Reference the namespace in the code.

Yes, it's a good idea to separate things this way.

>I created a folder (in the application folder of VS 2012) Data_sets (so my directory tree is now App_Name\Data_Sets. Then I copy dataset file MyDataSet.xsd to the folder Data_Sets. Then I add an existing item (Data Set) to the Project. So in the VS tree I see the folder Data_sets and the dataset MyDataSet. But how do I use this dataset in the code? For example, the following does not work:
>
>

>MyDataSet dstMyData;
>// VS does not find MyDataSet
>

>
>How do I refer in the code that the dataset is not in the application root folder but in the sub-folder?