请教下怎么动态开关主从表中从表的主从属性？

[gpmn]

我想在运行的时候，给一个乒乓按钮，动态切换显示、隐藏主表的dbgrid，同时对从表显示全部数据、或者显示关联数据；

但是下面的代码跑下来，在去掉从属性之后，数据不能全部显示

求高手指点！！！


if(dbgridMaster->Visible){
dbgridMaster->Visible=false;
dsetSlaveSummary->Active = false;
dsetSlaveSummary->MasterSource = NULL;
dsetSlaveSummary->MasterFields = "";
dsetSlaveSummary->IndexFieldNames = "";
dsetSlaveSummary->PacketRecords=-1;
dsetSlaveSummary->Active = true;
}else{
dsetSlaveSummary->Active = false;
dsetSlaveSummary->MasterSource = dsrcMasterSummary;
dsetSlaveSummary->MasterFields = "project_id";
dsetSlaveSummary->IndexFieldNames = "project_id";
dsetSlaveSummary->PacketRecords=0 ;
dsetSlaveSummary->Active = true;
dsetSlaveSummary->Refresh();
dbgridMaster->Visible=true;
}

[gpmn]

呃，0改成-1就好了，靠

[dataxdata]

直接设置主表和从表的visible属性就可以

[宝龙哥]

直接用true和false好了，用0和-1有点