How to transfer data to an Excel workbook by using Visual Basic .NET ?

Question

I want to retrieve some data from sql server to my application, and from there export some selected data to Excel!

Answer 1

// this does all the work to export to excel
public void ExportTableData(DataTable dtdata)
{
string attach = "attachment;filename=journal.xls";
Response.ClearContent();
Response.AddHeader("content-disposition", attach);
Response.ContentType = "application/ms-excel";
if (dtdata != null)
{
foreach (DataColumn dc in dtdata.Columns)
{
Response.Write(dc.ColumnName + "\t");
//sep = ";";
}
Response.Write(System.Environment.NewLine);
foreach (DataRow dr in dtdata.Rows)
{
for (int i = 0; i < dtdata.Columns.Count; i++)
{
Response.Write(dr[i].ToString() + "\t");
}
Response.Write("\n");
}
Response.End();
}
}