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Check if instance is of a type
...wo different meanings.
If you want to check whether an instance is of an exact type then
if (c.GetType() == typeof(TForm))
is the way to go.
If you want to know whether c is an instance of TForm or a subclass then use is/as:
if (c is TForm)
or
TForm form = c as TForm;
if (form != null)
It...
Produce a random number in a range using C#
...
You can try
Random r = new Random();
int rInt = r.Next(0, 100); //for ints
int range = 100;
double rDouble = r.NextDouble()* range; //for doubles
Have a look at
Random Class, Random.Next Method (Int32, Int32) and Random.NextDouble Method
...
How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War
...
If you're on OSX El Capitan or Yosemite on Mac there seem to be an issue installing the gem.
Try
sudo gem install -n /usr/local/bin sass
Solution was from github.
...
Class does not implement its superclass's required members
So I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.
4 Ans...
keytool error :java.io.IoException:Incorrect AVA format
... me was the country code. I put "+1" and apparently the + was raising the exception.
– Donato
Aug 7 '16 at 21:36
1
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Cannot find module cv2 when using OpenCV
...conda install -c https://conda.binstar.org/menpo opencv
if you are on linux you can do :
pip install opencv-python
or
conda install opencv
Link1 Link2
For python3.5+ check these links : Link3 , Link4
Update:
if you use anaconda, you may simply use this as well (and hence don't need to add menpo ...
Using an if statement to check if a div is empty
... edited Sep 30 '14 at 11:30
Oxon
4,31177 gold badges3535 silver badges5252 bronze badges
answered Jan 12 '11 at 4:56
...
Disable orange outline highlight on focus
...a(255, 255, 255, 0);
-webkit-tap-highlight-color: transparent; // i.e. Nexus5/Chrome and Kindle Fire HD 7''
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How to drop a table if it exists?
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Is it correct to do the following?
IF EXISTS(SELECT *
FROM dbo.Scores)
DROP TABLE dbo.Scores
No. That will drop the table only if it contains any rows (and will raise an error if the table does not exist).
Instead, for a permanent table you can ...
Regex doesn't work in String.matches()
...tely, other languages have followed suit :(
If you want to see if the regex matches an input text, use a Pattern, a Matcher and the .find() method of the matcher:
Pattern p = Pattern.compile("[a-z]");
Matcher m = p.matcher(inputstring);
if (m.find())
// match
If what you want is indeed to se...