Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Your current code will say whether it's <em>exactly</em> "raining and thundery". To find out whether it's "raining and thundery and possibly something else" you need:</p> <pre><code>if ((currentWeather.Type &amp; _badWeatherTypes) == _badWeatherTypes) </code></pre> <p>To find out whether it's "raining <em>or</em> thundery, and possibly something else" you need:</p> <pre><code>if ((currentWeather.Type &amp; _badWeatherTypes) != 0) </code></pre> <p>EDIT (for completeness):</p> <p>It would be good to use the <code>FlagsAttribute</code>, i.e. decorate the type with <code>[Flags]</code>. This is not necessary for the sake of this bitwise logic, but affects how <code>ToString()</code> behaves. The C# compiler ignores this attribute (at least at the moment; the C# 3.0 spec doesn't mention it) but it's generally a good idea for enums which are effectively flags, and it documents the intended use of the type. At the same time, the convention is that when you use flags, you pluralise the enum name - so you'd change it to <code>WeatherTypes</code> (because any actual value is effectively 0 or more weather types).</p> <p>It would also be worth thinking about what "Sunny" really means. It's currently got a value of 0, which means it's the absence of everything else; you couldn't have it sunny and raining at the same time (which is physically possible, of course). Please don't write code to prohibit rainbows! ;) On the other hand, if in your real use case you genuinely want a value which means "the absence of all other values" then you're fine.</p>
    singulars
    1. This table or related slice is empty.
    1. PODetermining if enum value is in list (C#)
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USJon Skeet
    1. USJon Skeet
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PODetermining if enum value is in list (C#)
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO[Flags] does seem like the way to go here.
      singulars
      1. PO
      1. USMark Bessey
    2. COWell, it's definitely a good thing to do - but it's entirely orthogonal to the actual question. It will neither help nor hinder the bitwise logic.
      singulars
      1. PO
      1. USJon Skeet
    3. COYou were correct about "Sunny" I needed to change it. Thanks for all the help everyone.
      singulars
      1. PO
      1. USNathan Koop
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload