I\'m trying to take care with every possible error when a property gets its value through a Binding (MVVM) like bein开发者_运维问答g out of a given range.
Is there a preferred practice to do Data Validation from within your ViewModel? Looking into it some people seem to prefer IDataErrorInfo and some prefer to roll out their own validation frameworks (
Hello i have 3 questions about MVVM Model. Isn\'t there any way to bypass that redundant PropertyChanged(\"PropName\");
Getting started with all this MVVM stuff, I was following this post by Josh Smith that talks about an approach to validation while using MVVM. The example is simple, and I began to wonder how I would
It appears someone else is having this issue: Validation.HasError does not trigger again if new error comes in while already true
I\'ve an MVVM application implementing IDataErrorInfo using version 3.5. I want to try and target 4.0 so have amended the Target Framework setting and changed a few bits around (BitmapFrames and the l
my business layer uses an abstract base class called DomainObject that implements IDataErrorInfo to offer validation-binding for WPF.
MainWindow() and GetXmlData() work fine and display the xmlfile on gridview. But when I include the XmlNode :IDataErrorInfo class, it stops working.
So I have a WPF DataGrid, which is bound to an ObservableCollection. The collection has validation on its members, through IDataErrorInfo. If I edit a cell in a way so as to be invalid, and then tab a
Hi I make validation on error in my model class. public class CurrentUser:IDataErrorInfo, INotifyPropertyChanged
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