使用ComboBox和DataGridView创建主/细节

1)为两个表设置一个绑定源。

BindingSource bsGroup = new BindingSource();
BindingSource bsUser  = new BindingSource();
bsGroup.DataSource = MyDataSet.Tables["Group"];
bsUser.DataSource = MyDataSet.Tables["User"];

2)设置组合和网格数据源。

MyCombo.DataSource    = bsGroup;
MyCombo.DisplayMember = "GroupName"; // whatever your ColumnName is
MyCombo.ValueMember   = "GroupID";
MyGrid.DataSource = bsUser;

3)为组合设置SelectedIndexChanged事件,并使用该事件更改bsuser bindingsource上的筛选器。

MyCombo.SelectedIndexChanged += new System.EventHandler(MyCombo_SelectedIndexChanged);
private void MyCombo_SelectedIndexChanged(object sender, System.EventArgs e)
{
    // this will depend on what your column names are, obviously
    string filter = string.Format("GroupID = {0}", MyCombo.SelectedValue);
    bsUser.Filter = filter;
}

这很管用…取自 here .

(是的,我也在msdn上贴了这个,因为我赶时间)