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ASP.NET: Session.SessionID changes between requests
... is the reason
When using cookie-based session state, ASP.NET does not allocate storage for session data until the Session object is used. As a result, a new session ID is generated for each page request until the session object is accessed. If your application requires a static session ID for t...
What is the difference between Strategy design pattern and State design pattern?
...ce to the context object that contains them. Strategies do not.
States are allowed to replace themselves (IE: to change the state of the context object to something else), while Strategies are not.
Strategies are passed to the context object as parameters, while States are created by the context obj...
TSQL Pivot without aggregate function
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that actually wont work if you have 2 costumers with the same first name
– Leonardo
Feb 20 '15 at 18:38
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Get the device width in javascript
...th property.
Sometimes it's also useful to use window.innerWidth (not typically found on mobile devices) instead of screen width when dealing with desktop browsers where the window size is often less than the device screen size.
Typically, when dealing with mobile devices AND desktop browsers I use...
Why can't Python's raw string literals end with a single backslash?
Technically, any odd number of backslashes, as described in the documentation .
12 Answers
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jQuery get specific option tag text
All right, say I have this:
21 Answers
21
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How to center an iframe horizontally?
...
HTML:
<div id="all">
<div class="sub">div</div>
<iframe>ss</iframe>
</div>
CSS:
#all{
width:100%;
float:left;
text-align:center;
}
div.sub, iframe {
width: 100px;
height: 50px;...
Using LINQ to concatenate strings
...pport aggregates as extension methods. Using the dot-notation, one simply calls a method on an IEnumerable object.
Remember that aggregate queries are executed immediately.
More information - MSDN: Aggregate Queries
If you really want to use Aggregate use variant using StringBuilder proposed in...
How to declare or mark a Java method as deprecated?
...message in the comment could be added to @Deprecated (one spot to fix them all)...
– U. Windl
May 16 '18 at 12:12
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Maven: Failed to read artifact descriptor
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You can always try mvn -U clean install
-U forces a check for updated releases and snapshots on remote repositories.
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