文本框获得焦点有关问题_VFP

文本框获得焦点问题
代码如下

SQL code

lnHandle=SQLConnect(lcODBCName,lcDBUser,lcDBPasswd)If lnHandle>0 &&连接成功    **查询数据)        If 1<=SQLExec(lnHandle,"select count(g_zhh) g_zhh from gp_g_xxb where g_zhh='"+Alltrim(Thisform.text11.Value)+"'",'ct3')            If ct3.g_zhh<1                Thisform.text11.Value=""                 thisform.text11.setFocus                  Messagebox("无此信息 请认真核对",0,"提示")                *GRID数据                thisform.grid1.recordsource=null                thisform.grid1.refresh             else                       ENDIF        else        EndifElse &&连接失败    Messagebox("连接SQL SERVER失败",16,"提示")Endif

当确定完Messagebox后，鼠标的焦点不在text11上，请问这个应该如何解决

------解决方案--------------------------------------------------------
改为如下：

SQL code

lnHandle=SQLConnect(lcODBCName,lcDBUser,lcDBPasswd)If lnHandle>0 &&连接成功    **查询数据)    If 1<=SQLExec(lnHandle,"select count(g_zhh) g_zhh from gp_g_xxb where g_zhh='"+Alltrim(Thisform.text11.Value)+"'",'ct3')        If ct3.g_zhh<1            Thisform.text11.Value=""            Messagebox("无此信息 请认真核对",0,"提示")            *GRID数据            Thisform.grid1.RecordSource=Null            Thisform.grid1.Refresh            Thisform.text11.SetFocus            Return        Else        Endif    Else    EndifElse &&连接失败    Messagebox("连接SQL SERVER失败",16,"提示")Endif