Export GridView to multiple Excel sheet

Question

I have two Gridview in my Web application.I need ,while clicking the (ExcelExpot) button the values to be Export in Excel Accordingly Sheet1 and Sheet2.

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Answer 1

I agree with @Andrew Burgess and have implemented his code into one of my projects. Just for the record theres a few small errors in the code which will cause some COM Exceptions. The corrected code is below (the issue was that Excel numbers sheets, rows, columns from 1 to n not from zero).

using Excel = Microsoft.Office.Interop.Excel;
using System.Reflection;
using System.IO;

        //Print using Ofice InterOp
        Excel.Application excel = new Excel.Application();

        var workbook = (Excel._Workbook)(excel.Workbooks.Add(Missing.Value));

        for (var i = 0; i < dataset.Tables.Count; i++)
        {

                if (workbook.Sheets.Count <= i)
                {
                    workbook.Sheets.Add(Type.Missing, Type.Missing, Type.Missing,
                                        Type.Missing);
                }

                //NOTE: Excel numbering goes from 1 to n
                var currentSheet = (Excel._Worksheet)workbook.Sheets[i + 1]; 

                for (var y = 0; y < dataset.Tables[i].Rows.Count; y++)
                {
                    for (var x = 0; x < dataset.Tables[i].Rows[y].ItemArray.Count(); x++)
                    {
                        currentSheet.Cells[y+1, x+1] = dataset.Tables[i].Rows[y].ItemArray[x];
                    }
                }
        }

        string outfile = @"C:\APP_OUTPUT\EXCEL_TEST.xlsx";

        workbook.SaveAs( outfile, Type.Missing, Type.Missing, Type.Missing,
                        Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange,
                        Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                        Type.Missing);

        workbook.Close();
        excel.Quit();