Bruce Ng's software development blog
An archive of solutions of programming problems I have faced in my career
For SSRS line charts to display gaps in the data correctly, the data must explicitly tells that for certain timestamps there are no data in those timestamp.
If there is a gap between timestamp A and timestamp B, the line chart will only display a gap if there are table rows for timestamps between A and B that contain empty or nil values. Otherwise, it will connect the lines instead of showing gaps.
If the code in question involves concurrency, check if there is a potential for deadlocks which occurs infrequently and hard to track.
Check for other factors: network conditions, equipment quality, environment, bugs originated from OSes or third party libraries.
Add sufficient loggings to the code in case the bug appears again by detecting the bug’s behaviour, so that in the future if it appears again you will have something to track it.
Add a notification mechanism to notify you when the bug appears again, similar to previous point.
Forget about it for a while and work on other tasks, so that you can look at it from another angle later.
Have another person with fresh eyes to look at the code and give new ideas on what might cause it.
Pass many different inputs to the code with many edge cases to see if the bug can be reproduced, might be very time consuming and not effective, but can try.
If it doesn’t appear again and you have no idea how to reproduce it, maybe it’s okay to just ignore it for the time being.
I faced this exception while trying to generate a xml document programmatically in C# using XmlDocument and XmlElement.
I didn’t know what was going on, and then I figured out that I was adding multiple elements to the XmlDocument. To solve this, add a “root” element to XmlDocument and then add multiple child elements within the root. The XmlDocument is supposed to only contain 1 child element as expected in XML.
Follow the SO answer: http://stackoverflow.com/a/38757007/5539403
To fix Intellisense suddenly stops working in SQL Management Studio, refresh the local cache by pressing Ctrl-Shift-R or by going to Edit -> Intellisense -> Refresh Local Cache.
Try sencha app refresh, if still doesn’t work, try sencha app build development.
Make sure that in views, for spacer, use at least a space and not an empty string. It’s an Ext Js 6.2 bug.
This article is useful: http://docs.sencha.com/extjs/6.2.0/guides/core_concepts/memory_management.html
Refer to the article at http://www.allaboutmssql.com/2013/08/ssrs-how-to-display-table-after.html
Follow the SO answer: http://stackoverflow.com/a/35859572/5539403
In Android Studio go to File -> Settings -> Build, Execution, Deployment -> Build Tools -> Gradle
Check the ‘Offline work’ under ‘Global Gradle settings’
However, if it Gradle needs to get libraries from the Internet, turn off ‘Offline work’ and run it for first time, then turn the option on to speed up build process.