C# DevExpress GridControl导出表格

/// <summary>
///     导出表格
/// </summary>
/// <param name="gridControl1"></param>
public static void DevExpressGridControlExport(GridControl gridControl1)
{
using (var saveDialog = new SaveFileDialog())
{
saveDialog.Filter = Resources.CommonFunction_DevExpressGridControlExport_Excel_97_2007文件___xls_Excel_2010___xlsx_Excel__2003___xls____xls_Excel__2010____xlsx____xlsx__RichText_File___rtf____rtf__Pdf_File___pdf____pdf__Html_File___html____html;
if (saveDialog.ShowDialog() == DialogResult.Cancel) return;
var exportFilePath = saveDialog.FileName;
var fileExtenstion = new FileInfo(exportFilePath).Extension;
switch (fileExtenstion)
{
case ".xls":
gridControl1.ExportToXls(exportFilePath);
break;
case ".xlsx":
gridControl1.ExportToXlsx(exportFilePath);
break;
case ".rtf":
gridControl1.ExportToRtf(exportFilePath);
break;
case ".pdf":
gridControl1.ExportToPdf(exportFilePath);
break;
case ".html":
gridControl1.ExportToHtml(exportFilePath);
break;
case ".mht":
gridControl1.ExportToMht(exportFilePath);
break;
}

if (File.Exists(exportFilePath))
{
try
{
if (DialogResult.Yes == MessageBox.Show(Resources.CommonFunction_DevExpressGridControlExport_, Resources.CommonFunction_DevExpressGridControlExport_提示, MessageBoxButtons.YesNo))
{
Process.Start(exportFilePath);
}
}
catch
{
var msg = "The file could not be opened." + Environment.NewLine + Environment.NewLine + "Path: " + exportFilePath;
MessageBox.Show(msg, Resources.CommonFunction_DevExpressGridControlExport_Error_, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
var msg = "The file could not be saved." + Environment.NewLine + Environment.NewLine + "Path: " + exportFilePath;
MessageBox.Show(msg, Resources.CommonFunction_DevExpressGridControlExport_Error_, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}