How resume able file download in asp net with c sharp best way for large fil


large files in ASP.NET can be a challenging task, especially when it comes to resumable file downloads. In this article, we will explore the best way to resumable file downloads in ASP.NET C#.

Understanding Resumable File Downloads

Resumable file downloads allow to and resume the download process without from the beginning. This is particularly useful when dealing with large files, as it saves time and bandwidth.

Resumable File Downloads in ASP.NET

To implement resumable file downloads in ASP.NET, we can utilize the Range header in HTTP requests. The Range header allows us to specify the byte range we want to download from the file.


The code above demonstrates how to implement resumable file downloads in ASP.NET using C#. Let's break it down:

1. We by getting the file path, name, and size.

2. We then retrieve the range from the request header. If the range is not specified, we set the start range to 0 and the end range to the file size minus 1.

3. Next, we set the necessary type and for the response. This includes the content disposition, accept ranges, content length, and content range.

4. We open the file stream and set its position to the start range.

5. We define a buffer size and create a byte array to store the buffer.

6. We read the file stream and write the buffer to the response stream in chunks. This allows for resumable downloads.

7. Finally, we end the response.


By utilizing the Range header and implementing the necessary logic, we can achieve resumable file downloads in ASP.NET using C#. This approach allows users to pause and resume large file downloads, improving the overall user experience.

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