20220315 代码初始化上传

SGGL/FineUIPro.Web/Controls/MultiHeaderTable.cs

@@ -0,0 +1,144 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+
+namespace FineUIPro.Web.Controls
+{
+    public class MultiHeaderTable
+    {// 包含 rowspan，colspan 的多表头，方便生成 HTML 的 table 标签
+        public List<List<object[]>> MultiTable = new List<List<object[]>>();
+        // 最终渲染的列数组
+        public List<GridColumn> Columns = new List<GridColumn>();
+
+
+        public void ResolveMultiHeaderTable(GridColumnCollection columns)
+        {
+            List<object[]> row = new List<object[]>();
+            foreach (GridColumn column in columns)
+            {
+                object[] cell = new object[4];
+                cell[0] = 1;    // rowspan
+                cell[1] = 1;    // colspan
+                cell[2] = column;
+                cell[3] = null;
+
+                row.Add(cell);
+            }
+
+            ResolveMultiTable(row, 0);
+
+            ResolveColumns(row);
+        }
+
+        private void ResolveColumns(List<object[]> row)
+        {
+            foreach (object[] cell in row)
+            {
+                GroupField groupField = cell[2] as GroupField;
+                if (groupField != null && groupField.Columns.Count > 0)
+                {
+                    List<object[]> subrow = new List<object[]>();
+                    foreach (GridColumn column in groupField.Columns)
+                    {
+                        subrow.Add(new object[]
+                        {
+                        1,
+                        1,
+                        column,
+                        groupField
+                        });
+                    }
+
+                    ResolveColumns(subrow);
+                }
+                else
+                {
+                    Columns.Add(cell[2] as GridColumn);
+                }
+            }
+
+        }
+
+        private void ResolveMultiTable(List<object[]> row, int level)
+        {
+            List<object[]> nextrow = new List<object[]>();
+
+            foreach (object[] cell in row)
+            {
+                GroupField groupField = cell[2] as GroupField;
+                if (groupField != null && groupField.Columns.Count > 0)
+                {
+                    // 如果当前列包含子列，则更改当前列的 colspan，以及增加父列（向上递归）的colspan
+                    cell[1] = Convert.ToInt32(groupField.Columns.Count);
+                    PlusColspan(level - 1, cell[3] as GridColumn, groupField.Columns.Count - 1);
+
+                    foreach (GridColumn column in groupField.Columns)
+                    {
+                        nextrow.Add(new object[]
+                        {
+                        1,
+                        1,
+                        column,
+                        groupField
+                        });
+                    }
+                }
+            }
+
+            MultiTable.Add(row);
+
+            // 如果当前下一行，则增加上一行（向上递归）中没有子列的列的 rowspan
+            if (nextrow.Count > 0)
+            {
+                PlusRowspan(level);
+
+                ResolveMultiTable(nextrow, level + 1);
+            }
+        }
+
+        private void PlusRowspan(int level)
+        {
+            if (level < 0)
+            {
+                return;
+            }
+
+            foreach (object[] cells in MultiTable[level])
+            {
+                GroupField groupField = cells[2] as GroupField;
+                if (groupField != null && groupField.Columns.Count > 0)
+                {
+                    // ...
+                }
+                else
+                {
+                    cells[0] = Convert.ToInt32(cells[0]) + 1;
+                }
+            }
+
+            PlusRowspan(level - 1);
+        }
+
+        private void PlusColspan(int level, GridColumn parent, int plusCount)
+        {
+            if (level < 0)
+            {
+                return;
+            }
+
+            foreach (object[] cells in MultiTable[level])
+            {
+                GridColumn column = cells[2] as GridColumn;
+                if (column == parent)
+                {
+                    cells[1] = Convert.ToInt32(cells[1]) + plusCount;
+
+                    PlusColspan(level - 1, cells[3] as GridColumn, plusCount);
+                }
+            }
+        }
+
+
+    }
+}