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FileSystemWatcher Changed event is raised twice
...ged eventhandler to handle the event. I am using the NotifyFilters.LastWriteTime but still the event is getting fired twice. Here is the code.
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How do I use cascade delete with SQL Server?
I have 2 tables: T1 and T2, they are existing tables with data. We have a one to many relationship between T1 and T2. How do I alter the table definitions to perform cascading delete in SQL Server when a record from T1 is deleted, all associated records in T2 also deleted.
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What does “The APR based Apache Tomcat Native library was not found” mean?
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It means exactly what it says: "The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path"
The library referred to is bundled into an OS spe...
What's the difference between ViewData and ViewBag?
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It uses the C# 4.0 dynamic feature. It achieves the same goal as viewdata and should be avoided in favor of using strongly typed view models (the same way as viewdata should be avoided).
So basically it replaces magic string...
Why Choose Struct Over Class?
Playing around with Swift, coming from a Java background, why would you want to choose a Struct instead of a Class? Seems like they are the same thing, with a Struct offering less functionality. Why choose it then?
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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...ccess the response body via response.getOutputStream() or response.getWriter() . Should one call .close() on this OutputStream after it has been written to?
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MySQL - length() vs char_length()
...(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
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Can I use a min-height for table, tr or td?
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It's not a nice solution but try it like this:
<table>
<tr>
<td>
<div>Lorem</div>
</td>
</tr>
<tr>
<td>
<di...
Do AJAX requests retain PHP Session info?
If I had a user logged onto my site, having his id stored in $_SESSION , and from his browser he clicked a 'Save' button which would make an AJAX request to the server. Will his $_SESSION and cookies be retained in this request, and can I safely rely on the id being present in the $_SESSION ?
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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...s I will need to perform some check before creating an object, probably in its constructor. This is all okay until I decide I want to make this check be a part of the business logic. So, how can I arrange for a business object to be creatable only through some method in my business logic class but n...