MVC map to nullable bool in model

Posted by fearofawhackplanet on Stack Overflow See other posts from Stack Overflow or by fearofawhackplanet
Published on 2010-06-14T08:52:05Z Indexed on 2010/06/16 11:52 UTC
Read the original article Hit count: 776

Filed under:

c#

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databinding

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asp.net-mvc-2

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viewmodel

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nullable-types

With a view model containing the field:

public bool? IsDefault { get; set; }

I get an error when trying to map in the view:

<%= Html.CheckBoxFor(model => model.IsDefault) %>

Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?)

I've tried casting, and using .Value and neither worked.

Note the behaviour I would like is that submitting the form should set IsDefault in the model to true or false. A value of null simply means that the model has not been populated.

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