Deserializing polymorphic json classes without type information using json.net

Deserializing polymorphic json classes without type information using json.net

This Imgur api call returns a list containing both Gallery Image and Gallery Album classes represented in json.I cant see how to deserialize these automatically using Json.NET given that there is no $type property telling the deserializer w

How to refresh Android listview?

How to refresh Android listview?

How to refresh an Android ListView after adding/deleting dynamic data? 1:Call notifyDataSetChanged() on your Adapter object once you've modified the data in that adapter. Some additional specifics on how/when to call notifyDataSetChanged

How should I convert a string to an enum in C#?

How should I convert a string to an enum in C#?

What's the best way to convert a string to an enumeration value in C#?I have an HTML select tag containing the values of an enumeration. When the page is posted, I want to pick up the value (which will be in the form of a string) and conver

Standard Android Button with a different color

Standard Android Button with a different color

I'd like to change the color of a standard Android button slightly in order to better match a client's branding.The best way I've found to do this so far is to change the Button's drawable to the following drawable located in res/drawable/r

Pass correct “this” context to setTimeout callback? [duplicate]

Pass correct “this” context to setTimeout callback? [duplicate]

This question already has an answer here: How to access the correct `this` inside a callback? 6 answers How do I pass context into setTimeout? I want t

The application may be doing too much work on its main thread

The application may be doing too much work on its main thread

I am new to Android SDK/API environment. It's the first I am trying to draw a plot/chart. I tried running different kinds of sample codes the emulator using 3 different free libraries, nothing is showing in the layout screen. The logcat is

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

generate days from date range

generate days from date range

I would like to run a query likeselect ... as days where `date` is between '2010-01-20' and '2010-01-24'And return data like: days----------2010-01-202010-01-212010-01-222010-01-232010-01-24 1:This solution uses no loops, procedures, or

Stop EditText from gaining focus at Activity startup

Stop EditText from gaining focus at Activity startup

I have an Activity in Android, with two elements:EditText ListViewWhen my Activity starts, the EditText immediately has input focus (flashing cursor). I don't want any control to have input focus at startup. I tried:EditText.setSelected(fal

CHECK constraint in MySQL is not working

CHECK constraint in MySQL is not working

First I created a table likeCREATE TABLE Customer ( SD integer CHECK (SD > 0), Last_Name varchar (30), First_Name varchar(30));and then inserted values in that tableINSERT INTO Customer values ('-2','abc','zz');MySQL doesn't show an erro

Select rows from a DataFrame based on values in a column in pandas

Select rows from a DataFrame based on values in a column in pandas

How to select rows from a DataFrame based on values in some column in pandas?In SQL I would use: select * from table where colume_name = some_value. I tried to look at pandas documentation but did not immediately find the answer. 1:To se

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

I need to convert the Excel matrix FIRST in the table LATER: FIRST: P1 P2 P3 P4F1 XF2 X XF3 X XF4 X XLATER:F P VALUEF1 P1 XF1 P2F1 P3F1 P4F2 P1 XF2 P2 XF2 P3F2

Symbolicating iPhone App Crash Reports

Symbolicating iPhone App Crash Reports

I'm looking to try and symbolicate my iPhone app's crash reports.I retrieved the crash reports from iTunes Connect. I have the application binary that I submitted to the App Store and I have the dSYM file that was generated as part of the b

Split comma-separated column into separate rows

Split comma-separated column into separate rows

I have a data frame, like so:data.frame(director = c("Aaron Blaise,Bob Walker", "Akira Kurosawa", "Alan J. Pakula", "Alan Parker", "Alejandro Amenabar", "Alejandro Gonzalez Inarritu", "Alejand

How to apply CSS to iframe?

How to apply CSS to iframe?

I have a simple page that has some iframe sections (to display RSS links). How can I apply the same CSS format from the main page to the page displayed in the iframe? 1:Edit: This does not work cross domain unless the appropriate CORS he

Is it possible to write a template to check for a function's existence?

Is it possible to write a template to check for a function's existence?

Is it possible to write a template that changes behavior depending on if a certain member function is defined on a class?Here's a simple example of what I would want to write:templatestd::string optionalToString(T* obj){ if (FUN

JavaScript post request like a form submit

JavaScript post request like a form submit

I'm trying to direct a browser to a different page. If I wanted a GET request, I might saydocument.location.href = 'http://example.com/q=a';But the resource I'm trying to access won't respond properly unless I use a POST request. If this we

Is an array name a pointer?

Is an array name a pointer?

Is an array's name a pointer in C?If not, what is the difference between an array's name and a pointer variable? 1:An array is an array and a pointer is a pointer, but in most cases array names are converted to pointers. A term often use

Retrieving the last record in each group - MySQL

Retrieving the last record in each group - MySQL

There is a table messages that contains data as shown below:Id Name Other_Columns-------------------------1 A A_data_12 A A_data_23 A A_data_34 B B_data_15 B B_data_26 C C_data_1If I

Execute .sql schema in psycopg2 in Python

Execute .sql schema in psycopg2 in Python

I have a PostgreSQL schema stored in .sql file. It looks something like:CREATE TABLE IF NOT EXISTS users ( id INTEGER PRIMARY KEY, facebook_id TEXT NOT NULL, name TEXT NOT NULL, access_token TEXT, created INTEGER NOT NULL);Ho

org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]A child cont

org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]A child cont

I am struggling for the past 6-7 hrs trying to figure out what went wrong with my Apache Tomcat Server. In all of my projects, the jdk version got switched to 1.6 from 1.8. To solve the version conflict, I verified whether compiled version

Will ASP.Net MVC's AntiForgeryToken Method work with Load Balancers?

Will ASP.Net MVC's AntiForgeryToken Method work with Load Balancers?

Using ASP.Net MVC v2.0, I am starting to research the use of the Html.AntiForgeryToken() method when submitting forms that process data. I can see it sets a hidden value in the form HTML and it sets the same value in a session cookie. The q

What is the default for AngularJS directive scope?

What is the default for AngularJS directive scope?

What is the default scope value of an AngularJS directive? Of course, it is not isolated scope. It is true or false. I can't find any documentation on what it is. 1: "Note, by default, directives do not create new scope -- i.e., the def

MVC5: Enum radio button with label as displayname

MVC5: Enum radio button with label as displayname

I have these enumspublic enum QuestionStart{ [Display(Name="Repeat till common match is found")] RepeatTillCommonIsFound, [Display(Name="Repeat once")] RepeatOnce, [Display(Name="No repeat")] NoRepeat}public enum Quest

In PHP, how can I add an object element to an array?

In PHP, how can I add an object element to an array?

I'm using PHP. I have an array of objects, and would like to add an object to the end of it.$myArray[] = null; //adds an element$myArray[count($myArray) - 1]->name = "my name"; //modifies the element I just addedThe above is functional, but