DataGridView中DataGridViewCheckBoxCell 控制选中

关于DataGridView中DataGridViewCheckBoxCell 控制选中，以下是单选实现，需要设置该列readonly属性为ture,否则只有当选中其他时才会有反应！

以下部分代码

 

 dgv.CommitEdit(DataGridViewDataErrorContexts.Commit);
                DataGridViewCheckBoxCell chktmp  =  (DataGridViewCheckBoxCell)dgv.Rows[e.RowIndex].Cells[ " chk " ];
                 if  ( ! ( bool )chktmp.FormattedValue)
                {
                    chktmp.Value  =   true ;
                }
                 for  ( int  i  =   0 ; i  <  dgvAccount.Rows.Count; i ++ )
                {
                   
                     if  ( i  !=  e.RowIndex)
                    {
                   
                        DataGridViewCheckBoxCell chk  =  (DataGridViewCheckBoxCell)dgv.Rows[i].Cells[ " chk " ];
                        chk.Value  =   false ;
                    }

                }

 

 判断是否选中

  for  ( int  i  =   0 ; i  <  dgv.Rows.Count ; i ++ )
            {
                dgv.CommitEdit(DataGridViewDataErrorContexts.Commit);
                DataGridViewCheckBoxCell chk  =  (DataGridViewCheckBoxCell)dgv.Rows[i].Cells[ " chk " ];
                 if  (chk  !=   null   &&  ( bool )chk.FormattedValue)
                {
                        
                }
            }