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Created November 30, 2012 12:15
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GetValueSafe extension method
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gistfile1.cs
public static TResult GetValueSafe<TInstance, TResult>(this TInstance instance, Func<TInstance, TResult> accessor, TResult defaultValue = default(TResult))
where TInstance : class
{
return instance != null ? accessor(instance) : defaultValue;
}
usage:
someNullableObject.GetValueSafe(p => p.SomeProperty)
or
someNullableObject.GetValueSafe(p => p.SomeProperty, string.Empty)
@mausch
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mausch commented Nov 30, 2012

You might want to take a look at the Maybe monad, which generalizes that and adds many other operations, while also being safer since it wraps the value in an explicit option type. Some examples in https://github.com/fsharp/fsharpx/blob/master/tests/FSharpx.CSharpTests/OptionTests.cs

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