C#数据恢复出现的错误

Question

代码如下:
 private void 数据恢复ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                this.label1.Visible = true;
                this.label1.Refresh();
                this.progressBar1.Visible = true;
                this.groupBox1.Visible = true;
                this.label1.Text = "进行数据库恢复中...";
                SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();
                //try
                //{
                    svr.Connect("127.0.0.1", "sa", "");
                    //杀死所有有关的进程   
                    SQLDMO.QueryResults qr = svr.EnumProcesses(-1);
                    int iColPIDNum = -1;
                    int iColDbName = -1;
                    for (int i = 1; i <= qr.Columns; i++)
                    {
                        string strName = qr.get_ColumnName(i);
                        if (strName.ToUpper().Trim() == "SPID") iColPIDNum = i;
                        else if (strName.ToUpper().Trim() == "DBNAME") iColDbName = i;
                        if (iColPIDNum != -1 && iColDbName != -1) break;
                    }                    for (int i = 1; i <= qr.Rows; i++)
                    {
                        int lPID = qr.GetColumnLong(i, iColPIDNum);
                        string strDBName = qr.GetColumnString(i, iColDbName);
                        if (strDBName.ToUpper() == strDBName.ToUpper()) svr.KillProcess(lPID); \\提示此处发生错误,[Microsoft][ODBC SQL Server Driver][SQL Server]只能取消用户进程。
                    }                    SQLDMO.Restore res = new SQLDMO.RestoreClass();
                    res.Action = 0;
                    SQLDMO.RestoreSink_PercentCompleteEventHandler pceh = new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step);
                    res.PercentComplete += pceh;
                    res.Files = openFileDialog1.FileName.Trim();
                    res.Database = "test";
                    res.ReplaceDatabase = true;
                    res.SQLRestore(svr);
                    MessageBox.Show("数据库恢复成功!", "系统提示！", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                //}
                //catch (Exception err)
                //{
                //    throw (new Exception("恢复数据库失败,请关闭所有和该数据库连接的程序!\n如果在桌面进行恢复请改变路径!\n\n" + err.Message));
                //}
                //finally
                //{
                    svr.DisConnect();
                //}
                this.groupBox1.Visible = false;
                this.label1.Visible = false;
                this.progressBar1.Visible = false;
               
            }
        }无法实现数据库恢复...哪为大虾指教下.这个代码是晚上找的,稍做了修改..自己并不是非常理解.

Answer 1

public string dataRestore(string strDbName, string filepath)//strDbName数据库名称，filepath备份文件路径
    {
        SQLDMO.Restore oRestore = new SQLDMO.RestoreClass();
        SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
        try
        {
            oSQLServer.LoginSecure = false;
            oSQLServer.Connect("localhost", "sa", "");
            SQLDMO.QueryResults qr = oSQLServer.EnumProcesses(-1);
            int iColPIDNum = -1;
            int iColDbName = -1;
            for (int i = 1; i <= qr.Columns; i++)
            {
                string strName = qr.get_ColumnName(i);
                if (strName.ToUpper().Trim() == "SPID")
                {
                    iColPIDNum = i;
                }
                else if (strName.ToUpper().Trim() == "DBNAME")
                {
                    iColDbName = i;
                }
                if (iColPIDNum != -1 && iColDbName != -1)
                    break;
            }            for (int i = 1; i <= qr.Rows; i++)
            {
                int lPID = qr.GetColumnLong(i, iColPIDNum);
                string strDBName = qr.GetColumnString(i, iColDbName);
                if (strDBName.ToUpper() == strDbName.ToUpper())
                    oSQLServer.KillProcess(lPID);
            }            oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
            oRestore.Database = strDbName;
            oRestore.Files = filepath;
            oRestore.FileNumber = 1;
            oRestore.ReplaceDatabase = true;
            oRestore.SQLRestore(oSQLServer);
            return "恢复数据库成功";
        }
        catch (Exception ee)
        {            
            System.Web.HttpContext.Current.Response.Write(ee.Message);
            return "恢复数据库失败";
        }
        finally
        {
            oSQLServer.DisConnect();
        }    }这是我用的还原数据库的函数，你试试吧

Answer 2

if (strDBName.ToUpper() == strDBName.ToUpper()) svr.KillProcess(lPID);
你这里有问题吧，if里的比较错了，前后一样.....

Answer 3

恩...问题解决了;主要是在变量的声名上出了问题.
代码如下:
           private void 数据恢复ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                this.label1.Visible = true;
                this.label1.Refresh();
                this.progressBar1.Visible = true;
                this.groupBox1.Visible = true;
                this.label1.Text = "进行数据库恢复中...";
                //myspace.myclass mystr = new myspace.myclass();
                //bool test = new bool();
                //test = mystr.dataRestore("test", openFileDialog1.FileName.Trim());
                //if (test = true) MessageBox.Show("数据库恢复成功!", "系统提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
                //else MessageBox.Show("数据库恢复出错!", "系统提示！", MessageBoxButtons.OK, MessageBoxIcon.Warning);                string strDbName = "test";
                string selfName = openFileDialog1.FileName.Trim();
                SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();
                try
                {
                    svr.Connect("127.0.0.1", "sa", "");
                    //杀死所有有关的进程   
                    SQLDMO.QueryResults qr = svr.EnumProcesses(-1);
                    int iColPIDNum = -1;
                    int iColDbName = -1;
                    for (int i = 1; i <= qr.Columns; i++)
                    {
                        string strName = qr.get_ColumnName(i);
                        if (strName.ToUpper().Trim() == "SPID") iColPIDNum = i;
                        else if (strName.ToUpper().Trim() == "DBNAME") iColDbName = i;
                        if (iColPIDNum != -1 && iColDbName != -1) break;
                    }                    for (int i = 1; i <= qr.Rows; i++)
                    {
                        int lPID = qr.GetColumnLong(i, iColPIDNum);
                        string strDBName = qr.GetColumnString(i, iColDbName);
                        if (strDBName.ToUpper() == strDbName.ToUpper()) svr.KillProcess(lPID);
                    }                    SQLDMO.Restore res = new SQLDMO.RestoreClass();
                    res.Action = 0;
                    SQLDMO.RestoreSink_PercentCompleteEventHandler pceh = new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step);
                    res.PercentComplete += pceh;
                    res.Files = selfName;
                    res.Database = strDbName;
                    res.ReplaceDatabase = true;
                    res.SQLRestore(svr);
                    MessageBox.Show("数据库恢复成功!", "系统提示！", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
                catch (Exception err)
                {
                    throw (new Exception("恢复数据库失败,请关闭所有和该数据库连接的程序!\n如果在桌面进行恢复请改变路径!\n\n" + err.Message));
                }
                finally
                {
                    svr.DisConnect();
                }
                this.groupBox1.Visible = false;
                this.label1.Visible = false;
                this.progressBar1.Visible = false;
               
            }
        }