how to determine file size

How can we determine the file length of an HTTP object? There are roughly four situations:* Any message that does not contain a message body (for example, a response message of 1xxx, 204, or 304, and a response message of any header (Head, header)

When you install a 64-bit version of Microsoft Windows Server 2003 or Microsoft Windows XP, the operating system creates a page file that is half the number of RAM files installed on your computer. However, as the amount of RAM on the computer

When Asp.net uploads a file and uses the file control of the HTML control, the following error occurs: [system. Io. filenotfoundexception: the file cannot be found]. This is why the full path name cannot be obtained during file upload. When a file

Recent work needs to do a upload image function, since the upload is a picture, then should be uploaded before the file to verify that you want to upload is not a picture file. So verify the format of the selected file before uploading. Upload the

How to read the size of a picture:First, the native input file control has a Files property, which is an array. The elements in the array have the following properties: Lastmodifieddate,name,size,type,webkitrelativepath,　　In this case, we can detect

Today in the small feature of uploading images, using a Kissy upload component. Curious how it detects the size and size of a picture before it is uploaded? Let's write a little example. How to read the size of a pictureFirst, the native input file

Function Checkfiles (obj) { var array = new Array (' GIF ', ' jpeg ', ' png ', ' jpg '),////file type that can be uploaded if (Obj.value = = " { Alert ("Let's Select a picture to upload!"); return false; } Else { var filecontenttype =

  Since the upload is a picture, then you should upload the file before the verification, to see if the upload is not a picture file Recent work needs to do a upload image function, since the upload is a picture, then should be uploaded before the

In recent work, you need to upload an image. Since the image is uploaded, you should verify the file before uploading to see if it is an image file to be uploaded. Therefore, you must verify the format of the selected file before uploading. When

In the previous article, we mainly introduced the implementation of the file upload function under normal circumstances under the SPIRNG MVC environment. In the actual development, will also involve the upload file size and type restrictions, the