从DataGridViewCheckBoxCell获得价值 [英] Get value from DataGridViewCheckBoxCell

问题描述

我工作的一个 DataGridView的名为 ListingGrid 试图激活/停用已用户选中上任何 DataGridViewCheckBoxCell 这就是 DataGridViewCheckBoxColumn 。

I am working on a DataGridView called ListingGrid trying to activate / deactivate users that have been "checked" on any DataGridViewCheckBoxCell that is inside the DataGridViewCheckBoxColumn.

这是IM的方式试图做到这一点：

This is the way im trying to do that :

foreach (DataGridViewRow roow in ListingGrid.Rows)
{
    if ((bool)roow.Cells[0].Value == true)
    {
        if (ListingGrid[3, roow.Index].Value.ToString() == "True")
        {
            aStudent = new Student();
            aStudent.UserName = ListingGrid.Rows[roow.Index].Cells[2].Value.ToString();
            aStudent.State = true;
            studentList.Add(aStudent);

        }
    }
}

据我得到，当你检查 DataGridViewCheckBoxCell ，单元格的值是真正吧？但它不是让我值转换为bool，然后比较一下，扔我一个无效的转换异常。

As far as I get, when you check a DataGridViewCheckBoxCell, the value of the cell is true right? But it is not allowing me to convert the value to bool and then compare it, throwing me an invalid cast exception.

推荐答案

尝试

DataGridViewCheckBoxCell chkchecking = roow.Cells[0] as DataGridViewCheckBoxCell;

    if (Convert.ToBoolean(chkchecking.Value) == true)
{
}

或

DataGridViewCheckBoxCell chkchecking = roow.Cells[0] as DataGridViewCheckBoxCell;

        if ((bool)chkchecking.Value == true)
    {
    }

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