Related on Custom Timer Job in sharepoint 2010 - sharepoint-2010

Question

How to create a custom job to export an Excel file in a list which has only 2 columns(Title,Description) in a sharepoint 2010?i want the coding part of this question?
Reading Data from Excel and writing into a sharepoint list,this has to be done through custom job coding
Thanks in Advance...
Naresh

Answer 1

Use OpenXMLSDK - a free download that needs to be installed on the server.
[...]
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
public class OffBookAssetLibraryEventReceiver : SPItemEventReceiver
{
public override void ItemUpdated(SPItemEventProperties properties)
{
// This if statement is to work around the sharepoint issue of this event firing twice.
if (properties.AfterProperties["vti_sourcecontrolcheckedoutby"] == null && properties.BeforeProperties["vti_sourcecontrolcheckedoutby"] != null)
{
byte[] workSheetByteArray = properties.ListItem.File.OpenBinary();
Stream stream = new MemoryStream(workSheetByteArray);
Package spreadsheetPackage = Package.Open(stream, FileMode.Open, FileAccess.ReadWrite);
SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(spreadsheetPackage);
SharedStringTablePart shareStringTablePart = spreadsheetDocument.WorkbookPart.SharedStringTablePart;
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.Sheets;
try
{
foreach (Sheet sheet in sheets)
{
var worksheetPart = (WorksheetPart)spreadsheetDocument.WorkbookPart.GetPartById(sheet.Id.Value);
IEnumerable<Row> rows = worksheetPart.Worksheet.GetFirstChild<SheetData>().Elements<Row>();
if (rows.Count() > 0)
{
int rowNumber = 0;
foreach (Row row in rows)
{
IEnumerable<Cell> cells = row.Elements<Cell>();
Cell title = null;
Cell description = null;
title = cells.ToArray()[0];
description = cells.ToArray()[1];
// This is the code used to extract cells from excel that are NOT inline (Inline cells are decimal and dates - although dates are stored as int)
int index = int.Parse(title.CellValue.Text);
string titleString = spreadsheetDocument.WorkbookPart.SharedStringTablePart.SharedStringTable.Elements<SharedStringItem>().ElementAt(index).InnerText;
index = int.Parse(description.CellValue.Text);
string descriptionString = spreadsheetDocument.WorkbookPart.SharedStringTablePart.SharedStringTable.Elements<SharedStringItem>().ElementAt(index).InnerText;
//Insert into your sharepoint list here!
}
}
}
}
}
}
}
I recommend putting this code into an event receiver on the document library (as seen above).

Answer 2

Have you looked at Excel REader for .NET
http://exceldatareader.codeplex.com/

Answer 3

Open the Excel File
Take a look at the Excel Services for SharePoint 2010. There is a walkthrough explaining the required steps to open an excel file.
SharePoint Custom Timer Job
To create a custom SharePoint timer job, you have to create a class that inherits from SPJobDefinition. A complete tutorial can be found in this blog post: Creating Custom Timer Job in SharePoint 2010.