Here Mudassar Ahmed Khan has explained with an example, how to export (convert) GridView to PDF file using JavaScript and jQuery in ASP.Net.

The GridView’s HTML Table will be first converted into a HTML5 Canvas using html2canvas plugin and then the HTML5 Canvas will be exported to PDF file using the pdfmake plugin in jQuery.

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 provided solution to the problem where value of the TextBox placed in GridView is lost after PostBack in ASP.Net with C# and VB.Net.

When PostBack happens i.e. when Button is clicked or any other control that does PostBack inside GridView, the GridView is again populated with data and hence the modified values in TextBox are lost.