c# - Putting Values in Controls when dynamically creating a form -

i have been working on issue while , figured out. trying set control when form being initialize. thinking control's value isn't being set because control has been drawn yet (correct me if wrong).

my partial form code

//in form 1     .... private void button2_click(object sender, eventargs e)             {                 form2 form = new form2();                 form.owner = this;                 form.show(this);             } ....}      public form2()     {         initializecomponent();         setdata(); //sets datagridview's combobox column , databinds datatable         setgrid(); //sets each row in datagridview combobox's value string      }     private void setdata()     {         gvtest.allowusertoaddrows = false;         string strconn = "server=10.253.3.185;database=petersun-test1;user id=ctore;password=cqi$$;connection timeout=30";         sqlconnection conn = new sqlconnection(strconn);         datatable dit = new datatable();         try         {             conn.open();             string sql = "select ltrim(rtrim(column_name)) columnname information_schema.columns table_name='coproc' order ordinal_position";             sqlcommand cmd = new sqlcommand(sql, conn);             sqldataadapter da = new sqldataadapter(cmd);             da.fill(dit);              datagridviewcomboboxcolumn dcdatabasefields = new datagridviewcomboboxcolumn();             dcdatabasefields.datapropertyname = "columnname";             dcdatabasefields.headertext = "database field name";             dcdatabasefields.name = "dbfields";             dcdatabasefields.displaymember = "columnname";             dcdatabasefields.valuemember = "columnname";             dcdatabasefields.width = 200;             bindingsource bsourcefields = new bindingsource();             bsourcefields.datasource = dit;             dcdatabasefields.datasource = bsourcefields;              dcdatabasefields.datasource = dit; // bsourcefields;             gvtest.columns.add(dcdatabasefields);         }                 {             conn.close();         }          datatable dt = new datatable();         datacolumn dc = new datacolumn("options");         dt.columns.add(dc);         datarow dr = dt.newrow();         dr["options"] = "a";         dt.rows.add(dr);         dr = dt.newrow();         dr["options"] = "c";         dt.rows.add(dr);         dr = dt.newrow();         dr["options"] = "d";         dt.rows.add(dr);         dr = dt.newrow();         dr["options"] = "e";         dt.rows.add(dr);         gvtest.datasource = dt;     } private void setgrid() {  foreach(datagridview row in gvgrid.rows)  {    row.cells[0].value = "string";   } } 

so think happening is: 1. component getting initialized 2. creates datagridview columns 3. sets column values 4. draws form

is thinking correct? question form event should set control's value? did research , thinking on paint event, not sure either. explain form's life cycle in detail or point me somewhere. thanks

i added coded form_load , added values grid