private void btnDelete_Click(object sender, EventArgs e) { try { if (!string.IsNullOrEmpty(SelectedId)) { DialogResult dresult = MessageBox.Show("确认删除?", "删除确认", MessageBoxButtons.OKCancel); if (dresult == DialogResult.OK) { taskdal.DeleteTask(SelectedId); bindTask(SelectedStatus); } } } catch (Exception ex) { MessageBox.Show(ex.Message); } }