Home/ Questions/Q 6071599
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-23T10:03:57+00:00

This double: 16.8999999 after theDouble = Math.Round(theDouble, 1) it shows up in the debugger

  • 0

This double: 16.8999999

after theDouble = Math.Round(theDouble, 1) it shows up in the debugger as 16.9 but in the UI later on it’s NOT 16.9 but 16.899999.

Why is this so?

I am developing a WP7 application and however and whenever I round a certain value, it always shows up “derounded” in the UI. I have even tried to make one last round before assigning the array to the listbox’s itemssource. It’s really strange and I’d appreciate any help or explanation.

I have even tried to assign a value myself just before the itemssource gets set. I assign 16.89999 and round it using the above method. In the debugger I get the expected result but then in the UI I get another result, namely, 16.899999618. Help?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I have no idea but it could have something to do with how WP7 presents doubles in datacontexts. I changed the type to float and now it works perfectly. I hope someone in the same situation finds this question even though it’s pretty downvoted.

    • 0