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■ GridView 클래스 : ExpandMasterRow 메소드를 사용해 마스터 행 확장하기

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TestProject.zip


MainForm.cs

 

 

using System;

using System.Data;

using System.Data.OleDb;

 

using DevExpress.Utils;

using DevExpress.XtraEditors;

using DevExpress.XtraGrid.Views.Grid;

 

namespace TestProject

{

    /// <summary>

    /// 메인 폼

    /// </summary>

    public partial class MainForm : XtraForm

    {

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

        ////////////////////////////////////////////////////////////////////////////////////////// Public

 

        #region 생성자 - MainForm()

 

        /// <summary>

        /// 생성자

        /// </summary>

        public MainForm()

        {

            InitializeComponent();

 

            #region 데이터를 로드한다.

 

            DataSet dataSet = new DataSet();

 

            OleDbConnection connection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=nwind.mdb");

 

            OleDbDataAdapter customersAdapter = new OleDbDataAdapter("SELECT * FROM Customers", connection);

 

            OleDbDataAdapter ordersAdapter = new OleDbDataAdapter("SELECT * FROM Orders", connection);

 

            OleDbDataAdapter orderDetailsAdapter = new OleDbDataAdapter("SELECT * FROM [Order Details]", connection);

 

            customersAdapter.Fill(dataSet, "Customers");

 

            ordersAdapter.Fill(dataSet, "Orders");

 

            orderDetailsAdapter.Fill(dataSet, "Order Details");

 

            DataColumn customerIDKeyColumn        = dataSet.Tables["Customers"].Columns["CustomerID"];

            DataColumn customerIDForeignKeyColumn = dataSet.Tables["Orders"   ].Columns["CustomerID"];

 

            dataSet.Relations.Add("CustomersOrders", customerIDKeyColumn, customerIDForeignKeyColumn);

 

            DataColumn orderIDKeyColumn        = dataSet.Tables["Orders"       ].Columns["OrderID"];

            DataColumn orderIDForeignKeyColumn = dataSet.Tables["Order Details"].Columns["OrderID"];

 

            dataSet.Relations.Add("OrdersOrderDatails", orderIDKeyColumn, orderIDForeignKeyColumn);

 

            #endregion

            #region 조부모 그리드 뷰를 설정한다.

 

            this.gridView1.InitializeView

            (

                true,                           // Multi Select

                GridMultiSelectMode.CellSelect, // Grid Multi Select Mode

                DrawFocusRectStyle.CellFocus,   // Draw Focus Rect Style

                true,                           // Show Indicator

                true,                           // Show Column Headers

                true,                           // Allow Column Moving

                true,                           // Allow Column Resizing

                true,                           // Allow Filter

                true,                           // Allow Sort

                false,                          // Allow Cell Merge

                EditorShowMode.Default,         // Editor Show Mode

                false                           // Editable

            );

 

            this.gridView1.OptionsDetail.EnableMasterViewMode = true;

 

            this.gridView1.OptionsBehavior.AutoPopulateColumns = true;

 

            #endregion

            #region 부모 그리드 뷰를 설정한다.

 

            this.gridView2.InitializeView

            (

                true,                           // Multi Select

                GridMultiSelectMode.CellSelect, // Grid Multi Select Mode

                DrawFocusRectStyle.CellFocus,   // Draw Focus Rect Style

                true,                           // Show Indicator

                true,                           // Show Column Headers

                true,                           // Allow Column Moving

                true,                           // Allow Column Resizing

                true,                           // Allow Filter

                true,                           // Allow Sort

                false,                          // Allow Cell Merge

                EditorShowMode.Default,         // Editor Show Mode

                false                           // Editable

            );

 

            this.gridView2.OptionsBehavior.AutoPopulateColumns = true;

 

            #endregion

            #region 자식 그리드 뷰를 설정한다.

 

            this.gridView3.InitializeView

            (

                true,                           // Multi Select

                GridMultiSelectMode.CellSelect, // Grid Multi Select Mode

                DrawFocusRectStyle.CellFocus,   // Draw Focus Rect Style

                true,                           // Show Indicator

                true,                           // Show Column Headers

                true,                           // Allow Column Moving

                true,                           // Allow Column Resizing

                true,                           // Allow Filter

                true,                           // Allow Sort

                false,                          // Allow Cell Merge

                EditorShowMode.Default,         // Editor Show Mode

                false                           // Editable

            );

 

            this.gridView3.OptionsBehavior.AutoPopulateColumns = true;

 

            #endregion

 

            this.gridControl.DataSource = dataSet;

            this.gridControl.DataMember = "Customers";

 

            this.gridView1.BestFitColumns();

 

            this.gridView1.MasterRowExpanded += gridView_MasterRowExpanded;

            this.executeButton.Click         += executeButton_Click;

        }

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method

        ////////////////////////////////////////////////////////////////////////////////////////// Private

        //////////////////////////////////////////////////////////////////////////////// Event

 

        #region 그리드 뷰 마스터 행 확장시 처리하기 - gridView_MasterRowExpanded(sender, e)

 

        /// <summary>

        /// 그리드 뷰 마스터 행 확장시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void gridView_MasterRowExpanded(object sender, CustomMasterRowEventArgs e)

        {

            GridView gridView = sender as GridView;

 

            GridView childGridView = gridView.GetDetailView(e.RowHandle, e.RelationIndex) as GridView;

 

            if(childGridView.Name == "gridView1")

            {

                childGridView.Name = "gridView2";

 

                childGridView.BestFitColumns();

 

                childGridView.MasterRowExpanded += gridView_MasterRowExpanded;

            }

            else if(childGridView.Name == "gridView2")

            {

                childGridView.Name = "gridView3";

 

                childGridView.BestFitColumns();

            }

        }

 

        #endregion

        #region 실행 버튼 클릭시 처리하기 - executeButton_Click(sender, e)

 

        /// <summary>

        /// 실행 버튼 클릭시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void executeButton_Click(object sender, EventArgs e)

        {

            ExpandRow(this.gridView1, this.gridView1.FocusedRowHandle);

        }

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////// Function

 

        #region 행 확장하기 - ExpandRow(gridView, rowHandle)

 

        /// <summary>

        /// 행 확장하기

        /// </summary>

        /// <param name="gridView">그리드 뷰</param>

        /// <param name="rowHandle">행 핸들</param>

        private void ExpandRow(GridView gridView, int rowHandle)

        {

            int relationCount = gridView.GetRelationCount(rowHandle);

 

            for(int index = relationCount - 1; index >= 0; index--)

            {

                gridView.ExpandMasterRow(rowHandle, index);

 

                GridView childView = gridView.GetDetailView(rowHandle, index) as GridView;

 

                if(childView != null)

                {

                    int childRowCount = childView.DataRowCount;

 

                    for(var handle = 0; handle < childRowCount; handle++)

                    {

                        ExpandRow(childView, handle);

                    }

                }

            }

        }

 

        #endregion

    }

}

 

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Posted by 사용자 icodebroker
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