End Google Ads 201810 - BS.net 01 --> hi all
i derived a class from DataGridViewTextBoxColumn named DataGridViewTextBoxColumn2

public class DataGridViewTextBoxColumn2 : DataGridViewTextBoxColumn
{
[DefaultValue(typeof(bool), "true")]
public bool IsMandatoryColumn
{ get; set; }
}

in design time i click the Edit and change the value IsMandatoryColumn to true
but when i return to edit form to chock if the property set to true or not surprisingly i find this property with the value of False
please help me
by the way i tried to implement a constructor and set the default value there
and also tried to change the access method to old form of

get{return ...}
set{...=value}

but the problem still persists
pleeeeeeeeeeaaaaaaaaaaaaaaaaaase help me before i gonna crazy