Hi,
I am working on exporting data from a dataset to excel. When I used save
file dialog to save the file in a desired path I came across the error
"Exception from HRESULT: 0x800A03EC - COM EXCEPTION UNHANDLED"
Please find below the code I have used
using Microsoft.Office.Interop.Excel;
using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
namespace EXPORT_DATASET_EXCEL_II
{
static class ExportingCellByCellMethod
{
public static void ExportToExcel(DataSet dataSet, string outputPath)
// public static void ExportToExcel(DataSet dataSet)
{
// Create the Excel Application object
ApplicationClass excelApp = new ApplicationClass();
//excelApp.Interactive = false;
// Create a new Excel Workbook
Workbook excelWorkbook = excelApp.Workbooks.Add(Type.Missing);
int sheetIndex = 0;
// Copy each DataTable as a new Sheet
foreach (System.Data.DataTable dt in dataSet.Tables)
{
// Create a new Sheet
Worksheet excelSheet = (Worksheet)excelWorkbook.Sheets.Add(
excelWorkbook.Sheets.get_Item(++sheetIndex),
Type.Missing, 1, XlSheetType.xlWorksheet);
excelSheet.Name = dt.TableName;
// Copy the column names (cell-by-cell)
for (int col = 0; col < dt.Columns.Count; col++)
{
excelSheet.Cells[1, col + 1] =
dt.Columns[col].ColumnName;
}
// Copy the values (cell-by-cell)
for (int col = 0; col < dt.Columns.Count; col++)
{
for (int row = 0; row < dt.Rows.Count; row++)
{
excelSheet.Cells[row + 2, col + 1] =
dt.Rows[row].ItemArray[col];
((Range)excelSheet.Rows[1,
Type.Missing]).AutoFit();
}
((Range)excelSheet.Columns[1,
Type.Missing]).AutoFit();
((Range)excelSheet.Columns[2,
Type.Missing]).AutoFit();
((Range)excelSheet.Columns[3,
Type.Missing]).AutoFit();
}
}
// Save and Close the Workbook
excelWorkbook.SaveAs(outputPath,
XlFileFormat.xlWorkbookNormal, Type.Missing,
Type.Missing, Type.Missing, Type.Missing,
XlSaveAsAccessMode.xlExclusive,
Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing);
excelWorkbook.Close(true, Type.Missing, Type.Missing);
excelWorkbook = null;
// Release the Application object
excelApp.Quit();
excelApp = null;
// Collect the unreferenced objects
GC.Collect();
GC.WaitForPendingFinalizers();
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Configuration;
namespace EXPORT_DATASET_EXCEL_II
{
public partial class Form1 : Form
{
System.Data.OleDb.OleDbConnection conn;
OleDbDataAdapter DA;
string S;
DataSet source;
public Form1()
{
InitializeComponent();
conn = new System.Data.OleDb.OleDbConnection();
conn.ConnectionString =
ConfigurationManager.ConnectionStrings["MSAccess"].ToString();
}
private DataSet getDemoDataSet()
{
S = "Select Emp_ID as [ID], Emp_Name as NAME,Reason as REASON,
Submitted_Date as [SUBMITTED DATE] from LEAVEMASTER_TABLE";
source = new DataSet();
DA = new OleDbDataAdapter(S, conn);
DA.Fill(source);
source.Tables[0].TableName = "sample";
return source;
}
private void button2_Click(object sender, EventArgs e)
{
DataSet demoDataSet = this.getDemoDataSet();
string savepath;
saveFileDialog1 = new SaveFileDialog();
savepath = saveFileDialog1.FileName + ".xls";
saveFileDialog1.Filter = "xls files (*.xls)|*.xls";
if (saveFileDialog1.ShowDialog() ==
System.Windows.Forms.DialogResult.OK
&& saveFileDialog1.FileName.Length > 0)
{
ExportingCellByCellMethod.ExportToExcel(demoDataSet,
savepath);
}
MessageBox.Show("Data Exported
successfully");
}
}
}
Can anyone help me out in solving this? Replies are highly appreciated. TIA.
--
Regards,
Karthik
