Get File Name of all Files inside Folder (Directory) using C# and VB.Net in ASP.Net

Hi sureshMGR,

Use DirectoryInfo class and get all the files using GetFiles method.

Now you can get the FileName using the FOREACH loop.

Refer below sample.

HTML

<asp:Button Text="GetFileName" runat="server" OnClick="GetNames" />

Namespaces

C#

using System.IO;

VB.Net

Imports System.IO

Code

C#

protected void GetNames(object sender, EventArgs e)
{
    string fileMessage = "";
    DirectoryInfo dir = new DirectoryInfo(@"D:\Users\Ajeet\Images\New folder");
    FileInfo[] fileinfo = dir.GetFiles(@"*.jpg");
    foreach (FileInfo file in fileinfo)
    {
        fileMessage = fileMessage + "\\n" + file.Name;
    }
    ScriptManager.RegisterStartupScript(this, this.GetType(), "Message", "alert('" + fileMessage + "');", true);
}

VB.Net

Protected Sub GetNames(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
    Dim fileMessage As String = ""
    Dim dir As DirectoryInfo = New DirectoryInfo("D:\Users\Ajeet\Images\New folder")
    Dim fileinfo As FileInfo() = dir.GetFiles("*.jpg")
    For Each file As FileInfo In fileinfo
        fileMessage = fileMessage & "\n" & file.Name
    Next
    ScriptManager.RegisterStartupScript(Me, Me.GetType(), "Message", "alert('" & fileMessage & "');", True)
End Sub

Screenshot