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ViewModelbase.cs

Language: C#
Last Modified: 2020-06-27 1:58:37 PM UTC
File Size: 1758 bytes
http://www.penguinstew.ca/example/MVVMbase/ViewModelBase/ViewModelbase.cs
���usingSystem;
usingSystemCollectionsGeneric;
usingSystemLinq;
usingSystemText;
usingSystemComponentModel;
namespacePenguinMVVMBaseViewModelBase
{
publicclassViewModelBase:INotifyPropertyChanged
{
regionINotifyPropertyChanged
<summary>
INotifyPropertyChangedPropertyChangedeventthrownwhenapropertyisupdated
<summary>
publiceventPropertyChangedEventHandlerPropertyChanged;
<summary>
RaisesaPropertyChangedeventforthegivenproperty
<summary>
<paramname=propertyName>Thenameofthepropertybeingupdated<param>
protectedboolSetProperty<T>refTpropertyBackTvalueStringpropertyName
{
Dontupdateifvalueisthesame
ifpropertyBack=nullpropertyBackEqualsvalue
{
returnfalse;
}
propertyBack=value;
RaisePropertyChangedpropertyName;
returntrue;
}
protectedvoidRaisePropertyChangedStringpropertyName
{
TestpropertyNametomakesureitsavalidproperty
ifTypeDescriptorGetPropertiesthis[propertyName]==null
{
stringmsg=Invalidpropertyname:propertyName;
thrownewArgumentExceptionmsg;
}
Notifypropertychanged
PropertyChangedEventHandlerhandler=PropertyChanged;
ifhandler=null
{
handlerthisnewPropertyChangedEventArgspropertyName;
}
}
endregion
}
}
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