Child DropDown shows Validation on popup load

the validate method is called on input change, that means that the value of that dropdown has changed, so the parent has loaded and as a result the child dropdown has loaded also and after the load the new value is different from the old one, which triggers the `change` event

at 24 Jan 2018 o

I do nothing, only load popup ..
here the source for 2nd dropdown:

View:
    @(Html.Awe().AjaxDropdownFor(o => o.WhereFilterType))
    @Html.ValidationMessageFor(m => m.WhereFilterType)

at 24 Jan 2018 Meccanica Rossi

what's the type of `WhereFilterType` ?

at 24 Jan 2018 o

    enum WhereFilterType
    {
        None,
        Equal,
        NotEqual,
        ...

at 24 Jan 2018 Meccanica Rossi

ok, so it's a value type, so it can't be `""`, it will have the default enum value, and after the parent loads it changes its value to the first item which has a different value `""`
You can change the viewmodel property type to nullable `WhereFilterType?`

at 24 Jan 2018 o

Right !, now is ok

at 24 Jan 2018 Meccanica Rossi

Child DropDown shows Validation on popup load

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