GridView 合并列、行类代码,Asp.NET代码库,德仔网

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【Asp.NET】 GridView 合并列、行类
作者:亦菲 / 发布于2016/9/13/ 405
using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Web;  
using System.Data;  
using System.Web.UI.WebControls;  
  
/// <summary>  
///GridViewMergeCell 合并GridView liyang 20090916  
/// </summary>  
public class GridViewMergeCell  
{  
    public GridViewMergeCell()  
    {  
        //  
        //TODO: 在此处添加构造函数逻辑  
        //  
    }  
    #region 合并单元格 合并某一行的所有列  
    public static void GroupRow(GridView gridView)  
    {  
        for (int rowIndex = gridView.Rows.Count - 2; rowIndex >= 0; rowIndex--)  
        {  
            GridViewRow row = gridView.Rows[rowIndex];  
            GridViewRow previousRow = gridView.Rows[rowIndex + 1];  
  
            for (int i = 0; i < row.Cells.Count; i++)  
            {  
                if (row.Cells[i].Text == previousRow.Cells[i].Text)  
                {  
                    row.Cells[i].RowSpan = previousRow.Cells[i].RowSpan < 2 ? 2 :  
                                           previousRow.Cells[i].RowSpan + 1;  
                    previousRow.Cells[i].Visible = false;  
                }  
            }  
        }  
    }  
    ///　 <summary>　  
    ///　 合并GridView中某行相同信息的行（单元格）  
    ///　 </summary>　  
    ///　 <param　 name="GridView1">GridView对象</param>　  
    ///　 <param　 name="cellNum">需要合并的行</param>  
    public static void GroupRow(GridView gridView, int rows)  
    {  
        TableCell oldTc = gridView.Rows[rows].Cells[0];  
        for (int i = 1; i < gridView.Rows[rows].Cells.Count; i++)  
        {  
            TableCell tc = gridView.Rows[rows].Cells[i];　 //Cells[0]就是你要合并的列  
            if (oldTc.Text == tc.Text)  
            {  
                tc.Visible = false;  
                if (oldTc.ColumnSpan == 0)  
                {  
                    oldTc.ColumnSpan = 1;  
                }  
                oldTc.ColumnSpan++;  
                oldTc.VerticalAlign = VerticalAlign.Middle;  
            }  
            else  
            {  
                oldTc = tc;  
            }  
        }  
    }  
    #endregion  
    #region 合并单元格 合并一行中的几列  
    /// <summary>  
    /// 合并单元格 合并一行中的几列  
    /// </summary>  
    /// <param name="GridView1">GridView ID</param>  
    /// <param name="rows">行</param>  
    /// <param name="sCol">开始列</param>  
    /// <param name="eCol">结束列</param>  
    public static void GroupRow(GridView gridView, int rows, int sCol, int eCol)  
    {  
        TableCell oldTc = gridView.Rows[rows].Cells[sCol];  
        for (int i = 1; i < eCol - sCol; i++)  
        {  
            TableCell tc = gridView.Rows[rows].Cells[i + sCol];　 //Cells[0]就是你要合并的列  
            tc.Visible = false;  
            if (oldTc.ColumnSpan == 0)  
            {  
                oldTc.ColumnSpan = 1;  
            }  
            oldTc.ColumnSpan++;  
            oldTc.VerticalAlign = VerticalAlign.Middle;  
        }  
    }  
    #endregion  
    #region 合并单元格 合并某一列所有行  
    /// <summary>  
    /// 合并GridView中某列相同信息的行（单元格）  
    /// </summary>  
    /// <param name="GridView1"></param>  
    /// <param name="cellNum"></param>  
    public static void GroupCol(GridView gridView, int cols)  
    {  
        if (gridView.Rows.Count < 1 || cols > gridView.Rows[0].Cells.Count - 1)  
        {  
            return;  
        }  
        TableCell oldTc = gridView.Rows[0].Cells[cols];  
        for (int i = 1; i < gridView.Rows.Count; i++)  
        {  
            TableCell tc = gridView.Rows[i].Cells[cols];  
            if (oldTc.Text == tc.Text)  
            {  
                tc.Visible = false;  
                if (oldTc.RowSpan == 0)  
                {  
                    oldTc.RowSpan = 1;  
                }  
                oldTc.RowSpan++;  
                oldTc.VerticalAlign = VerticalAlign.Middle;  
            }  
            else  
            {  
                oldTc = tc;  
            }  
        }  
    }  
    #endregion  
    #region 合并单元格 合并某一列中的某些行  
    /// <summary>  
    /// 合并单元格 合并某一列中的某些行  
    /// </summary>  
    /// <param name="GridView1">GridView ID</param>  
    /// <param name="cellNum">列</param>  
    /// <param name="sRow">开始行</param>  
    /// <param name="eRow">结束列</param>  
    public static void GroupCol(GridView gridView, int cols, int sRow, int eRow)  
    {  
        if (gridView.Rows.Count < 1 || cols > gridView.Columns.Count - 1)  
        {  
            return;  
        }  
        TableCell oldTc = gridView.Rows[sRow].Cells[cols];  
        for (int i = 1; i < eRow - sRow; i++)  
        {  
            TableCell tc = gridView.Rows[sRow + i].Cells[cols];  
            tc.Visible = false;  
            if (oldTc.RowSpan == 0)  
            {  
                oldTc.RowSpan = 1;  
            }  
            oldTc.RowSpan++;  
            oldTc.VerticalAlign = VerticalAlign.Middle;  
        }  
    }  
    #endregion  
}
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