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How do I check in SQLite whether a table exists?
... = new SQLiteDataAdapter(cmd); and do adapter.Fill(ds), where ds is a DataSet. You can then see if ds.Tables.Count > 0 and return ds.Tables[0]; if so (or else return null). Then you can check that DataTable for being null, if dt.Rows != null, and if dt.Rows.Count>0
– vap...
Need a simple explanation of the inject method
...may be to show how each step works, for your example; this is an imaginary set of steps showing how this result could be evaluated:
[1, 2, 3, 4].inject(0) { |result, element| result + element }
[2, 3, 4].inject(0 + 1) { |result, element| result + element }
[3, 4].inject((0 + 1) + 2) { |result, elem...
Xcode duplicate/delete line
...se note that this will only work if you are NOT using a custom key binding set in Xcode. Switch to "XCode Default" and things should work. Tested on XCode 3.2 on Snow Leopard.
More information on Mac OS X key bindings: http://funkworks.blogspot.it/2013/03/republishing-of-wwwerasetotheleftcompos.htm...
How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
...r you are likely to get a warning about the bootstrap class path not being set. More information about this error is available in a blog post New javac warning for setting an older source without bootclasspath.
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Google maps API V3 - multiple markers on exact same spot
...ngMarkerSpiderfier in combination with MarkerClusterer a good option is to set the maxZoom option on the cluster constructor. This "unclusters" the markers after the specified zoom levele.
– Diederik
Mar 25 '15 at 13:33
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How to change color in markdown cells ipython/jupyter notebook?
...you provide more information on what you tried and how your environment is set up? Remember to change the cell type to Markdown, which can be done through the Cell > Cell Type menu.
– Scott H
Jul 31 '14 at 17:39
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Checkboxes in web pages – how to make them bigger?
...ering how you deal with the checkmark showing up. With the background just set to a color, the white checkmark in the box is no longer visible. Is there an easy solution? I've tried add a html entity for the check in a :before, but wondering if there is an alternative
– PBandJe...
Center image using text-align center?
... inside of the tag. You would want to put a span tag around the image and set its style to text-align: center, as so:
span.centerImage {
text-align: center;
}
<span class="centerImage"><img src="http://placehold.it/60/60" /></span>
The image will be centered....
CSS transition shorthand with multiple properties?
... transition-delay of 0 and putting a standalone delay before the shorthand sets it back to 0.
– duncanwilcox
Jul 21 '13 at 15:37
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Why does an image captured using camera intent gets rotated on some devices on Android?
I'm capturing an image and setting it to image view.
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