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Check uploaded file type?

alainc

Can I check uploaded file type? This is my code: if (file.ContentType=="application/vnd.ms-excel") But if I rename a txt file to .xls it not run :( Thankss

2 Replies

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alainc21y ago
yes is a asp.net application. ContentType show the end of file name, .txt .xls .doc. But it can be false. By example a .doc file renamed to .xls. Do you understand me? Thanks PD: sorry by my english, i'm spanish
mibuyt21y ago
Hi, I am confuse with 2 things. 1. Uploaded file types? You mean you have upload a file on the web? If yes, why not use this instead? FileWebResponse.ContentType Property 2. Rename a txt file to .xls? Can you elaborate more? I hope i can help you somehow. Cheers.