Turning query errors to Exceptions in MySQLi

Turning query errors to Exceptions in MySQLi

I'm trying to turn MySQLi query errors to Exceptions, but couldn't - mysqli_sql_exception is thrown only if it failed to connect the DB.I used mysqli_report(MYSQLI_REPORT_STRICT) and procedural MySQLi functions embedded to custom wrapper cl

How to stop BackgroundWorker on Form's Closing event?

How to stop BackgroundWorker on Form's Closing event?

I have a form that spawns a BackgroundWorker, that should update form's own textbox (on main thread), hence Invoke((Action) (...)); call.If in HandleClosingEvent I just do bgWorker.CancelAsync() then I get ObjectDisposedException on Invoke(

The infamous java.sql.SQLException: No suitable driver found

The infamous java.sql.SQLException: No suitable driver found

I'm trying to add a database-enabled JSP to an existing Tomcat 5.5 application (GeoServer 2.0.0, if that helps).The app itself talks to Postgres just fine, so I know that the database is up, user can access it, all that good stuff. What I'm

Insert into … values ( SELECT … FROM … )

Insert into … values ( SELECT … FROM … )

I am trying to INSERT INTO a table using the input from another table. Although this is entirely feasible for many database engines, I always seem to struggle to remember the correct syntax for the SQL engine of the day (MySQL, Oracle, SQL

Why does list.append evaluate to false in a boolean context?

Why does list.append evaluate to false in a boolean context?

Is there a reason being list.append evaluating to false? Or is it just the C convention of returning 0 when successful that comes into play?>>> u = []>>> not u.append(6)True 1:Most Python methods that mutate a container in-place return N

How to download and save a file from Internet using Java?

How to download and save a file from Internet using Java?

There is an online file (such as http://www.example.com/information.asp) I need to grab and save to a directory. I know there are several methods for grabbing and reading online files (URLs) line-by-line, but is there a way to just download

How to check internet access on Android? InetAddress never times out

How to check internet access on Android? InetAddress never times out

I got a AsyncTask that is supposed to check the network access to a host name. But the doInBackground() is never timed out. Anyone have a clue?public class HostAvailabilityTask extends AsyncTask { private Main main

FileOutputStream: Does the “close” method calls also “flush”?

FileOutputStream: Does the “close” method calls also “flush”?

I'm really confused about flush and close method.In my code I always close my FileOutputStream object. But I want to know that if I have to use flush method here, and where can I use it?I will write a project that download 4 or 5 files repe

Splitting filenames using system file separator symbol

Splitting filenames using system file separator symbol

I have a complete file path and I want to get the file name.I am using the following instruction:String[] splittedFileName = fileName.split(System.getProperty("file.separator"));String simpleFileName = splittedFileName[splittedFileName.leng

Can I generate script of a migration with EF code first and .net core

Can I generate script of a migration with EF code first and .net core

I'm building a MVC application with .Net Core and I need to generate the script of a migration.With EF6 I did run the command update-database -scriptbut when I try to do the same with .net Core is throwing the next exception: Update-Databa

Spark-submit ClassNotFound exception

Spark-submit ClassNotFound exception

I'm having problems with a "ClassNotFound" Exception using this simple example:import org.apache.spark.SparkContextimport org.apache.spark.SparkContext._import org.apache.spark.SparkConfimport java.net.URLClassLoaderimport scala.util.Marsha

How to specify SSL protocol to use for WebClient class

How to specify SSL protocol to use for WebClient class

I have an application that sends data to a server using an HTTPS POST. I use a System.Net.WebClient object to do this. Here is a function that sends some data: private byte[] PostNameValuePairs(string uri, NameValueCollection pairs)

Pyramid: Custom 404 page returns as “200 OK”

Pyramid: Custom 404 page returns as “200 OK”

I have a custom 404 view defined in my Pyramid app:@view_config(context=HTTPNotFound, renderer='404.pt')def not_found(self, request): return {}It works fine, except that the HTTP status code sent with the content is 200 OK, which is not

Getting Nested Object Property Value Using Reflection

Getting Nested Object Property Value Using Reflection

I have the following two classes:public class Address{ public string AddressLine1 { get; set; } public string AddressLine2 { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { g

Query MongoDB Using 'ObjectId'

Query MongoDB Using 'ObjectId'

I have inserted documents into MongoDB without an id. And I want to retrieve them by searching through their MongoDB ObjectId, that has been assigned in default.Here is my attempt-var query_id = Query.EQ("_id", "50ed4e7d5baffd13a44d0153");v

C#: Any benefit of List.ForEach(…) over plain foreach loop?

C#: Any benefit of List.ForEach(…) over plain foreach loop?

I'm wondering why List.ForEach(Action) exists.Is there any benefit/difference in doing :elements.ForEach(delegate(Element element){ element.DoSomething(); });overforeach(Element element in elements) { element.DoSomething();}? 1:One key d

Force break on any exception thrown in program

Force break on any exception thrown in program

When coding in C# I like not to handle exceptions because it makes it easier to figure out where and why things went wrong. However, I can't give anyone a program that doesn't handle exceptions.Can I somehow force Visual Studio to break on

Control for displaying multiline text?

Control for displaying multiline text?

I need to display a multiline, read-only text - which control can be used for that? It should only dislay the text, like a Label does, however Label does not support multiline?Thanks for any hint :-) 1:You can display multi-line read-onl

How to write nullable int in java?

How to write nullable int in java?

I want to convert a web form to a model in Java.In C# I can write this:public class Test{ public int? Id{get;set;}}The id can be null.But in Java when using struts2 it throws an exception:Method "setId" failedSo how to write this case in

NUnit: test with NO expected exception

NUnit: test with NO expected exception

I want to create NUnit test to ensure that my function does not throw an exception. Is there some specific way to do it, or I should just write[Test]public void noExceptionTest() { testedFunction();}and it will succeed if no exception is t

SignalR 2.0 error: Could not load file or assembly Microsoft.Owin.Security

SignalR 2.0 error: Could not load file or assembly Microsoft.Owin.Security

I'm following this tutorial step by stephttp://www.asp.net/signalr/overview/signalr-20/getting-started-with-signalr-20/tutorial-signalr-20-self-hostAnd I'm getting an exception on the line marked below string url = "http://localhost:

How are denormalized floats handled in C#?

How are denormalized floats handled in C#?

Just read this fascinating article about the 20x-200x slowdowns you can get on Intel CPUs with denormalized floats (floating point numbers very close to 0).There is an option with SSE to round these off to 0, restoring performance when such

Unable to open debugger port : java.net.SocketException “Socket closed”

Unable to open debugger port : java.net.SocketException “Socket closed”

I get this error when trying to debug an Android app on Android Studio (v.0.4.4):Error running [assembleDebug]: Unable to open debugger port : java.net.SocketException "Socket closed"The app compiles, and can be pushed to the phone using a

jQuery under SVG

jQuery under SVG

Is there any way I can run jQuery under SVG instead of HTML?I know about jQuery svg plugin but this is not what I want. As for now the jQuery engine contains some statements like this:div = document.createElement("div");div.style.display =

How to show message if no internet available in my android webview

How to show message if no internet available in my android webview

Hi I am working with android webview application.I uses my the url succesfully in my app and it works only if internet connection available .But I want to show some messages when there is no internet connection.how can i do this ???please h