Question

我是Visual FoxPro的新成员，遇到了一些困难

我有combobox（combo1），listbox（list1）和表（table1和table2） combo1的rowsource是table1.records 如果我在combo1中选择一条记录，它将显示从table2到list1的所有数据

是否可以这样做？感谢您的帮助：）

Answer 1

请记住，这只是基于“猜测”的示例：

Public oForm
oForm = Createobject('SampleForm')
oForm.Show()


Define Class SampleForm As Form
    Height = 800
    Width=600
    DataSession = 2
    Add Object cmbCustomers As ComboBox With Top=10, Left=10, Width=250
    Add Object lstOrders As ListBox With Top=10, Left=280, Height=780, Width=310

    Procedure Init
        With This.cmbCustomers
            .RowSourceType = 3 && -SQL
            .RowSource = "select CompanyName, CustomerId from ('"+;
                _Samples+;
                "Northwind\Customers') into cursor crsCustomers nofilter"
            .ListIndex=1
        Endwith
        With This.lstOrders
            .RowSourceType = 3 && -SQL
            .RowSource = "select OrderId, OrderDate, ShippedDate, CustomerId from ('"+;
                _Samples+;
                "Northwind\Orders') o"+;
                " where o.CustomerId = crsCustomers.CustomerId"+;
                " into cursor crsOrders nofilter"
            .ColumnCount = 3
            .ColumnWidths = '70,120,120'
        Endwith
    Endproc

    Procedure cmbCustomers.InteractiveChange
        With Thisform.lstOrders
            .ListIndex = 0
            .Requery()
        Endwith
    Endproc
Enddefine

VFP组合框显示所有数据到列表框

1 个答案: