第一种方案
｜－－－｜－－－｜－－－｜－－－｜－－－｜
｜ Ａ ｜ Ｂ ｜ Ｃ ｜１００｜１５０｜
｜－－－｜－－－｜－－－｜－－－｜－－－｜
｜ Ａ ｜ Ｂ ｜ Ｄ ｜２００｜２５０｜
｜－－－｜－－－｜－－－｜－－－｜－－－｜
｜ Ａ ｜ Ｅ ｜ Ｃ ｜１００｜１５０｜
｜－－－｜－－－｜－－－｜－－－｜－－－｜
｜ Ａ ｜ Ｅ ｜ Ｄ ｜１２０｜２５０｜
｜－－－｜－－－｜－－－｜－－－｜－－－｜
通过代码处理希望得到的表
｜－－－｜－－－｜－－－｜－－－｜－－－｜
｜ ｜ Ｂ ｜ Ｃ ｜１００｜１５０｜
｜ ｜ ｜－－－｜－－－｜－－－｜
｜ ｜ ｜ Ｄ ｜２００｜２５０｜
｜ ｜－－－｜－－－｜－－－｜－－－｜
｜ Ａ ｜ ｜ Ｃ ｜１００｜１５０｜
｜ ｜ ｜－－－｜－－－｜－－－｜
｜ ｜ Ｅ ｜ Ｄ ｜１２０｜２５０｜
｜－－－｜－－－｜－－－｜－－－｜－－－｜
public class GridDecorator
{
public static void MergeRows(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;
}
}
}
}
}
在 PreRender 预呈现的事件中 做操作
protected void gridView_PreRender(object sender, EventArgs e)
{
GridDecorator.MergeRows(gridView);
}
第二种方案
#region 合并单元格 合并某一行的所有列
/// <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 GridView1, int rows)
{
TableCell oldTc = GridView1.Rows[rows].Cells[0];
for (int i = 1; i < GridView1.Rows[rows].Cells.Count; i++)
{
TableCell tc = GridView1.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 GridView1, int rows,int sCol,int eCol)
{
TableCell oldTc = GridView1.Rows[rows].Cells[sCol];
for (int i = 1; i < eCol - sCol; i++)
{
TableCell tc = GridView1.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 GridView1, int cols)
{
if (GridView1.Rows.Count < 1 || cols > GridView1.Rows[0].Cells.Count - 1)
{
return;
}
TableCell oldTc = GridView1.Rows[0].Cells[cols];
for (int i = 1; i < GridView1.Rows.Count; i++)
{
TableCell tc = GridView1.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 GridView1, int cols,int sRow,int eRow)
{
if (GridView1.Rows.Count < 1 || cols > GridView1.Columns.Count - 1)
{
return;
}
TableCell oldTc = GridView1.Rows[sRow].Cells[cols];
for (int i = 1; i < eRow - sRow; i++)
{
TableCell tc = GridView1.Rows[sRow + i].Cells[cols];
tc.Visible = false;
if (oldTc.RowSpan == 0)
{
oldTc.RowSpan = 1;
}
oldTc.RowSpan++;
oldTc.VerticalAlign = VerticalAlign.Middle;
}
}
#endregion