how to Export dataset to Excel

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sir,

I have following code.in button click event.

            dt = new DataTable();
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Adress", typeof(string));
            for (int i = 0; i < 10; i++)
            {
                DataRow dr = dt.NewRow();
                dr[0] = "hi";
                dr[1] = "Chennai";
                dt.Rows.Add(dr);
            }
            DataSet ds = new DataSet();
            ds.Tables.Add(dt);



using (var wrt = new StreamWriter(openFile.FileName))
{
    for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
    {
        wrt.Write(ds.Tables[0].Columns[i].ToString().Trim() + "\t");
    }
    wrt.WriteLine();
    for (int j = 0; j < ds.Tables[0].Rows.Count; j++)
    {
        if (ds.Tables[0].Rows[j][0].ToString() != null)
        {
            wrt.Write(ds.Tables[0].Rows[j][0].ToString().Trim());
            for (int i = 1; i < ds.Tables[0].Columns.Count; i++)
            {
                wrt.Write("\t" + ds.Tables[0].Rows[j][i].ToString().ToString().Trim());
            }
            wrt.WriteLine();
        }
    }

When iam click button iam getting directly Opening Excel file.But i Want to get

open save Cancel options. For this what can I do

Is there any solution Please help me.

Thanks & Regards

Posted 25-Jul-11 21:59pm

kranthi.oru

Updated 25-Jul-11 22:01pm

walterhevedeich

v2

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3 solutions

Solution 2

It might help you,

Saving Files Using the SaveFileDialog Component[^]

:)

Posted 25-Jul-11 22:48pm

Mohammad A Rahman

Solution 3

Hi Kranthi,

Check this link

Export Data to Excel Much Faster[^]

Posted 25-Jul-11 23:54pm

Suresh Suthar

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Raju Prajapati · Accepted Answer · 2011-07-25T22:48:00

Try this

C#

SaveFileDialog sfileD = new SaveFileDialog();
sfileD.Filter = "xlsx files(*.xlsx)|*.xlsx|xls files(*.xls)|*.xls|All files(*.*)|*.*";
sfileD.FilterIndex = 2;
sfileD.RestoreDirectory = true;
if (sfileD.ShowDialog() == DialogResult.OK)
{
 string filename = sfileD.FileNames[0];
 if (exportToExcel(ds.Tables[0], filename))
  MessageBox.Show("Excel Sheet generated successfully.");
}

Method exportTOExcel

public static bool exportToExcel(DataTable source, string fileName)
        {
            Workbook book = new Workbook();
            Worksheet sheet = book.Worksheets.Add("Sheet1");
            WorksheetRow row = sheet.Table.Rows.Add();
            WorksheetStyle excelHeaderStyle = book.Styles.Add("HeaderRowStyle");
            excelHeaderStyle.Font.Bold = true;
            excelHeaderStyle.Font.FontName = "Verdana";
            excelHeaderStyle.Font.Size = 10;
            excelHeaderStyle.Font.Color = "#000000";
            try
            {
                for (int i = 0; i < source.Columns.Count; i++)
                {
                    row.Cells.Add(source.Columns[i].ColumnName, DataType.String, "HeaderRowStyle");
                }
                int no_colums = source.Columns.Count;
                for (int i = 0; i < source.Rows.Count; i++)
                {
                    row = sheet.Table.Rows.Add();
                    for (int j = 0; j < no_colums; j++)
                    {
                        row.Cells.Add(source.Rows[i].ItemArray[j].ToString());
                    }
                }
                book.Save(fileName);
                return true;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
                return false;
            }
        }