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Read data from SqlDataReader
...you use indexes like reader.GetString(0) will it use the first column you selected in your query or the firstt column on the table. I have a table with 3 columns in order: ID, Dir, Email. My command selects dir and email. Will reader.GetStrting(0) retrieve dir or ID? Are the indexes based off t...
Where is android studio building my .apk file?
...
Go to AndroidStudio projects File
Select the project name,
Select app
Select build
Select Outputs
Select Apk
You will find APK files of app here, if you have ran the app in AVD or even hardware device
...
What is the difference between bindParam and bindValue?
...iated parameter markers
Example:
$value = 'foo';
$s = $dbh->prepare('SELECT name FROM bar WHERE baz = :baz');
$s->bindParam(':baz', $value); // use bindParam to bind the variable
$value = 'foobarbaz';
$s->execute(); // executed with WHERE baz = 'foobarbaz'
or
$value = 'foo';
$s = $dbh...
Proper way to rename solution (and directories) in Visual Studio
...story of the file. For example, with TortoiseSVN, right click on the file, select TortoiseSVN .. Rename.
In the .sln file, edit all instances of Project1 to be Project2, using a text editor like NotePad.
Restart Visual Studio, and everything will work as before, but with the project in a different ...
Xcode find caller functions
...e that this caller thing does NOT search for being called under the performSelector method, as in, the particular caller that has this performSelector won't show up if you had done something like:
[self performSelector:@selector(checkIfShouldStopMovement) withObject:nil afterDelay:0.25];
...
How to generate a simple popup using jQuery
...
First the CSS - tweak this however you like:
a.selected {
background-color:#1F75CC;
color:white;
z-index:100;
}
.messagepop {
background-color:#FFFFFF;
border:1px solid #999999;
cursor:default;
display:none;
margin-top: 15px;
position:absolute;
text-a...
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
...r anyone else who comes across this, it is due to the changes in pyparsing from 1.x to the 2.x release.
To install pydot using pip, first install the older version of pyparsing:
pip install pyparsing==1.5.7
pip install pydot==1.0.28
If you did not install pyparsing using pip, but instead used set...
Android Studio Google JAR file causing GC overhead limit exceeded error
...MaxHeapSize "4g"
}
and see if that helps.
(idea courtesy of this answer from Scott Barta)
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Very large matrices using Python and NumPy
NumPy is an extremely useful library, and from using it I've found that it's capable of handling matrices which are quite large (10000 x 10000) easily, but begins to struggle with anything much larger (trying to create a matrix of 50000 x 50000 fails). Obviously, this is because of the massive memo...
Getting the names of all files in a directory with PHP
...he files, using scandir()
// Folder where you want to get all files names from
$dir = "uploads/";
/* Hide this */
$hideName = array('.','..','.DS_Store');
// Sort in ascending order - this is default
$files = scandir($dir);
/* While this to there no more files are */
foreach($files as $filena...