Class ChangeTrackingObject
This class allows to determine whether there are any changes to it's properties.
Namespace: Sartorius.SAF.Infrastructure
Assembly: Sartorius.SAF.dll
Syntax
public abstract class ChangeTrackingObject : ObservableObject, INotifyPropertyChanged, IDataErrorInfo, INotifyDataErrorInfo, INotifyDataPropertyChangedProperties
View SourceHasChanges
Gets a value indicating whether this instance was changed.
Declaration
public bool HasChanges { get; }Property Value
| Type | Description |
|---|---|
| bool |
Methods
View SourceAcceptChanges()
Sets HasChanges to false.
Declaration
protected virtual void AcceptChanges()Cascade()
Aggregates calls to CascadeChanges() and CascadeErrors().
Declaration
protected IDisposable Cascade()Returns
| Type | Description |
|---|---|
| IDisposable | An IDisposable that ends cascading when it's Dispose() method is called. |
Exceptions
| Type | Condition |
|---|---|
| InvalidOperationException | Thrown when this instance is already cascading. |
See Also
View SourceCascadeChanges()
Cascades the HasChanges property from child properties of type ChangeTrackingObject.
Declaration
protected IDisposable CascadeChanges()Returns
| Type | Description |
|---|---|
| IDisposable | An IDisposable that ends cascading when it's Dispose() method is called. |
Exceptions
| Type | Condition |
|---|---|
| InvalidOperationException | Thrown when this instance is already cascading. |
OnDataPropertyChanged(string)
Called when a data property is changed.
Declaration
protected override void OnDataPropertyChanged(string propertyName)Parameters
| Type | Name | Description |
|---|---|---|
| string | propertyName | The name of the property. |
Overrides
See Also
View SourceSetValue<T>(string, ref T, T, Action<T>, Action<T>, IEqualityComparer<T>)
Sets the given value if it is different to the given field using the provided IEqualityComparer<T>.
This will trigger a validation raise PropertyChanged if field and value are not equal.
Declaration
protected override void SetValue<T>(string propertyName, ref T field, T value, Action<T> beforeChange, Action<T> afterChange, IEqualityComparer<T> comparer)Parameters
| Type | Name | Description |
|---|---|---|
| string | propertyName | The name of the property being changed. |
| T | field | The field which should hold the property value. |
| T | value | The new value. |
| Action<T> | beforeChange | An action executed before the |
| Action<T> | afterChange | An action executed after the |
| IEqualityComparer<T> | comparer | The IEqualityComparer<T> used to compare the field and the new value. |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the property value. |