loop through datagridview column and check checkbox

Question

I have a DataGridView with four columns: Eng, Swe, update and hide.

End and Swe are normal strings and update and hide are checkboxes.

I want to make two butto

Answer 1

    private void UpdateAllButton_Click(object sender, EventArgs e)
    {
        foreach (DataGridViewRow row in dataGridView1.Rows)
        {
            row.Cells["update"].Value = true;
        }
    }

    private void HideButton_Click(object sender, EventArgs e)
    {
        foreach (DataGridViewRow row in dataGridView1.Rows)
        {
            row.Cells["hide"].Value = true;
        }
    }