Preview file on GridView LinkButton Click using C# in ASP.Net

What you are passing in CommandArgument?

string fileName = Server.MapPath(@"~/Uploads/" + e.CommandArgument.ToString()); Folder Name

Hi Soni,

Chek the below code.

C#

string filesPath = Server.MapPath(@"~/Uploads/" + e.CommandArgument.ToString());
// Get list of files from the path.
string[] files = Directory.GetFiles(filesPath);
if (files.Length > 0)
{
    foreach (string filePath in files)
    {
        Process process = new Process();
        process.StartInfo.UseShellExecute = true;
        ProcessStartInfo psStartInfo = new ProcessStartInfo();
        psStartInfo.FileName = filePath;
        Process ps = Process.Start(psStartInfo);
    }
}
else
{
    ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('File Not found');", true);
}

VB.Net

Dim filesPath As String = Server.MapPath("~/Uploads/" & e.CommandArgument.ToString())
' Get list of files from the path.
Dim files As String() = System.IO.Directory.GetFiles(filesPath)
If files.Length > 0 Then
    For Each filePath As String In files
Dim process As System.Diagnostics.Process = New System.Diagnostics.Process()
        process.StartInfo.UseShellExecute = True
Dim psStartInfo As System.Diagnostics.ProcessStartInfo = New System.Diagnostics.ProcessStartInfo()
        psStartInfo.FileName = filePath
Dim ps As System.Diagnostics.Process = System.Diagnostics.Process.Start(psStartInfo)
    Next
Else
    ScriptManager.RegisterStartupScript(Me, Me.GetType(), "script", "alert('File Not found');", True)
End If

Hi Dharmendr

thank for your reply..

still getting error on below line :

string[] files = Directory.GetFiles(filesPath);Could not find a part of the path

'C:\Users\Administrator\Desktop\NEW\WebApplication22\WebApplication22\Uploads\Application\pdf'.

Grid View :

When you click on view it should open/preveiw abc.pdf file in pdf format