Develop Reference

How can I add different examples with different columns in specflow examples

The following code is my Scenario:
Scenario: TradeOrders
Given Order 'SellOrder' Has Been Registerd
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| 0 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 |
And Order 'BuyOrder' Has Been Defined
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| <Buy> | <Price> | <Amount> | <IsFillAndKill> | <ExpireTime> |
When I Register The Order 'BuyOrder'
Then The following 'Trade' will be created
| BuyOrderId | SellOrderId | Amount | Price |
| <BuyOrderId> | <SellOrderId> | <TradeAmount> | <TradePrice> |
And BuyOrder 'BuyOrder' Should Be Modified like this
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| 1 | 100 | 0 | false | 2024-02-05 09:30:26.2080000 |
Examples:
| Buy | Price | Amount | IsFillAndKill | ExpireTime |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 |
Examples:
| <BuyOrderId> | <SellOrderId> | <TradeAmount> | <TradePrice> |
| 1 | 2 | 5 | 100 |
I want to add some examples with different columns but I have faced with below error:
Severity Code Description Project File Line Suppression State
Error Generation error: Message: The example sets must provide the
same parameters.
I appreciate you in advance.

This is not supported in SpecFlow. Since both tables are used in the same scenario, they need to go in the same row. It makes for a wide table, but there isn't anything you can do about it. Second of all, you cannot have < or > tokens in the column headers.
Examples:
| Buy | Price | Amount | IsFillAndKill | ExpireTime | BuyOrderId | SellOrderId | TradeAmount | TradePrice |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 | 1 | 2 | 5 | 100 |
You can also put spaces in the column headers so they are easier to read:
Examples:
| Buy | Price | Amount | Is Fill And Kill | Expire Time | Buy Order Id | Sell Order Id | Trade Amount | Trade Price |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 | 1 | 2 | 5 | 100 |
The choice to include spaces in column headers is subjective. It is supported to aid readability, but feel free to omit spaces if this does not make the examples table easier to understand.

Subclass overrides value of variable in Base class

I have two pages that inherit from the Base class.
In Base, I declared a string, the value of which I set on the A Page. After switching to the B Page, the value of this string is overwritten as empty.
Is there a way to pass this string between these pages?

You are wrong, page A does not share instance data with page B. Although they share the same base class. They are different instances. Inheritance is about extending base classes with extra information. This also means that multiple Page A instances won't share data as well.
+----------------+ +----------------+
| Page A | | Page B |
| +------------+ | | +------------+ |
| | BaseClass | | | | BaseClass | |
| | +--------+ | | | | +--------+ | |
| | | string | | | | | | string | | |
| | +--------+ | | | | +--------+ | |
| +------------+ | | +------------+ |
+----------------+ +----------------+
Who is creating Page A/B? This class can also be responsible to pass data between Page A and B. (passing via contructor/properties)
+------------+
| DataClass |
| +--------+ |
| | string | |
| +--------+ |
+------------+
/ \
+----------------+ +----------------+
| Page A / | | \ Page B |
| +------------+ | | +------------+ |
| | BaseClass | | | | BaseClass | |
| | | | | | | |
| +------------+ | | +------------+ |
+----------------+ +----------------+

For anyone with similar problem I solved it by using design pattern called mono state.
Basically I created public class which has static variables that store values for me. Then I refer to them by creating object of that class.

How to query the sum of each person's availability base on their skill

I'm using sqlite, I've setup three tables.
Table for list of skills this can be expand.
+----+----------+
| ID | Skills |
+----+----------+
| 1 | Swimming |
| 2 | Running |
| 3 | Boxing |
| 4 | Dancing |
| 5 | Singing |
+----+----------+
Table for availability of each person. 0 represents the person is not available.
+-------+-----+-----+-----+-----+-----+-----+-----+
| Names | SUN | MON | TUE | WED | THU | FRI | SAT |
+-------+-----+-----+-----+-----+-----+-----+-----+
| Mark | 0 | 1 | 1 | 1 | 1 | 1 | 0 | (MON-FRI)
| Robin | 0 | 1 | 1 | 1 | 1 | 1 | 0 | (MON-FRI)
| James | 0 | 0 | 1 | 1 | 1 | 1 | 1 | (TUE-SAT)
+-------+-----+-----+-----+-----+-----+-----+-----+
Table for each person skill possess. 1/0 is a boolean value.
+-------+----------+---------+--------+---------+---------+
| Names | Swimming | Running | Boxing | Dancing | Singing |
+-------+----------+---------+--------+---------+---------+
| Mark | 1 | 1 | 1 | 1 | 1 |
| Robin | 1 | 1 | 1 | 1 | 1 |
| James | 1 | 1 | 1 | 1 | 0 |
+-------+----------+---------+--------+---------+---------+
By using the tables above how could I achieved this result to sum each person's availability base on their skill.
Expected Results:
+----------+-----+-----+-----+-----+-----+-----+-----+
| Skills | SUN | MON | TUE | WED | THU | FRI | SAT |
+----------+-----+-----+-----+-----+-----+-----+-----+
| Swimming | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Running | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Boxing | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Dancing | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Singing | 0 | 2 | 3 | 3 | 3 | 3 | 0 |
+----------+-----+-----+-----+-----+-----+-----+-----+

