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Nasıl Yapılır: İki Windows Forms DataGridView Denetimi Kullanarak Ana/Ayrıntı Formu Oluşturma

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Aşağıdaki kod örneği, iki BindingSource bileşene bağlı iki DataGridView denetim kullanarak bir ana/ayrıntı formu oluşturur. Veri kaynağı, Northwind SQL Server örnek veritabanındaki ve tablolarının yanı sıra ikisini sütunla ilişkilendiren bir DataRelation veri kaynağıdır DataSetCustomerID.OrdersCustomers

Biri BindingSource veri kümesindeki üst Customers tabloya bağlıdır. Bu veriler ana DataGridView denetimde görüntülenir. Diğeri BindingSource ilk veri bağlayıcısına bağlıdır. İkincinin DataMemberBindingSource özelliği ada ayarlanır DataRelation . Bu, ilişkili ayrıntı DataGridView denetiminin ana DataGridView denetimdeki geçerli satıra karşılık gelen alt Orders tablonun satırlarını görüntülemesine neden olur.

Bu kod örneğinin tam açıklaması için bkz . İzlenecek Yol: İki Windows Forms DataGridView Denetimi Kullanarak Ana/Ayrıntı Formu Oluşturma.

Örnek

using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;

public class Form1 : System.Windows.Forms.Form
{
    private DataGridView masterDataGridView = new DataGridView();
    private BindingSource masterBindingSource = new BindingSource();
    private DataGridView detailsDataGridView = new DataGridView();
    private BindingSource detailsBindingSource = new BindingSource();

    [STAThreadAttribute()]
    public static void Main()
    {
        Application.Run(new Form1());
    }

    // Initializes the form.
    public Form1()
    {
        masterDataGridView.Dock = DockStyle.Fill;
        detailsDataGridView.Dock = DockStyle.Fill;

        SplitContainer splitContainer1 = new SplitContainer();
        splitContainer1.Dock = DockStyle.Fill;
        splitContainer1.Orientation = Orientation.Horizontal;
        splitContainer1.Panel1.Controls.Add(masterDataGridView);
        splitContainer1.Panel2.Controls.Add(detailsDataGridView);

        this.Controls.Add(splitContainer1);
        this.Load += new System.EventHandler(Form1_Load);
        this.Text = "DataGridView master/detail demo";
    }

    private void Form1_Load(object sender, System.EventArgs e)
    {
        // Bind the DataGridView controls to the BindingSource
        // components and load the data from the database.
        masterDataGridView.DataSource = masterBindingSource;
        detailsDataGridView.DataSource = detailsBindingSource;
        GetData();

        // Resize the master DataGridView columns to fit the newly loaded data.
        masterDataGridView.AutoResizeColumns();

        // Configure the details DataGridView so that its columns automatically
        // adjust their widths when the data changes.
        detailsDataGridView.AutoSizeColumnsMode =
            DataGridViewAutoSizeColumnsMode.AllCells;
    }

    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=localhost";
            SqlConnection connection = new SqlConnection(connectionString);

            // Create a DataSet.
            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", connection);
            masterDataAdapter.Fill(data, "Customers");

            // Add data from the Orders table to the DataSet.
            SqlDataAdapter detailsDataAdapter = new
                SqlDataAdapter("select * from Orders", connection);
            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.");
        }
    }
}

Imports System.Data
Imports System.Data.SqlClient
Imports System.Windows.Forms

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private masterDataGridView As New DataGridView()
    Private masterBindingSource As New BindingSource()
    Private detailsDataGridView As New DataGridView()
    Private detailsBindingSource As New BindingSource()

    <STAThreadAttribute()> _
    Public Shared Sub Main()
        Application.Run(New Form1())
    End Sub

    ' Initializes the form.
    Public Sub New()

        masterDataGridView.Dock = DockStyle.Fill
        detailsDataGridView.Dock = DockStyle.Fill

        Dim splitContainer1 As New SplitContainer()
        splitContainer1.Dock = DockStyle.Fill
        splitContainer1.Orientation = Orientation.Horizontal
        splitContainer1.Panel1.Controls.Add(masterDataGridView)
        splitContainer1.Panel2.Controls.Add(detailsDataGridView)

        Me.Controls.Add(splitContainer1)
        Me.Text = "DataGridView master/detail demo"

    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) _
        Handles Me.Load

        ' Bind the DataGridView controls to the BindingSource
        ' components and load the data from the database.
        masterDataGridView.DataSource = masterBindingSource
        detailsDataGridView.DataSource = detailsBindingSource
        GetData()

        ' Resize the master DataGridView columns to fit the newly loaded data.
        masterDataGridView.AutoResizeColumns()

        ' Configure the details DataGridView so that its columns automatically
        ' adjust their widths when the data changes.
        detailsDataGridView.AutoSizeColumnsMode = _
            DataGridViewAutoSizeColumnsMode.AllCells

    End Sub

    Private Sub 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.
            Dim connectionString As String = _
                "Integrated Security=SSPI;Persist Security Info=False;" & _
                "Initial Catalog=Northwind;Data Source=localhost"
            Dim connection As New SqlConnection(connectionString)

            ' Create a DataSet.
            Dim data As New DataSet()
            data.Locale = System.Globalization.CultureInfo.InvariantCulture

            ' Add data from the Customers table to the DataSet.
            Dim masterDataAdapter As _
                New SqlDataAdapter("select * from Customers", connection)
            masterDataAdapter.Fill(data, "Customers")

            ' Add data from the Orders table to the DataSet.
            Dim detailsDataAdapter As _
                New SqlDataAdapter("select * from Orders", connection)
            detailsDataAdapter.Fill(data, "Orders")

            ' Establish a relationship between the two tables.
            Dim relation As 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 ex As SqlException
            MessageBox.Show("To run this example, replace the value of the " & _
                "connectionString variable with a connection string that is " & _
                "valid for your system.")
        End Try

    End Sub

End Class

Kod Derleniyor

Bu örnek şunları gerektirir:

System, System.Data, System.Windows.Forms ve System.XML derlemelerine başvurular.

.NET Framework Güvenliği

Parola gibi hassas bilgilerin bağlantı dizesi depolanması uygulamanızın güvenliğini etkileyebilir. Windows Kimlik Doğrulaması (tümleşik güvenlik olarak da bilinir) kullanılarak bir veritabanına erişimi denetlemek için daha güvenli bir yoldur. Daha fazla bilgi için bkz. Bağlan Bilgilerini Koruma.

Ayrıca bkz.