Here Mudassar Ahmed Khan has explained with an example, how to upload and download PDF file from SQL Server Database in ASP.Net using C# and VB.Net.

The PDF file will be uploaded using FileUpload control and will be inserted into SQL Server Database Table.

A GridView control will display the PDF file present in the SQL Server Database Table along with an option to download the selected PDF file from Database in ASP.Net.

Here Mudassar Ahmed Khan has explained with an example, how to upload and download files from Folder (Directory) in ASP.Net using C# and VB.Net.

The uploaded Files will be read from Folder (Directory) on Server’s Disk and will be displayed in GridView control.

The uploaded Files can be downloaded and deleted from Folder (Directory) using the Download and Delete buttons in the ASP.Net GridView.

Here Mudassar Ahmed Khan has explained with an example, how to send runtime generated file as Attachment in email in ASP.Net using C# and VB.Net.

This article will illustrate how to attach a runtime generated PDF file as attachment and send email in ASP.Net using C# and VB.Net.

Here Mudassar Ahmed Khan has explained how to resolve the error Failure sending email in ASP.Net.

Generally the Failure sending email error comes when debugged leads to the following error:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required in ASP.Net Application.
Thus this article will cover the common solutions which can resolve the issue.