Get the Last Modified Date of an uploaded file in ASP.Net using C# and VB.Net

Hi,

Please try below code

C#

string path = Path.GetFullPath(FileUpload1.PostedFile.FileName);
FileInfo file = new FileInfo(path);
DateTime lastModifiedDate = file.LastWriteTime;

VB

Dim path As String = Path.GetFullPath(FileUpload1.PostedFile.FileName)
Dim file As New FileInfo(path)
Dim lastModifiedDate As DateTime = file.LastWriteTime

I hope this will help you out.