WPF Prism's delegatecommand not refreshing
- by gkar
I am building wpf edit form, that has two buttons, BeginEdit and Save
And the form is bound to ViewModel that inherits from Prism's NotificationObject.
There is a property called IsReadOnly
And there are two commands that are Prism's DelegateCommands
BeginEdit command and save command
The code is here
private DelegateCommand _beginEdit;
public DelegateCommand BeginEdit
{
get
{
return _beginEdit ?? (_beginEdit = new DelegateCommand(() => this.IsReadOnly = false
, () => IsReadOnly));
}
}
private bool _isReadOnly;
public bool IsReadOnly
{
get { return _isReadOnly; }
set
{
_isReadOnly = value;
RaisePropertyChanged("IsReadOnly");
}
}
private DelegateCommand _saveEdit;
public DelegateCommand SaveEdit
{
get
{
return _saveEdit ?? (_saveEdit = new DelegateCommand(() => this.IsReadOnly = true
, () => !IsReadOnly));
}
}
So, as you see, the command will set IsReadOnly property to true or false, and CanExecute should get its value from the same property as well.
It works when I start the form.
But after I press BeginEdit, the buttons stays as the same, and the canExecute is not reflecting the new value of IsReadOnly
