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How to handle AccessViolationException
...ine instead of entering the catch block. Additionally, if I run this outside of the visual studio my application crashes. How can I handle this exception that is thrown within the COM object?
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What is the meaning of symbol $ in jQuery?
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By default, jQuery uses "$" as a shortcut for "jQuery"
So, using $("#id") or jQuery("#id") is the same.
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What is the difference between up-casting and down-casting with respect to class variable
...ing: When we want to cast a Sub class to Super class, we use Upcasting(or widening). It happens automatically, no need to do anything explicitly.
Downcasting : When we want to cast a Super class to Sub class, we use
Downcasting(or narrowing), and Downcasting is not directly possible in Java, expl...
Error 1022 - Can't write; duplicate key in table
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The most likely you already have a constraint with the name iduser or idcategory in your database. Just rename the constraints if so.
Constraints must be unique for the entire database, not just for the specific table you are creating/altering.
To find out where the constraints are ...
How can I use a local image as the base image with a dockerfile?
... image called ubuntu different from the official one, your image will override it.
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Is it possible to specify condition in Count()?
...y old, but I like the NULLIF trick for such scenarios, and I found no downsides so far. Just see my copy&pasteable example, which is not very practical though, but demonstrates how to use it.
NULLIF might give you a small negative impact on performance, but I guess it should still be faster tha...
Get HTML Source of WebElement in Selenium WebDriver using Python
...riptExecutor class in Python.
WebElement element = driver.findElement(By.id("foo"));
String contents = (String)((JavascriptExecutor)driver).executeScript("return arguments[0].innerHTML;", element);
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How Pony (ORM) does its tricks?
...ted in the first step, so let me explain how decompiling works.
Let's consider this query:
>>> from pony.orm.examples.estore import *
>>> select(c for c in Customer if c.country == 'USA').show()
Which will be translated into the following SQL:
SELECT "c"."id", "c"."email", "c"...
What are the pros and cons of both Jade and EJS for Node.js templating? [closed]
...ich make the code very confusing (at least for me)
a(href='/user/' + user.id)= user.name
Jade is also not designer-friendly. My designer friends often give me HTML and CSS (They switched to LESS recently but still want to use HTML), and for that reason if I use Jade I need to convert HTML to Jade...
Check if a div exists with jquery [duplicate]
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Unless in code above they got something like $('#DivID') = null; Lol)
– ZurabWeb
Nov 6 '13 at 21:14
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