I have a culture/locale problem with the ultrawebgrid. I have configured the Format property so that the values in the grid should have thousand separators and 2 decimals. Since I live in sweden I want it in this format: 1 232 232,33. I have configured both the web browser and Sharepoint (wich this site is built on) to have swedish as locale. And everything works fine until I start editing values, manually from edit mode or through a javascript. Those numbers that have been edited has a completely different format: 123.2232,33. What the hell is happening here? What locale is that? Is there a way to force the edited values into a swedish format?