Question

I have a list which contains

1. The Price
2. The Code

I’ve managed to split the list to an array, but I want to further split the array so that I can get the Price and Code separately and sort the Price to ascending order. When the sorting occurs, I need the Code to be sorted together as well because the Price is for that particular Code.

So it will be like this:
Original List:

1588,8DNY;1488,ACNY;1288,7DPE;1888,8HUC;1488,8WNH;

After Splitting to arrPrice:

[1588,8DNY],[1488,ACNY],[1288,7DPE],[1888,8HUC],[1488,8WNH]

2nd Splitting 2ndarrPrice:

[1588],[1488],[1288],[1888],[1488]

2nd Splitting 2ndarrCode:

[8DNY],[ACNY],[7DPE],[8HUC],[8WNH]

Sort Price in ascending order:

[1288],[1488],[1488],[1588],[1888]

Code will be sorted accordingly:

[7DPE],[ACNY],[8HUC],[8WNH]

I am stuck after the 1st splitting.

  if (lblprices.Text != "")
    {
        arrprice = lblprices.Text.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);

        Array.Sort(arrprice);

        for (i = 0; i < arrprice.Length; i++)
        {
            arr2 = arrprice[i].Split(',');
            SQL2 = "SELECT DISTINCT [TP].[TCode], ";
            SQL2 += "[TP].[TName], ";
            SQL2 += "[TP].[TName_CN],  ";
            SQL2 += "[TP].[TourType], ";
            SQL2 += "[TP].[LastUpdateDate], ";
            SQL2 += "[TP].[ValidityFrom],  ";
            SQL2 += "[TP].[ValidityTo], ";
            SQL2 += "[CL].[CountryCode], ";
            SQL2 += "[CL].[CityName] ";

            SQL2 += "FROM [CL], [TP], [TourItinerary],[TourHotel] ";

            SQL2 += "WHERE [TP].[Activation] = 1  ";
            SQL2 += "AND [TP].[TCode] = '" + arr2[1] + "' ";
            SQL2 += "ORDER BY [TP].[LastUpdateDate] DESC ";

            objConnTour.Open();

            SqlCommand command = new SqlCommand(SQL2, objConnTour);
            SqlDataReader dataReader = command.ExecuteReader();

            if (dataReader.Read())
            {
                html += "<tr><td class=\"border\">" + dataReader["TCode"] + "</td>";
                html += "<td class=\"border\">" + dataReader["TName"] + "</td>";
                html += "<td class=\"border\">" + dataReader["TName_CN"] + "</td>";
                html += "<td class=\"border\">" + dataReader["TType"] + "</td>";
                html += "<td class=\"border\">" + dataReader["LastUpdateDate"] + "</td>";
                html += "<td class=\"border\">" + dataReader["ValidityFrom"] + "</td>";
                html += "<td class=\"border\">" + dataReader["ValidityTo"] + "</td>";
                html += "<td class=\"border\">" + dataReader["CountryCode"] + "</td>";
                html += "<td class=\"border\">" + dataReader["CityName"] + "</td>";
                html += "<td class=\"border\">from&nbsp;<span class=\"price-red\">S$<b>" + arr2[0] + "</b></span><td/></tr>";
            }

            dataReader.Close();

            objConnTour.Close();
        }
    }
    return html;

The code above will not be able to sort the price in ascending order. As you can see in my arr2 split, I need the Code and Price together as I will be retrieving data from database based on the Code.

——–Edit———

Ok so the problem is that if the prices are in the of 1000-1999, it gets sorted perfectly.
But if i have prices that is less than 1000, it will not be sorted in an ascending manner

Example are the screenshots of the results using the code provided by @jekcom

This is when i haven’t split the List and retrieve them raw from the database

And this is the Sorted one using @jekcom’s code

Notice how the Price are not sorted in Ascending manner.

Answer 1

The code you posted doesn’t work since you’re not sorting the array based on Price part of the array. If you have Linq:

if (lblprices.Text != "")
{
    arrprice = lblprices.Text.Split(new char[] { ';' }, 
                                    StringSplitOptions.RemoveEmptyEntries);
    var lst = arrprice.OrderBy(x => int.Parse(x.Split(',')[0])).ToList();

    for (i = 0; i < lst.Count; i++)
    {
        arr2 = lst[i].Split(',');

        //rest of your code ----------------
    }

This should work, in sql terms this should give

ORDER BY PRICE ASC, [TP].[LastUpdateDate] DESC