The CheckBox column is added to the DataGridView datagrito select rows.

The CheckBox column is added to the DataGridView datagrito select rows.
Add the CheckBox column in The DataGridView to select rows.

 

1. Edit the DataGridView and add a CheckBox column. The value of Name is "select", for example:

 

2. Cancel the Editable attribute of the datagridview datagri, Add the CellClick event, and use code to control the selected status of the checkbox. The specific code is as follows:

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)        {            if (e.RowIndex == -1 || e.ColumnIndex == -1) return;            if (dataGridView1.Columns[e.ColumnIndex].Name != "select") return;            DataGridViewCheckBoxCell cell = (DataGridViewCheckBoxCell)dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];            if (cell.Value != null && (bool)cell.Value)            {                cell.Value = false;            }            else            {                cell.Value = true;            }        }

 

3. associate a right-click menu for the dview datagri. the code for how to obtain the row selected by the checkbox in the datagridview dview is as follows:

        private List<AlarmModel> GetAlarmConfirmModelsByDGVCheckbox()        {            List<AlarmModel> alarmModels = new List<AlarmModel>();            foreach (DataGridViewRow row in dataGridView1.Rows)            {                if (row.Cells["select"].Value != null && (bool)row.Cells["select"].Value)                {                    AlarmModel model = row.DataBoundItem as AlarmModel;                    if (model == null) continue;                    alarmModels.Add(model);                }            }            return alarmModels.Count == 0 ? null : alarmModels;        }