SVN r401

SVN-Revision: r401

插件库/Lskj.Control/GridControlEx.cs

@@ -412,6 +412,94 @@ namespace Lskj.Control
             this.gridView.DoubleClick += OnShowImageDoubleClick; ;
             #endregion
         }
+        /// <summary>
+        /// 保存前反写多表头数据源
+        /// </summary>
+        public void callbackUpdData()
+        {
+            try
+            {
+                // 获取动态多表头的Grid控件数据源 (假设为DataTable)
+                DataTable updatedTable = CustomGroupBandEx.gridControl.DataSource as DataTable;
+                if (updatedTable == null) return;
+
+                // 获取原始的GridControl的数据源
+                DataTable originalDataTable = this.gridControl.DataSource as DataTable;
+                if (originalDataTable == null) return;
+
+                // 获取分组相关的列定义
+                GridColumnModel GroupPrimary = ColumnList.FirstOrDefault(o => o.IsCustomGroupPrimary);
+                GridColumnModel GroupFieldprimary = ColumnList.FirstOrDefault(o => o.IsCustomGroupField == 1);
+                List<GridColumnModel> GroupField = ColumnList.Where(o => o.IsCustomGroupField == 2).ToList();
+
+                if (GroupPrimary == null || GroupFieldprimary == null || !GroupField.Any()) return;
+
+                // 遍历每一行更新回原始数据表
+                foreach (DataRow updatedRow in updatedTable.Rows)
+                {
+                    string primaryKeyValue = updatedRow[GroupPrimary.FieldName]?.ToString();
+
+                    // 根据主键定位原始表中的行集合
+                    var originalRows = originalDataTable.AsEnumerable()
+                        .Where(row => row.Field<string>(GroupPrimary.FieldName) == primaryKeyValue).ToList();
+
+                    if (!originalRows.Any()) continue; // 若没有匹配的行，跳过
+
+                    // 遍历动态表头的Band及子列
+                    foreach (GridBand band in CustomGroupBandEx.BandedView.Bands)
+                    {
+                        if (band.Caption == "基本信息") continue; // 跳过普通列Band
+
+                        string groupFieldPrimaryValue = band.Caption;
+
+                        foreach (BandedGridColumn column in band.Columns)
+                        {
+                            var subField = column.Tag as GridColumnModel;
+                            if (subField == null) continue;
+
+                            string dynamicFieldName = column.FieldName;
+                            object updatedValue = updatedRow[dynamicFieldName];
+
+                            // 精确匹配原数据源对应的单行
+                            DataRow targetRow = originalRows.FirstOrDefault(r =>
+                                r.Field<string>(GroupFieldprimary.FieldName) == groupFieldPrimaryValue);
+
+                            // 若找到行，则更新该行对应的字段
+                            if (targetRow != null && originalDataTable.Columns.Contains(subField.FieldName))
+                            {
+                                targetRow[subField.FieldName] = updatedValue;
+                            }
+                            else if (targetRow == null)
+                            {
+                                // 若没找到，说明可能为新增数据行，插入新行（若业务需要）
+                                DataRow newOriginalRow = originalDataTable.NewRow();
+                                newOriginalRow[GroupPrimary.FieldName] = primaryKeyValue;
+                                newOriginalRow[GroupFieldprimary.FieldName] = groupFieldPrimaryValue;
+
+                                foreach (var col in ColumnList.Where(x => !x.IsCustomGroupField.Equals(1) && !x.IsCustomGroupPrimary))
+                                {
+                                    if (updatedTable.Columns.Contains(col.FieldName) && originalDataTable.Columns.Contains(col.FieldName))
+                                    {
+                                        newOriginalRow[col.FieldName] = updatedRow[col.FieldName];
+                                    }
+                                }
+
+                                if (originalDataTable.Columns.Contains(subField.FieldName))
+                                {
+                                    newOriginalRow[subField.FieldName] = updatedValue;
+                                }
+
+                                originalDataTable.Rows.Add(newOriginalRow);
+                            }
+                        }
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show("保存失败：" + ex.Message);
+            }
+        }
 
         /// <summary>
         /// <para>说明：单元格合并</para>
@@ -6554,7 +6642,200 @@ namespace Lskj.Control
                     }
                 }
             }
+            // 调用动态构建方法
+            if (CustomGroupBandEx != null)
+            {
+                DataTable currentDataSource = gridView.GridControl.DataSource as DataTable;
+                if (currentDataSource != null)
+                {
+                    BuildDynamicGroupedColumns(CustomGroupBandEx, currentDataSource);
+                }
+            }
         }
+        /// <summary>
+        /// 构建多表头格式
+        /// </summary>
+        /// <param name="bandedGridControlEx"></param>
+        /// <param name="originalDataSource"></param>
+        private void BuildDynamicGroupedColumns(BandedGridControlEx bandedGridControlEx, DataTable originalDataSource)
+        {
+            // 数据源改变时必须重复执行此逻辑
+            bandedGridControlEx.BandedView.OptionsView.ColumnAutoWidth = false;
+
+            // 获取你的定义的主键、分组列、聚合数据列
+            GridColumnModel GroupPrimary = ColumnList.FirstOrDefault(o => o.IsCustomGroupPrimary);
+            GridColumnModel GroupFieldprimary = ColumnList.FirstOrDefault(o => o.IsCustomGroupField == 1);
+            List<GridColumnModel> GroupField = ColumnList.Where(o => o.IsCustomGroupField == 2).ToList();
+
+            if (GroupPrimary == null || GroupFieldprimary == null || !GroupField.Any())
+                return; // 数据不足直接退出
+
+            // 清理现有结构
+            bandedGridControlEx.BandedView.Bands.Clear();
+            bandedGridControlEx.BandedView.Columns.Clear();
+
+            // 保留其他非聚合列
+            List<GridColumnModel> normalColumns = ColumnList.Where(o => !o.IsCustomGroupPrimary && o.IsCustomGroupField == 0).ToList();
+
+            // 创建正常列的Band
+            GridBand normalBand = new GridBand() { Caption = "基本信息" };
+            bandedGridControlEx.BandedView.Bands.Add(normalBand);
+
+            // 添加正常列到Band中
+            foreach (var normalCol in normalColumns)
+            {
+                if (originalDataSource.Columns.Contains(normalCol.FieldName))
+                {
+                    BandedGridColumn col = new BandedGridColumn()
+                    {
+                        FieldName = normalCol.FieldName,
+                        Caption = normalCol.FieldText,
+                        Width = normalCol.Width,
+                        Visible = true,
+                        Tag = normalCol,
+                        MinWidth = normalCol.Width,
+                        MaxWidth = normalCol.Width,
+                        OptionsColumn = { FixedWidth = true } // <-- 明确设置此属性
+                    };
+
+                    normalBand.Columns.Add(col);
+                    bandedGridControlEx.BandedView.Columns.Add(col);
+                }
+            }
+
+            // 动态获取需要聚合的列
+            var dynamicHeaders = originalDataSource.AsEnumerable()
+                .Select(r => r.Field<string>(GroupFieldprimary.FieldName))
+                .Distinct().Where(x => !string.IsNullOrEmpty(x)).ToList();
+
+            // 为每个动态表头生成GridBand，并添加子列
+            foreach (string headerName in dynamicHeaders)
+            {
+                GridBand dynamicBand = new GridBand() { Caption = headerName };
+                bandedGridControlEx.BandedView.Bands.Add(dynamicBand);
+
+                foreach (var subField in GroupField)
+                {
+                    string dynamicFieldName = $"{headerName}_{subField.FieldName}";
+
+                    BandedGridColumn subColumn = new BandedGridColumn()
+                    {
+                        FieldName = dynamicFieldName,
+                        Caption = subField.FieldText,
+                        Visible = true,
+                        Tag = subField,
+                        Width = subField.Width, // 如果有特定宽度也可以赋值，若无则忽略
+                        OptionsColumn = { FixedWidth = true } // <-- 明确设置固定宽度
+                    };
+
+                    dynamicBand.Columns.Add(subColumn);
+                    bandedGridControlEx.BandedView.Columns.Add(subColumn);
+                }
+            }
+
+            // 构建最终动态数据源
