This is the code for a single line Entry (TextEdit equivalent):
Evas_Object *entry;
Evas_Object *layout;
Evas_Object *scroller;
Evas_Object *box;
Evas_Object *nf = data;
scroller = elm_scroller_add(nf);
box = elm_box_add(scroller);
evas_object_size_hint_align_set(box, EVAS_HINT_FILL, 0.0);
evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, 0.0);
elm_object_content_set(scroller, box);
layout = elm_layout_add(box);
elm_layout_file_set(layout, ELM_DEMO_EDJ, "entry_layout");
evas_object_size_hint_align_set(layout, EVAS_HINT_FILL, 0.0);
evas_object_size_hint_weight_set(layout, EVAS_HINT_EXPAND, 0.0);
entry = elm_entry_add(layout);
elm_entry_single_line_set(entry, EINA_TRUE);
elm_entry_scrollable_set(entry, EINA_TRUE);
eext_entry_selection_back_event_allow_set(entry, EINA_TRUE);
evas_object_size_hint_weight_set(entry, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(entry, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_smart_callback_add(entry, "activated", entry_activated_cb, NULL);
elm_object_part_content_set(layout, "entry_part", entry);
elm_box_pack_end(box, layout);
evas_object_show(layout);
For more types of entries look at the examples provided with the tizen SDK.