如何将SPListitem从一个SPList复制到另一个SPList

Question

我需要将项目从一个SPList复制到另一个，

下面是不起作用的代码：

public void CopyList(SPList src)
{
    //Copy items from source List to Destination List
    foreach (SPListItem item in src.Items)
    {
        if(isUnique(item.UniqueId))
        {
            foreach (SPField field in src.Fields)
            {
               try
               {
                    if (!field.ReadOnlyField)
                        newDestItem = DestinationList.Items.Add();
                    newDestItem[field.Id] = item[field.Id];
                    newDestItem.Update();
               }
               catch (Exception ex)
               {
                   ex.ToString();
               }
            }
            //newDestItem["wrkspace"] = src.ParentWeb.Name;
            // newDestItem.Update();
        }
        DestinationList.Update();  
    }
    // DestinationList.Update();
}

Answer 1

SPListItem类型有一个CopyTo方法，它将执行您想要的操作。

http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.copyto.aspx

Answer 2

您忘记复制项目的附件。看看this article，下面重复了部分代码。

// ** Copy the fields
foreach(SPField field in sourceItem.Fields)
{
    if (newItem.Fields.ContainsField(field.InternalName) == true && 
        field.ReadOnlyField == false && field.InternalName != "Attachments")
    {
       newItem[field.InternalName] = sourceItem[field.InternalName];
    }
}

// ** Delete any existing attachments in the target item
for (int i = newItem.Attachments.Count; i > 0; i-- )
{
    newItem.Attachments.Delete(newItem.Attachments[i-1]);
}

// ** Copy any attachments
foreach (string fileName in sourceItem.Attachments)
{
    SPFile file = sourceItem.ParentList.ParentWeb.GetFile(sourceItem.Attachments.UrlPrefix + 
                                                          fileName);
    byte[] imageData = file.OpenBinary();
    newItem.Attachments.Add(fileName, imageData);
}

// ** Remember where the original was copied from so we can update it in the future
newItem["_M_CopySource"] = sourceItem["FileRef"];

newItem.Update();

Answer 3

看看这篇文章，link。这是我找到的最好的方法。