Paul Abbott questions

Paul Abbott answers

• Append to a Text File (Not Overwrite!)
• ORM and Database Constraints
• Filter XDocument more efficiently
• Prevent a TFS task (work item) from being "Resolved"
• SQL average multiple columns for each row with nulls
• Windows Phone 8.1 WinRT memory leak with ObservableCollection
• How to get the maximum length of a string from an EDMX model in code?
• In HTML5 why does the <img> tag need a closing slash or a closing tag?
• Find out current database name
• Denormalizing for sanity or performance?