How to add folder in picture library programmatically

Question

 
Hi All,
I tried to add folder using below code but getting error of "Missing FileLeaf"
try
                if (properties.List.Title.ToString() == Utility.ListName.Events.ToString())
                    using (SPSite objSite = properties.Site)
                        using (SPWeb objWeb = properties.Web)
                            SPListItem lstEvent = properties.ListItem;
                            string folderName = Convert.ToString(lstEvent["Title"]) + "_" + DateTime.Now.ToShortDateString();
                            if (!string.IsNullOrEmpty(folderName))
                                SPList lstEventPictures = objWeb.Lists.TryGetList(Utility.LibraryName.EventPictures.ToString());
                                if (lstEventPictures != null)
                                    objWeb.AllowUnsafeUpdates = true;
                                    //SPListItemCollection folders = lstEventPictures.Folders;
                                    //folders.Add(lstEventPictures.RootFolder.ServerRelativeUrl 
, SPFileSystemObjectType.Folder , folderName);
                                    ///* create a folder under the path specified
                                    SPListItem folderItem = lstEventPictures.Items.Add(lstEventPictures.RootFolder.ServerRelativeUrl,
SPFileSystemObjectType.Folder , folderName);
                                    ///* set the folder name and update */
                                    //folderItem["Title"] = folderName;
                                    folderItem.Update();
                                    lstEventPictures.Update();
                                    objWeb.AllowUnsafeUpdates = false;
            catch (Exception ex)
                Utility.SPTraceLogError(ex);
Help me to resolve. Thanks in advance.

Answer 1

Hi DK,
You can use below mentioned code to add folder in any of your library. You need to changes little bit code as per your requirement.
/// <summary>
/// Provide utilities methods related to folder management
/// </summary>
public static class SPFolderUtilities
    /// <summary>
    /// Ensures the specified folder exists.
    /// </summary>
    /// <param name="list">The list where to create the folder.</param>
    /// <param name="subFolderPath">The sub folder path.</param>
    /// <returns>
    /// The existing <see cref="SPFolder"/> or a newly created if it did not exists.
    /// </returns>
    public static SPFolder EnsureFolder(SPList list, string subFolderPath)
        Contract.Requires<ArgumentNullException>(list != null);
        Contract.Requires<ArgumentNullException>(!string.IsNullOrEmpty(subFolderPath));
        if (!IO.SPPathUtilities.IsFileOrFolderNameValid(subFolderPath, true))
            throw new ArgumentException("Invalid characters in the file or folder name", "subFolderPath");
        var folderPaths = subFolderPath.Split('/');
        var currentFolder = list.RootFolder;
        for (int i = 0; i < folderPaths.Length; i++)
            currentFolder = list.ParentWeb.GetFolder(currentFolder.Url); // hacky refresh
            var subFolder = currentFolder.SubFolders.Cast<SPFolder>().FirstOrDefault(f => string.Compare(f.Name, folderPaths[i], true) == 0);
            if (subFolder == null)
                var newFolderItem = list.Items.Add(currentFolder.ServerRelativeUrl, SPFileSystemObjectType.Folder, folderPaths[i]);
                newFolderItem.SystemUpdate();
                subFolder = newFolderItem.Folder;
            currentFolder = subFolder;
        return currentFolder;
And here is the specifc code that you can use for Picture library only
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yes the code sample provided by you is to create a image library and then to add a folder to it but i'm not sure with the string.empty being passed to list.items.add. i would still recommend to use the solution suggested by me. to check if library exists or
not what you have to do is 
SPSite _MySite = new SPSite("SERVERIP");  
                using (SPWeb currentweb = _MySite.OpenWeb())
SPList imageLib = currentweb.Lists["NewImages]
if( imageLib == null)
Guid listId = currentweb.Lists.Add("NewImages", "Picture Library", SPListTemplateType.PictureLibrary);
 imageLib t = currentweb.Lists[listId];    
SPDocumentLibrary
 _MyDocLibrary =
(SPDocumentLibrary)
imageLib ;
                 SPFolderCollection _MyFolders = _MyWeb.Folders;
                _MyFolders.Add("http://adfsaccount:2222/My%20Images/" + <<subfolderName>> + "/");
                _MyDocLibrary.Update();
I hope this is helpful to you, mark it as Helpful.
If this works, Please mark it as Answered.
Regards,
Dharmendra Singh (MCPD-EA | MCTS)
Blog : http://sharepoint-community.net/profile/DharmendraSingh