Experiences in Asp.net Development

1. Pay special attention to the use of JS files and the aspx file character set.

Under normal circumstances, Asp.net may have character set problems when handling a JS file. Because JS usually adopts the ASCII code method, the Asp.net page is usually UTF-8 or Unicode, so the two sessions suddenly rushed, so pay special attention to it!

2.The memory occupied by Asp.net files is too large.

Use

Fileinfo = new fileinfo (filepath );
Response. Clear ();
Response. clearcontent ();
Response. clearheaders ();
Response. addheader ("content-disposition", "attachment; filename =" +
Filename );

.......

Directly open the file and send the file. This will occupy a lot of memory. The following two methods can be used to alleviate the problem:

The following code controls the buffer size? 1024 bytes should be too small
Byte [] buffer1 = new byte [0x400];
While (num3> 0)
{
Num3 = stream1.read (buffer1, 0, buffer1.length );
Response. outputstream. Write (buffer1, 0, num3 );

 

 

}

Try this.

Private void downfile (string filepath, string filename)
{
Fileinfo = new fileinfo (filepath );
Response. Clear ();
Response. clearcontent ();
Response. clearheaders ();
Response. addheader ("content-disposition", "attachment; filename =" +
Filename );
Response. addheader ("Content-Length", fileinfo. length. tostring ());
Response. addheader ("content-transfer-encoding", "binary ");
Response. contenttype = "application/octet-stream ";
Response. contentencoding = system. Text. encoding. getencoding ("gb2312 ");
Response. writefile (fileinfo. fullname );
Response. Flush ();
Response. End ();

From: http://blueleopard.bokee.com/4954120.html