修复了当我使用 for 循环还原许多 SQL Server 数据库时卡住的问题

我需要在 TreeView 中遍历我的所有数据库，然后选择 TreeNode 作为要还原的数据库名称。如果我只选择 1、2 或 3 个数据库进行还原，我的代码工作正常。但是如果我选择许多数据库，它就会挂起。

请检查我的代码并帮助我..

            foreach (TreeNode tn in trvList.Nodes)
            {
                if (tn.Checked == true)
                { 
                        strFileName = GetFileTorestor(strRealdb);//Check File Directory to restore example : C:data'tn.text.
                        if (strFileName != "")
                        {
                            RestoreDatabase(res, tn);
                        }
                        else
                        {
                            strErorLog += "'r'n -" + tn.Text;
                            blIsEror = true;
                            MessageBox.Show("Database " + tn.Text + " has not found!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                        }                                 
                }
            }       

    /// <summary>
    /// Restore database according to treenode selected.
    /// </summary>
    /// <param name="res"></param>
    /// <param name="tn"></param>
    private void RestoreDatabase(Restore res,TreeNode tn)
    {
        res.Database = tn.Text;
        res.Action = RestoreActionType.Database;
        res.Devices.AddDevice(strFileName, DeviceType.File);
        res.ReplaceDatabase = true;
        this.pgrRestore.Value = 0;
        this.pgrRestore.Maximum = 100;
        //res.Complete += new ServerMessageEventHandler(sqlRestore_Complete);
        res.PercentCompleteNotification = 5;
        res.PercentComplete += new PercentCompleteEventHandler(sqlRestore_PercentComplete);
        res.SqlRestore(DBHelper.Server);
        stLog += "'r'n " + tn.Text + " from file " + strFileName;//Record database name already restore to log text
        txtLog.Text = stLog;
        txtLog.Refresh();
    }