如题，最好有源码
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去查看一下PFC的例子, 好用又简单的：
Examples
This example calls the of_Register function:
this.of_SetLevelSource(TRUE)
this.inv_levelsource.of_Register(1, "dept_name", &
"", "d_deptlist", SQLCA, "")
this.inv_levelsource.of_SetPictureColumn(1, "1")
this.inv_levelsource.of_SetSelectedPictureColumn &
(1, "2")
this.inv_levelsource.of_Register(2, "emp_lname", &
":parent.1.dept_id", "d_empbydept", SQLCA, "")
this.inv_levelsource.of_SetPictureColumn(2, "4")
this.inv_levelsource.of_SetSelectedPictureColumn &
(2, "5")
this.event pfc_populate(0)
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楼主的邮箱地址，我可将一些示例源码发至邮箱
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已经将示例发至邮箱，请查收
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比较复杂一点的
http://download.csdn.net/source/1551384