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angular - TypeError: You provided an invalid object where a stream was expected. You can provide an Observable, Promise, Array, or Iterable

I am trying to map from a service call but getting an error. Looked at subscribe is not defined in angular ... , Promise, Array, or Iterable See Question&Answers more detail:os...

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asp.net - 'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension method

I made a console app to consume a Web API I just made. The console app code does not compile. It gives me ... consumed it from an MVC client. See Question&Answers more detail:os...

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

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c# - Class Mapping Error: 'T' must be a non-abstract type with a public parameterless constructor

While mapping class i am getting error 'T' must be a non-abstract type with a public parameterless ... a Parameterless Public constructor. See Question&Answers more detail:os...

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

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sql - Select first record in a One-to-Many relation using left join

I'm trying to join two tables using a left-join. And the result set has to include only the first record ... other rows. Please help! Thanks See Question&Answers more detail:os...

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mysql real escape string - PHP mysql_real_escape_string() -> stripslashes() leaving multiple slashes

I'm having issues escaping/stripping strings with PHP/MySQL - there always seems to be redundant slashes. Let' ... this the correct 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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c# - Check if an application is idle for a time period and lock it

In my project I need an application lock (same as windows lock). If the application is idle for a time period ... it in a WPF C# application? See Question&Answers more detail:os...

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Finding second occurrence of a substring in a string in Java

We are given a string, say, "itiswhatitis" and a substring, say, "is". I need to find the index of 'i' ... the output to be 10 in this case. See Question&Answers more detail:os...

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java - How can I find whitespace in a String?

How can I check to see if a String contains a whitespace character, an empty space or " ". If possible, ... example: String = "test word"; See Question&Answers more detail:os...

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Problem sending JSON data from JQuery to WCF REST method

I'm having some trouble getting jquery to post some json data to a rest method I have on my WCF service ... and deals with the request normally. See Question&Answers more detail:os...

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c - How to resolve the "EVP_DecryptFInal_ex: bad decrypt" during file decryption

I have the following query.Could any one please suggest me a solution. I'm working on encryption and decryption of ... return 0; } 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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php - How to select rows where column value IS NOT NULL using CodeIgniter's ActiveRecord?

I'm using CodeIgniter's Active Record class to query the MySQL database. I need to select the rows in a ... Active Record throughout my code. See Question&Answers more detail:os...

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php - How to wrap long lines without spaces in HTML?

If a user types in a long line without any spaces or white space, it will break formating by going wider than ... How do you solve this problem? See Question&Answers more detail:os...

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unit testing - Disable @EnableScheduling on Spring Tests

When I run my unit tests, it invokes my scheduled tasks. I want to prevent this behaviour, which is caused by the fact ... (items.size()>0); } } 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 do I make a portion of a Checkbox's text clickable?

I'm trying to create a link in my textbox's adjacent text. This link however is not a URL, but should ... I accomplish this? 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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vba - How to name an object within a PowerPoint slide?

So I know how to name a textbox, or a like object in PowerPoint with VB, but I was wondering if there was ... an easier way through the Ribbon? See Question&Answers more detail:os...

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

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Emacs shell scripts - how to put initial options into the script?

Inspired by Stack Overflow question Idomatic batch processing of text in Emacs? I tried out an Emacs shell script ... later on the commandline? See Question&Answers more detail:os...

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

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C++ format macro / inline ostringstream

I'm trying to write a macro that would allow me to do something like: FORMAT(a << "b" << c << d), and ... But is there a way to solve this now? 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 code to take a screenshot of a website without using ActiveX

I have a JavaScript application that an user interacts with. I need to save the appearance of the interface at ... says, I cannot use ActiveX. 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 - jQuery - bind event on Scroll Stop

If i want to bind an event on page scrolling i can use scroll();. But how to fire when scroll() is ended ... /do somenthing else }); any ideas? See Question&Answers more detail:os...

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java - Android Row becomes Unclickable with Button

I have a listView, where each row has a button in the row layout. However, this seems to make the row ... the button and row clickable? Thanks. 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 - Hide application icon

I am doing an Android application. I want to hide the application icon in the emulator and I want to start my ... there a way to do this? See Question&Answers more detail:os...

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

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exception - Python: try statement in a single line

Is there a way in python to turn a try/except into a single line? something like... b = 'some variable' a = ... an error and a would become b... See Question&Answers more detail:os...

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

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disable textbox using jquery?

I have three radio buttons with same name and different values.When I click the third radio button the checkbox and ... "usertxtbox" /> </form> 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 - To run dex in process, the Gradle daemon needs a larger heap. It currently has approximately 910 MB

I am getting this Gradle error every time I run my app. The error is: To run dex in process, ... :decoupled_projects # org.gradle.parallel=true See Question&Answers more detail:os...

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

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In R data.table, how do I pass variable parameters to an expression?

I am stuck with a small R issue with data.table. Your help is much appreciated. How do I do this: ... Sepal.Length) which seems to 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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javascript - return false the same as return?

Is return false the same as: return See Question&Answers more detail:os...

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

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c# - Deserialize JSON to anonymous object

In C#, I am have successfully serialized an anonymous object into JSON by use of code like this... var obj = ... not sure what this error means. 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 can I pass variables from awk to a shell command?

I am trying to run a shell command from within awk for each line of a file, and the shell command needs one input ... '{system("wc $1")}' myfile See Question&Answers more detail:os...

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

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