Order by number of entries linq

I'm trying to filter and sort data from a table based on the number of entries in one column
| OrderID | DateOrdered | EnteredById | OtherData | OtherData2 |
-----------------------------------------------------------------------
| 1 | 2/2/2017 | 3 | asdf | sadfsf |
| 2 | 2/2/2017 | 4 | asdf | sadfsf |
| 3 | 2/3/2017 | 4 | asdf | sadfsf |
| 4 | 2/4/2017 | 3 | asdf | sadfsf |
| 5 | 2/4/2017 | 4 | asdf | sadfsf |
| 6 | 2/6/2017 | 5 | asdf | sadfsf |
This is a C# project, there is a working model set up for the table (Orders)
I need to use Linq with Entity to return an array of objects, the whole row, sorted by the number of orders entered by each EnteredById and only where there has been more than one entry by that EnteredById.
In the end, it should be:
| OrderID | DateOrdered | EnteredById | OtherData | OtherData2 |
-----------------------------------------------------------------------
| 2 | 2/2/2017 | 4 | asdf | sadfsf |
| 3 | 2/3/2017 | 4 | asdf | sadfsf |
| 5 | 2/4/2017 | 4 | asdf | sadfsf |
| 4 | 2/4/2017 | 3 | asdf | sadfsf |
| 1 | 2/2/2017 | 3 | asdf | sadfsf |
The code I've written is an absolute mess so I haven't posted it here. Does anybody have the secret Linq answer?

var result = objListOrder.GroupBy(o=>o.EnteredById).Where((x,groupid)=> x.Count()>1).SelectMany((x,groupid)=>x).OrderBy(o=>o.EnteredById);

Recursive function to split list into list [duplicate]

This question already has answers here:
Split a list into sublist by checking a condition on elements
(3 answers)
Closed 8 years ago.
I'm trying to solve the following problem, I have a Collection that contain some data:
+-------------+---------------+-------------+
| Date | InitialValue | FinalValue |
+-------------+---------------+-------------+
| 21.05.2003 | 0 | 382087.14 |
| 23.06.2003 | 408206.52 | 110622.79 |
| 19.07.2004 | 123811.34 | 0 |
| 31.12.2011 | 0 | 0 |
| 08.06.2012 | 0 | 501854.71 |
| 31.12.2012 | 501854.71 | 546208.19 |
| 31.12.2013 | 634535.58 | 666284.47 |
| 30.06.2014 | 666284.47 | 725837.32 |
| 08.07.2014 | 725837.32 | 729646.48 |
+-------------+---------------+-------------+
What I need to do is to split this list into multiple lists when the final value is equal to 0. The expected result should be something like this:
Result list 1
+-------------+---------------+-------------+
| Date | InitialValue | FinalValue |
+-------------+---------------+-------------+
| 21.05.2003 | 0 | 382087.14 |
| 23.06.2003 | 408206.52 | 110622.79 |
| 19.07.2004 | 123811.34 | 0 |
+-------------+---------------+-------------+
Result list 2
+-------------+---------------+-------------+
| Date | InitialValue | FinalValue |
+-------------+---------------+-------------+
| 31.12.2011 | 0 | 0 |
+-------------+---------------+-------------+
Result list 3
+-------------+---------------+-------------+
| Date | InitialValue | FinalValue |
+-------------+---------------+-------------+
| 08.06.2012 | 0 | 501854.71 |
| 31.12.2012 | 501854.71 | 546208.19 |
| 31.12.2013 | 634535.58 | 666284.47 |
| 30.06.2014 | 666284.47 | 725837.32 |
| 08.07.2014 | 725837.32 | 729646.48 |
+-------------+---------------+-------------+
Can somebody give me an elegant way to solve my problem?

You don't always need linq:
var List<Data> myData;
var List<List<Data>> mySplittedData;
mySplittedData.Add(new List<Data>());
foreach(var item in myData)
{
mySplittedData.Last().Add(item);
if(item.FinalValue == 0)
mySplittedData.Add(new List<Data>());
}
Should work although I'm sure someone will come up with a clever one line linq solution :)

I'm not sure if this is elegant, but it uses Linq all the same:
var result = items.Aggregate(new List<List<Item>> { new List<Item>() }, (list, value) =>
{
list.Last().Add(value);
if (value.FinalValue == 0)
{
list.Add(new List<Item>());
}
return list;
});

Psuedo code
while (more result) {
list = input.Skip(n).TakeWhile(not 0)
n += list.Count()
use or store list
}
Not the most elegant, as the skip will have to skip over the first element of input many times, but might get you started.