大约有 47,000 项符合查询结果(耗时:0.0290秒) [XML]

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Selecting text in an element (akin to highlighting with your mouse)

I would like to have users click a link, then it selects the HTML text in another element ( not an input). 16 Answers ...
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How to select/get drop down option in Selenium 2

...converting my selenium 1 code to selenium 2 and can't find any easy way to select a label in a drop down menu or get the selected value of a drop down. Do you know how to do that in Selenium 2? ...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

The "N+1 selects problem" is generally stated as a problem in Object-Relational mapping (ORM) discussions, and I understand that it has something to do with having to make a lot of database queries for something that seems simple in the object world. ...
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How to set the first option on a select box using jQuery?

I have two HTML select boxes. I need to reset one select box when I make a selection in another. 17 Answers ...
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Prevent text selection after double click

...lick event on a span in my web app. A side-effect is that the double click selects text on the page. How can I prevent this selection from happening? ...
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Get selected value of a dropdown's item using jQuery

How can I get the selected value of a dropdown box using jQuery? I tried using 30 Answers ...
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?

... You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields: SELECT tt.* FROM topten tt INNER JOIN (SELECT home, MAX(datetime) AS MaxDateTime FROM topten GROUP BY home) groupedtt...
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Javascript/jQuery: Set Values (Selection) in a multiple Select

I have a multiple select: 8 Answers 8 ...
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quick random row selection in Postgres

... You might want to experiment with OFFSET, as in SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1; The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N. Update (by Antony Hatchkins) You must use floor he...
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How to get next/previous record in MySQL?

... next: select * from foo where id = (select min(id) from foo where id > 4) previous: select * from foo where id = (select max(id) from foo where id < 4) ...