主题：动态Datalist的新问题

此主题相关图片如下：未命名.jpg


左边的目录树, 后面是动态的Datalist

实现目标: 双击左边的省市, 右边的Datalist动态显示相关省市的客户

我设置了NodeMouseDoubleClick的代码如下:

Dim 省市  As String = e.Form.Controls("TreeView1").Value
Dim cmd As New SQLCommand
Dim dt As DataTable
cmd.CommandText = "Select * From {客户} Where [省市] = '" & 省市 & "'"
dt = cmd.ExecuteReader() '生成统计表
Dim dst As WinForm.DataList = e.Form.Controls("DataList1")
dst.DataTable = dt
dst.Build()

代码出错,麻烦狐老爸看一下,谢谢!