GridView中某一列值的总和（web）
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex >= 0)
{
sum += Convert.ToDouble(e.Row.Cells[7].Text);
}
else if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[5].Text = "总薪水:";
e.Row.Cells[6].Text = sum.ToString();
e.Row.Cells[3].Text = "平均薪水:";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
}
foreach (TableCell tc in e.Row.Cells)
{
tc.Attributes["style"] = "border-color:Black";
}
if (e.Row.RowIndex != -1)
{
int id = GridView1.PageIndex * GridView1.PageSize + e.Row.RowIndex + 1;
e.Row.Cells[0].Text = id.ToString();
}
}
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