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MVC which submit button has been pressed
...e both your submit buttons the same
<input name="submit" type="submit" id="submit" value="Save" />
<input name="submit" type="submit" id="process" value="Process" />
Then in your controller get the value of submit. Only the button clicked will pass its value.
public ActionResult Inde...
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...
You can add ORDER BY NULL to the GROUP BY to avoid the sort.
– Ariel
Aug 20 '14 at 3:21
Sti...
No identities were available - administrator request
I had problems while "archiving" my app. I think there are invalid profiles because of iPhone Update to 5.1 and XCode update to 4.2.2.
...
What are the benefits of Java's types erasure?
...th the implementation that we can use to design our algorithms. What this means is that statically, when we reason about programs, we don't have the full picture. Reflection severely threatens the correctness of any proofs we reason about statically. It's no coincidence reflection also leads to a...
Gray out image with CSS?
...set that to be gray (change the alpha to get the effect).
html:
<div id="wrapper">
<img id="myImage" src="something.jpg" />
</div>
css:
#myImage {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
}
/* or */
#wrapper {
opacity: 0.4;
filter: alpha(opacit...
Getting rid of bullet points from
...
Assuming that didn't work, you might want to combine the id-based selector with the li in order to apply the css to the li elements:
#otis li {
list-style-type: none;
}
Reference:
list-style-type at the Mozilla Developer Center.
...
How can I render a list select box (dropdown) with bootstrap?
...nu which appears is boxy, less pretty, like the alert box your browser provides. Small issue really. The un-clicked selector looks exactly like a Bootstrap one, however.
– Robert
Nov 3 '16 at 8:40
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Determine Whether Two Date Ranges Overlap
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(StartA <= EndB) and (EndA >= StartB)
Proof:
Let ConditionA Mean that DateRange A Completely After DateRange B
_ |---- DateRange A ------|
|---Date Range B -----| _
(True if StartA > EndB)
Let ConditionB Mean that DateRange A ...
How to check if field is null or empty in MySQL?
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You can use the IFNULL function inside the IF. This will be a little shorter, and there will be fewer repetitions of the field name.
SELECT IF(IFNULL(field1, '') = '', 'empty', field1) AS field1
FROM tablename
...
ROW_NUMBER() in MySQL
...solution is basically the same as if someone would try to find the largest id with the following query: SELECT t1.id FROM test t1 LEFT JOIN test t2 ON t1.id>t2.id WHERE t2.id IS NULL; Does not it require n*n/2 + n/2 IS NULL comparisons to find the single row? Do there happen any optimizations I d...