如何清除C#.Net中未绑定DataGridView中的单元格值 [英] how to clear a cell value in a unbound DataGridView in C#.Net

问题描述

亲爱的专家；
我有一个datagridview，并在其中添加了一些列.它们是单价，特别是单价，数量和总价值.根据单价和数量计算的总价值，即总价值=单价*数量.我可以在此datagridview中添加5个项目并计算总值的总值.但是我的问题是，当我尝试更改数量或单价时，然后在更改数量或
之前更改了总值 单价 .我在下面添加我的代码

Dear Expert;
I have a datagridview and i add some columns in it . they are slno, particular ,unit price ,qty and gross value. the gross value calculated on the basis of unit price and qty that is gross value= unit price* qty. i can add 5 items in this datagridview and calculate the gross total of gross value.But my problem is when i try to change the qty or unit price ,then the gross value changed before change the qty or
unit price . i add my code bellow

private void dataGridView1_CellEnter(object sender, DataGridViewCellEventArgs e)
       {
           a = Convert.ToInt32(dataGridView1.CurrentRow.Cells[2].Value);
           b = Convert.ToInt32(dataGridView1.CurrentRow.Cells[3].Value);

           dataGridView1.CurrentRow.Cells[4].Value = a * b;

           //ng = 0;
           c = Convert.ToInt32(dataGridView1.CurrentRow.Cells[4].Value);
           ng = ng + Convert.ToDouble(c);
           textBox1.Text = "";

           textBox1.Text = ng.ToString();
          }

请帮助我

please help me

推荐答案

您必须对以下所示事件进行计算...

私有void grd_bill_master_CellValueChanged(对象发送者，DataGridViewCellEventArgs e)

{
//您的代码
}

you have to perform your calculations on the event shown below...

private void grd_bill_master_CellValueChanged(object sender, DataGridViewCellEventArgs e)

{
// your code
}

并清除未绑定的单元格值

grd.Rows [int no] .Cell [int no] .Value =您的值";

and to clear unbound cell value

grd.Rows[int no].Cell[int no].Value="your value";

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