Web Forms :: Upload Image Directly Or Make Thumbnail?
Jun 2, 2010
I have a requirement where i need to upload image files and display them as thumbnails on webpage. when clicked on thumbnial image the orginal uploaded image must display.iam in great confusion whether to make thumbnails dinamically on the fly when retrieving the orginal image or make thumbnails and save them to saperatefolder when uploading and save orginal image to another folder.
I am using asp.net ,C# what is the best way to achieve this?
Is it possible to directly upload a file after it is browsed and selected? I mean user should not click on "submit" button after file is selected. It should be uploaded automatically when selected. Is it possible to do that with fileupload control?
I can get the file(image) to display, but it displays at a size that is too large for my use. Basically, right now, I'm pointing the ImageField to the first field in the grid that contains the url of the image. I could require the user to create a smaller image of the file but that seems a little excessive. Is there any way to control the size of the column displaying the image? Here is the html, we are using LINQ to get the data that is displayed in the grid.
I have to create a web app (in C#) that's gonna let my users upload their files straight to Amazon S3 (not enough bandwidth on our own server). It looks like the only way i can do that is posting a simple HTML form to Amazon. The problem is that i have to do some work on my server too, like renaming the files, setting up flags on db when file is uploaded, and so on. I really can't see how to do that without uploading files first on our server, which is out of question, so other solution for this? Amazon S3 forum is pretty poor on this topic.
Before moving my files to another location, this assignment works fine (The files used to be located inside the application folder). But after moving all files to another drive in the same server, the images don't seem to render any longer. I can upload/download files fine but they just won't display as thumbnails on the page.
Have a look at this link.Web pageIf I want to have this kind of speed in my page load which consists of many thumbnail images. It that image is stored in database or in file system.What measures to take to achive this kind of speed like indexing, denormalization, caching and what else?
How can we upload video to Youtube? My requirement is that user uploads video to our site and after admin approval that video is uploaded to Youtube. i.e. The video is not directly uploaded to youtube when user uploads it to our website
I have a gridview which displays thumbnails in the first column and details in the other columns. The thumbnail URL is being retrieved using the following:
However, if the thumbnail cannot be located, a white box with a cross appears instead (as expected).
To handle this better, I would like to display a different image if the thumbnail cannot be located for any reason, for example an image saying "Image Cannot Be Displayed". But I am unsure of how to do this, of even where to do this. Essentially I need to assess the value that the datagrid is using for the particular URL when it is databound. But can I put VB.NET code in this?
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