如何锁定datagridview？ [英] How to lock datagridview?

问题描述

我创建了包含Datagridview的表单。

Datagridview包含每月员工的开始时间和结束时间列。

我想防止用户在过去几个月将任意行插入datagridview 。

我怎样才能实现？

I've created form containing Datagridview.
The Datagridview contains "Start Time" and "End Time" columns for employees for every month.
I want to prevent user from insert any row to datagridview at past months.
How can I achive that?

推荐答案

你可以签到例如 SelectionChanged 该行是否属于过去几个月，如果是，只需设置 DataGridView.AllowUserToAddRows属性 [ ^ ]为假。



如果您想允许添加行，请不要忘记将其设置为true：）

You can check in e.g. SelectionChanged whether the row belongs to the past months and if yes just set DataGridView.AllowUserToAddRows Property[^] to false.

Don't forget to set it to true in case you want to allow the adding of the row :)

我相信你想要实现的只是让某些列只读。这可以这样做..

I believe what you want to achieve is to make only certain columns read only. This could be done as so..

dataGridView1.Columns["pastmonth"].ReadOnly = true;

 You need to write this code in onRowDataBoundEvent

protected void grd_OnRowDataBound(object sender, GridviewEventArgs e)
{
DateTime lblEndDate = IRDateUtils.ConvertToDate(End Time); 
                DateTime currentDate = IRDateUtils.ConvertToLocal(Convert.ToDateTime(DateTime.Now.ToShortDateString()));

       if (lblEndDate < currentDate) // here we are comparing end time with current time
         {
              // here show an alert you cant edit this record because time is expired
         }
}

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