帮我看看这两处如何修改

[shanyajun]

private double sum = 0;//商品总数
int psum = 0;//商品数量
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex >= 0)
{
sum = sum + Convert.ToDouble(e.Row.Cells[5].Text);//此字段为价格类型

psum = psum + Convert.ToInt32(e.Row.Cells[3].Text);//此字段为数字型int
}
else if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[0].ColumnSpan = e.Row.Cells.Count;

e.Row.Cells[0].HorizontalAlign = HorizontalAlign.Right;


e.Row.Cells[0].Text = "总价格为：￥" + sum.ToString("0.00") + "     平均价格为：￥" + ((double)(sum / psum)).ToString();

[tkscascor]

??? 是什么问题啊?

[Snowdust]

sum = sum + Convert.ToDouble(e.Row.Cells[5].Text);//此字段为价格类型
psum = psum + Convert.ToInt32(e.Row.Cells[3].Text);//此字段为数字型int
改成：
sum = sum + Convert.ToDouble(e.Row.Cells[5].Text) * Convert.ToInt32(e.Row.Cells[3].Text);//此字段为价格类型
psum = psum + Convert.ToInt32(e.Row.Cells[3].Text);//此字段为数字型int