■ BindingSource 클래스를 사용하는 방법을 보여준다.
▶ DataSetForm.cs
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using System; using System.ComponentModel; using System.Data; using System.Windows.Forms; namespace TestProject { /// <summary> /// DataSet 폼 /// </summary> public partial class DataSetForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 항공편 바인딩 소스 /// </summary> private BindingSource airplaneBindingSource = new BindingSource(); /// <summary> /// 탑승객 바인딩 소스 /// </summary> private BindingSource passengerBindingSource = new BindingSource(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - DataSetForm() /// <summary> /// 생성자 /// </summary> public DataSetForm() { InitializeComponent(); #region 이벤트를 설정한다. Load += Form_Load; this.passengerBindingSource.ListChanged += passengerBindingSource_ListChanged; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { DataSet airplaneDataSet = GetAirplaneDataSet(); DataTable airplaneDataTable = airplaneDataSet.Tables["Airplane" ]; DataTable passengerDataTable = airplaneDataSet.Tables["Passenger"]; this.airplaneBindingSource.DataSource = airplaneDataSet; this.airplaneBindingSource.DataMember = airplaneDataTable.TableName; this.passengerBindingSource.DataSource = airplaneDataSet; this.passengerBindingSource.DataMember = passengerDataTable.TableName; DataRow airplaneDataRow1; DataRow airplaneDataRow2; DataRow airplaneDataRow3; airplaneDataRow1 = airplaneDataTable.Rows.Add(null, "Boeing 747" , 800 ); airplaneDataRow2 = airplaneDataTable.Rows.Add(null, "Airbus A380", 1023); airplaneDataRow3 = airplaneDataTable.Rows.Add(null, "Cessna 162" , 67 ); passengerDataTable.Rows.Add(null, airplaneDataRow1["ID"], "Joe Shmuck" ); passengerDataTable.Rows.Add(null, airplaneDataRow1["ID"], "Jack B. Nimble"); passengerDataTable.Rows.Add(null, airplaneDataRow1["ID"], "Jib Jab" ); passengerDataTable.Rows.Add(null, airplaneDataRow2["ID"], "Jackie Tyler" ); passengerDataTable.Rows.Add(null, airplaneDataRow2["ID"], "Jane Doe" ); passengerDataTable.Rows.Add(null, airplaneDataRow3["ID"], "John Smith" ); this.airplaneDataGridView.AutoGenerateColumns = true; this.airplaneDataGridView.DataSource = this.airplaneBindingSource; this.modelTextBox.DataBindings.Add("Text", this.airplaneBindingSource, "Model"); this.passengerBindingSource.DataSource = this.airplaneBindingSource; this.passengerBindingSource.DataMember = "AirplanePassenger"; this.passengerListBox.DisplayMember = "Name"; this.passengerListBox.DataSource = this.passengerBindingSource; this.nameTextBox.DataBindings.Add("Text", this.passengerBindingSource, "Name"); } #endregion #region 탑승객 바인딩 소스 리스트 변경시 처리하기 - passengerBindingSource_ListChanged(sender, e) /// <summary> /// 탑승객 바인딩 소스 리스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void passengerBindingSource_ListChanged(object sender, ListChangedEventArgs e) { if(e.ListChangedType == ListChangedType.Reset) { this.nameTextBox.Enabled = this.passengerBindingSource.Current != null; } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 항공편 데이터 셋 구하기 - GetAirplaneDataSet() /// <summary> /// 항공편 데이터 셋 구하기 /// </summary> /// <returns>항공편 데이터 셋</returns> private DataSet GetAirplaneDataSet() { DataSet airplaneDataSet = new DataSet(); DataTable airplaneDataTable = airplaneDataSet.Tables.Add("Airplane"); airplaneDataTable.Columns.Add("ID" , typeof(int )); airplaneDataTable.Columns.Add("Model" , typeof(string)); airplaneDataTable.Columns.Add("FuelLeft", typeof(int )); DataColumn idDataColumn = airplaneDataTable.Columns["ID"]; idDataColumn.AutoIncrement = true; idDataColumn.AutoIncrementSeed = 1; idDataColumn.AutoIncrementStep = 1; DataTable passengerTable = airplaneDataSet.Tables.Add("Passenger"); passengerTable.Columns.Add("ID" , typeof(int )); passengerTable.Columns.Add("AirplaneID", typeof(int )); passengerTable.Columns.Add("Name" , typeof(string)); idDataColumn = passengerTable.Columns["ID"]; idDataColumn.AutoIncrement = true; idDataColumn.AutoIncrementSeed = 1; idDataColumn.AutoIncrementStep = 1; DataRelation dataRelation = airplaneDataSet.Relations.Add ( "AirplanePassenger", airplaneDataTable.Columns["ID"], passengerTable.Columns["AirplaneID"], true ); return airplaneDataSet; } #endregion } } |
▶ ObjectCollectionForm.cs
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using System; using System.ComponentModel; using System.Windows.Forms; namespace TestProject { /// <summary> /// Object 컬렉션 폼 /// </summary> public partial class ObjectCollectionForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 항공편 바인딩 소스 /// </summary> private BindingSource airplaneBindingSource = new BindingSource(); /// <summary> /// 탑승객 바인딩 소스 /// </summary> private BindingSource passengerBindingSource = new BindingSource(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ObjectCollectionForm() /// <summary> /// 생성자 /// </summary> public ObjectCollectionForm() { InitializeComponent(); #region 이벤트를 설정한다. Load += Form_Load; this.passengerBindingSource.ListChanged += passengerBindingSource_ListChanged; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { Airplane airplane1 = new Airplane("Boeing 747" , 800 ); Airplane airplane2 = new Airplane("Airbus A380", 1023); Airplane airplane3 = new Airplane("Cessna 162" , 67 ); airplaneBindingSource.Add(airplane1); airplaneBindingSource.Add(airplane2); airplaneBindingSource.Add(airplane3); airplane1.PassengerList.Add(new Passenger("Joe Shmuck" )); airplane1.PassengerList.Add(new Passenger("Jack B. Nimble")); airplane1.PassengerList.Add(new Passenger("Jib Jab" )); airplane2.PassengerList.Add(new Passenger("Jackie Tyler" )); airplane2.PassengerList.Add(new Passenger("Jane Doe" )); airplane3.PassengerList.Add(new Passenger("John Smith" )); this.airplaneDataGridView.AutoGenerateColumns = true; this.airplaneDataGridView.DataSource = this.airplaneBindingSource; this.modelTextBox.DataBindings.Add("Text", airplaneBindingSource, "Model"); this.passengerBindingSource.DataMember = "PassengerList"; this.passengerBindingSource.DataSource = this.airplaneBindingSource; this.passengerListBox.DisplayMember = "Name"; this.passengerListBox.DataSource = passengerBindingSource; this.nameTextBox.DataBindings.Add("Text", passengerBindingSource, "Name"); ((BindingList<Airplane>)this.airplaneBindingSource.List).AllowNew = true; ((BindingList<Airplane>)this.airplaneBindingSource.List).AllowRemove = true; } #endregion #region 탑승객 바인딩 소스 리스트 변경시 처리하기 - passengerBindingSource_ListChanged(sender, e) /// <summary> /// 탑승객 바인딩 소스 리스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void passengerBindingSource_ListChanged(object sender, ListChangedEventArgs e) { if(e.ListChangedType == ListChangedType.Reset) { this.nameTextBox.Enabled = this.passengerBindingSource.Current != null; } } #endregion } } |
