/// <summary>
/// Replace any of the contained controls with literals
/// </summary>
/// <param name="control"></param>
public static void PrepareControlForExport(Control control)
{
for (int i = 0; i < control.Controls.Count; i++)
{
Control current = control.Controls[i];
if (current is LinkButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text));
}
else if (current is ImageButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText));
}
else if (current is HyperLink)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text));
}
else if (current is DropDownList)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text));
}
else if (current is CheckBox)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "Ðúng" : "Sai"));
}
if (current.HasControls())
{
GridViewToExcel.PrepareControlForExport(current);
}
}
}
/// <summary>
/// Export grid to excel with header text
/// </summary>
/// <param name="fileName">tên file</param>
/// <param name="gv">grid view</param>
/// <param name="headerText1">Đài truyền hình VN</param>
/// <param name="headerText2">tiêu đề</param>
/// <param name="headerText3">ghi chú</param>
public static void Export(string fileName, GridView gv, string headerText1, string headerText2, string headerText3)
{
StringBuilder sb = new StringBuilder();
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.AddHeader("Content-Disposition", "inline;filename=" + fileName);
#region write header
sb.AppendLine("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"");
sb.AppendLine("http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\" >");
sb.AppendLine("<head>");
sb.AppendLine("<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>");
sb.AppendLine("<style>");
sb.AppendLine("table thead tr th {background-color:White;font-weight:bold;font-size:14px;text-align:left;border:none}");
sb.AppendLine("table thead tr td {font-size:13px;text-align:center;border:1px}");
sb.AppendLine("table tbody tr th {background-color:White;font-size:14px;text-align:center;border:none}");
sb.AppendLine("table tbody tr td {font-size:13px;text-align:center;border:none}");
sb.AppendLine("table tr th {background-color: #98FB98;font-size:14px;}");
sb.AppendLine("table tr td {color:black;}");
sb.AppendLine("td, th {border:.2pt solid windowtext;}");
sb.AppendLine("</style>");
sb.AppendLine("</head><body>");
HttpContext.Current.Response.Write(sb.ToString());
#endregion
#region write header text
string headerSpan = "" + gv.HeaderRow.Cells.Count;
//if (Convert.ToInt32(headerSpan) > 0)
//{
if (!headerText1.Equals("") || !headerText2.Equals("") || !headerText3.Equals(""))
{
sb = new StringBuilder();
sb.AppendLine("<table>");
sb.AppendLine("<thead>");
//sb.AppendLine("<tr><td colspan='" + headerSpan + "'></td></tr>");
//sb.AppendLine("<tr><th colspan='" + headerSpan + "'></th></tr>");
sb.AppendLine("<tr><th colspan='" + headerSpan + "'></th></tr>");
if (!headerText1.Trim().Equals(""))
{
sb.AppendLine("<tr><th colspan='" + headerSpan + "'>" + headerText1 + "</th></tr>");
}
sb.AppendLine("</thead>");
sb.AppendLine("<tbody>");
if (!headerText2.Trim().Equals(""))
{
sb.AppendLine("<tr><th colspan='" + headerSpan + "'>" + headerText2 + "</th></tr>");
}
if (!headerText3.Trim().Equals(""))
{
sb.AppendLine("<tr><td colspan='" + headerSpan + "'>" + headerText3 + "</td></tr>");
}
sb.AppendLine("<tr><td colspan='" + headerSpan + "'></td></tr>");
sb.AppendLine("</tbody>");
sb.AppendLine("</table>");
HttpContext.Current.Response.Write(sb.ToString());
}
//}
#endregion
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
// Create a form to contain the grid
Table table = new Table();
// add the header row to the table
if (gv.HeaderRow != null)
{
GridViewToExcel.PrepareControlForExport(gv.HeaderRow);
table.Rows.Add(gv.HeaderRow);
}
// add each of the data rows to the table
foreach (GridViewRow row in gv.Rows)
{
GridViewToExcel.PrepareControlForExport(row);
table.Rows.Add(row);
}
// add the footer row to the table
if (gv.FooterRow != null)
{
GridViewToExcel.PrepareControlForExport(gv.FooterRow);
table.Rows.Add(gv.FooterRow);
}
// render the table into the htmlwriter
table.RenderControl(htw);
// render the htmlwriter into the response
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
}
}