/// <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>(QueryStringParamNames paramName)
{
if (HttpContext.Current.Request.QueryString[paramName.Description()] != null)
{
return((T)Convert.ChangeType(HttpContext.Current.Request.QueryString[paramName.Description()], typeof(T)));
}
else
{
throw new ShiptalkCommon.ShiptalkException("Attempt to access value in QueryString when not present. Param: " + paramName.Description(), false);
}
}
/// <summary>
/// Use for non-Value types such as strings.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="paramName"></param>
/// <returns></returns>
private static T GetNullableReferenceTypeValue <T>(QueryStringParamNames paramName) where T : class, IConvertible
{
if (HttpContext.Current.Request.QueryString[paramName.Description()] != null)
{
//return (T)HttpContext.Current.Request.QueryString[paramName.Description()];
return((T)Convert.ChangeType(HttpContext.Current.Request.QueryString[paramName.Description()], typeof(T)));
}
else
{
return(null);
}
}
