大约有 44,000 项符合查询结果（耗时：0.0406秒） [XML]
How can I get the corresponding table header (th) from a table cell (td)?
Given the following table, how would I get the corresponding table header for each td element?
7 Answers
...
How to use HTML to print header and footer on every printed page of a document?
...peat that element at the bottom of each printed page. The same would work for a header element, just set top:0 instead.
For example:
<div class="divFooter">UNCLASSIFIED</div>
CSS:
@media screen {
div.divFooter {
display: none;
}
}
@media print {
div.divFooter {
positi...
How to fix height of TR?
...
Thanks for the advise, It seems to work, but it looks a bit messy though.
– Amra
Jan 19 '10 at 11:10
...
How do I force Postgres to use a particular index?
How do I force Postgres to use an index when it would otherwise insist on doing a sequential scan?
6 Answers
...
Rails server says port already used, how to kill that process?
...
Just to clarify for novices: in the second line of code, you are supposed to replace the PID with the actual number that is shown in your console upon entering the first line of code (eg, 12345).
– CodeBiker
...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
...your contract between client and database stable. Same data, every time
Performance, covering indexes
Edit (July 2011):
If you drag from Object Explorer the Columns node for a table, it puts a CSV list of columns in the Query Window for you which achieves one of your goals
...
How to have a default option in Angular.js select box
...ons[0]"
ng-model="somethingHere"
ng-options="option.name for option in options">
</select>
share
|
improve this answer
|
follow
|
...
Detect permission of camera in iOS
...eo;
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];
if(authStatus == AVAuthorizationStatusAuthorized) {
// do your logic
} else if(authStatus == AVAuthorizationStatusDenied){
// denied
} else if(authStatus == AVAuthorizationStatusRestricted){
// ...
How to convert ActiveRecord results into an array of hashes
...ash and you can convert any ActiveRecord results to an Array with to_a, so for your example :
tasks_records = TaskStoreStatus.all
tasks_records.to_a.map(&:serializable_hash)
And if you want an ugly solution for Rails prior to v2.3
JSON.parse(tasks_records.to_json) # please don't do it
...
Changing CSS Values with Javascript
...ke this:
var cssRuleCode = document.all ? 'rules' : 'cssRules'; //account for IE and FF
var rule = document.styleSheets[styleIndex][cssRuleCode][ruleIndex];
var selector = rule.selectorText; //maybe '#tId'
var value = rule.value; //both selectorText and value are settable.
Let me know...