datagridview折叠显示 在线等待
winform datagridview折叠显示
 <NorthwindCustomerOrders>
  <Customers>
  <CustomerID>001</CustomerID>
  <CompanyName>Alfreds Futterkiste</CompanyName>
  <ContactName>Maria Anders</ContactName>
  <ContactTitle>Sales Representative</ContactTitle>
  <Address>Obere Str</Address>
  <City>Berlin</City>
  <PostalCode>12209</PostalCode>
  <Country>Germany</Country>
  <Phone>030-0074321</Phone>
  <Fax>030-0076545</Fax>
  </Customers>
  <Customers>
  <CustomerID>ANATR</CustomerID>
  <CompanyName>Ana Trujillo Emparedados y helados</CompanyName>
  <ContactName>Ana Trujillo</ContactName>
  <ContactTitle>Owner</ContactTitle>
  <Address>Avda. de la Constitución 2222</Address>
  <City>México D.F.</City>
  <PostalCode>05021</PostalCode>
  <Country>Mexico</Country>
  <Phone>(5) 555-4729</Phone>
  <Fax>(5) 555-3745</Fax>
  </Customers>
  <Customers>
</NorthwindCustomerOrders>




------解决方案--------------------
要么自己重绘grid（google "datagridview 树形"），要么使用第三方的
------解决方案--------------------
http://www.cnblogs.com/lichence/archive/2011/08/18/2145001.html