+            DataTable dynamicDataTable = BuildDynamicDataSource(originalDataSource, GroupPrimary, GroupFieldprimary, GroupField, normalColumns, dynamicHeaders);
+            bandedGridControlEx.gridControl.DataSource = dynamicDataTable;
+
+            // 最后再强制刷新布局
+            bandedGridControlEx.BandedView.LayoutChanged();
+        }
+
+        /// <summary>
+        /// 构建数据源
+        /// </summary>
+        /// <param name="originalDataSource"></param>
+        /// <param name="GroupPrimary"></param>
+        /// <param name="GroupFieldprimary"></param>
+        /// <param name="GroupField"></param>
+        /// <param name="normalColumns"></param>
+        /// <param name="dynamicHeaders"></param>
+        /// <returns></returns>
+        private DataTable BuildDynamicDataSource(DataTable originalDataSource,
+                                           GridColumnModel GroupPrimary,
+                                           GridColumnModel GroupFieldprimary,
+                                           List<GridColumnModel> GroupField,
+                                           List<GridColumnModel> normalColumns,
+                                           List<string> dynamicHeaders)
+        {
+            try
+            {
+                DataTable dtResult = new DataTable();
+
+                // 添加主键列
+                if (!dtResult.Columns.Contains(GroupPrimary.FieldName))
+                    dtResult.Columns.Add(GroupPrimary.FieldName, typeof(string));
+
+                // 添加普通列，仅当原数据源存在时才添加
+                foreach (var col in normalColumns)
+                {
+                    if (originalDataSource.Columns.Contains(col.FieldName))
+                        dtResult.Columns.Add(col.FieldName, typeof(string));
+                }
+
+                // 添加动态列 (改为string类型避免异常)
+                foreach (string header in dynamicHeaders)
+                {
+                    foreach (var subField in GroupField)
+                    {
+                        string dynamicFieldName = $"{header}_{subField.FieldName}";
+                        if (!dtResult.Columns.Contains(dynamicFieldName))
+                            dtResult.Columns.Add(dynamicFieldName, typeof(string)); // <-- 此处已修改为string
+                    }
+                }
+
+                // 根据主键聚合数据
+                var groupedData = originalDataSource.AsEnumerable()
+                    .GroupBy(row => row.Field<string>(GroupPrimary.FieldName));
+
+                foreach (var group in groupedData)
+                {
+                    DataRow newRow = dtResult.NewRow();
+
+                    // 主键列赋值
+                    DataRow firstRow = group.First();
+                    newRow[GroupPrimary.FieldName] = firstRow[GroupPrimary.FieldName];
+
+                    // 普通列赋值（需判断原数据源中存在）
+                    foreach (var col in normalColumns)
+                    {
+                        if (originalDataSource.Columns.Contains(col.FieldName))
+                            newRow[col.FieldName] = firstRow[col.FieldName];
+                    }
+
+                    // 动态聚合列赋值
+                    foreach (var header in dynamicHeaders)
+                    {
+                        var matchedRow = group.FirstOrDefault(r => r.Field<string>(GroupFieldprimary.FieldName) == header);
+                        foreach (var subField in GroupField)
+                        {
+                            string dynamicFieldName = $"{header}_{subField.FieldName}";
+
+                            object value = DBNull.Value;
+
+                            if (matchedRow != null && originalDataSource.Columns.Contains(subField.FieldName))
+                            {
+                                value = matchedRow[subField.FieldName]?.ToString(); // 明确转换为string，避免类型错误
+                            }
+
+                            newRow[dynamicFieldName] = value;
+                        }
+                    }
+
+                    dtResult.Rows.Add(newRow);
+                }
+
+                return dtResult;
+            }
+            catch (Exception ex)
+            {
+                // 最好将异常记录下来
+                Console.WriteLine(ex.Message);
+                return null;
+            }
+        }
+
+
         #endregion
 
         #region 绑定表格树结构弹出框