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SqlException from Entity Framework - New transaction is not allowed because there are other threads

...red that the foreach loops were the culprits. What needs to happen is to call EF but return it into an IList<T> of that target type then loop on the IList<T>. Example: IList<Client> clientList = from a in _dbFeed.Client.Include("Auto") select a; foreach (RivWorks.Model.Negotiati...
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Is there a way to perform “if” in python's lambda

... If you still want to print you can import future module from __future__ import print_function f = lambda x: print(x) if x%2 == 0 else False share | improve this answer | ...
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Sending command line arguments to npm script

... a parsing library like yargs or minimist; nodejs exposes process.argv globally, containing command line parameter values, but this is a low-level API (whitespace-separated array of strings, as provided by the operating system to the node executable). Edit 2013.10.03: It's not currently possible...
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Detecting a redirect in ajax request?

...ttpRequest object directly. You can use something like this: var xhr; var _orgAjax = jQuery.ajaxSettings.xhr; jQuery.ajaxSettings.xhr = function () { xhr = _orgAjax(); return xhr; }; jQuery.ajax('http://test.com', { success: function(responseText) { console.log('responseURL:', xhr.respon...
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Why are Oracle table/column/index names limited to 30 characters?

..., but there is always a case that turns up where we hit this limit - especially in naming foreign keys. 10 Answers ...
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Convert to binary and keep leading zeros in Python

...ction in Python. However, it always removes the leading zeros, which I actually need, such that the result is always 8-bit: ...
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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...

... public: virtual void virtualFunc(){} }; Base* pB = new Derived; __try { delete pB; // . . . b) pB = NULL; } __except(EXCEPTION_EXECUTE_HANDLER){ } pB->virtualFunc(); // . . . c) 在b)处析构Derived对象的时候,在其基类析构函数中a)处抛出了...
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Proxies with Python 'Requests' module

...he same) proxie(s) for requests using http, https, and ftp protocols: http_proxy = "http://10.10.1.10:3128" https_proxy = "https://10.10.1.11:1080" ftp_proxy = "ftp://10.10.1.10:3128" proxyDict = { "http" : http_proxy, "https" : https_proxy, "ftp" ...
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.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo

...ewed the default.aspx page with the Firefox browser. When I check the net calls it has made, I see it making constant calls to: ...
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How can I convert an RGB image into grayscale in Python?

... SciPy's image I/O is literally PIL/Pillow. Hence, testing SciPy is effectively retesting PIL/Pillow with negligible overhead introduced by SciPy's wrapper functions. It would have been much more useful to substitute OpenCV (which does not leverage PIL...