Define Column Type programmatically

[Dadan]

Hi,
I load my Radgridview from database. 
Here is the sample code
 etc
radgridview1.masterTemplate.loadFrom(mySqlDataReader)
 etc

it works fine. But, i need my Radgridview to show as checkbox if the field from database is a BIT data Type. 
So, i need to change the column type after i load RadGridView from SQL Data Reader.
is this possible ?
if yes, how can i get it ?


Thanks very much,