Member '<member name>' cannot be accessed with an instance reference

I am getting into C# and I am having this issue: namespace MyDataLayer { namespace Section1 { public class MyClass { public class MyItem { ...

org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject

I m trying to do a registration page from an android activity connectiong the datas to my sqldatabase, I m getting this error " org.json.JSONException: Value <br of type java.lang.String cannot be...

Sorting list of apps

I use the following code to get a list of all applications on my Android tablet and sort them alphabetically by name. But for some reason it doesn't work - it leaves the list unchanged. //load...

QSettings is not working proprely on Qt under Android

I want to save some user credentials in my qt application that runs on Android. I use QSettings for this like so: QString appPath = QCoreApplication::applicationDirPath()+QLatin1Char('/'); set =...

How to decode gzip or utf-8 response in node?

I am using node request module to do some get request.I am getting the response body like { body: '\u001f?\b\u0000\u0000\u0000\u0000\u0000...............' } i have the header parameters and...

netbeans sql's statment using Like operator

I am trying to pass value from Jcombobox and I used Like Operator in order to retrieve data from Database .. I need to retrieve all data related to a chosen month from combobox String sql =...

C# Login page. SQL Server " sda.Fill(dt); " ERROR

I was watching this video https://www.youtube.com/watch?v=tcmmCcMs8yU . It basically teaches me how to create my own login page using SQL Server. So after following exactly what he did, when I...

Spring dependency @PostConstruct

Say I have this dependency in a Spring @Configuration: @Bean public SomeClass someClass(SomeClass1 someClass1, SomeClass2 someClass2, ...) { return new SomeClass(someClass1, someClass2,...

notifyItemInserted() in RecyclerView and animation

When I'm adding a new item, I'm calling method public void addItem(ArrayList<ArrayList<String>> arrayList, int position){ this.arrayList=arrayList; notifyItemInserted(position); } and...

How to get multiple rows from Datareader

This is the code I have. It works fine but returns only one row. As you can see in the SQL Statement I need 2 rows returned in the datagrid that I use in the form. While the procedure reads 2 rows...

Retrofit 2.0.2 get error string body

I use Retrofit 2.0.2 and I can't get error body json and convert it. Here my code: public RestClient() { retrofit = new Retrofit.Builder() .baseUrl(BASE_URL) ...

How to implement Role Permission based system in Spring Boot

I am trying to implement role permissions based system using spring boot and spring security. For this, I have taken an example from...

Exclude testing device from Firebase Analytics logging

I am sure that Firebase is counting all my development work too in its analytics. I open my app like hundred times a day to debug and test on a few devices, it's really skewing up my readings. I...

cannot find symbol class NotificationManagerCompat

I am trying to build a notification method that would result in a notification appearing on the locked screen when a particular beacon is detected. My understanding is that I need to include...

Array.Clear() vs Buffer.BlockCopy()

Background I have to clear fixed-length managed byte arrays (ex: byte[4096]) very frequently. My question is seeking an answer that applies to generic-usage, but for those who are wondering...

WebClient UploadData gives 400 Bad Request error while posting json data with extended ascii characters

I am trying to sync contact with mailchimp. When i have extended ascii characters such as (Johéctíóú Diamond) in contact details it gives below error. The remote server returned an error:...

Spring Boot - JpaRepository.findAll not returning data

I have a simple Spring Boot app. Entity: package com.example.demo; import javax.persistence.Entity; import javax.persistence.EntityListeners; import javax.persistence.GeneratedValue; import...

Custom spring security filter not called at runtime

I'm trying to enable spring security in a spring boot rest services project and I'm getting some problems. I configured it with this code @Configuration @EnableWebSecurity public class WebSecurity...

Invoke-ASCmd cmdlet output to e-mail body

I am a newbie in Powershell... Hope you can help me. I have a script that is refreshing the database (tabular model) on Azure Analysis Services. The script is supposed to refresh all the tables...

WPF Notify content change when it's property changed

I've set label Content to some custom class: <Label> <local:SomeContent x:Name="SomeContent" some="abc" /> </Label> This properly displays "abc" in a view. However I can't figure out how do I...

Adding padding to TableRow

I'm trying to add padding to my table rows. This is what I have: var list = (report['items'] as List) .map((item) => TableRow(children: [ Text(item['place']), ...

How prevent Object.keys() sort?

The problem with the ECMA standard for sort of Object.keys() is known: Object.keys() handle all keys with integer (example: 168), including integer as strings (example: "168"), as a integer. The...

How to get data from database and send it as sms?

The application that I'm creating needs to send sms to the phone number. The body of the sms consists of data from the database. public void MyMessage() { Cursor cursor =...

Flutter Bluetooth printing to Zebra

I need to add printing functionality on a zebra zq520 bluetooth thermal printer. I manage to do so using the flutter_blue plugin and the code below but I am not happy with the implementation. I...

Spring data mongoDB : Find all by child object id with Example Executor and Pageable

I am facing issue in querying repository with find all by child object ID, Example and Pageable. StudentController.java @RestController @RequestMapping("/students") public class StudentController...

ClientAbortException with Spring Boot on downloading large files

Sometimes when downloading a large file (~1GB) from my Spring Boot application a ClientAbortException occurs. I am using "org.springframework.boot:spring-boot-starter-web:2.3.4.RELEASE" from maven...

Spring Boot warning: Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported]

I have been digging around on the web and here the last two days to try to find a solution to this and I am coming up empty-handed. The application seems to function normally but I keep getting...

Log4j2 pattern layout not appending the correlation Id

I'm using HandlerInterceptorAdapter to generate correlation id for each service request. Here is the configuration I'm using. I'm trying to append the correlation id on my console log as shown in...

How to properly transfer Solana SOL using web3js via Phantom

Am working with Solana Blockchain. Am trying to transfer Solana SOL via Phantom. To this effect I used the code below which was leveraged in stackoverflow. source link I already have Phantom...

Using SMOTE on java raises Comparison method violates its general contract

I'm working on a project in java and I need to use Weka's API. I use Maven to manage dependencies and, in particular, I have the following one: <dependency> ...