SQLDMO备份SQLServwr2005数据库不显示进度条？

[happying2000]

private void toolBtnBF_ButtonClick(object sender, EventArgs e)
{

//备份
SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
SQLDMO.BackupSink_PercentCompleteEventHandler pceh = new SQLDMO.BackupSink_PercentCompleteEventHandler(Step);
oBackup.PercentComplete += pceh;
try
{
oSQLServer.LoginSecure = false;
oSQLServer.Connect(".", "sa", "sa");
oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
oBackup.Database = "SCXS";
oBackup.Files = @"D:\SCXS";
oBackup.BackupSetName = "SCXS";
oBackup.BackupSetDescription = "数据库备份";
oBackup.Initialize = true;


oBackup.SQLBackup(oSQLServer);


}
catch
{
throw;
}
finally
{
oSQLServer.DisConnect();
}
MessageBox.Show("数据库备份成功!");

}




private void Step(string message, int percent)
{
progressBar1.Value = percent;
Application.DoEvents();
}



这个备份数据库的代码在使用SQL Server 2000的时候可以显示进度条，但是在使用SQL Server2005的时候进度条就是显示不出来。请各位高手帮忙看看到底什么原因？

[happying2000]

就没人知道？？

[水哥阿乐]

帮顶一下

[wuyq11]

SQLDMO.BackupSink_PercentCompleteEventHandler pceh = new SQLDMO.BackupSink_PercentCompleteEventHandler(Step);
sqldmo_backup.PercentComplete += pceh;
private void Step(string message, int percent)
{
}
Step 带个 Percent 百分比参数，把它返回的值付给进度条控件的value

[happying2000]

后面不是写了
private void Step(string message, int percent)
{
progressBar1.Value = percent;
Application.DoEvents();
}

[happying2000]

这段代码在SQL Server 2000中能很好的运行起来，也能出现进度条效果。为什么在Sql Server 2005的时候就不行呢？

[happying2000]

???????????