OStack Q&A-Knowledge Sharing Community

0 votes

136 views

1 answer

How to convert errno in UNIX to corresponding string?

Is there any function in UNIX to the convert errno to its corresponding string for e.g. EIDRM to "EIDRM". ... questions/1546882/how-to-convert-errno-in-unix-to-corresponding-string...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

308 views

1 answer

css - jquery ui dialog fixed positioning

I needed the dialog to maintain its position fixed even if the page scrolled, so i used the extension ... ://stackoverflow.com/questions/2657076/jquery-ui-dialog-fixed-positioning...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

200 views

1 answer

Downloading and parsing json in swift

I'm trying to get the JSON from a website and parse it before putting it inside of an iOS view. ... ://stackoverflow.com/questions/24065536/downloading-and-parsing-json-in-swift...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

54 views

1 answer

java - How can I improve performance of Field.set (perhap using MethodHandles)?

I'm writing some code that calls Field.set and Field.get many many thousands of times. Obviously this is ... how-can-i-improve-performance-of-field-set-perhap-using-methodhandles...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

157 views

1 answer

c# - Visual Studio : can't find "resource file" in list of items to add to project

I'm on VS Community 2017 RC. I'd like to add a resource file (.resx) to my project but this item type is not ... -studio-cant-find-resource-file-in-list-of-items-to-add-to-project...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

285 views

1 answer

How does a Windows service differ from a standard exe?

What's the difference between a Windows service and a standard exe? question from:https://stackoverflow.com/questions/2125924/how-does-a-windows-service-differ-from-a-standard-exe...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

138 views

1 answer

java - On zoom event for google maps on android

We're building an application which is using the google maps api for android. I have my MapController and MapView, ... /questions/2013443/on-zoom-event-for-google-maps-on-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

201 views

1 answer

Simulate Python keypresses for controlling a game

I'm trying to control a game (my two test games are Half Life 2 and Minecraft) using my Kinect ... .com/questions/14489013/simulate-python-keypresses-for-controlling-a-game...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

418 views

1 answer

Android: How to make TextView editable?

How can I allow user to edit a TextView? Of course, I can use EditText instead, but I don't know ... ://stackoverflow.com/questions/12056054/android-how-to-make-textview-editable...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

514 views

1 answer

sql server - Maintenance Plan Execute option is greyed out

When I go to SQL Server Management Studio -> Management -> Maintenance Plans -> Right click on the ... .com/questions/30573729/maintenance-plan-execute-option-is-greyed-out...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

490 views

1 answer

Java String validation using enum values and annotation

I want to validate a string against a set of values using annotations. What I want is basically this: ... /questions/6294587/java-string-validation-using-enum-values-and-annotation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

postgresql - Postgres drop database error: pq: cannot drop the currently open database

I'm trying to drop the database I'm currently connected to like so, but I'm getting this error: pq: ... /postgres-drop-database-error-pq-cannot-drop-the-currently-open-database...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

186 views

1 answer

python - Algorithm to find which number in a list sum up to a certain number

I have a list of numbers. I also have a certain sum. The sum is made from a few numbers from my list (I may/ ... algorithm-to-find-which-number-in-a-list-sum-up-to-a-certain-number...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

How to disable night mode in my application even if night mode is enable in android 9.0 (pie)?

I created my application before the android pie has been released, in every layout I put android: background = "white" ... -in-my-application-even-if-night-mode-is-enable-in-andr...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

linux - EC2 ssh Permission denied (publickey,gssapi-keyex,gssapi-with-mic)

I got this permission denied problem when I want to ssh to my ec2 host. I tried existing solution chmod ... /ec2-ssh-permission-denied-publickey-gssapi-keyex-gssapi-with-mic...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

200 views

1 answer

Why some commands in vim require a colon while some don't?

Some of the commands in vim are given by first typing a colon (:) eg . :wq for saving a file and quitting ... /14051712/why-some-commands-in-vim-require-a-colon-while-some-dont...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

165 views

1 answer

Why is 'char' signed by default in C++?

Why is char by default in the range from -128 to 127 when it is supposed to represent a 'character' whose ... .com/questions/17097537/why-is-char-signed-by-default-in-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

131 views

1 answer

javascript - Vue.js: can't orderBy in v-for

I've upgraded to Vue.js 2.0.5 and orderBy in a v-for seems to not be working anymore <li v-for="c in ... :https://stackoverflow.com/questions/40512585/vue-js-cant-orderby-in-v-for...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

146 views

1 answer

python - Spark union of multiple RDDs

In my pig code I do this: all_combined = Union relation1, relation2, relation3, relation4, relation5, ... /stackoverflow.com/questions/33743978/spark-union-of-multiple-rdds...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.3k views

1 answer

pdf generation - Header in PDF page using DOMPDF in PHP

I am creating a PDF file using DOMPDF. I have a big content to extract in PDF, we need some header in ... stackoverflow.com/questions/7484318/header-in-pdf-page-using-dompdf-in-php...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

279 views

1 answer

Rails association - how to add the 'has_many' object to the 'owner'

In my app, a user has many score_cards and a score_card belongs to a user The question is, whenever I create a new ... rails-association-how-to-add-the-has-many-object-to-the-owner...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

315 views

1 answer

How to checkout old git commit including all submodules recursively?

I have a git repo with multiple submodules. One of those submodules has multiple submodules of it's own. ... /how-to-checkout-old-git-commit-including-all-submodules-recursively...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

67 views

1 answer

How to retrieve data from a SQL Server database in C#?

I have a database table with 3 columns firstname, Lastname and age. In my C# Windows application I have 3 textboxes called ... /how-to-retrieve-data-from-a-sql-server-database-in-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

390 views

1 answer

memory management - How to get linux kernel page size programmatically

I am working on a Linux module for IA64. My current problem is that the driver uses the PAGE_SIZE and ... com/questions/4888067/how-to-get-linux-kernel-page-size-programmatically...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

169 views

1 answer

oop - Can anyone provide an example of the Liskov Substitution Principle (LSP) using Vehicles?

The Liskov Substitution Principle states that a subtype should be substitutable for that type (without altering the ... -example-of-the-liskov-substitution-principle-lsp-using-v...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

378 views

1 answer

google chrome - Inject HTML into a page from a content script

I am building a Chrome Extension and I have a requirement to overlay a blob of html on top of a few websites ... /questions/16334054/inject-html-into-a-page-from-a-content-script...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

250 views

1 answer

dart - Flutter - How does it work behind the scenes?

Obviously, flutter is a framework for running apps on iOS and Android using one codebase. But how does it manage ... /questions/43854647/flutter-how-does-it-work-behind-the-scenes...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

172 views

1 answer

asp.net - How to create a session using JavaScript?

How to create session in JavaScript? I try like this: <script type="text/javascript" > { Session["controlID ... .com/questions/2257631/how-to-create-a-session-using-javascript...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags