Problematically set property to be readonly in BusinessBase class

Problematically set property to be readonly in BusinessBase class

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Tatjana posted on Friday, January 03, 2014

I have a property created like this in a BusinessBase class:

    private static PropertyInfo<string> ABCProperty = RegisterProperty(typeof(ObjectA), new PropertyInfo<string>("ABC"));

    public string ABC
      get { return GetProperty(ABCProperty); }
      internal set { SetProperty(ABCProperty, value); } 

The above makes the property to be read-only in a form (cannot be changed by a user).

Is it possible, based on some global setting's value that I'd like to define in my application, to make this property writable?  With other words, ABCProperty's value  could be changed by a user, if setting's variable is True, otherwise this property should remain read-only.  If it is not possible, what would be other alternative way to achieve this?

Thank you kindly,



JonnyBee replied on Saturday, January 04, 2014


The recommended solution is to use AuthorizationRules to determine wheter a user has acces to Read/Write property value. CSLA comes with standard authorization rules for IsInRole and IsNotInRole but you can easily create yourown rules and test whichever way YOU want to dermine whether user is allowed access or not. 

Another possible alternative is to override CanWriteProperty and check whether a "global" flag is set or not.  

Tatjana replied on Tuesday, January 07, 2014

Thank you, JonnyBee.  That did the trick.  

skagen00 replied on Saturday, January 04, 2014

Typically we would use canwriteproperty and return a true or false based on whether the current user, as identified by their role permissions .. should be able to edit the value.

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