Delete File from FTP server using C# and VB.Net in ASP.Net

I will get back to you soon.

Hi namojainashis...,

You need to use the FtpWebRequest class.

FtpWebRequest Class

Refer below code.

HTML

<asp:Button ID="btnDelete" runat="server" OnClick="OnDelete" />

Namespaces

C#

using System.Net;

VB.Net

Imports System.Net

Code

C#

protected void OnDelete(object sender, EventArgs e)
{
    string fileName = "fileName";
    string FtpUrl = "ftp://yourserver.com/";
    string ftpFolder = "foldername/";
    string FtpserverIP = FtpUrl + ftpFolder + fileName;
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(FtpserverIP);
    request.Method = WebRequestMethods.Ftp.DeleteFile;
    request.Credentials = new NetworkCredential("userid", "password");
    FtpWebResponse response = (FtpWebResponse)request.GetResponse();
    ClientScript.RegisterClientScriptBlock(this.GetType(), "", "alert('" + response.StatusDescription + "')", true);
    response.Close();
}

VB.Net

Protected Sub OnDelete(ByVal sender As Object, ByVal e As EventArgs)
    Dim fileName As String = "fileName"
    Dim FtpUrl As String = "ftp://yourserver.com/"
    Dim ftpFolder As String = "foldername/"
    Dim FtpserverIP As String = FtpUrl & ftpFolder & fileName
    Dim request As FtpWebRequest = CType(WebRequest.Create(FtpserverIP), FtpWebRequest)
    request.Method = WebRequestMethods.Ftp.DeleteFile
    request.Credentials = New NetworkCredential("userid", "password")
    Dim response As FtpWebResponse = CType(request.GetResponse(), FtpWebResponse)
    ClientScript.RegisterClientScriptBlock(Me.[GetType](), "", "alert('" & response.StatusDescription & "')", True)
    response.Close()
End Sub