[C#/WINFORM/DEVEXPRESS] CardView 클래스 : 상세 뷰 사이의 카드 드래그(DRAG) 사용하기

■ CardView 클래스에서 상세 뷰 사이의 카드 드래그(DRAG)를 사용하는 방법을 보여준다.

▶ MainForm.cs


using System;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Windows.Forms;

using DevExpress.Utils;
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Controls;
using DevExpress.XtraEditors.Repository;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Views.Card;
using DevExpress.XtraGrid.Views.Card.ViewInfo;
using DevExpress.XtraGrid.Views.Grid;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : XtraForm
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 데이터 셋
        /// </summary>
        private DataSet dataSet = null;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            #region 데이터를 로드한다.

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

            OleDbDataAdapter categoryAdapter = new OleDbDataAdapter
            (
                "SELECT CategoryID, CategoryName, Picture FROM Categories",
                connection
            );

            OleDbDataAdapter productAdapter  = new OleDbDataAdapter
            (
                "SELECT CategoryID, ProductID, ProductName, UnitPrice FROM Products",
                connection
            );

            this.dataSet = new DataSet();

            categoryAdapter.Fill(this.dataSet, "Categories");
            productAdapter.Fill (this.dataSet, "Products"  );

            DataTable categoryTable = this.dataSet.Tables["Categories"];
            DataTable productTable  = this.dataSet.Tables["Products"  ];

            productTable.PrimaryKey = new DataColumn[] { productTable.Columns["ProductID"] };

            DataColumn keyColumn        = categoryTable.Columns["CategoryID"];
            DataColumn foreignKeyColumn = productTable.Columns ["CategoryID"];

            this.dataSet.Relations.Add("CategoriesProducts", keyColumn, foreignKeyColumn);

            #endregion
            #region 저장소 항목 픽처 에디터를 설정한다.

            RepositoryItemPictureEdit repositoryItemPictureEdit = new RepositoryItemPictureEdit();

            repositoryItemPictureEdit.SizeMode = PictureSizeMode.Stretch;

            #endregion

            this.gridControl.RepositoryItems.Add(repositoryItemPictureEdit);

            this.gridControl.AllowDrop = true;

            CardView cardView = new CardView(this.gridControl);

            cardView.ViewCaption = "Category Products";

            this.gridControl.LevelTree.Nodes.Add("CategoriesProducts", cardView);

            this.gridControl.DataSource = categoryTable;

            this.gridView.RowHeight = 50;

            this.gridView.Columns["CategoryID"].VisibleIndex = -1;

            this.gridView.Columns["Picture"].ColumnEdit               = repositoryItemPictureEdit;
            this.gridView.Columns["Picture"].OptionsColumn.FixedWidth = true;
            this.gridView.Columns["Picture"].Width                    = 180;

            cardView.PopulateColumns(productTable);

            cardView.Columns["CategoryID"].VisibleIndex = -1;

            cardView.Columns["UnitPrice"].DisplayFormat.FormatType   = FormatType.Numeric;
            cardView.Columns["UnitPrice"].DisplayFormat.FormatString = "c2";

            this.gridControl.DragOver += gridControl_DragOver;
            this.gridControl.DragDrop += gridControl_DragDrop;
            cardView.MouseDown        += cardView_MouseDown;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 그리드 컨트롤 DRAG OVER 처리하기 - gridControl_DragOver(sender, e)

        /// <summary>
        /// 그리드 컨트롤 DRAG OVER 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void gridControl_DragOver(object sender, DragEventArgs e)
        {
            GridControl gridControl = sender as GridControl;

            Point point = gridControl.PointToClient(new Point(e.X, e.Y));

            BaseView baseView = gridControl.GetViewAt(point);

            if(baseView is CardView)
            {
                e.Effect = DragDropEffects.Move;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        #endregion
        #region 그리드 컨트롤 DRAG DROP 처리하기 - gridControl_DragDrop(sender, e)

