大约有 49,000 项符合查询结果(耗时:0.0673秒) [XML]

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How to make an element in XML schema optional?

... Indeed, tested it, and you only need to specify minOccurs="0" to make it optional if you want to allow one element max. – Wouter Schut Jan 10 '17 at 8:42 ...
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How can I pass an argument to a PowerShell script?

...ould it be something like -step '15' or -step "15" – Andrew Gray Nov 2 '15 at 0:04 7 ...
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Getting one value from a tuple

...Tuples can be indexed just like lists. The main difference between tuples and lists is that tuples are immutable - you can't set the elements of a tuple to different values, or add or remove elements like you can from a list. But other than that, in most situations, they work pretty much the same. ...
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The function to show current file's full path in mini buffer

...t thing to do is to have your emacs window to always show your system-name and the full path of the buffer you're currently editing : (setq frame-title-format (list (format "%s %%S: %%j " (system-name)) '(buffer-file-name "%f" (dired-directory dired-directory "%b")))) You can also d...
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Do I need to heartbeat to keep a TCP connection open?

...s that that communicate via TCP/IP. Component A acts as a server/listener and Component B is the client. The two should communicate as quickly as possible. There can only ever be one connection at any time (though that is aside to this question). A senior developer at my company has said I need ...
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What is a database transaction?

... To do that you have first to withdraw the amount from the source account, and then deposit it to the destination account. The operation has to succeed in full. If you stop halfway, the money will be lost, and that is Very Bad. In modern databases transactions also do some other things - like ensur...
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Ignoring a class property in Entity Framework 4.1 Code First

My understanding is that the [NotMapped] attribute is not available until EF 5 which is currently in CTP so we cannot use it in production. ...
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Shell script while read line loop stops after the first line

... line of the target file (whose path is the input parameter to the script) and do work against each line. Now, it seems only work with the very first line in the target file and stops after that line got processed. Is there anything wrong with my script? ...
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Fluent Validation vs. Data Annotations [closed]

...ata Annotations It has excellent client side validation support for most standard validation rules share | improve this answer | follow | ...
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What is the difference between MVC and MVVM? [closed]

Is there a difference between the standard "Model View Controller" pattern and Microsoft's Model/View/ViewModel pattern? 25...