/// <summary>
/// This method will return null if value is not found. Does not throw exception.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="paramName"></param>
/// <returns></returns>
private static T GetNullableReferenceTypeValue <T>(ConfigUtilKeys paramName) where T : class, IConvertible
{
string val = GetVal(paramName.Description()) + string.Empty;
if (val != string.Empty)
{
return((T)Convert.ChangeType(val, typeof(T)));
}
else
{
return(null);
}
}
/// <summary>
/// Use for non-nullable values. If the value is null, exception is thrown.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="paramName"></param>
/// <returns></returns>
private static T GetNonNullableParamValue <T>(ConfigUtilKeys paramName)
{
string val = GetVal(paramName.Description()) + string.Empty;
if (val != string.Empty)
{
return((T)Convert.ChangeType(val, typeof(T)));
}
else
{
throw new ConfigurationErrorsException(
string.Format("Application Setting \"{0}\" is required for the application to function correctly.", paramName.Description()));
}
}