SAP UI5 radio button group data binding

[former_member585503]

Dear SAP UI5 experts,

can some one please advise on the two-way data binding of the radio buttons . In the data model I have an attribute called textType, it can return "Y" or "N", based on that I have to select the correspondent radio button on my view

<code><m:RadioButtontext="yes"selected="{path:'/textType',formatter: function(val){ if(textType== 'Y') return true; }else{ return false} }"/><m:RadioButtontext="No"selected="{Selected}"/>

however I am not able to set the value. I tried using the radiobutton group however no success

<code><RadioButtonGroupbuttons="{/textType}"><RadioButtontext="YES"selected="{Selected}"/><RadioButtontext="No"selected="{Selected}"/></RadioButtonGroup>

can some one pls advise on this .

[junwu · Accepted solution]

make it (

textType

) boolean

once you use format function, it becomes oneway binding, model data will go to screen but not vice versa

[former_member585503 · Accepted solution]

Hi Jun,

have tried changing it to Boolean and in my view change it to

.... <m:RadioButton text="Yes" selected ="{Text_Type}" />

however I am not able to get the data displayed any other input?

[maheshpalavalli]

the path in the selected property is given as "{selected}", I think it should be "/selected" ( assuming it is direct property binding and not originated from element binding) and It should work as I've tried it some time back.

Note: one more thing is if you put the formatter it will become one way binding, not two way, I guess you have to check that as well

Formatter functions allow one-way conversion only, while data types can also be used for two-way binding as they cannot only format, but also parse user input

[junwu]

the easy way is to make the field type to boolean, or you have to use custom data type in binding.

[former_member585503]

Yes Jun, I have used field type as Boolean.

[former_member585503]

Yes I have used expression binding as I need this to save the data as well to the backend.

<m:RadioButton text="YES" selected ="{= ${/textType}==='YES'}" />  <m:RadioButton text="No" selected = "{=${/textType}===''}" />