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How do I group Windows Form radio buttons?
... edited Mar 28 '14 at 16:39
Majid
11.6k1111 gold badges6767 silver badges105105 bronze badges
answered Feb 1 '10 at 16:30
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Extract substring using regexp in plain bash
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Thanks for the detailed explanation, helps to avoid future "how do I regexp XXXX" posts.
– studgeek
Feb 8 '17 at 20:23
4
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How to check if there exists a process with a given pid in Python?
Is there a way to check to see if a pid corresponds to a valid process? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine.
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How can I tell PyCharm what type a parameter is expected to be?
...n it comes to constructors, and assignments, and method calls, the PyCharm IDE is pretty good at analyzing my source code and figuring out what type each variable should be. I like it when it's right, because it gives me good code-completion and parameter info, and it gives me warnings if I try to a...
Convert a row of a data frame to vector
... been changed in the meantime, but today unlist allows dropping names: identical(unlist(df[1,], use.names = FALSE), as.numeric(df[1,])) (and btw df still is not a sensible name for a data.frame... ;-))
– Andri Signorell
Sep 25 '19 at 13:51
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Yes/No message box using QMessageBox
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You would use QMessageBox::question for that.
Example in a hypothetical widget's slot:
#include <QApplication>
#include <QMessageBox>
#include <QDebug>
// ...
void MyWidget::someSlot() {
QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "Test", "Quit?"...
How to completely remove borders from HTML table
..."priority" calculated and what border styles are "stronger" (double vs. solid etc.).
I did like this:
<table cellspacing="0" cellpadding="0">
<tr>
<td class="first">first row</td>
</tr>
<tr>
<td class="second">second row</td>
</tr...
The current SynchronizationContext may not be used as a TaskScheduler
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You need to provide a SynchronizationContext. This is how I handle it:
[SetUp]
public void TestSetUp()
{
SynchronizationContext.SetSynchronizationContext(new SynchronizationContext());
}
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What does the `#` operator mean in Scala?
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To explain it, we first have to explain nested classes in Scala. Consider this simple example:
class A {
class B
def f(b: B) = println("Got my B!")
}
Now let's try something with it:
scala> val a1 = new A
a1: A = A@2fa8ecf4
scala> val a2 = new A
a2: A = A@4bed4c8
scala> a2....
Pry: show me the stack
..."vendor/bundle"] || x["/.rbenv/versions/"] }
– hoodslide
Jul 9 '15 at 19:15
4
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