Can I install and use versions 1.x and 2.x of the XtraGrid simultaneously?

XtraGrid 1.x and XtraGrid 2.x cannot work together, because both installations copy their assemblies to the same folder, so that files get overwritten. Moreover, component designers refer to assemblies by name ignoring version numbers.

We advise that you create a couple of batch files to switch between XtraGrid 1 and 2. The batch files should
1. Remove the installed DevExpress assemblies from the Assembly Cache and the \Common Files\DevExpress\.NET\ directory,
2. Copy the assemblies of the desired XtraGrid version from an archive or a safe folder to \Common Files\DevExpress\.NET\.
3. Add the new assemblies from \Common Files\DevExpress\.NET\ to the Assembly cache.

You can do the following:
1. Install XtraGrid 1 at first and make a safe copy of the \Common Files\DevExpress\.NET\ directory.
2. Manually clear the Assembly Cache and \Common Files\DevExpress\.NET\.
3. Install XtraGrid 2 and make another safe copy of \Common Files\DevExpress\.NET\ with the XtraGrid 2 assemblies.
4. Create batch files as described above.
Hopefully, this solution will suit you.

See Also:
Upgrading XtraGrid 1.x application to XtraGrid 2.x walkthrough