GridView添加统计(合计)行

前提：设置属性ShowFooter="True"方法一：使用SQL查询统计出合计值，在绑定GridView时让其结果赋于一个DataTable(全局变量)，然后在RowDataBound事件中

程序代码:

if (e.Row.RowType == DataControlRowType.Footer)

{

e.Row.Cells[0].Text = "合计";

e.Row.Cells[3].Text = dtSum.Rows[0][0].ToString();

e.Row.Cells[4].Text = dtSum.Rows[0][1].ToString();

e.Row.Cells[5].Text = dtSum.Rows[0][2].ToString();

e.Row.Cells[6].Text = dtSum.Rows[0][3].ToString();

e.Row.Cells[7].Text = dtSum.Rows[0][4].ToString();

e.Row.Cells[8].Text = dtSum.Rows[0][5].ToString();

e.Row.Cells[9].Text = dtSum.Rows[0][6].ToString();

e.Row.Cells[10].Text = dtSum.Rows[0][7].ToString();

e.Row.Cells[11].Text = dtSum.Rows[0][8].ToString();

}

其中dtSum是那个全局DataTable，在绑定GridView同时将SQL查询的结果赋给它；效果如下：



方法二、直接把对应列每一行的值相加(不做数据查询，在RowDataBound事件中运算)

int mysum1 = 0; 

int mysum2 = 0;

protected void GridList_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.DataRow )

{

DataRowView myrows=(DataRowView)e.Row.DataItem;

mysum1 +=Convert .ToInt32 (myrows[2].ToString ());

mysum2 += Convert.ToInt32(myrows[3].ToString());

}

// 合计

if (e.Row.RowType == DataControlRowType.Footer)

{

e.Row.Cells[0].Text = "合计";

e.Row.Cells[1].Text = mysum1.ToString();

e.Row.Cells[2].Text = mysum2.ToString();

}

}