I'm using an edmx database to place data onto a map which until this point has been working absolutely fine. Problem is, I realised I needed another column. So I went into SQL Server Management Studio and added that column. After some looking into, i thought that going into the edmx and 'refreshing' the tables would enable to get data from the new columns. However, if i try and do that, even just try and show the value in an alert, my map ceases to exist... this is kind of a problem. Am i doing something wrong???
You can Update your EDMX no need to delete and re-adding EDMX :
-> Right Click on EDMX -> Select Click Open -> Right Click On Page -> Select Update Model From Database EDMX -> Save your changes Hope This will hell you !!