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How to check whether an object has certain method/property?
...ethod(methodName) != null;
}
Edit : you can even do an extension method and use it like this
myObject.HasMethod("SomeMethod");
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Is Enabling Double Escaping Dangerous?
...ath.
Finally, a very simple, if limited workaround is simply to avoid '+' and use '%20' instead. In any case, using the '+' symbol to encode a space is not valid url encoding, but specific to a limited set of protocols and probably widely supported for backwards-compatibility reasons. If only for...
CSS Properties: Display vs. Visibility
...n - you can't see it).
The display property tells the browser how to draw and show an element, if at all - whether it should be displayed as an inline element (i.e. it flows with text and other inline elements) or a block-level element (i.e. it has height and width properties that you can set, it's...
How can I open Windows Explorer to a certain directory from within a WPF app?
...exe"); will run Calculator. You can pass it the full path to an executable and it will run it.
– Jamie Penney
Nov 17 '09 at 2:33
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How do I modify a MySQL column to allow NULL?
...ge case which is the TIMESTAMP type, which depending on your MySQL version and config can be NOT NULL specifying NULL as suggested by @ConroyP is more correct.
– Matthew Buckett
Jan 26 '16 at 13:37
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Why are Objective-C delegates usually given the property assign instead of retain?
I'm surfing through the wonderful blog maintained by Scott Stevenson, and I'm trying to understand a fundamental Objective-C concept of assigning delegates the 'assign' property vs 'retain'. Note, the both are the same in a garbage collected environment. I'm mostly concerned with a non-GC based envi...
Check a radio button with javascript
... Technically it's CSS selector syntax. jQuery just borrowed and extended it
– Tim Seguine
Jan 16 '14 at 16:10
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How to make graphics with transparent background in R using ggplot2?
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Updated with the theme() function, ggsave() and the code for the legend background:
df <- data.frame(y = d, x = 1, group = rep(c("gr1", "gr2"), 50))
p <- ggplot(df) +
stat_boxplot(aes(x = x, y = y, color = group),
fill = "transparent" # for the...
Entity Framework 4 - AddObject vs Attach
I have been working with Entity Framework 4 recently, and am slightly confused as to when to use ObjectSet.Attach , and ObjectSet.AddObject .
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How to generate gcc debug symbol outside the build target?
...a .debug extension in a .debug directory. This way I can tar the libraries and executables in one tar file and the .debug directories in another. If I want to add the debug info later on I simply extract the debug tar file and voila I have symbolic debug information.
This is the bash script:
#!/bi...