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c# - update-database: "A network-related or instance-specific error occurred while establishing a connection to SQL Server"

I have a simple C# project. This is my connection string in my web.config for the database: <connectionStrings> ... it again. Nothing changed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I convert a byte array with null terminating character to a String in Java?

How can I create a String object from a byte array byte arr[MAX_SIZE]; // Java where one of the array elements ... will be used on all ends. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Matplotlib - logarithmic scale, but require non-logarithmic labels

How can I stop the y-axis displaying a logarithmic notation label on the y-axis? I'm happy with the logarithmic ... plt.grid(True) plt.show() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why doesn't the CSS calc() function work for me?

I learned about the CSS function calc() and its awesome. I tried to use it like: #abc{width:calc(100%-20px)} But ... work. Why doesn't it work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - onPageFinished() never called (webview)!

I want to show a toast when the webview is totally loaded. But the toast never show up, i don't know why..here is ... ).show(); } }); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - setting upper and lower limits in rnorm

I am simulating data using rnorm, but I need to set an upper and lower limit, does anyone know how to do this? code: ... m=39.74,sd=25.11,mk=4) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Angular 1.5 component method templateUrl + function

I'm trying to get an app working with angular 1.5.0-beta.2 To make a 'directive' I have the following ... do I combine this with a templateUrl? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Linking 32-bit library to 64-bit program

I have a 32-bit .so binary-only library and I have to generate 64-bit program that uses it. Is there a way ... can be used with 64-bit program? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Pressing spacebar scrolls page down?

I have a problem that I'm not even sure what to search for in order to fix. When I press the spacebar my entire ... : I am using jQuery 1.4.2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Attempt to reopen an already-closed object sqlitedatabase

I have a databaseHandler. I need to count the rows in table. App crashes by this error: android attempt to reopen an ... ", null, null); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Count regex replaces (C#)

Is there a way to count the number of replacements a Regex.Replace call makes? E.g. for Regex.Replace("aaa", ... twice. Is there a better way. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - HelloAndroid]emulator-5554 disconnected! Cancelling 'com.example.helloandroid.HelloAndroid activity launch'!

I am new to Android. Follow the HelloAndroid Tutorials by use Eclipse. After run HelloAndroid, the AVD ... .HelloAndroid activity launch'! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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size of array in c

a simple question that bugs me. Say I have an array defined in main like so int arr[5]. Now, if I'm ... . Any ideas why? Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - <div> into a <tr>: is it correct?

Is this code correct? <table> <tr> <td>...</td> </tr> <tr> <div>...</div> </tr> <tr> <td>. ... semantic (and W3C rules). What can you say about? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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audio - HTML embed autoplay="false", but still plays automatically

On the front page of this website, there is a sticky post titled "National Radio Advertising Campaign ForACURE" ... of embedding this audio? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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306 views

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Facebook iframe tab signed request always empty

I'm working on a Facebook app tab and would like to use the signed request bundle as documented here: http:// ... that make a difference? -Seth See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

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r - Different legend-keys inside same legend in ggplot2

Let's say I don't need a 'proper' variable mapping but still would like to have legend keys to help the ... Other ideas more than welcome!!! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to access files under assets folder of other apk's?

When we browse any apk we found there is one folder named assets. Now I want to access that folder programatically. ... apk file/just app name). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Convert a JSON array to a bash array of strings

How do I parse a json array of objects to a bash array with those objects as strings? I am trying to do the ... "value1", "key2": "value2"}' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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list - Zip with default value instead of dropping values?

I'm looking for a function in haskell to zip two lists that may vary in length. All zip functions I could ... not find any solution so far. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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244 views

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c++ - Can SFINAE detect private access violations?

I wonder whether if i test for some member of a class and the member is private what will sfinae respond? Will ... error out in the sfinae way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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Entity Framework Code First : Setting up One-To-One foreign key association using Annotations

I have following two Entities that I am trying to relate (one to one) using foreign key associations. public ... xaml.cs:line 33 InnerException: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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generics - Why can't `&(?Sized + Trait)` be cast to `&dyn Trait`?

In the code below it is not possible to obtain a reference to a trait object from a reference to a ... the object type `dyn FooTrait` See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to pass tomcat port number on command line?

Is it possible to tell tomcat to use a particular port instead of the one specified in server.xml? Or a ... conflict in the multiple instances. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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566 views

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matlab - Difference of handle and values classes

I have some C++ background and want to use classes in Matlab. What is the difference between a handle and a ... when I pick a handle class. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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Airflow: changing the crontab time for a DAG in Airflow

I have a DAG that has been running everyday at 3:00, it ran OK for the past few weeks. I've updated ... this again. Anyone has a suggestion? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Does Internet Explorer 9 choke on extra commas at the end of array and object literals?

Modern browsers and environments like Node.js allow you to say {a:1, b:2,} or [1,2,3,]. This has ... Is this fixed in Internet Explorer 9? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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963 views

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mongodb - Find all documents within last n days

My daily collection has documents like: .. { "date" : ISODate("2013-01-03T00:00:00Z"), "vid" : "ED", "san ... . How do I do that? Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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