protected void btnLoad_Click(object sender, EventArgs e)
{
Session["ColumnNames"] = msSqlHelper.GetTableColumns(txtConnectionString.Text, drpTables.SelectedItem.Text);
string excelName = Session["fileName"].ToString();
DataSet ds = excelHelper.GetSheetData(excelName, drpSheets.SelectedItem.Text);
lstLeadsData.DataSource = ds.Tables["ExcelFileData"];
lstLeadsData.DataBind();
}
