'System.IO.FileNotFoundException' when trying to save an outlook Attachment

Question

I have built a small web application to read appointments from outlook calendar and i used Microsoft.Office.Interop.Outlook. Now I want to to able to save the attachments which are inside the appointment.

Here is my code so far :

foreach (var item in AppointmentItems) {    
    for (int i = 1; i <= item.Attachments.Count; i++) {

        var Attachment = item.Attachments[i];

        string SavePath = Path.Combine(@"D:\SaveTest", Attachment.FileName);

        Attachment.SaveAsFile(SavePath);
    }
}

Problem :

Exception thrown: 'System.IO.FileNotFoundException at exactly
Attachment.SaveAsFile(SavePath);

I have already looked everywhere, this method should save the attachment to the path but its somehow trying to read a file.

@mmathis yeah i made sure of that first , and now checking if i have writing access — PassionateCoder, Jul 22 '19 at 11:28
No Office app (Outlook included) can be used from a service (such as IIS). — Dmitry Streblechenko, Jul 22 '19 at 16:25

Giulio Caccin · Answer 1 · 2019-07-22T12:04:43.843

3

Assuming that the attachment exist, FileNotFoundExecption is triggered by a not existing part of your path. You can check if the path exist first:

Directory.Exists(@"D:\SaveTest")

Then you can check if you have write rights on the directory:

Try
{
return System.IO.Directory.GetAccessControl(@"D:\SaveTest")
        .GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount))
        .Cast<System.Security.AccessControl.FileSystemAccessRule>()
        .Where(rule => (System.Security.AccessControl.FileSystemRights.Write & rule.FileSystemRights) == System.Security.AccessControl.FileSystemRights.Write)
        .Any(rule => rule.AccessControlType == System.Security.AccessControl.AccessControlType.Allow);
} catch(Exception)
{
  return false;
}

edited Jul 22 '19 at 12:04

answered Jul 22 '19 at 09:59

Giulio Caccin

2,962
6
36
57

i am pretty sure writing rights are there because i have tried WriteallText and some other writing and deleting methods to check if i have rights to read or write , the thing the attachment is being saved but then directly deleted as i reach the line Attachment.SaveAsFile(SavePath); Edit : typo – PassionateCoder Jul 22 '19 at 14:19
Can you take a look at this https://stackoverflow.com/questions/31072981/saving-device-independent-bitmap-attachment ? – Giulio Caccin Jul 22 '19 at 15:09

score 1 · Answer 2 · answered Jul 22 '19 at 10:24

1

3 things you could try to do:

Make sure that the directory exists
Check if Attachment.FileName have valid name and extension
Check your write access

answered Jul 22 '19 at 10:24

AdlerCode

11
2

score 0 · Answer 3 · answered Jul 22 '19 at 10:22

System.IO.FileNotFoundExecption means it can't find the file you are looking for or the path you are trying to save to in your case. remove @ and try "D:\foldername\" + attachment.filename. although removing @ should still work I think you need use plus operator. Would help you can post the whole block of code so we can understand what is going on from top to bottom.

'System.IO.FileNotFoundException' when trying to save an outlook Attachment

3 Answers3