DataGridView的问题 [英] A problem with DataGridView

问题描述

int qty = 0;
int amount = 0;
int rowtotal = 0;
int subtotal = 0;
int total = 0;

foreach (DataGridViewRow row in itemgridview.Rows)
{
    qty = Convert.ToInt32(row.Cells[1].Value);
    amount = Convert.ToInt32(row.Cells[2].Value);
    rowtotal = qty * amount;
    row.Cells[3].Value = rowtotal;
    subtotal += rowtotal;

}

total = subtotal;
txtordertotal.Text = total.ToString();`

请帮我提前谢谢网格查看单元格自动在脚下添加0我的c＃中的小计网格视图？这是我附上图片的代码片段，请随时查看:) http：//s13.postimage。 org / 95vh13rfr / error.jpg [ ^ ]

推荐答案

int i = 0;
foreach (DataGridViewRow dgvr in itemgridview.Rows)
{
    if (dgvr.IsNewRow)
    {
        // do nothing
    }
    else
    {
        int j = 0;
        if (int.TryParse(dgvr.Cells[3].Value + "", out j))
        {
            i += j;
        }
        else
        {
            MessageBox.Show("wrong value at row " + (dgvr.Index + 1));
            return;
        }
    }
}
txtordertotal.Text = i.ToString();

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