How to implement Mutually exclusive checkboxcolumn in a radcontrols gridview

Question

Hello I use radgridview in my windows application A dataset serves as the datasource for the radcontrols gridview. I have to implement a checkbox column, the selection of which has to be made mutually exclusive. i.e at any given point of time there has to be only one checkbox selected.

For this i tried handling the event CellBeginEdit as below

for (int i = 0; i < m_odataSet.Tables[0].Rows.Count; i++)
{
        m_odataSet.Tables[0].Rows[i][0] = false;
}
m_odataSet.Tables[0].Rows[selectedRowIndex][0] = true;

//bind the dataset to the gridview

m_radGridView.DataSource = m_odataSet.Tables[0];

Though this logic seems to work, it doesn't work 100%. There are sometimes a case where two checkboxes appear as selected.

Please point me where am going wrong and how i can correc the same.

Regards Learner.