SkipsUndoManager = value

Gets or sets a flag that tells ModelChangedEventArgs) whether it should notify any UndoManager that a change has occurred.

UndoManager

public UndoManager UndoManager { get; set; }

value = diagramModel.UndoManager
diagramModel.UndoManager = value

Gets or sets the UndoManager for this model.

ChangeDataValue

protected virtual void ChangeDataValue(ModelChangedEventArgs e, bool undo)

diagramModel.ChangeDataValue(e, undo)

This is called during undo or redo to effect state changes to model data.

e

an edit describing the change to be performed

undo

true if undoing; false if redoing

ChangeModel

public void ChangeModel(ModelChangedEventArgs e, bool undo)

diagramModel.ChangeModel(e, undo)

This is called during an Undo or a Redo to actually make state changes to this model or to this model's data.

e

an edit describing the change to be performed

undo

true if undoing; false if redoing

ChangeModelValue

protected virtual void ChangeModelValue(ModelChangedEventArgs e, bool undo)

diagramModel.ChangeModelValue(e, undo)

This is called during undo or redo to effect state changes to this model.

e

an edit describing the change to be performed

undo

true if undoing; false if redoing

CommitTransaction

public bool CommitTransaction(string tname)

result = diagramModel.CommitTransaction(tname)

Call the UndoManager's CommitTransaction method.

tname

a String describing the transaction

Returns: the value of the call to CommitTransaction

OnChanged

protected virtual void OnChanged(ModelChangedEventArgs e)

diagramModel.OnChanged(e)

Raises the Changed event.

e

an edit describing the change that just happened

RaiseChanged

public void RaiseChanged(ModelChangedEventArgs e)

diagramModel.RaiseChanged(e)

Raise a Changed event, given a ModelChangedEventArgs.

e

an edit describing the change that just happened

RaisePropertyChanged

public void RaisePropertyChanged(string propname, object data, object oldval, object oldparam, object newval, object newparam)

diagramModel.RaisePropertyChanged(propname, data, oldval, oldparam, newval, newparam)

Raise a Changed event for a property change.

propname

a property name

data

the object whose property has just changed

oldval

the previous value for the property

oldparam

additional information for the old value

newval

the new value for the property

newparam

additional information for the new value

RaisePropertyChanged

public void RaisePropertyChanged(string propname, object data, object oldval, object newval)

diagramModel.RaisePropertyChanged(propname, data, oldval, newval)

Raise a Changed event, given before and after values for a particular property.

propname

a property name

data

the object whose property has just changed

oldval

the previous value for the property

newval

the new value for the property

Reinitialize

protected virtual void Reinitialize()

diagramModel.Reinitialize()

Reset the fields that should not be shared from a copy created by MemberwiseClone.

RollbackTransaction

public bool RollbackTransaction()

result = diagramModel.RollbackTransaction()

Call the UndoManager's RollbackTransaction method.

Returns: the value of the call to RollbackTransaction

StartTransaction

public bool StartTransaction(string tname)

result = diagramModel.StartTransaction(tname)

Call the UndoManager's StartTransaction method.

tname

a String describing the transaction

Returns: the value of the call to StartTransaction

Changed

public event EventHandler<ModelChangedEventArgs> Changed

diagramModel.Changed += handler

The Changed event is raised whenever the model is modified.