将焦点设置到数据网格视图文本框列单元格 [英] Set focus to Data Grid View Text Box Column Cell

问题描述

我型datagridview的文本框列的gridview的，在以下的列有：

I have a gridview of type datagridview text box column, in that following columns are there:

SrNo    | Description    | HSNCode    | Qty   | Rate   | Amount

我在我的程序自动生成量，但我要检查，如果用户输入到无率中输入数据，然后我想将焦点设置回费率字段在我的计划金额字段：

I am generating amount in my program automatically, but I want to check if the user has entered to amount field without entering data in "Rate" then I want to set focus back to the "Rate" field in my program:

我曾尝试下面的代码：

private void grdData_CellLeave(object sender, DataGridViewCellEventArgs e)
{
   if (e.ColumnIndex == 4)
   {
       if(grdData.Rows[e.RowIndex].Cells[4].Value== null)
       {
           grdData.CurrentCell = grdData.Rows[e.RowIndex].Cells[4];
       }
    }
}

但是代码不工作。结果
我应该怎么做将焦点切换到以前的是对数量？结果
请帮忙领域。

But the code is not working.
What should I do to switch focus to the field that is previous to the "Amount"?
Please help.

推荐答案

尝试：

private void grdData_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
   if (e.ColumnIndex == 5)
   {
       if(grdData.Rows[e.RowIndex].Cells[3].Value.Equals(""))  
       {
           grdData.ClearSelection(); 
           grdData.Rows[e.RowIndex].Cells[3].Selected = true;
       }
   }
}

更​​新 - 测试，工作正常使用 cellclick 事件

private void grdData_CellClick(object sender, DataGridViewCellEventArgs e)
{
   if (e.ColumnIndex == 5)
   {
       if(grdData.Rows[e.RowIndex].Cells[3].Value.Equals(""))  
       {
           grdData.ClearSelection(); 
           grdData.Rows[e.RowIndex].Cells[3].Selected = true;
       }
   }
}

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