using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI;
namespace YYControls.Helper
{
/// <summary>
/// SmartGridView的Helper
/// </summary>
public
class SmartGridView
{
/// <summary>
/// 合并指定列的相邻且内容相同的单元格
/// </summary>
/// <param name="gv">GridView</param>
/// <param name="columnIndices">须要合并单元格的列的索引(用逗号“,”分隔)</param>
public
static
void MergeCells(GridView gv,
int[] columnIndices)
{
// 指定的列中须要设置RowSpan的单元格的行索引
int[] aryInt =
new
int[columnIndices.Length];
// 是否从新指定aryInt的相关元素的值
// aryInt中的元素与aryBln中的元素一一对应
bool[] aryBln =
new
bool[columnIndices.Length];
// aryInt初值均为0
for (
int i = 0; i < aryInt.Length; i++)
{
aryInt[i] = 0;
}
// aryBln初值均为true
for (
int i = 0; i < aryBln.Length; i++)
{
aryBln[i] =
true;
}
for (
int i = 1; i < gv.Rows.Count; i++)
{
// 本行和上一行均为DataControlRowType.DataRow
if (gv.Rows[i].RowType == DataControlRowType.DataRow && gv.Rows[i - 1].RowType == DataControlRowType.DataRow)
{
// 遍历指定的列索引
for (
int j = 0; j < columnIndices.Length; j++)
{
// 列索引超出范围则不处理
if (columnIndices[j] < 0 || columnIndices[j] > gv.Columns.Count - 1)
continue;
// 相邻单元格的内容相同
if (gv.Rows[i].Cells[columnIndices[j]].Text == gv.Rows[i - 1].Cells[columnIndices[j]].Text)
{
if (aryBln[j])
aryInt[j] = i - 1;
if (gv.Rows[aryInt[j]].Cells[columnIndices[j]].RowSpan == 0)
gv.Rows[aryInt[j]].Cells[columnIndices[j]].RowSpan = 1;
gv.Rows[aryInt[j]].Cells[columnIndices[j]].RowSpan++;
gv.Rows[i].Cells[columnIndices[j]].Visible =
false;
aryBln[j] =
false;
}
else
{
aryBln[j] =
true;
}
}
}
}
}
}
}