SPAttachmentCollection.Add method

Adds the attachment that is represented by the specified file name and byte array to the list item.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

Syntax

'Declaration
Public Sub Add ( _
    leafName As String, _
    data As Byte() _
)
'Usage
Dim instance As SPAttachmentCollection
Dim leafName As String
Dim data As Byte()

instance.Add(leafName, data)

public void Add(
    string leafName,
    byte[] data
)

Parameters

• leafName
  Type: System.String

  The name of the file to add.

• data
  Type: []

  A byte array that contains the attachment.

Exceptions

Remarks

Adding a new attachment with this method requires that you update the list item using the Update method.

Examples

The following code example shows how to add a file attachment to an item in the Announcements list.

Since the Add method requires that you pass the file in binary format as a parameter, the example uses the OpenBinary method of the SPFile class to open each file within the folder in binary format.

Dim site As SPSite = SPContext.Current.Site
Dim srcSite As SPWeb = site.AllWebs("Site_Name")
Dim file As SPFile = srcSite.Folders("Folder_Name").Files("File_Name")
Dim list As SPList = srcSite.Lists("Announcements")

Dim listItem As SPListItem = list.Items(5)
Dim attachments As SPAttachmentCollection = listItem.Attachments

Dim fileName As String = file.Name
Dim binFile As Byte() = file.OpenBinary()

attachments.Add(fileName, binFile)

listItem.Update()

SPSite oSiteCollection = SPContext.Current.Site;
using(SPWeb oWebsite = oSiteCollection.AllWebs["Site_Name"])
{
    SPFile oFile = 
        oWebsite.Folders["Folder_Name"].Files["File_Name"];

    SPList oList = oWebsite.Lists["Announcements"];
    SPListItem oListItem = oList.Items[5];

    SPAttachmentCollection collAttachments = oListItem.Attachments;

    string strFileName = oFile.Name;

    byte[] binFile = oFile.OpenBinary();
    collAttachments.Add(strFileName, binFile);
    oListItem.Update();
}

See also

Reference

SPAttachmentCollection class

SPAttachmentCollection members

Microsoft.SharePoint namespace