Expression Binding for Property in SAPUI5 - sapui5

I'm trying to set the property of a control using another control's property. In my case, I have one <sap.m.Select> and a <sap.m.Input>. The visible of <sap.m.Input> will depend on the selectedItem of the <sap.m.Select>. IMO, there is an available approach using Expression binding in XML View but I don't know how. Any suggestion?

You can use two way binding so that both properties are binding expressions over the same property in the model.
So you can create a JSON model for example and put there a property called selectedItem. The binding of the properties should be: on select selectedItem={mymodel>selectedItem} and on input visible={parts: [{path: "mymodel>selectedItem"}], formatter: function (selectedItem) {<your manipulation>} }.
You can do that with JavaScript and with XML view. In XML view you should reference to a formatter method in the controller.

Related

What does the underscore mean before a variable in Swiftui in an init()?

What does the underscore mean before momentDate? Why is it needed?
The underscored variable name refers to the underlying storage for the Binding struct. This is part of a language feature called Property Wrappers.
Given one variable declaration, #Binding var momentDate: Date, you can access three variables:
self._momentDate is the Binding<Date> struct itself.
self.momentDate, equivalent to self._momentDate.wrappedValue, is a Date. You would use this when rendering the date in the view's body.
self.$momentDate, equivalent to self._momentDate.projectedValue, is also the Binding<Date>. You would pass this down to child views if they need to be able to change the date.
For Binding, the "projected value" ($) is just self, and the difference between _ and $ is only in the access level. However, other property wrappers may project a different type of value (see the #SmallNumber example in the language guide).

How to get an element's property in WebKitGTK?

I want to get an element's property (for instance, value) in WebKitGTK. I can easily get an attribute, and I can also get some properties of some types by using e.g. webkit_dom_html_input_element_get_value, but is there a general way of getting any property of any element which has that property?

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get values of multiple checkboxes in extbase/fluid TYPO3

How to get values of multiple checkboxes checked in frontend template with fluid and use these values in action extbase?
Declare the argument in your controller action and give it a type array or an array-compatible type which can be constructed by the PropertyMapper.
Name all fields the same as this argument.
Post the data and use the argument in the controller action.
This is the correct way of receiving an array as value of a controller argument. Accessing it directly from the request is not recommended, unless you also declared the argument on the controller action. Not doing so will bypass important argument processing.
save them in a form and retrieve the POST data trough:
$this->request->getArgument('variable')

How to set value to property through Dozer mapping file?

I am using Dozer mapping. i have two pojo1 and pojo2. pojo1 values to be mapped to pojo2. Pojo1 has 3 properties and Pojo2 has 4 properties. i am able to map 3 properties form pojo1 to pojo2 but to map fourth property i dont have property in pojo1. to map fourth property i cannot take value from pojo1, directly i need to give the value by taking from Enum. Please help me is it possible to give value to any property through mapping file?
value from enum directly not from pojo1
fourth property
Thanks!
As far as I know this is not possible in a convenient way. The only way to do this atm is by either having a custom converter, or by modifying one of the POJOs.
With a custom converter you could just map pojo1.field3 to pojo2.field4. The converter completely ignores pojo1.field3, and just sets the pojo2.field4 to your enum value.
Another solution is to just modify pojo1 and add a field4 which always returns the enum value.
And the third solution is to modify pojo2, and just set field4 in the default constructor. If you can't modify the default constructor, you can use a custom create method or a custom bean factory to achieve the same.
I've been doing dozer mappings a lot, and would like some more convenient solution for this too. Unfortunately I don't think there is any atm.
Let me know how it works out for you!