对Document library中修改文档的Author之实现修改在list(三)

背景：
       接上篇。

分析：
       1，传入三个参数： listId, 修改全部/修改选中，选中的itemId。
       2，修改之前先checkout， 然后记录修改的信息。

实现：

1, 用javascript弹出一个modalDialog窗口:

Code
function GotoEditAuthor(Mode,ListId)
{
    var DocumentIds = GetSelectedItems("DocumentID", ",");
    var handle = window.showModalDialog('/_layouts/EditAuthorFolder/EditAuthor.aspx?Mode=' + Mode + '&listItems=' + DocumentIds + '&listID=' + ListId, window,'status:off;center=yes;edge:raised;dialogHeight:400px;dialogWidth:450px;help:0;resizable:0;scrollbar=0');
    if (handle != null && handle != '' && typeof handle != 'undefined') 
    {
        window.location.href=window.location.href;
    }    
}

2,  修改的代码：

Code
        using (mySite = SPContext.Current.Site)
        {
            using (myWeb = mySite.OpenWeb(strWebName))
            {
                // 是否存在用户
                try
                {
                    DocAuthor = myWeb.AllUsers[TextBoxAuthor.Text];
                }
                catch
                {
                    DocAuthor = null;
                }
                if  (DocAuthor != null)
                {
                    SPDocumentLibrary myDocLibrary = myWeb.Lists[myDocGuid] as SPDocumentLibrary;
                    SPListItemCollection myDocItems;
                    myWeb.AllowUnsafeUpdates = true;
                    // Mode == 0 is update selected document author;
                    // Mode == 1 is update all document author;
                    if (Mode == 0)
                    {
                        string[] arrDocID = Regex.Split(strDocItems, ",");
                        foreach (string myDocID in arrDocID)
                        {
                            int DocID;
                            try
                            {
                                DocID = int.Parse(myDocID);
                            }
                            catch
                            {
                                DocID = 0;
                            }
                            if (DocID != 0)
                            {
                                SPListItem myItem = myDocLibrary.Items.GetItemById(DocID);
                                SPFile myFile = myItem.File;
                                myFile.CheckOut();
                                myItem["Owner"] = DocAuthor;
                                myItem.Update();
                                myFile.CheckIn(System.DateTime.Today.ToShortDateString() + ": Comment: Update document author ");                                  
                            }
                          
                        }
                    }
                    else if (Mode == 1)
                    {
                        myDocItems = myDocLibrary.Items;
                        foreach (SPListItem myItem in myDocItems)
                        {
                            SPFile myFile = myItem.File;
                            myFile.CheckOut();
                            myItem["Owner"] = DocAuthor;
                            myItem.Update();
                            myFile.CheckIn(System.DateTime.Today.ToShortDateString() + "Comment: Update document author ");
                        }
                    }
                    myWeb.AllowUnsafeUpdates = false;
                    CloseWindow(true);
                }
                else
                {
                    LabelMessage.Text = "The User not found! Plese change another one.";
                }
            }
        }

3,  关闭窗口：

Code
    private void CloseWindow(bool IsDirty)
    {
        Response.Write(string.Format("<SCRIPT>top.returnValue = {0}; window.close();<" + "/SCRIPT>", (IsDirty ? "1" : "null")));
        Response.End();
    } 

效果：