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How to do a batch insert in MySQL
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From the MySQL manual
INSERT statements that use VALUES
syntax can insert multiple rows. To do
this, include multiple lists of column
values, each enclosed within
parentheses and separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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What is Prism for WPF?
I've come across something called Prism a lot recently. Microsoft, who run the project, describe it as
2 Answers
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LINQ Group By into a Dictionary Object
...string, List<CustomObject>> from a List<CustomObject> . I can get this to work using "var", but I don't want to use anonymous types. Here is what I have
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Check if item is in an array / list
If I've got an array of strings, can I check to see if a string is in the array without doing a for loop? Specifically, I'm looking for a way to do it within an if statement, so something like this:
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How to create a temporary directory and get the path / file name in Python
...f you use this in a test be sure to remove (shutil.rmtree) the directory because it's not automatically deleted after use. "The user of mkdtemp() is responsible for deleting the temporary directory and its contents when done with it." See: docs.python.org/2/library/tempfile.html#tempfile.mkdtemp
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Difference between . and : in Lua
I am confused about the difference between function calls via . and via :
3 Answers
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How do I create a class instance from a string name in ruby?
...e name of a class and I want to create an instance of that class so that I can loop through each rails attribute that is present in the schema of that class.
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How to find the installed pandas version
...gt; import pandas as pd >>> pd.__version__ Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: module 'pandas' has no attribute '__version__'
– jangorecki
May 26 '18 at 10:38
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How can I catch a ctrl-c event?
How do I catch a Ctrl + C event in C++?
4 Answers
4
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int value under 10 convert to string two digit number
...t("{0:00}", i);
str2 = String.Format("{0:000}", i);
}
For the i = 10 case:
str1: "10"
str2: "010"
I use this, for example, to clear the text on particular Label Controls on my form by name:
private void EmptyLabelArray()
{
var fmt = "Label_Row{0:00}_Col{0:00}";
for (var rowInd...