大约有 47,000 项符合查询结果(耗时:0.0486秒) [XML]

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The ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumera

... same code used before, so repeat this: var db = new DB(); IEnumerable<SelectListItem> basetypes = db.Basetypes.Select( b => new SelectListItem { Value = b.basetype, Text = b.basetype }); ViewData["basetype"] = basetypes; before the return View(meal) in the [HttpPost] method. exactl...
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How to select multiple files with ?

How to select multiple files with <input type="file"> ? 9 Answers 9 ...
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Using Chrome, how to find to which events are bound to an element

...e Event you need From the handler property, right click over function and select 'Show function definition' You will now see the Event binding code Click on the 'Pretty print' button for a more readable view of the code sh...
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When should I use a composite index?

...nefit a query that uses those fields for joining, filtering, and sometimes selecting. It will also benefit queries that use left-most subsets of columns in that composite. So the above index will also satisfy queries that need index( column_A, column_B, column_C ) index( column_A, column_B ) index(...
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What is cardinality in MySQL?

...ow cardinality column with only 2 possible values as the index will not be selective enough to be used. share | improve this answer | follow | ...
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Change Author template in Android Studio

...ferences dialog. 2)In the search box, write "File and Code Templates". 3)Select the left menu item "File and Code Templates". 4)From the middle tabular navigation section, select Includes. 5)Select File Header item that applies to the Java files. 6)You will find an editor section that allow you...
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How do I connect to a MySQL Database in Python?

...ueries you need cur = db.cursor() # Use all the SQL you like cur.execute("SELECT * FROM YOUR_TABLE_NAME") # print all the first cell of all the rows for row in cur.fetchall(): print row[0] db.close() Of course, there are thousand of possibilities and options; this is a very basic example. Y...
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How to get Spinner value?

In Android, I am trying to get the selected Spinner value with a listener. 7 Answers 7...
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Error installing mysql2: Failed to build gem native extension

... For windows try the Ticked answer from stackoverflow.com/questions/19014117/… – nitigyan Jul 18 '14 at 10:28  | ...
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jQuery: select all elements of a given class, except for a particular Id

... Use the :not selector. $(".thisclass:not(#thisid)").doAction(); If you have multiple ids or selectors just use the comma delimiter, in addition: (".thisclass:not(#thisid,#thatid)").doAction(); ...