I m Stuck in two situation where I have to modify value of one field depending on another field selection.

  1. First situation is like I have two field

    • Region (Node reference) - the widget type is autocomplete

    • Subregion (Node reference) - the widget type is autocomplete

      On select of region, subregion value should be populate. Behavior should be same like country and state.

  2. Second situation is like in same form I have another two field

    • Date field

    • Event - widget type is auto complete

      On select of date, events on that date should be populate.

Both are almost similar situation. I haven't found any solution for both above situation. How can I do this. Please anyone help me on this. Thanks

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