        /// <summary>
        /// 그리드 컨트롤 DRAG DROP 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void gridControl_DragDrop(object sender, DragEventArgs e)
        {
            GridControl gridControl = sender as GridControl;

            Point point = gridControl.PointToClient(new Point(e.X, e.Y));

            CardView cardView = gridControl.GetViewAt(point) as CardView;

            string dragData = e.Data.GetData(DataFormats.Text).ToString();

            int productID = Convert.ToInt32(dragData);

            GridView gridView = cardView.ParentView as GridView;

            object categoryIDObject = gridView.GetRowCellValue
            (
                cardView.SourceRowHandle,
                gridView.Columns["CategoryID"]
            );

            int categoryID = Convert.ToInt32(categoryIDObject);

            DataRow dataRow = this.dataSet.Tables["Products"].Rows.Find(productID);

            if(dataRow != null)
            {
                dataRow.SetField("CategoryID", categoryID);
            }
        }

        #endregion
        #region 카드 뷰 마우스 DOWN 처리하기 - cardView_MouseDown(sender, e)

        /// <summary>
        /// 카드 뷰 마우스 DOWN 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void cardView_MouseDown(object sender, MouseEventArgs e)
        {
            CardView cardView = sender as CardView;
            GridView gridView = cardView.ParentView as GridView;

            CardHitInfo cardHitInfo = cardView.CalcHitInfo(e.Location);

            if(cardHitInfo.HitTest == CardHitTest.CardCaption)
            {
                string productID = cardView.GetRowCellValue
                (
                    cardHitInfo.RowHandle,
                    cardView.Columns["ProductID"]
                ).ToString();

                this.gridControl.DoDragDrop(productID, DragDropEffects.Move);
            }
        }

        #endregion
    }
}

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using System;

using System.Data;

using System.Data.OleDb;

using System.Drawing;

using System.Windows.Forms;

using DevExpress.Utils;

using DevExpress.XtraEditors;

using DevExpress.XtraEditors.Controls;

using DevExpress.XtraEditors.Repository;

using DevExpress.XtraGrid;

using DevExpress.XtraGrid.Views.Base;

using DevExpress.XtraGrid.Views.Card;

using DevExpress.XtraGrid.Views.Card.ViewInfo;

using DevExpress.XtraGrid.Views.Grid;

namespace TestProject

{

/// <summary>

/// 메인 폼

/// </summary>

public partial class MainForm : XtraForm

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

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

#region Field

/// <summary>

/// 데이터 셋

/// </summary>

private DataSet dataSet = null;

#endregion

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

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

#region 생성자 - MainForm()

/// <summary>

/// 생성자

/// </summary>

public MainForm()

{

InitializeComponent();

#region 데이터를 로드한다.

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

OleDbDataAdapter categoryAdapter = new OleDbDataAdapter

(

"SELECT CategoryID, CategoryName, Picture FROM Categories",

connection

);

OleDbDataAdapter productAdapter = new OleDbDataAdapter

(

"SELECT CategoryID, ProductID, ProductName, UnitPrice FROM Products",

connection

);

this.dataSet = new DataSet();

categoryAdapter.Fill(this.dataSet, "Categories");

productAdapter.Fill (this.dataSet, "Products" );

DataTable categoryTable = this.dataSet.Tables["Categories"];

DataTable productTable = this.dataSet.Tables["Products" ];

productTable.PrimaryKey = new DataColumn[] { productTable.Columns["ProductID"] };

DataColumn keyColumn = categoryTable.Columns["CategoryID"];

DataColumn foreignKeyColumn = productTable.Columns ["CategoryID"];

this.dataSet.Relations.Add("CategoriesProducts", keyColumn, foreignKeyColumn);

#endregion

#region 저장소 항목 픽처 에디터를 설정한다.

