Using Linq for Master Detail in a DataGridView

xblues

Windows Forms Data Controls and Databinding

Step 1

         Open up Visual Studio 2008 Beta 2 and create a windows forms application

Step 2

         Add a new Linq to Sql classes to the project I named mine Northwind.dbml

Step 3

        I dragged the Northwind databases Orders and Order Details tables on the surface

Step 4

        Save the project and build it

Step 5 这一步是关键

       Open the datasources window and add a new object data source.  Select the Orders table

Step 6

        Drag the orders table on your windows form

Step 7

        Drag the orders_details table on the form

Step 8

        In the form load event add this code

1. private void Form1_Load(object sender, EventArgs e)
   
2. {
   
3.         NorthwindDataContext db = new NorthwindDataContext();
   
4.         orderBindingSource.DataSource = from o in db.Orders select o;
   
5. }

复制代码

原文：
http://forums.microsoft.com/MSDN ... 019272&SiteID=1

这么容易就建立了一个主从表界面，厉害！

[ 本帖最后由 xblues 于 8-7-2008 01:53 编辑 ]