WPF中DataGrid使用初步

（1）自动生成列

<DataGrid AutoGenerateColumns="True" Name="datagrid" CanUserAddRows="False" MouseDoubleClick="datagrid_MouseDoubleClick" />

（2）取消自动生成列，手动绑定到相应字段

<DataGrid AutoGenerateColumns="False" Name="datagrid" CanUserAddRows="False" MouseDoubleClick="datagrid_MouseDoubleClick">
    <DataGrid.Columns>
        <DataGridTextColumn Header="编号" Binding="{Binding ID}"></DataGridTextColumn>
        <DataGridTextColumn Header="公司" Binding="{Binding CompanyName}"></DataGridTextColumn>
        <DataGridTextColumn Header="固定资产" Binding="{Binding FixedAssets}" Width ="*"></DataGridTextColumn>
    </DataGrid.Columns>
</DataGrid>

最后一列设置Width ="*"是为了取消空白列。

（3）后台代码

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    datagrid.ItemsSource = AccessDAL.OleDbHelper.ExecuteDataTable("SELECT * from Customers").DefaultView;
} 

//双击DataGrid，显示相应信息

private void datagrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    DataRowView row = datagrid.SelectedItem as DataRowView;
    MessageBox.Show(row["id"].ToString());
}

 //如果绑定到对象集合，如ObservableCollection<Employee>，代码如下：

ObservableCollection<Employee> col;
public EmployeeManage()
{
    InitializeComponent();
    col = new ObservableCollection<Employee>();
    col.Add(new Employee() { Id = 1, Name = "Jim", Salary = 2500.50f });
    col.Add(new Employee() { Id = 2, Name = "John", Salary = 2600.50f });
    datagrid.ItemsSource = col;
}

private void datagrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    Employee emp=datagrid.SelectedItem as Employee;
    MessageBox.Show(emp.Id.ToString());
}

（4）删除选中的多行数据

private void Delete_Click(object sender, RoutedEventArgs e) 
{
    for (int i = datagrid.SelectedItems.Count - 1; i >= 0; i--)
    {
        Good good = datagrid.SelectedItems[i] as Good;
        goods.Remove(good);
    }
}

拣尽寒枝不肯栖，寂寞沙洲冷。