Avatar of ts84zs
ts84zs
 asked on

read excel spreadsheet using c# .net

i have an excel spreadsheet . There are 2 columns in that spreadsheet.
Column1 -Name of employee
Column2 - Contract Expiry Date
I want to write an app in c# which reads that spreadsheet, checks Column2 to see f the "Contract Expiry Date" is within 30 days and then it should send email to the admin.    
How can i write such app?

Thanks
C#.NET Programming

Avatar of undefined
Last Comment
ts84zs

8/22/2022 - Mon
SOLUTION
Éric Moreau

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
SOLUTION
Rose Babu

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
jitendra patil

please try the below code

  using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.IO;
using System.Xml;
using System.Data.OleDb;
 public static void Main(string[] args)
        {
            string fileLocation = System.IO.Path.GetFullPath(@"../../ExcelFiles/Employees.xlsx");
            string connectionString = "";
            string fileExtension = Path.GetExtension(fileLocation);
            if (fileExtension == ".xls")
            {
                connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
            }

            else if (fileExtension == ".xlsx")
            {
                connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
            }
            //Create OleDB Connection and OleDb Command
            OleDbConnection con = new OleDbConnection(connectionString);
            OleDbCommand cmd = new OleDbCommand();
            cmd.CommandType = System.Data.CommandType.Text;
            cmd.Connection = con;
            OleDbDataAdapter dAdapter = new OleDbDataAdapter(cmd);
            DataTable dtExcelRecords = new DataTable();
            con.Open();
            DataTable dtExcelSheetName = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
            string getExcelSheetName = dtExcelSheetName.Rows[0]["Table_Name"].ToString();
            cmd.CommandText = "SELECT * FROM [" + getExcelSheetName + "]";
            dAdapter.SelectCommand = cmd;
            dAdapter.Fill(dtExcelRecords);
            con.Close();

            DateTime startdate = DateTime.Now.Date;
            DateTime enddate = DateTime.Now.Date.AddDays(30);

            foreach (DataRow dr in dtExcelRecords.Rows)
            {
                DateTime DT = DateTime.Parse(dr["Contract expiry date"].ToString());

                if (DT >= startdate && DT <= enddate)
                {
                    Console.WriteLine("Employee Name =>" + dr["Employee name"].ToString() + "Contract Expiry Date =>" + DT.ToShortDateString()); 
 //instead of above line you can write the email sending code here.

                }
            }

            Console.ReadLine();
        }

Open in new window

hope this helps.
ts84zs

ASKER
thanks  a lot
i m looking into it
ts84zs

ASKER
can i use odbc instead of oledb also is oledb future OK?

how do i send email from c# thanks
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
Éric Moreau

ASKER CERTIFIED SOLUTION
Log in to continue reading
Log In
Sign up - Free for 7 days
Get an unlimited membership to EE for less than $4 a week.
Unlimited question asking, solutions, articles and more.
ts84zs

ASKER
thanks a lot.. that will work...

Also, I have to schedule a task to run that application on a server with operating system - windows server 2008...
MS Office or excel is not installed on that server... Which libraries should I copy to make it work...(In case of odbc or oledb)  
pl help thanks a lot