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vb.net - How can I run code in a background thread and still access the UI?

I made a file search program in visual studio on windows 10 using .net lang, My problem starts from form1 ... loop crashes im using framework 4.6.2 developer Question&Answers:os...

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javascript - Why is value undefined at .then() chained to Promise?

Given function doStuff(n /* `n` is expected to be a positive number */) { return new Promise(function(resolve, reject ... .log(data) // `undefined`, why? }) Question&Answers:os...

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html - Make background color extend into overflow area

If the total content height of the parent is 10,000px but the overflow: auto element is rendered with a height of 700px ... order: 3;.</footer> </body> </html> Question&Answers:os...

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python - Keras not training on entire dataset

So I've been following Google's official tensorflow guide and trying to build a simple ... /colab.research.google.com/drive/1NdtzXHEpiNnelcMaJeEm6zmp34JMcN38 Question&Answers:os...

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php - mysqli_real_escape_string() expects exactly 2 parameters, 1 given

if (phpversion() >= '4.3.0'){ $string = mysqli_real_escape_string($string); }else{ $string = mysqli_escape_string ... () expects exactly 2 parameters, 1 given Question&Answers:os...

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performance - How to write a large buffer into a binary file in C++, fast?

I'm trying to write huge amounts of data onto my SSD(solid state drive). And by huge amounts I mean 80GB. I ... . Any ideas how I can speed up my writing? Question&Answers:os...

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ios - How to use background thread in swift?

How to use threading in swift? dispatchOnMainThread:^{ NSLog(@"Block Executed On %s", dispatch_queue_get_label(dispatch_get_current_queue())); }]; Question&Answers:os...

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Using SSH keys inside docker container

I have an app that executes various fun stuff with Git (like running git clone & git push) and I'm trying to ... "] app.js runs the git commands like git pull Question&Answers:os...

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math - How to determine if a list of polygon points are in clockwise order?

Having a list of points, how do I find if they are in clockwise order? For example: point[0] = (5,0 ... anti-clockwise (or counter-clockwise, for some people). Question&Answers:os...

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c++ - Declaring variables inside loops, good practice or bad practice?

Question #1: Is declaring a variable inside a loop a good practice or bad practice? I've read the other threads ... create a spot for it in memory each time? Question&Answers:os...

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java - Add jars to a Spark Job - spark-submit

True ... it has been discussed quite a lot. However there is a lot of ambiguity and some of the answers ... yarn-cluster). Definitely important to keep in mind. Question&Answers:os...

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objective c - UIRefreshControl without UITableViewController

Just curious, as it doesn't immediately seem possible, but is there a sneaky way to leverage ... rather than using a UITableViewController outright. Question&Answers:os...

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How to add a default include path for GCC in Linux?

I'd like gcc to include files from $HOME/include in addition to the usual include directories, but there doesn' ... approach here, as in the library case. Question&Answers:os...

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ios - 'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of exactly '120x120' pixels, in .png format'

I submitted an app update, but I have received an email telling me this error has occurred: Missing recommended ... /Windows app review people lurk around here. Question&Answers:os...

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callback - What is the purpose of willSet and didSet in Swift?

Swift has a property declaration syntax very similar to C#'s: var foo: Int { get { return getFoo() } set { ... could just have the same code inside the setter? Question&Answers:os...

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c++ - Does the default constructor initialize built-in types?

Does the default constructor (created by the compiler) initialize built-in-types? Question&Answers:os...

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java - How to preserve insertion order in HashMap?

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Session variables in ASP.NET MVC

I am writing a web application that will allow a user to browse to multiple web pages within the website making ... a session variable? Is there any other way? Question&Answers:os...

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excel - Levenshtein Distance in VBA

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xpath - XSLT string replace

I don't really know XSL but I need to fix this code, I have reduced it to make it simpler. I am getting ... stylesheet> Can anyone tell me what's wrong with it? Question&Answers:os...

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java - Convenient way to parse incoming multipart/form-data parameters in a Servlet

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SQL Server Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >=

I run the following query: SELECT orderdetails.sku, orderdetails.mf_item_number, orderdetails.qty, orderdetails.price, ... used as an expression. Any ideas? Question&Answers:os...

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Alternative to performSelector in Swift?

The performSelector family of methods are not available in Swift. So how can you call a method on an @objc ... a way to dynamically choose it at runtime? Question&Answers:os...

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PHP array combinations

I have an array of 7 numbers (1,2,3,4,5,6,7) and I want to choose 5 of the numbers like (1,2,3, ... taken from an array ) put into 5 slots, disregarding order. Question&Answers:os...

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python - Sort list of lists ascending and then descending

If I have a list that contains a list that looks like this ['a',1] ['a',2] ['a',3] ['b', ... key since it needs to first sort descending and then ascending. Question&Answers:os...

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iostream - C++ Standard Library: How to write wrappers for cout, cerr, cin and endl?

I do not like using namespace std, but I am also tired of having to type std:: in front of every cout, cin ... ? Is there a better way to achieve the same? Question&Answers:os...

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html - Disable certain dates from html5 datepicker

Is it possible to disable dates when I use I want to disable current date for one scenario and future dates for other scenario. How should I disable the dates? Question&Answers:os...

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c# - Why does adding a new value to list<> overwrite previous values in the list<>

I'm essentially trying to add multiple items to a list but at the end all items have the same value equal to ... added rows are overwritten tags.Add(_tag); } Question&Answers:os...

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

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