已选中或未选中DataGridViewCheckBoxColumn上的C#datagridview过滤器

该数据集包含一个DataGridViewCheckBoxColumn，我希望根据3种可能性筛选视图：全部显示（复选框选中和未选中）仅显示选中和仅显示未选中

 private void listBoxBehandeld_SelectedValueChanged(object sender, EventArgs e)
        {
            string listBoxValue = "Alle";
            listBoxValue = listBoxBehandeld.GetItemText(listBoxBehandeld.SelectedItem);


        switch (listBoxValue)
        {
            case "Alle":
               //Show checked and unchecked


                break;

            case "Ja":
               //show checked            



                break;

            case "Nee":
                //show unchecked
                }
                break;
        }
        dataGridView.DataSource = meldingenBindingSource;

---

您需要枚举网格中的行，以便根据案例选择进行筛选

这里有一个例子

foreach (DataGridViewRow row in dataGridView.Rows)
{
   //Get the appropriate cell using index, name or whatever and cast to DataGridViewCheckBoxCell
   DataGridViewCheckBoxCell cell = row.Cells[colCheck] as DataGridViewCheckBoxCell;

   //Compare to the true value because Value isn't boolean
   if (cell.Value == cell.TrueValue)
      //The value is true
}