User need to upload 30,000 csv values, these values may contain 16 digit numbers or zipcodes.Now our asp.net project doesn't use AJAX tool kit controls or jquery or any other 3rd party controls or open source code. This is restriction as per companies privacy policy.So I have to come with a best way to accommodate file upload feature. This has to be versatile in regards to re-usability some thing like a custom controlThis file upload feature should not be saved on the server, instead I need to read data into stream buffer and send them to UI then once user verify these values he/she'll have to hit submit thus values will be saved to DB.what are the best ways to implement this,
- Can I make use of System.Net.Webclient? or
- Is there any other alternative ways by using Async HttpHandlers?
- Can I show file upload progress to UI ?