c# - 桌面应用程序gridview单元格值根据单元格值锁定交替

Question

我有一个网格，它有 6 列（项目名称、最小数量、最大数量、最大数量、最大数量、折扣）。

要求

当我选择min Quantity时，max Quantity 列将禁用并且其值变为零，当我选择min amount 时，max amout 列将禁用，反之亦然。当我输入数量的最小值时，网格行包含第一行的最大值。

Answer 1

/* You can use grid's cell validating event.  
 ColMinimumQuantity, ColMaximumQuantity, ColMinimumAmount, ColMaximumAmount are grid's column name
 you can set them in Grid Properties. */

private void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
    if (dataGridView1.CurrentCell.OwningColumn.Name.ToUpper().ToString() == "ColMaximumQuantity")
    {
        dataGridView1.CurrentRow.Cells["ColMinimumQuantity"].Value = "0";
        dataGridView1.CurrentRow.Cells["ColMaximummQuantity"].ReadOnly = false;
        dataGridView1.CurrentRow.Cells["ColMinimummQuantity"].ReadOnly = true;
    }

    if (dataGridView1.CurrentCell.OwningColumn.Name.ToUpper().ToString() == "ColMaximumAmount")
    {
        dataGridView1.CurrentRow.Cells["ColMinimumAmount"].Value = "0";
        dataGridView1.CurrentRow.Cells["ColMaximummQuantity"].ReadOnly = false;
        dataGridView1.CurrentRow.Cells["ColMinimummQuantity"].ReadOnly = true;
    }

    if (dataGridView1.CurrentCell.OwningColumn.Name.ToUpper().ToString() == "ColMinimumAmount")
    {
        dataGridView1.CurrentRow.Cells["ColMaximumAmount"].Value = "0";
        dataGridView1.CurrentRow.Cells["ColMiniimumAmount"].ReadOnly = false;
        dataGridView1.CurrentRow.Cells["ColMaximumAmount"].ReadOnly = true;
    }
}

Answer 2

您可以使用网格的单元格验证事件。
ColMinimumQuantity, ColMaximumQuantity, ColMinimumAmount, ColMaximumAmount 是网格的列名，您可以在网格属性中设置它们。