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What is a NullReferenceException, and how do I fix it?
... case:
string GetCategory(Book b)
{
if (b == null)
return "Unknown";
return b.Category;
}
Explicitly check for null from method calls and throw a custom exception.
You can also throw a custom exception, only to catch it in the calling code:
string GetCategory(string bookTitle)
{
...
Programmatically generate video or animated GIF in Python?
... it has problems with PIL/Pillow and is not actively maintained (I should know, because I am the author).
Instead, please use imageio, which was developed to solve this problem and more, and is intended to stay.
Quick and dirty solution:
import imageio
images = []
for filename in filenames:
i...
How to set IntelliJ IDEA Project SDK
...f the window.
5) select JDK (I have to use keyboard to select it do not know why).
select the home directory for your jdk installation.
should be good to go.
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What is the purpose of double curly braces in React's JSX syntax?
...ing in Boulder? Lets grab coffee or lunch sometime... it would be good to know someone with the inside scoop on React since we're just starting a big project with it.
– B Robster
Mar 26 '14 at 23:52
...
Entity Framework - Invalid Column Name '*_ID"
...on this answer, because it was most accurate to my situation (but I didnt know it until after I figured my problem out). If you have some error related to OtherTable_ID when you are retrieving Table, go to your OtherTable model and make sure you don't have an ICollection<Table> in there. Wit...
Importing from a relative path in Python
...imports, where you can avoid doing anything hacky. With this method, you know you are getting a relative import rather than an absolute import. The '..' means, go to the directory above me:
from ..Common import Common
As a caveat, this will only work if you run your python as a module, from out...
How do I obtain crash-data from my Android application?
... HttpPost(url); must be in an async task (or handler... a separate thread) now if you are targeting Honeycomb or later
– Bryan Denny
Oct 13 '11 at 0:59
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Bad class file magic or version
I already know that question has been already asked very often and answers, but no one of the answers i found fixed my problem.
...
The model used to open the store is incompatible with the one used to create the store
...s that.. cant help.. nywaz, here goes my up vote.. the best i can do right now to appreciate your guidelines.. thanks a lot for the help mate.!!
– Apple_iOS0304
Oct 6 '12 at 15:20
...
Should private helper methods be static if they can be static
...ect. My IDE will also show calls to static methods in italics, so I will know the method is static without looking the signature.
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