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.NET Forum / Windows Forms / Design Time / January 2005DefaultValue Property and Inheritance
I had this thought regarding defaultvalue attribute for properties of controls and form inheritance. For example, I have this boolean property for a control with a supplied defaultvalue attribute of TRUE. What if this particular control is declared as protected in a base form? Down the hierarchy, the said property is altered(set to false, then true, whatever). If on a child form, its value is supposed to be TRUE, it wouldn't be serialized, therefore it will mess up the said form if its immediate parent form's setting for this property is FALSE. Any views? Yes, this is a problem in the current serialization setup. We had a discussion with Brian Pepin I believe in this newsgroup at one point concerning this issue. You may find it via google; perhaps "Pepin" and "ShouldSerialize". The only solution is to record the correct "default" values after the base class is constructed, and use those as defaults. I don't think it will be fixed as it is difficult in the general sense. Regards, Frank Hileman check out VG.net: www.vgdotnet.com Animated vector graphics system Integrated Visual Studio .NET graphics editor > I had this thought regarding defaultvalue attribute for properties of > controls and form inheritance. [quoted text clipped - 6 lines] > the said form if its immediate parent form's setting for this property is > FALSE. Any views? Thanks Frank... > Yes, this is a problem in the current serialization setup. We had a > discussion with Brian Pepin I believe in this newsgroup at one point [quoted text clipped - 22 lines] > > the said form if its immediate parent form's setting for this property is > > FALSE. Any views? Am new to newsgroups, is there a way that I can have access to attachments of archived messages? I would like to look at the addin from related post years ago... > Yes, this is a problem in the current serialization setup. We had a > discussion with Brian Pepin I believe in this newsgroup at one point [quoted text clipped - 22 lines] > > the said form if its immediate parent form's setting for this property is > > FALSE. Any views? You have to ask. They are not archived anywhere as far as I know. Remind me and maybe I can dig it up... Frank > Am new to newsgroups, is there a way that I can have access to attachments > of archived messages? > I would like to look at the addin from related post years ago... I've tried this issue once again and was surprised that VS stores the value of the setting of the immediate base class to be its default (somewhat comparing the property values for the current component against the value of an instance of its immediate base class). The DefaultValue set at the top of the inheritance tree will not be its default value down the hierarchy. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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