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Understanding events and event handlers in C#
...Class know about the type of your myFactory):
TheOtherClass toc;
//...
toc.SetFactory(myFactory);
class TheOtherClass
{
public void SetFactory(MyFactory factory)
{
// set here
}
}
If you'd use delegates, you don't have to expose the type of my factory:
TheOtherClass toc;
//...
Act...
In pure functional languages, is there an algorithm to get the inverse function?
...Calculus: Its Syntax and Semantics. North Holland, Amsterdam (1984):
A set of lambda-terms is nontrivial if it is neither the empty nor the full set. If A and B are two nontrivial, disjoint sets of lambda-terms closed under (beta) equality, then A and B are recursively inseparable.
Let's take ...
What Ruby IDE do you prefer? [closed]
...'t too bad, though it had and still has some rough edges. (E.g. the way to set up keyboard shortcuts is needlessly laborious and confusing.) Oracle has stopped work on the Ruby module, but you can still use it if you download NetBeans 6.9.1. RubyMine is a lot better though.
– E...
How to determine when a Git branch was created?
...Jackub's answer, as long as your branch is younger than the number of days set in the config setting gc.reflogexpire (the default is 90 days), then you can utilize your reflog to find out when a branch reference was first created.
Note that git reflog can take most git log flags. Further note that ...
Why are we not to throw these exceptions?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
What does the comma operator , do?
... with templates, we couldn't have a function take an arbitrary type, so we settled on a macro:
#define ASSIGN_INCR(p, val, type) ((*((type) *)(p) = (val)), (p) += sizeof(type))
By using the comma operator we were able to use this in expressions or as statements as we wished:
if (need_to_output_...
List of all index & index columns in SQL Server DB
...well as any Microsoft Azure SQL Database.
Produces a comprehensive result set that is easily exportable to Notepad/Excel for slicing and dicing and includes
Table Name
Index Name
Index Description
Indexed Columns - In order
Included Columns - In order
SELECT '[' + s.NAME + '].[...
Visual Studio move project to a different folder
...e “File path” entry that allows you to select the new project location
Set the new path
Right click on the project and click reload
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HTTP Error 500.19 and error code : 0x80070021
...oogle for many hours. I found out the solution.
This error is because some settings are disabled in IIS applicationHost.config.
Below are the steps to solution:
Go to C:\Windows\System32\inetsrv\config\applicationHost.config and open in notepad
Change the following key value present in
<sec...
How to call asynchronous method from synchronous method in C#?
...in is now part of C# 7.2 and can be enabled in the projects advanced build settings.
For C# < 7.2, the correct way is:
static void Main(string[] args)
{
MainAsync().GetAwaiter().GetResult();
}
static async Task MainAsync()
{
/*await stuff here*/
}
You'll see this used in a lot of Mic...