sorting - sort columns with different type in data grid view -

i have data grid view columns : identitynumber , name , date . each column represents different types of values . identitynumner integer , name string , , date datetime.

my goal click on column's header , sort done accoding types above. auto sort without doing sort string can see . how achive goal ?

i have found solution problem . please check answer below .

found solution problem :

inside ctor of form registered data grid view's sortcompare event :

    datagridview1.sortcompare += new datagridviewsortcompareeventhandler(mycustomsortfunction); 

the custom function iv'e build :

void mycustomsortfunction(object sender, datagridviewsortcompareeventargs e)     {         try         {             // checks if column's header pressed identity number -              // if , sort integer .              if (e.column.name == "colidentity")              {                 int = convert.toint32(e.cellvalue1.tostring());                 int b = convert.toint32(e.cellvalue2.tostring());                 e.sortresult = a.compareto(b);                 e.handled = true;             }             // checks if column's header pressed date -              // if , sort datetime .              else if (e.column.name == "colhdate")             {                 datetime c = convert.todatetime(e.cellvalue1.tostring());                 datetime d = convert.todatetime(e.cellvalue2.tostring());                 e.sortresult = c.compareto(d);                 e.handled = true;             }         }         catch         { }     } 

hope answer :-) shuki .