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Can you get the column names from a SqlDataReader?
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var reader = cmd.ExecuteReader();
var columns = new List<string>();
for(int i=0;i<reader.FieldCount;i++)
{
columns.Add(reader.GetName(i));
}
or
var columns = Enumerable.Range(0, reader.FieldCount).Select(reader.GetName).ToList();
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Function for Factorial in Python
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Easiest way is to use math.factorial (available in Python 2.6 and above):
import math
math.factorial(1000)
If you want/have to write it yourself, you can use an iterative approach:
def factorial(n):
fact = 1
for num in range(2, n + 1):
fact *= num
return fact
o...
“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
I have just installed XAMPP on my Windows XP machine, and I get an error saying:
12 Answers
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How to do a https request with bad certificate?
Say I want to get https://golang.org programatically. Currently golang.org (ssl) has a bad certificate which is issued to *.appspot.com So when I run this:
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What's the difference between HEAD^ and HEAD~ in Git?
...f thumb
Use ~ most of the time — to go back a number of generations, usually what you want
Use ^ on merge commits — because they have two or more (immediate) parents
Mnemonics:
Tilde ~ is almost linear in appearance and wants to go backward in a straight line
Caret ^ suggests an interesting s...
NULL vs nullptr (Why was it replaced?) [duplicate]
...problem" of my answer, plus it's a nice reference. This answer is just a small part of the reasons.
– Cheers and hth. - Alf
Dec 11 '13 at 3:22
1
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Fast way of counting non-zero bits in positive integer
...der to understand how this works imagine that you divide the entire 64-bit string into 64 1-bit buckets. Each bucket's value is equal to the number of bits set in the bucket (0 if no bits are set and 1 if one bit is set). The first transformation results in an analogous state, but with 32 buckets ea...
Should a “static final Logger” be declared in UPPER-CASE?
...stants if they are immutable. by this logic, you would never have constant strings because any static final string is a reference.
– Jeffrey Blattman
Jan 25 '13 at 4:04
30
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Mockito. Verify method arguments
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Important: Call verify()/capture() after using the mock. I was thinking it has to be "installed" before...
– Daniel Alder
Feb 21 '18 at 16:02
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How do you save/store objects in SharedPreferences on Android?
...Object', etc.
Editor prefsEditor = mPrefs.edit();
Gson gson = new Gson();
String json = gson.toJson(myObject);
prefsEditor.putString("MyObject", json);
prefsEditor.commit();
To retrieve:
Gson gson = new Gson();
String json = mPrefs.getString("MyObject", "");
MyObject obj = gson.fromJson(json, My...