wpf - Editable ComboBox setting caret position using mvvm -

i have editable wpf combobox. want set caret position end of text whenever gets focus.

you can on gotfocus event:

textbox textbox = this.combo.childrenoftype <textbox>().                        firstordefault(element => element.name == "part_editabletextbox");  // if textbox null return if (textbox == null) {     return; } // if textbox == null  // set caret index of textbox textbox.caretindex = textbox.text.length; 

part_editabletextbox name of textbox provides editing in editable combobox.