Export to excel losses leading zero in mvc4 - asp.net-mvc

Question

i am working on mvc4 project.I have having issue with export to excel code.I have employee id that is varchar field... and have leading zero ie : 0289707,2909878 etc..
So when i export data to excel it looses leading zero..
So how do i export data as it is ??
Controller code is as below :
public ActionResult ExportToExcel(string strStartDate, string strEndDate)
{
try
{
GridView gridView = new GridView();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "EmployeeReport " + Helper.GetBrazilTime(DateTime.UtcNow).ToString() + ".xls"));
Response.ContentType = "application/ms-excel";
StringWriter stringWriter = new StringWriter();
HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);
gridView.AllowPaging = false;
DateTime startDate = Convert.ToDateTime(strStartDate);
DateTime endDate = Convert.ToDateTime(strEndDate);
if (Helper.CurrentCulture == "pt-BR")
{
startDate = new DateTime(startDate.Year, startDate.Month, startDate.Day, 0, 0, 0, DateTimeKind.Utc);
endDate = new DateTime(endDate.Year, startDate.Month, endDate.Day, 0, 0, 0, DateTimeKind.Utc);
}
gridView.DataSource = ReportExecutor.GetEmployeeReportExportData(startDate, endDate);
gridView.DataBind();
//This will change the header background color
gridView.HeaderRow.Style.Add("background-color", "#FFFFFF"); //
//This will apply style to gridview header cells
for (int index = 0; index < gridView.HeaderRow.Cells.Count; index++)
{
gridView.HeaderRow.Cells[index].Style.Add("background-color", "#778899"); //Light Slate Gray
gridView.HeaderRow.Cells[index].Style.Add("foreground-color", "#ffffff"); // White
}
gridView.HeaderRow.Cells[0].Text = #Resources.Resource.ShopName;
gridView.HeaderRow.Cells[1].Text = #Resources.Resource.MachineName;
gridView.HeaderRow.Cells[2].Text = #Resources.Resource.ProjectIDName;
gridView.HeaderRow.Cells[3].Text = #Resources.Resource.BaseActivity;
gridView.HeaderRow.Cells[4].Text = #Resources.Resource.EmployeeID;
gridView.HeaderRow.Cells[5].Text = #Resources.Resource.EmployeeName;
gridView.HeaderRow.Cells[6].Text = #Resources.Resource.RunTime;
gridView.HeaderRow.Cells[7].Text = #Resources.Resource.SetUp;
gridView.HeaderRow.Cells[8].Text = #Resources.Resource.TearDown;
gridView.HeaderRow.Cells[9].Text = #Resources.Resource.Work;
gridView.HeaderRow.Cells[10].Text = #Resources.Resource.Rework;
gridView.HeaderRow.Cells[11].Text = #Resources.Resource.LunchHours;
gridView.HeaderRow.Cells[12].Text = #Resources.Resource.MaintenanceHours;
gridView.HeaderRow.Cells[13].Text = #Resources.Resource.QualityProblemHours;
gridView.HeaderRow.Cells[14].Text = #Resources.Resource.LOMHours;
gridView.HeaderRow.Cells[15].Text = #Resources.Resource.UDCIdle;
gridView.HeaderRow.Cells[16].Text = #Resources.Resource.UDCOthers;
gridView.HeaderRow.Cells[17].Text = #Resources.Resource.ActualShiftHours;
gridView.HeaderRow.Cells[18].Text = #Resources.Resource.Overtime;
int index2 = 1;
//This will apply style to alternate rows
foreach (GridViewRow gridViewRow in gridView.Rows)
{
//gridViewRow.Attributes.Add("class", "textmode");
gridViewRow.BackColor = Color.White;
if (index2 <= gridView.Rows.Count)
{
if (index2 % 2 != 0)
{
for (int index3 = 0; index3 < gridViewRow.Cells.Count; index3++)
{
gridViewRow.Cells[index3].Style.Add("background-color", "#e6e6fa");// Lavender
//gridViewRow.Cells[index3].Style.Add("class", "textmode");// Apply text style to all rows
}
}
}
index2++;
}
gridView.RenderControl(htmlTextWriter);
Response.Write(stringWriter.ToString());
Response.End();
}
catch
{
}
return null;
}

Answer 1

For i As Integer = 0 To GridView1.Rows.Count - 1
//Apply text style to each Row.cell
//The attribute must be "text" not "textmode" and it must be applied to the cells
For j As Integer = 0 To GridView1.Rows(i).Cells.Count - 1
GridView1.Rows(i).Cells(j).Attributes.Add("class", "text");
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