RepositoryItemPictureEdit repositoryItemPictureEdit = new RepositoryItemPictureEdit();

repositoryItemPictureEdit.SizeMode = PictureSizeMode.Stretch;

#endregion

this.gridControl.RepositoryItems.Add(repositoryItemPictureEdit);

this.gridControl.AllowDrop = true;

CardView cardView = new CardView(this.gridControl);

cardView.ViewCaption = "Category Products";

this.gridControl.LevelTree.Nodes.Add("CategoriesProducts", cardView);

this.gridControl.DataSource = categoryTable;

this.gridView.RowHeight = 50;

this.gridView.Columns["CategoryID"].VisibleIndex = -1;

this.gridView.Columns["Picture"].ColumnEdit = repositoryItemPictureEdit;

this.gridView.Columns["Picture"].OptionsColumn.FixedWidth = true;

this.gridView.Columns["Picture"].Width = 180;

cardView.PopulateColumns(productTable);

cardView.Columns["CategoryID"].VisibleIndex = -1;

cardView.Columns["UnitPrice"].DisplayFormat.FormatType = FormatType.Numeric;

cardView.Columns["UnitPrice"].DisplayFormat.FormatString = "c2";

this.gridControl.DragOver += gridControl_DragOver;

this.gridControl.DragDrop += gridControl_DragDrop;

cardView.MouseDown += cardView_MouseDown;

}

#endregion

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

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

#region 그리드 컨트롤 DRAG OVER 처리하기 - gridControl_DragOver(sender, e)

/// <summary>

/// 그리드 컨트롤 DRAG OVER 처리하기

/// </summary>

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

/// <param name="e">이벤트 인자</param>

private void gridControl_DragOver(object sender, DragEventArgs e)

{

GridControl gridControl = sender as GridControl;

Point point = gridControl.PointToClient(new Point(e.X, e.Y));

BaseView baseView = gridControl.GetViewAt(point);

if(baseView is CardView)

{

e.Effect = DragDropEffects.Move;

}

else

{

e.Effect = DragDropEffects.None;

}

#endregion

#region 그리드 컨트롤 DRAG DROP 처리하기 - gridControl_DragDrop(sender, e)

/// <summary>

/// 그리드 컨트롤 DRAG DROP 처리하기

/// </summary>

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

/// <param name="e">이벤트 인자</param>

private void gridControl_DragDrop(object sender, DragEventArgs e)

{

GridControl gridControl = sender as GridControl;

Point point = gridControl.PointToClient(new Point(e.X, e.Y));

CardView cardView = gridControl.GetViewAt(point) as CardView;

string dragData = e.Data.GetData(DataFormats.Text).ToString();

int productID = Convert.ToInt32(dragData);

GridView gridView = cardView.ParentView as GridView;

object categoryIDObject = gridView.GetRowCellValue

(

cardView.SourceRowHandle,

gridView.Columns["CategoryID"]

);

int categoryID = Convert.ToInt32(categoryIDObject);

DataRow dataRow = this.dataSet.Tables["Products"].Rows.Find(productID);

if(dataRow != null)

{

dataRow.SetField("CategoryID", categoryID);

}

#endregion

#region 카드 뷰 마우스 DOWN 처리하기 - cardView_MouseDown(sender, e)

/// <summary>

/// 카드 뷰 마우스 DOWN 처리하기

/// </summary>

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

/// <param name="e">이벤트 인자</param>

private void cardView_MouseDown(object sender, MouseEventArgs e)

{

CardView cardView = sender as CardView;

GridView gridView = cardView.ParentView as GridView;

CardHitInfo cardHitInfo = cardView.CalcHitInfo(e.Location);

if(cardHitInfo.HitTest == CardHitTest.CardCaption)

{

string productID = cardView.GetRowCellValue

(

cardHitInfo.RowHandle,

cardView.Columns["ProductID"]

).ToString();

this.gridControl.DoDragDrop(productID, DragDropEffects.Move);

}

#endregion

}

TestProject.zip