<p>I have an <code>.xsd</code>, <code>.vb</code>, <code>.xsc</code>, and <code>.xss</code> file for a dataset in Visual&nbsp;Studio&nbsp;2008 that I copied over from another Visual Studio project, however I need to make changes to the dataset. Thus I got into the XSD file, created new columns, deleted ones that aren't needed, etc., etc.  However I realized when I attempted to use the new dataset I did not have the Visual Basic code behind the scenes. This code is typically found in <code>dataset.designer.vb</code>. When I copied the old one over of course it was no longer valid since columns changed.</p>

<p>How I can force Visual&nbsp;Studio&nbsp;2008 to use a <code>.xsd</code> file and to have it create/update its designer code?</p>

Unfortunately, this is in the gray area of things things that I can do when I need to, but I haven't needed to do enough to impart the knowledge to others.
All I know is that
```
*.designer.vb
```
means that this code was generated by Visual Studio, and if it generated it once it can do it again. Additionally, the very few times (maybe twice, both in Visual Studio 2005) that I have done this, it seemed like it was as simple as adding the  *.xsd file to Solution Explorer. If that alone doesn't do it, try showing all files or right/double clicking on the *.xsd.