Unable to expand drop down by index UI element

[Former Member]

Hi,

I have got one Drop down by index in my webdynpro form and I want to bind this to backend data. For this purpose, I created one adaptive rfc model and also did all this model binding, context mapping etc.

Now my context in view looks like this :- GetDropDown_Mn (parent node) , this has got child Output_DropDown which again has two value attributes Name and Text.

This is component controller code where you bind and invalidate

__Shell__Ca_Read_Cr_Drbox_Val_Input dropdown = new __Shell__Ca_Read_Cr_Drbox_Val_Input();

wdContext.nodeGetDropDown_Mn().bind(dropdown);

wdContext.currentGetDropDown_MnElement().modelObject().execute();

wdContext.nodeOutput_DropDown().invalidate();

I then tried to bind my UI element in view with Name attribute , but when I try to run my application , the field appears as read only, kind of non editable (blocked) and I am unable to expand my dropdown.

The readonly property of UI element is false. I have hard coded one value like " Please select from drop down list " and I want the backend values to come below this. For this, I have written code to append the backend values with the hardcoded value. Now the problem is my dropdown is blocked and not able to expand ( unable to click the arrow button), and I cannot see the other values in dropdown except the hard coded value.

Can someone please help me on this.

The cardinality of context node is 1..n, selection = 0..1 and I have set Leadselection = -1.

Thanks and regards,

Sai

[Former Member]

Hi All,

Thanks a lot for your replies and suggestions. Issue solved.

Regards,

Sai

[Former Member]

Hi,

Check the context mapping and the cardinility of the node. make the cardinility as 0..n or 1..n

regards,

Sahidur

[Former Member]

Hi Sai,

You can use the below code to add the please select in ur drop down in wdInit() method

wdContext.nodeVn_Node().currentVn_NodeElement().setVa_Attribute("-Please Select-");

please use the name of node as u have created in the context.

and after that please check if yoy are getting values from RFC call or not.

if you are getting the values then try to change the selection property of that node to 1..n and comment the lead selection line that you have written.

hope this will help.

Regards

Narendra

[Former Member]

Hi,

in Which action or method you calling the rfc ?

Regards,

ramesh

[Former Member]

Hi,

This problem might be occuring if the RFC is not returning any value for this node. You may check whether any values are being fetched in the node or not by debugging or printing the values.

Regards,

Divyata

[Former Member]

sorry

to on select property.

Regards,

satya.

[Former Member]

Hi Satya,

Many thanks for your quick reply. I tried this as well, created one action Substitute and tried to bind this with onselect property od DDbyindex field. This is my code for onAction Substitute:-

selectedIndex = wdContext.nodeOutput_DropDown().getCurrentElement().index();

I have declared int selectedIndex = 0 .

But even after doing this, I am facing the same problem.

Thanks and regards,

Sai

[Former Member]

Use the debugger to verify that the node contains any elements at runtime.

Armin

[Former Member]

hi,

Please check if enable property of the ui element is true.

Regards,

Satya.

[Former Member]

Try to check whether that contain any value or not by this Statement.

wdComponentAPI.getMessageManager().ReportSuccess(str);

Str is the value of value attribute or model attribute to which u bind the dropdown

It will print the value of that attribute.

Regards,

H.V.Swathi

[Former Member]

hi,

bind some action to the selected Key property.

Regards,

Satya.

[Former Member]

Wow.

Armin