我的程式碼如下，如果我一一點擊選項1和2，效果很好，但是當我連續點擊選項1後，會產生多個列錶框，這會讓我的用戶感到困惑。 我該如何優化程式碼？ 非常感謝。
另外兩個問題是：
1. 如果我刪除面板框，框內的（如文字框）是否也會被刪除或只是不顯示？
2. 如何取得模態視窗的層次結構？
dt = Current Data Table();
If( Is Empty( dt ),
Stop(),
nc = N Col( dt )
);
openDTs = {};
For( i = 1, i <= N Table(), i++,
Insert Into( openDTs, Data Table( i ) << getname )
);
tableSelBox = Expr(
//Panel Box( "Select Limit Table",
lbtableSel = List Box( openDTs, width( 150 ), nlines( 6 ), maxselected( 1 ), ),
//),
);
nw = New Window( "Auto Plot",
modal,
hb = H List Box(
V List Box(
Panel Box( "Mode Selection",
Spacer Box( size( 100, 0 ) ),
rbMethod = Radio Box(
{"With Current Limit", "Without Current Limit"},
rbSel = rbMethod << get selected;
dbAfterpb = colSelLstBox << Next();
If( rbSel == "With Current Limit",
pb << Sib Append( tableSelBox ),
);
If( rbSel == "Without Current Limit",
dbAfterpb << Delete;
lbtableSel << Delete
),
),
),
Panel Box( "Action",
Spacer Box( size( 100, 0 ) ),
okBb = Button Box( "OK", Stop() ),
cancelBb = Button Box( "Cancel", Stop() ),
),
),
pb = Panel Box( "Select Columns",
colSelLstBox = Filter Col Selector( dt, nlines( Min( nc, 13 ) ) ),
),
pb << Sib Append( tableSelBox ),
),
);
