On Thu, Nov 20, 2008 at 8:37 PM, Chamnap <[EMAIL PROTECTED]> wrote: > > I have the same problem as Maha. I still not sure the usefulness of > these two methods. > For example, if i have a blob object (let's say I get it from openFiles > ()), then I use captureBlob() to capture the content of that blobs > object. Moreover, I can read it back to a blob object. What is the > usefulness of that, because it cannot be stored in a database? My > requirement is after user select image files to upload, I want to > display those file back to the user. How can I achieve this?
These methods provide two distinct things. 1) Persistent storage of a Blob on the local machine. True, its not in an SQL database, but it is there on disk available for retrieval nonetheless. 2) The ability to map the file to a url such that when the browser navigates to that url or refers to that url as the src of some content displaying surface area (say and <img> tag), the local resource will be retrieved and loaded into that surface area. If your interested in saving the contents of a file chosen with the FilePicker while offline, and later retrieving it and using HttpRequest to send it to a server.... you can do that. If your interested in showing an image file chosen with the FilePicker in an <img> tag... you can do that too. > Thanks > Chamnap >
