int sum = 0;
for (int i = 0; i < GridView1.Rows.Count; i++)
{
sum += Convert.ToInt32(GridView1.Rows[i].Cells[3].Text.Trim());
}
Label1.Text = sum.ToString();
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GridView控件求第四列的和显示在label1中 ,结果一直是0为什么,急求大神相助
int sum = 0; for (int i = 0; i < GridView1.Rows.Count; i++) { sum += Convert.ToInt32(GridView1.Rows[i].Cells[3].Text.Trim()); } Label1.Text = sum.ToString();