Answered How to compress multi Excel files to zip Archive ?

Post number 2 has been selected as best answer.

ahmedsalah

Member
Joined
Sep 26, 2018
Messages
21
Programming Experience
3-5
I working on c# 5 app create more than excel files xlsx

but I face Issue I cannot compress these files to one file as zip archive .

meaning if result of code below of three files as abc.xlsx and autod.xlsx and mog.xlsx as examples

then create all theses file to one file as zip archive with any name but check file creating by zip for these files

not exist before .

my code as below :
C#:
static void Main(string[] args)
        {
            DataTable dataTable = GetData();

            var res = from row in dataTable.AsEnumerable()
                      group row by row["Files"] into g
                      select g;

            foreach (var item in res)
            {
                CreateWorkbook(item.Key.ToString(), item.AsEnumerable().CopyToDataTable());
            }
        }

        public static void CreateWorkbook(String file, DataTable dt)
        {
            string fileName = file + ".xlsx";
            XLWorkbook workbook;
            if (!File.Exists(fileName))
            {
                workbook = new XLWorkbook();
            }
            else
            {
                workbook = new XLWorkbook(fileName);
            }
            
            var res = from row in dt.AsEnumerable()
                      group row by row["Tab"] into g
                      select g;

            foreach (var item in res)
            {
                DataTable dataTable = item.AsEnumerable().CopyToDataTable();
                workbook.Worksheets.Add(dataTable, dataTable.Rows[0].Field<string>("Tab"));
            }

            workbook.SaveAs(fileName);
        }
        public static DataTable GetData() 
        {
            DataTable dataTable = new DataTable();
            dataTable.Columns.Add("PartId", typeof(int));
            dataTable.Columns.Add("Company", typeof(string));
            dataTable.Columns.Add("Files", typeof(string));
            dataTable.Columns.Add("Tab", typeof(string));
            dataTable.Columns.Add("Module", typeof(int));

            dataTable.Rows.Add(1222,"micro","Abc","source",1);
            dataTable.Rows.Add(1321, "silicon", "Abc", "Types", 3);
            dataTable.Rows.Add(1444, "cd2", "AutoD", "Rev", 10);
            dataTable.Rows.Add(1321, "cd3", "AutoD", "source", 11);
            dataTable.Rows.Add(1541,"mtvscro", "AutoD", "Rev", 12);
            dataTable.Rows.Add(9811, "tvs2", "Mog", "Dal", 6);
            dataTable.Rows.Add(1901, "tvs3", "Mog", "Mondo", 6);
            dataTable.Rows.Add(2111, "toyo", "Mog", "Pingo", 7);

            return dataTable;
        }
 

Skydiver

Staff member
Joined
Apr 6, 2019
Messages
1,574
Location
Virginia Beach, VA
Programming Experience
10+
Considering that creating Zip files has been built into the .NET Framework for several years now, I don't see why you have not even tried to create a .ZIP file in that code above. I just see trying to create .xlsx file in that code.

 
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