c# - Dynamically add Children to WPF UserControl and Handle its events from WinForm -

i have simple wpf usercontrol called "xnavpanel" contains panel. added control winform using "elementhost". have wpf usercontrol called "mainmenubutton" contains textblock.

from winform; add many "mainmenubutton" in "xnavpanel" dynamically in runtime. have method loop on datatable rows , foreach row adding "mainmenubutton" "xnavpanel" , add event handler each "mainmenubutton".

the problem is; controls doesn't invoke handlers!

public static void fillmenu(xnavpanel navpanel, datatable items) {     navpanel.mainpanel.children.clear(); //mainpanel panel inside usercontrol      mainmenubutton menuitem;     foreach (datarow dr in items.rows)     {         menuitem = setmenuitem(dr);         navpanel.mainpanel.children.add(menuitem);     } } static mainmenubutton setmenuitem(datarow dr) {     mainmenubutton menuitem = new mainmenubutton();     menuitem.name = "mi_" + dr["formname"].tostring();     menuitem.menuname.text = dr["name"].tostring(); //menuname txblock inside usercontrol      menuitem.mouseup += new system.windows.input.mousebuttoneventhandler(menuitem_mouseup);     //menuitem.mouseup += ((sender, e) => messagebox.show((sender mainmenubutton).name));      return menuitem; } static void menuitem_mouseup(object sender, system.windows.input.mousebuttoneventargs e) {     messagebox.show((sender mainmenubutton).name); } 

i found problem
code in question working 100%
problem in else not included in code.