【ASP.NET】 Gridview合并单元格

View Code

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Web;
  5 using System.Web.UI.WebControls;
  6 /// <summary>
  7 ///GridviewProcess 处理Griedview合并
  8 /// </summary>
  9 public class GridviewProcess
 10 {
 11     public GridviewProcess()
 12     {
 13         //
 14         //TODO: 在此处添加构造函数逻辑
 15         //
 16     }
 17     #region 合并单元格 合并某一行的所有列
 18     ///　 <summary>　 
 19     ///　 合并GridView中某行相同信息的行（单元格） 
 20     ///　 </summary>　 
 21     ///　 <param　 name="GridView1">GridView对象</param>　 
 22     ///　 <param　 name="cellNum">需要合并的行</param> 
 23     public static void GroupRow(GridView GridView1, int rows)
 24     {
 25         TableCell oldTc = GridView1.Rows[rows].Cells[0];
 26         for (int i = 1; i < GridView1.Rows[rows].Cells.Count; i++)
 27         {
 28             TableCell tc = GridView1.Rows[rows].Cells[i];　 //Cells[0]就是你要合并的列 
 29             if (oldTc.Text == tc.Text)
 30             {
 31                 tc.Visible = false;
 32                 if (oldTc.ColumnSpan == 0)
 33                 {
 34                     oldTc.ColumnSpan = 1;
 35                 }
 36                 oldTc.ColumnSpan++;
 37                 oldTc.VerticalAlign = VerticalAlign.Middle;
 38             }
 39             else
 40             {
 41                 oldTc = tc;
 42             }
 43         }
 44     }
 45     #endregion
 46     #region 合并单元格 合并一行中的几列
 47     /// <summary> 
 48     /// 合并单元格 合并一行中的几列 
 49     /// </summary> 
 50     /// <param name="GridView1">GridView ID</param> 
 51     /// <param name="rows">行</param> 
 52     /// <param name="sCol">开始列</param> 
 53     /// <param name="eCol">结束列</param> 
 54     public static void GroupRow(GridView GridView1, int rows, int sCol, int eCol)
 55     {
 56         TableCell oldTc = GridView1.Rows[rows].Cells[sCol];
 57         for (int i = 1; i < eCol - sCol; i++)
 58         {
 59             TableCell tc = GridView1.Rows[rows].Cells[i + sCol];　 //Cells[0]就是你要合并的列 
 60             tc.Visible = false;
 61             if (oldTc.ColumnSpan == 0)
 62             {
 63                 oldTc.ColumnSpan = 1;
 64             }
 65             oldTc.ColumnSpan++;
 66             oldTc.VerticalAlign = VerticalAlign.Middle;
 67         }
 68     }
 69     #endregion
 70     #region 合并单元格 合并某一列所有行
 71     /// <summary> 
 72     /// 合并GridView中某列相同信息的行（单元格） 
 73     /// </summary> 
 74     /// <param name="GridView1"></param> 
 75     /// <param name="cellNum"></param> 
 76     public static void GroupCol(GridView GridView1, int cols)
 77     {
 78         if (GridView1.Rows.Count < 1 || cols > GridView1.Rows[0].Cells.Count - 1)
 79         {
 80             return;
 81         }
 82         TableCell oldTc = GridView1.Rows[0].Cells[cols];
 83         for (int i = 1; i < GridView1.Rows.Count; i++)
 84         {
 85             TableCell tc = GridView1.Rows[i].Cells[cols];
 86             if (oldTc.Text == tc.Text)
 87             {
 88                 tc.Visible = false;
 89                 if (oldTc.RowSpan == 0)
 90                 {
 91                     oldTc.RowSpan = 1;
 92                 }
 93                 oldTc.RowSpan++;
 94                 oldTc.VerticalAlign = VerticalAlign.Middle;
 95             }
 96             else
 97             {
 98                 oldTc = tc;
 99             }
100         }
101     }
102     #endregion
103     #region 合并单元格 合并某一列中的某些行
104     /// <summary> 
105     /// 合并单元格 合并某一列中的某些行 
106     /// </summary> 
107     /// <param name="GridView1">GridView ID</param> 
108     /// <param name="cellNum">列</param> 
109     /// <param name="sRow">开始行</param> 
110     /// <param name="eRow">结束列</param> 
111     public static void GroupCol(GridView GridView1, int cols, int sRow, int eRow)
112     {
113         if (GridView1.Rows.Count < 1 || cols > GridView1.Columns.Count - 1)
114         {
115             return;
116         }
117         TableCell oldTc = GridView1.Rows[sRow].Cells[cols];
118         for (int i = 1; i < eRow - sRow; i++)
119         {
120             TableCell tc = GridView1.Rows[sRow + i].Cells[cols];
121             tc.Visible = false;
122             if (oldTc.RowSpan == 0)
123             {
124                 oldTc.RowSpan = 1;
125             }
126             oldTc.RowSpan++;
127             oldTc.VerticalAlign = VerticalAlign.Middle;
128         }
129     }
130     #endregion
131 }

这是专门处理gridview的一个类，可以单独取出对自己有用的代码！

方法事列：

Griedview1.DataSource = dt;

Griedview1.DataBind();

GroupCol(Griedview1, 0);

注：在从列或者行开始的数字是从0开始的！

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原文地址：https://www.cnblogs.com/ruicky/p/2576315.html