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c# open a new form then close the current form?
...c, but it looks like you were trying to do what I do in my Win Forms apps: start with a Login form, then after successful login, close that form and put focus on a Main form. Here's how I do it:
make frmMain the startup form; this is what my Program.cs looks like:
[STAThread]
static void Main()
...
What's the difference between a Python module and a Python package?
...ir -p a/b
$ touch a/b/c.py
Ensure that there are no other files under a. Start a Python 3.4 or later interpreter (e.g., with python3 -i) and examine the results of the following statements:
import a
a ⇒ <module 'a' (namespace)>
a.b ⇒ AttributeError: module 'a...
Intermittent log4net RollingFileAppender locked file issue
...ow do I get multiple process to log to the same file?
Before you even start trying any of the alternatives provided, ask
yourself whether you really need to have multiple processes log to the
same file, then don't do it ;-).
FileAppender offers pluggable locking models for this usecase...
Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
...e easily", which is required if you don't use a complex solution in at the start.
If your sure your application will always remain simple, or you can set some benchmark of application complexity after which you will integrate one of the more complex solutions, then I'd recommend not using tiles/etc...
Windows batch: formatted date into variable
... this is a pretty portable):
@if (@X)==(@Y) @end /****** silent line that start jscript comment ******
@echo off
::::::::::::::::::::::::::::::::::::
::: Compile the script ::::
::::::::::::::::::::::::::::::::::::
setlocal
if exist "%~n0.exe" goto :skip_compilation
set "frm=%SystemRoot%...
What it the significance of the Javascript constructor property?
... That was true when those answers were written, but ES2015 and onward have started using constructor for things.
The constructor property of the prototype property of a function is meant to point back to the function so that you can ask an object what constructed it. It's set up automatically as par...
Method chaining - why is it a good practice, or not?
...cumbersome very fast. Instead I opted for the chaining approach:
MyObject.Start()
.SpecifySomeParameter(asdasd)
.SpecifySomeOtherParameter(asdasd)
.Execute();
The method chaining approach was optional, but it made writing code easier (especially with IntelliSense). Mind you that this ...
Vim: Move cursor to its last position
... goes to the same location on the line, whereas the apostrophe goes to the start of the line. On a UK keyboard, the apostrophe is more accessible, so I tend to use that one. There are loads of useful marks like this, see :help mark-motions.
For some other motions (not 2j I think), there's also th...
In C, do braces act as a stack frame?
...hat gcc 4.3.4 does, and it allocates all of the stack space at once at the start of the function. You can examine the assembly that gcc produces using the -S flag.
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What is the difference between a thread and a fiber?
...fiber yields execution (same note as above). This means that fibers always start and stop in well-defined places, so data integrity is much less of an issue. Also, because fibers are often managed in the user space, expensive context switches and CPU state changes need not be made, making changing f...