iam looking to print totalmarkswise as ascending order but iam getting problem

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C#

private static void OrderStudentsByMarks(List<DataRow> students)
        {
            SortedList<int, List<DataRow>> TotalMarkswise = new SortedList<int, List<DataRow>>();
            foreach (DataRow dr in students)
            {

                TotalMarkswise.Add(Convert.ToInt16(dr["TotalMarks"]),students);
            }

                Console.WriteLine("ID | Name | Age | Class | Branch | Total Marks");
            foreach (DataRow dr in students )
            {
                Console.WriteLine(dr["ID"] + " | " + dr["Name"] + " | " + dr["Age"] + " | " + dr["Class"] + " | " + dr["Branch"] + " | " + dr["TotalMarks"]);
            }
            Console.ReadLine();
        }

Posted 30-Dec-15 6:51am

Member 12185899

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Dave Kreskowiak 30-Dec-15 13:57pm

You might want to tell us what the problem is. It's hard to solve a problem if you can't define it.

2 solutions

Solution 2

select [col]+[col]+[col] as totalMarks from [TableName] order by totalMarks

Posted 30-Dec-15 23:20pm

Member 11449483

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OriginalGriff · Accepted Answer · 2015-12-30T08:02:00

Well...perhaps if you tried printing from the SortedList instead of from the data source you used to fill it?
At the moment, you use the students DataTable to fill the SortedList, but then you loop through the DataTable a second time and print from that, ignoring the list you just created completely...
And why are you adding teh whole table each time?
Try this:

C#

private static void OrderStudentsByMarks(List<DataRow> students)
        {
            SortedList<int, DataRow> TotalMarkswise = new SortedList<int, DataRow>();
            foreach (DataRow dr in students)
                {
                TotalMarkswise.Add((int)dr["TotalMarks"],dr);
                }
 
                Console.WriteLine("ID | Name | Age | Class | Branch | Total Marks");
            foreach (var kvp in TotalMarkswise)
                {
                DataRow dr = kvp.Value;
                Console.WriteLine(dr["ID"] + " | " + dr["Name"] + " | " + dr["Age"] + " | " + dr["Class"] + " | " + dr["Branch"] + " | " + dr["TotalMarks"]);
            }
            Console.ReadLine();
        }