How can I avoid Array while adding columns for Excelsheet?

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Hii,
I am uploading file as .csv in my project and with the help of stream reader i am taking excel columns to my sql table ..

C#

string[] rec = line.Split(',');
                                if (rec.Length > 0)
                                {
                                    DataRow dr = myExcelTable.NewRow();
                                    if (rec[0] != null)
                                    {
                                        dr["EmployeeId"] = rec[0];
                                    }
                                    else
                                    {
                                        dr["EmployeeId"] = "";
                                    }

                                    if (rec[1] != null)
                                    {
                                        dr["Date"] = rec[1];
                                    }
                                    else
                                    {
                                        dr["Date"] = "";
                                    }

this is what i am doing .. bt this will be ok if my excel has selected column ... what if my excel has many column .. can you suggest me alternative for array here which i used for Datarow and String[] rec here

Posted 1-Aug-13 3:26am

Torakami

Updated 1-Aug-13 3:29am

v2

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Torakami 1-Aug-13 9:28am

suggest me anything which both will gets added by using looping condition ..

Mukesh Ghosh 1-Aug-13 9:36am

do you want to read excel or write excel?

Torakami 1-Aug-13 9:36am

i wanted to read excel.. i am uploading

2 solutions

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PIEBALDconsult · Answer 1 · 2013-08-01T03:41:00

Solution 1

Don't use Split.
You can search here for CSV readers or try Rive[^].

Are you trying to match the CSV to an existing Excel sheet? Or simply import the CSV?
If the former, I recommend importing the CSV and then copying the data to the sheet.

Posted 1-Aug-13 3:41am

PIEBALDconsult

Mukesh Ghosh · Answer 2 · 2013-08-01T03:48:00

TRy this, it will return a data table , from data table you can get all column as required

C#

public DataTable SelectExcelSheet(string strSheetName, string strSheetRange)
        {
            try
            {
                //Open and query
                if (oleConn == null) Open();

                if (oleConn.State != ConnectionState.Open)
                    return null;

                DataTable dataTable = new DataTable(strSheetName);

                //Fill table
                string SelectQuery = string.Format("SELECT * FROM [{0}${1}]", strSheetName, strSheetRange);
                using (OleDbDataAdapter oleAdapter = new OleDbDataAdapter(SelectQuery, oleConn))
                {
                    oleAdapter.FillSchema(dataTable, SchemaType.Source);
                    oleAdapter.Fill(dataTable);
                }
                dataTable.Dispose();
                return dataTable;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (oleConn != null) Close();
            }
        }