how to sort a datagridview by 2 columns

Question

How do I sort a DataGridView by two columns (ascending)? I have two columns: day and status.

If I need to sort by one column, I do:

Answer 1

I use this solution when working with bound data. This works for our users, and displays the current sort criteria. All sorts are only in ascending order.

Add a CheckBox, a TextBox, a ColumnHeaderMouseClick event, and code as shown. The CheckBox will toggle the TextBox's visibility, and clicking on any column header will add the sort criteria to the TextBox. To clear the TextBox, just double click in it.

        private void FooDataGridView_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
        {
            if(chkMultiSort.Checked == true)
            {
                string columnHeader = FooDataGridView.Columns[e.ColumnIndex].DataPropertyName;
                txtMultiSort.Text += (columnHeader + ", ");
                try
                {
                    FooBindingSource.Sort = txtMultiSort.Text.Remove(txtMultiSort.Text.Length - 2);
                }
                catch
                {
                    MessageBox.Show("Invalid Sort Data", "Information", MessageBoxButtons.OK, MessageBoxIcon.None);
                    txtMultiSort.Text = String.Empty;
                }
            }

        }

        private void ChkMultiSort_CheckedChanged(object sender, EventArgs e)
        {
            if(chkMultiSort.Checked == true)
            {
                txtMultiSort.Visible = true;
            }
            else
            {
                txtMultiSort.Visible = false;
                txtMultiSort.Text = String.Empty;
            }
        }

        private void TxtMultiSort_DoubleClick(object sender, EventArgs e)
        {
            txtMultiSort.Text = String.Empty;
        }