public static bool TryGet <T>(this IParametersSource parameters, string name, out T result)
{
object resultObject;
if (parameters == null || !parameters.TryGet(name, typeof(T), out resultObject))
{
result = default(T);
return(false);
}
result = (T)resultObject;
return(true);
}
public static T Get <T>(this IParametersSource parameters, string name)
{
if (parameters == null)
{
throw new InvalidOperationException("parameters is not set");
}
object result;
if (!parameters.TryGet(name, typeof(T), out result))
{
throw new InvalidOperationException(string.Format("can't get parameter [{0}]", name));
}
return((T)result);
}
public static T GetOrDefault <T>(this IParametersSource parameters, string name, T defaultValue = default(T))
{
T result;
return(parameters.TryGet(name, out result) ? result : defaultValue);
}