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I am using List in C#. Code is as mentioned below:
TestCase.cs
public class TestCase
{
private string scenarioID;
private string error;
public string ScenarioID
{
get
{
return this.scenarioID;
}
set
{
this.scenarioID = value;
}
}
public string Error
{
get
{
return this.error;
}
set
{
this.error = value;
}
}
public TestCase(string arg_scenarioName, string arg_error)
{
this.ScenarioID = arg_scenarioName;
this.Error = arg_error;
}
}
List I am createing is:
private List<TestCase> GetTestCases()
{
List<TestCase> scenarios = new List<TestCase>();
TestCase scenario1 = new TestCase("Scenario1", string.Empty);
TestCase scenario2 = new TestCase("Scenario2", string.Empty);
TestCase scenario3 = new TestCase("Scenario1", string.Empty);
TestCase scenario4 = new TestCase("Scenario4", string.Empty);
TestCase scenario5 = new TestCase("Scenario1", string.Empty);
TestCase scenario6 = new TestCase("Scenario6", string.Empty);
TestCase scenario7 = new TestCase("Scenario7", string.Empty);
scenarios.Add(scenario1);
scenarios.Add(scenario2);
scenarios.Add(scenario3);
scenarios.Add(scenario4);
scenarios.Add(scenario5);
scenarios.Add(scenario6);
scenarios.Add(scenario7);
return scenarios;
}
Now I am iterating through the list. I want to find the how many duplicate testcases are there in a list with same ScenarioID. Is there any way to solve it using Linq or any inbuilt method for List?
Regards, Priyank
778
To count the duplicates in an array:Declare an empty object variable that will store the count for each value. Use the forEach() method to iterate over the array. On each iteration, increment the count for the value by 1 or initialize it to 1 .
To count total duplicate elements in given array we need two loops. Run an outer loop loop from 0 to size . Loop structure must look like for(i=0; i<size; i++) . This loop is used to select each element of array and check next subsequent elements for duplicates elements using another nested loop.
1) Split the total number of reps into thirds This is currently the way I count reps: If I'm doing a set of 8, I'll count “1, 2, 3” twice and then “1, 2” at the end. If I'm doing a set of 10, I'll count to four twice and then have just two at the end. By narrowing my focus, the set seems to go by much quicker.
Try this:
var numberOfTestcasesWithDuplicates =
scenarios.GroupBy(x => x.ScenarioID).Count(x => x.Count() > 1);
As a first idea:
int dupes = list.Count() - list.Distinct(aTestCaseComparer).Count();
To just get the duplicate count:
int duplicateCount = scenarios.GroupBy(x => x.ScenarioID)
.Sum(g => g.Count()-1);
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