在Sharepoint中批量删除大量条目

在Sharepoint开发中可能需要一次删除成百上千条记录，这时候如果轮询SPList.Items并直接调用该对象的删除方法来删除的话性能极差，会叫你崩溃。

下面介绍一个快速删除大量数据的方法:

using (SPWeb myweb = mysite.AllWebs[“XXXX”])
{
SPListItemCollection itemsCollection=CurrentList.Items;

StringBuilder sbDelete = new StringBuilder(); 
sbDelete.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><Batch>"); 
foreach (SPListItem item in itemsCollection) 
{ 
    sbDelete.Append("<Method>"); 
    sbDelete.Append("<SetList Scope=\"Request\">" + CurrentList.ID + "</SetList>"); 
    sbDelete.Append("<SetVar Name=\"ID\">" + Convert.ToString(item.ID) + "</SetVar>"); 
    sbDelete.Append("<SetVar Name=\"Cmd\">Delete</SetVar>"); 
    sbDelete.Append("</Method>"); 
} 
sbDelete.Append("</Batch>");

try 
{ 
    myweb.ProcessBatchData(sbDelete.ToString()); 
} 
catch (Exception ex) 
{ 
Console.WriteLine("Delete failed: " + ex.Message); 
throw; 
}
}