Delete file from server in asp.net

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In this case, you combine Server. You can then call the uploaded file's SaveAs method to actually save the file. In the previous example, you let users upload one file. But you can use the FileUpload helper to upload more than one file at a time.

This is handy for scenarios like uploading photos, where uploading one file at a time is tedious. This example shows how to let users upload two at a time, although you can use the same technique to upload more than that. In this example, the FileUpload helper in the body of the page is configured to let users upload two files by default.

Because allowMoreFilesToBeAdded is set to true , the helper renders a link that lets user add more upload boxes:. To process the files that the user uploads, the code uses the same basic technique that you used in the previous example — get a file from Request.

Files and then save it. Including the various things you need to do to get the right file name and path. The innovation this time is that the user might be uploading multiple files and you don't know many. To find out, you can get Request. With this number in hand, you can loop through Request. Files , fetch each file in turn, and save it. When you want to loop a known number of times through a collection, you can use a for loop, like this:.

The variable i is just a temporary counter that will go from zero to whatever upper limit you set. In this case, the upper limit is the number of files. But because the counter starts at zero, as is typical for counting scenarios in ASP.

NET, the upper limit is actually one less than the file count. If three files are uploaded, the count is zero to 2. The uploadedCount variable totals all the files that are successfully uploaded and saved. This code accounts for the possibility that an expected file may not be able to be uploaded. Working with Images in an ASP. Exporting to a CSV File. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode.

Working with Files in an ASP. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note If you want to upload images and manipulate them for example, flip or resize them , see Working with Images in an ASP.

Note Important In a production website, you typically restrict who's allowed to make changes to the data.