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Èç¹ûÏëÒª´«¸ü´óµÄ£¬ÒªÔÚweb.config µÄsystem.web½ÚµãÀï¼ÓÉÏ
 <httpRuntime maxRequestLength="10240" executionTimeout="3"/>Õâ¾Í¿ÉÒÔ×î´óÔÊÐí´«10MBÁË
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1. ¼ì²éÎļþµÄÀ©Õ¹Ãû:
2.
3. //ÅжÏÊÇ·ñÓÐÉÏ´«Îļþ
4. if (FileUpload1.HasFile)
5. {
6. //½ØÈ¡ÒªÉÏ´«ÎļþµÄÀ©Õ¹Ãû
7. //string extension = FileUpload1.FileName
8. .Substring(FileUpload1.FileName.LastIndexOf(".")).ToLower();
9. string extension = System.IO.Path
10. .GetExtension(FileUpload1.FileName).ToLower();
11.
12. //ÉÏ´«ÎļþÊÇ·ñ´óÓÚ10MB
13. if (FileUpload1.PostedFile.ContentLength < 10485760)
14. {
15. //ÉèÖÃÖ§³ÖÉÏ´«µÄÎļþ¸ñʽ
16. string[] allowedextension =
17. { ".jpg", ".gif", ".jpeg", ".bmp", ".png" };
18.
19. for (int i = 0; i < allowedextension.Length; i++)
20. {
21. //ÅжÏÉÏ´«ÎļþÀ©Õ¹ÃûÊÇ·ñÕýÈ·
22. if (!(extension != allowedextension[i]))
23. {
24. try
25. {
26. //ÉÏ´«Îļþ
27. FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Files/")+ FileUpload1.FileName);
28. lblMessage.Text = "ÎļþÉÏ´«³É¹¦!";
29. break;
30. }
31. catch (Exception ex)
32. {
33. lblMessage.Text = "³öÏÖ´íÎó,ÎÞ·¨ÉÏ´«!";
34. }
35. }
36. else
37. {
38. lblMessage.Text = "²»Ö§³Ö" + extension +