MVC Wrappers cause double AJAX postback in debug mode using Ajax.Beginform()

[Andrew]

For anybody who finds this problem, the fix is to add the following line to the bundleconfig.cs file:

bundles.IgnoreList.Ignore("*.unobtrusive-ajax.min.js", OptimizationMode.WhenDisabled);

This will prevent the unobtrusive ajax script from loading twice (i.e. the minified and non-minified) in debug mode, which is what causes the double postback.

Alternatively, just remove the non minified script from the project (this obviously has implications for debugging, if you're inclined to debug the scripts included in the project template).

Telerik - this ought to be included in your how-to guide.

[Brian]

Holy cow, been beating my head up against a wall for a couple hours over this.  Finally found this post.  Thanks!!

[Sebastian]

Hello guys,

Thank you for the feedback. I notified our documentation writers and this info will be added to the MVC troubleshooting help topic with the next help update.

Best regards,
Sebastian
Telerik