ASP.Net FileUpload File Extension Validation | File upload in asp.net c#

#aspnet #fileupload #fileextensionvalidation
I explained how to create a validation filter for FileUpload control in order that it allows upload of only files with specific extension.
Example for Word documents it will filter *.doc and *.docx extension, for Excel files it will flter *.xls and *.xlsx extensions.
The validation done here is dual i.e. both server side and client side.

For better understanding Please watch the video till the end.
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Milton Coding.