Verify if file exists or not in C#

Question

I am working on an application. That application should get the resume from the users, so that I need a code to verify whether a file exists or not.

I\'m using ASP.N

Answer 1

I have written this code in vb and its is working fine to check weather a file is exists or not for fileupload control. try it

FOR VB CODE ============

    If FileUpload1.HasFile = True Then
        Dim FileExtension As String = System.IO.Path.GetExtension(FileUpload1.FileName)

        If FileExtension.ToLower <> ".jpg" Then
            lblMessage.ForeColor = System.Drawing.Color.Red
            lblMessage.Text = "Please select .jpg image file to upload"
        Else
            Dim FileSize As Integer = FileUpload1.PostedFile.ContentLength

            If FileSize > 1048576 Then
                lblMessage.ForeColor = System.Drawing.Color.Red
                lblMessage.Text = "File size (1MB) exceeded"
            Else
                Dim FileName As String = System.IO.Path.GetFileName(FileUpload1.FileName)

                Dim ServerFileName As String = Server.MapPath("~/Images/Folder1/" + FileName)

                If System.IO.File.Exists(ServerFileName) = False Then
                    FileUpload1.SaveAs(Server.MapPath("~/Images/Folder1/") + FileUpload1.FileName)
                    lblMessage.ForeColor = System.Drawing.Color.Green
                    lblMessage.Text = "File : " + FileUpload1.FileName + " uploaded successfully"
                Else
                    lblMessage.ForeColor = System.Drawing.Color.Red
                    lblMessage.Text = "File : " + FileName.ToString() + " already exsist"
                End If
            End If
        End If
    Else
        lblMessage.ForeColor = System.Drawing.Color.Red
        lblMessage.Text = "Please select a file to upload"
    End If

FOR C# CODE ======================

if (FileUpload1.HasFile == true) {
    string FileExtension = System.IO.Path.GetExtension(FileUpload1.FileName);

    if (FileExtension.ToLower != ".jpg") {
        lblMessage.ForeColor = System.Drawing.Color.Red;
        lblMessage.Text = "Please select .jpg image file to upload";
    } else {
        int FileSize = FileUpload1.PostedFile.ContentLength;

        if (FileSize > 1048576) {
            lblMessage.ForeColor = System.Drawing.Color.Red;
            lblMessage.Text = "File size (1MB) exceeded";
        } else {
            string FileName = System.IO.Path.GetFileName(FileUpload1.FileName);

            string ServerFileName = Server.MapPath("~/Images/Folder1/" + FileName);

            if (System.IO.File.Exists(ServerFileName) == false) {
                FileUpload1.SaveAs(Server.MapPath("~/Images/Folder1/") + FileUpload1.FileName);
                lblMessage.ForeColor = System.Drawing.Color.Green;
                lblMessage.Text = "File : " + FileUpload1.FileName + " uploaded successfully";
            } else {
                lblMessage.ForeColor = System.Drawing.Color.Red;
                lblMessage.Text = "File : " + FileName.ToString() + " already exsist";
            }
        }
    }
} else {
    lblMessage.ForeColor = System.Drawing.Color.Red;
    lblMessage.Text = "Please select a file to upload";
}