Question

请帮助我。

我有以下代码（C＃）：

        decimal quantity = 0, avai = 0, newavai = 0;
        decimal totalstock = 0, newtotalstock = 0;

        if (decimal.TryParse(G1.Rows[e.RowIndex].Cells["Quantity"].Value.ToString(), out quantity) && decimal.TryParse(G1.Rows[e.RowIndex].Cells["AvailableStock"].Value.ToString(), out avai))
        {
            newavai = avai + quantity;
            G1.Rows[e.RowIndex].Cells["AvailableStock"].Value = newavai.ToString();
        }
        if (decimal.TryParse(G1.Rows[e.RowIndex].Cells["TotalStock"].Value.ToString(), out totalstock) && decimal.TryParse(G1.Rows[e.RowIndex].Cells["Quantity"].Value.ToString(), out quantity))
        {
            newtotalstock = totalstock + quantity;
            G1.Rows[e.RowIndex].Cells["TotalStock"].Value = newtotalstock.ToString();
        }

这段代码只是关于在Datagridview中计算单元格，它工作得很好。事实是，我希望在加载表单时自动执行。现在我暂时把它放在Cell Click事件中因为我想测试代码并且不知道在哪里放代码，请帮帮我。

谢谢。

Answer 1

你可以用两个选项来做到这一点：

首先创建DataGridViewCellEventArgs的新实例，然后指定列索引和行索引，您可以参考此链接获取更多信息： DataGridViewCellEventArgs

然后我用 ee 替换所有 e ，因为在Form Load中，变量e已被使用。就是这样。

    private void Form1_Load(object sender, EventArgs e)
    {
        DataGridViewCellEventArgs ee = new DataGridViewCellEventArgs(1, 1);

        decimal quantity = 0, avai = 0, newavai = 0;
        decimal totalstock = 0, newtotalstock = 0;

        if (decimal.TryParse(G1.Rows[ee.RowIndex].Cells["Quantity"].Value.ToString(), out quantity) && decimal.TryParse(G1.Rows[ee.RowIndex].Cells["AvailableStock"].Value.ToString(), out avai))
        {
            newavai = avai + quantity;
            G1.Rows[ee.RowIndex].Cells["AvailableStock"].Value = newavai.ToString();
        }
        if (decimal.TryParse(G1.Rows[ee.RowIndex].Cells["TotalStock"].Value.ToString(), out totalstock) && decimal.TryParse(G1.Rows[ee.RowIndex].Cells["Quantity"].Value.ToString(), out quantity))
        {
            newtotalstock = totalstock + quantity;
            G1.Rows[ee.RowIndex].Cells["TotalStock"].Value = newtotalstock.ToString();
        }
    }

另一个选项是你可以用这个来调用click事件处理程序：

 private void Form1_Load(object sender, EventArgs e)
    {
        DataGridViewCellEventArgs ee = new DataGridViewCellEventArgs(1, 1);
        G1_CellClick(sender, ee);
    }

private void G1_CellClick(object sender, DataGridViewCellEventArgs e)
    {
       decimal quantity = 0, avai = 0, newavai = 0;
        decimal totalstock = 0, newtotalstock = 0;

        if (decimal.TryParse(G1.Rows[e.RowIndex].Cells["Quantity"].Value.ToString(), out quantity) && decimal.TryParse(G1.Rows[e.RowIndex].Cells["AvailableStock"].Value.ToString(), out avai))
        {
            newavai = avai + quantity;
            G1.Rows[e.RowIndex].Cells["AvailableStock"].Value = newavai.ToString();
        }
        if (decimal.TryParse(G1.Rows[e.RowIndex].Cells["TotalStock"].Value.ToString(), out totalstock) && decimal.TryParse(G1.Rows[e.RowIndex].Cells["Quantity"].Value.ToString(), out quantity))
        {
            newtotalstock = totalstock + quantity;
            G1.Rows[e.RowIndex].Cells["TotalStock"].Value = newtotalstock.ToString();
        }
    }

加载表单时自动执行

1 个答案: