■ GridView 클래스의 CustomSummaryCalculate 이벤트를 사용해 SUMMARY 커스텀 계산하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Collections.Generic; using System.Data; using DevExpress.Data; using DevExpress.XtraEditors; using DevExpress.XtraGrid.Columns; using DevExpress.XtraGrid; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : XtraForm { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 통화 컬럼 /// </summary> private GridColumn sourceCurrencyColumn = null; /// <summary> /// 값 컬럼 배열 /// </summary> private GridColumn[] sourceValueColumnArray = null; /// <summary> /// 통화 정렬 리스트 /// </summary> private SortedList<string, string> currencySortedList = new SortedList<string, string>(); /// <summary> /// 필드 요약 정렬 리스트 /// </summary> /// <remarks> /// SortedList(필드명, SortedList(통화코드, 요약 값)) /// </remarks> private SortedList<string, SortedList<string, decimal>> fieldSummarySortedList = new SortedList<string, SortedList<string, decimal>>(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.gridView.OptionsView.ShowFooter = true; this.gridView.OptionsView.ShowGroupPanel = false; this.gridView.OptionsView.ShowIndicator = false; this.gridView.OptionsView.ColumnAutoWidth = false; } #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) { DataTable sampleTable = GetSampleList(); //////////////////////////////////////////////////////////////////////////////////////////////////// this.gridView.CustomSummaryCalculate += gridView_CustomSummaryCalculate; // 통화 컬럼을 설정한다. this.sourceCurrencyColumn = this.currencyColumn; // 값 컬럼 목록을 설정한다. this.sourceValueColumnArray = new GridColumn[] { this.amountColumn1 , this.amountColumn2 }; // 통화 목록을 설정한다. this.currencySortedList = GetCurrencySortedList(sampleTable); // 통화 컬럼과 값 컬럼 목록의 SUMMARY 항목 목록을 지운다. ClearSummaryItems(); // 통화 컬럼과 값 컬럼 목록에 SUMMARY 항목을 추가한다. AddSummaryItems(); //////////////////////////////////////////////////////////////////////////////////////////////////// this.gridControl.DataSource = sampleTable; this.gridView.BestFitColumns(); } #endregion #region 그리드 뷰 커스텀 SUMMARY 계산시 처리하기 - gridView_CustomSummaryCalculate(sender, e) /// <summary> /// 그리드 뷰 커스텀 SUMMARY 계산시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_CustomSummaryCalculate(object sender, CustomSummaryEventArgs e) { if(e.SummaryProcess == CustomSummaryProcess.Start) { if(this.fieldSummarySortedList == null) { this.fieldSummarySortedList = new SortedList<string, SortedList<string, decimal>>(); } else { for(int i = 0; i < this.fieldSummarySortedList.Keys.Count; i++) { SortedList<string, decimal> slCurrencySummary = this.fieldSummarySortedList[this.fieldSummarySortedList.Keys[i]]; slCurrencySummary.Clear(); } this.fieldSummarySortedList.Clear(); } for(int i = 0; i < sourceValueColumnArray.Length; i++) { SortedList<string, decimal> slCurrencySummary = new SortedList<string, decimal>(); for(int j = 0; j < this.currencySortedList.Keys.Count; j++) { string currency = this.currencySortedList.Keys[j]; slCurrencySummary.Add(currency, 0m); } this.fieldSummarySortedList.Add(sourceValueColumnArray[i].FieldName, slCurrencySummary); } } if(e.SummaryProcess == CustomSummaryProcess.Calculate) { if(e.FieldValue != null && e.FieldValue != DBNull.Value) { DataRow row = this.gridView.GetDataRow(e.RowHandle); string currency; if(row[sourceCurrencyColumn.FieldName] == DBNull.Value || row[sourceCurrencyColumn.FieldName] == null) { currency = string.Empty; } else { currency = row[sourceCurrencyColumn.FieldName] as string; } for(int i = 0; i < sourceValueColumnArray.Length; i++) { decimal value; if(row[sourceValueColumnArray[i].FieldName] == DBNull.Value || row[sourceValueColumnArray[i].FieldName] == null) { value = 0m; } else { value = (decimal)row[sourceValueColumnArray[i].FieldName]; } SortedList<string, decimal> currencySummarySortedList = this.fieldSummarySortedList[sourceValueColumnArray[i].FieldName]; if(currencySummarySortedList.ContainsKey(currency)) { currencySummarySortedList[currency] += value; } } } } string tag = (e.Item as GridSummaryItem).Tag as string; if(e.SummaryProcess == CustomSummaryProcess.Finalize) { if(string.IsNullOrEmpty(tag)) { return; } string[] tagValueArray = tag.Split('_'); string fieldName = tagValueArray[0]; string currency = tagValueArray[1]; SortedList<string, decimal> currencySummarySortedList = this.fieldSummarySortedList[fieldName]; if(currencySummarySortedList.ContainsKey(currency)) { e.TotalValue = currencySummarySortedList[currency]; } } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 샘플 리스트 구하기 - GetSampleList() /// <summary> /// 샘플 리스트 구하기 /// </summary> /// <returns>샘플 리스트</returns> private DataTable GetSampleList() { DataTable table = new DataTable(); table.Columns.Add("Currency", typeof(string )); table.Columns.Add("Amount1" , typeof(decimal)); table.Columns.Add("Amount2" , typeof(decimal)); DataRow row = null; row = table.NewRow(); row["Currency"] = "KRW"; row["Amount1" ] = 10000m; row["Amount2" ] = 13000m; table.Rows.Add(row); row = table.NewRow(); row["Currency"] = "USD"; row["Amount1" ] = 2000m; row["Amount2" ] = 12000m; table.Rows.Add(row); row = table.NewRow(); row["Currency"] = "KRW"; row["Amount1" ] = 13000m; row["Amount2" ] = 8000m; table.Rows.Add(row); row = table.NewRow(); row["Currency"] = "KRW"; row["Amount1" ] = 8000m; row["Amount2" ] = 4000m; table.Rows.Add(row); row = table.NewRow(); row["Currency"] = "USD"; row["Amount1" ] = 5000m; row["Amount2" ] = 4000m; table.Rows.Add(row); row = table.NewRow(); row["Currency"] = "JPN"; row["Amount1" ] = 15000m; row["Amount2" ] = 11000m; table.Rows.Add(row); return table; } #endregion #region 통화 정렬 리스트 구하기 - GetCurrencySortedList(sourceTable) /// <summary> /// 통화 정렬 리스트 구하기 /// </summary> /// <param name="sourceTable">소스 테이블</param> /// <returns>통화 정렬 리스트</returns> private SortedList<string, string> GetCurrencySortedList(DataTable sourceTable) { SortedList<string, string> currencySortedList = new SortedList<string, string>(); if(sourceTable == null || sourceTable.Rows.Count == 0) { return currencySortedList; } foreach(DataRow sourceRow in sourceTable.Rows) { string currency; if(sourceRow[sourceCurrencyColumn.FieldName] == DBNull.Value || sourceRow[sourceCurrencyColumn.FieldName] == null) { currency = string.Empty; } else { currency = sourceRow[sourceCurrencyColumn.FieldName] as string; } if(!currencySortedList.ContainsKey(currency)) { currencySortedList.Add(currency, currency); } } return currencySortedList; } #endregion #region SUMMARY 항목들 지우기 - ClearSummaryItems() /// <summary> /// SUMMARY 항목들 지우기 /// </summary> private void ClearSummaryItems() { // 통화 컬럼의 SUMMARY 항목 목록을 지운다. for(int i = this.sourceCurrencyColumn.Summary.Count - 1; i > -1; i--) { if(this.sourceCurrencyColumn.Summary[i].SummaryType == SummaryItemType.Custom) { this.sourceCurrencyColumn.Summary.RemoveAt(i); } } // 값 컬럼 목록의 SUMMARY 항목 목록을 지운다. for(int i = 0; i < this.sourceValueColumnArray.Length; i++) { for(int j = this.sourceValueColumnArray[i].Summary.Count - 1; j > -1; j--) { if(this.sourceValueColumnArray[i].Summary[j].SummaryType == SummaryItemType.Custom) { this.sourceValueColumnArray[i].Summary.RemoveAt(j); } } } } #endregion #region SUMMARY 항목들 추가하기 - AddSummaryItems() /// <summary> /// SUMMARY 항목들 추가하기 /// </summary> private void AddSummaryItems() { GridColumnSummaryItem gridColumnSummaryItem = null; for(int i = 0; i < this.currencySortedList.Keys.Count; i++) { string currency = this.currencySortedList.Keys[i]; gridColumnSummaryItem = new GridColumnSummaryItem(); gridColumnSummaryItem.DisplayFormat = currency; gridColumnSummaryItem.FieldName = sourceCurrencyColumn.FieldName; gridColumnSummaryItem.SummaryType = SummaryItemType.Count; sourceCurrencyColumn.Summary.Add(gridColumnSummaryItem); for(int j = 0; j < sourceValueColumnArray.Length; j++) { GridColumn valueColumn = sourceValueColumnArray[j]; gridColumnSummaryItem = new GridColumnSummaryItem(); gridColumnSummaryItem.DisplayFormat = "{0:N2}"; gridColumnSummaryItem.FieldName = valueColumn.FieldName; gridColumnSummaryItem.SummaryType = SummaryItemType.Custom; gridColumnSummaryItem.Tag = valueColumn.FieldName + "_" + currency; valueColumn.Summary.Add(gridColumnSummaryItem); } } } #endregion } } |
