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I've wrote  IsNullOrDefault generic helper function
    public  static bool IsNullOrDefault<T>(this Nullable<T> param) where T : struct
        T deflt = default(T);
        if (!param.HasValue)
            return true;
        else if (param.Value.Equals(deflt))
            return true;
        return false;
, but then realized that there is more short implementation on stackoverflow submitted by Josh
public static bool IsNullOrDefault<T>(this Nullable<T> value) where T : struct 
return default(T).Equals( value.GetValueOrDefault() ); 
public static bool IsValue<T>(this Nullable<T> value, T valueToCheck) where T : struct 
return valueToCheck.Equals((value ?? valueToCheck)); 

Posted on Friday, June 11, 2010 6:42 PM .Net Framework | Back to top

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