我想做一个主/详细页面，其中父（客户信息）是窗口上半部分的表单，然后是屏幕下半部分的订单数据网格视图？
我发现了一篇文章，该示例在此处使用 2 个 datagridviews并尝试从那里开始。
我从包含 ParentID 的单个文本框开始（我使用的是 Northwind 客户/订单）。这适用于现有记录。我如何处理想要同时添加新客户和订单的问题？
using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
DataSet data;
private BindingSource masterBindingSource = new BindingSource();
private BindingSource detailsBindingSource = new BindingSource();
public Form1()
{
InitializeComponent();
}
private void GetData()
{
try
{
// Specify a connection string. Replace the given value with a
// valid connection string for a Northwind SQL Server sample
// database accessible to your system.
String connectionString =
"Integrated Security=SSPI;Persist Security Info=False;" +
"Initial Catalog=Northwind;Data Source=.\\SQLEXPRESS";
SqlConnection connection = new SqlConnection(connectionString);
// Create a DataSet.
data = new DataSet();
data.Locale = System.Globalization.CultureInfo.InvariantCulture;
// Add data from the Customers table to the DataSet.
SqlDataAdapter masterDataAdapter = new
SqlDataAdapter("select * from Customers where CustomerID = @id", connection);
masterDataAdapter.SelectCommand.Parameters.AddWithValue("@id", lblParentId.Text);
masterDataAdapter.Fill(data, "Customers");
// Add data from the Orders table to the DataSet.
SqlDataAdapter detailsDataAdapter = new
SqlDataAdapter("select * from Orders where CustomerID = @id", connection);
detailsDataAdapter.SelectCommand.Parameters.AddWithValue("@id", lblParentId.Text);
detailsDataAdapter.Fill(data, "Orders");
// Establish a relationship between the two tables.
DataRelation relation = new DataRelation("CustomersOrders",
data.Tables["Customers"].Columns["CustomerID"],
data.Tables["Orders"].Columns["CustomerID"]);
data.Relations.Add(relation);
// Bind the master data connector to the Customers table.
masterBindingSource.DataSource = data;
masterBindingSource.DataMember = "Customers";
// Bind the details data connector to the master data connector,
// using the DataRelation name to filter the information in the
// details table based on the current row in the master table.
detailsBindingSource.DataSource = masterBindingSource;
detailsBindingSource.DataMember = "CustomersOrders";
}
catch (SqlException)
{
MessageBox.Show("To run this example, replace the value of the " +
"connectionString variable with a connection string that is " +
"valid for your system.");
}
}
private void btnLoadDetail_Click(object sender, EventArgs e)
{
lblParentId.Text = textBox1.Text;
GetData();
//textBox1.DataBindings.Add("Text", data.Tables[0], "CustomerID");
dataGridView1.DataSource = detailsBindingSource;
}
}
}