返回或设置行所属的分组。

示例

Dim lvw As WinForm.ListView = e.Form.Controls("ListView1")
Dim nms1() As String = {"张飞","关羽","张云","马超","黄忠"}
Dim nms2() As String = {"庞统","徐庶","孔明","程昱","贾栩"} 
lvw.Groups.Add("武将") '添加分组
lvw.Groups.Add("谋士") '添加分组
For Each nm As String In nms1
    Dim vr As WinForm.ListViewRow = lvw.Rows.Add()
    vr.Text = nm  '设置行标题
    vr.Group = "武将"  '设置行的分组
Next
For Each nm As String In nms2
    Dim vr As WinForm.ListViewRow = lvw.Rows.Add()
    vr.Text = nm  '设置行标题
    vr.Group = "谋士"  '设置行的分组
Next