Not able to make one input field mandatory dynamically in web dynpro

[Former Member]

Hi Experts,

I'm not able to make one input field mandatory dynamically. I have written the code in the "WDDOMODIFYVIEW" method of the view. My code is written below:-

DATA lo_nd_origin_sub_mandt TYPE REF TO if_wd_context_node.

DATA lo_el_origin_sub_mandt TYPE REF TO if_wd_context_element.

     lo_nd_origin_sub_mandt = wd_context->get_child_node( name = wd_this->wdctx_origin_sub_mandt ).

*   get element via lead selection

     lo_el_origin_sub_mandt = lo_nd_origin_sub_mandt->get_element( ).

*   set single attribute

         lo_el_origin_sub_mandt->set_attribute(

           name =  'ORIGIN_SUB_MANDATORY'

           value = 'required' ).

But field is not getting mandatory. Please help me out

[Former Member]

Hi,Follow the steps below.

1)Create one attribute of type WDUI_STATE in your context.

2) Now bind this attribute to the property value namely state as shown below.

    

3) Now set the attribute property as per you requirement as 00 ( Normal Item) or 01( Required).

i.e

lo_el_<element>->set_attribute(  name =  `<attribute_name`   value = '00' ). " For Normal

or

lo_el_<element>->set_attribute(  name =  `<attribute_name`   value = '01' ). " For Required.

Hope this helps you.

Thanks

KH

[somnath]

Hi -

Here are my observation and suggestion:

1. I assume you have bound the context with the state property for the input element.

2. What data type you used to create that attribute? I suggest to use the WDUI_STATE and bind this attribute with the state property for the field which you want to display as mandatory during run time.

3. In WDDOMODIFY method , I suggest you the below code to be placed judiciously:

data lo_el_node type ref to if_wd_context_element.

lo_el_node = wd_context->get_child_node( wd_this->wdctx_node )->get_element().

** I have taken a node with two attributes

1, for binding the input field - value property (Say MATNR)

2. for binding the input field - state property ( Say REQUIRED )

****

so ..>>>  ls_node-required = cl_wd_abstract_dropdown=>e_state-required.

***now bind this property with the element.

lo_el_node->set_attribute(

exporting value = ls_node-required

               name = 'REQUIRED'

).

I hope this would solve your issue.

- Thanks , Somnath

[Former Member]

Hi Swarup,

What you can do is,

You can set the property of the input field as (state = required).

Now in the method WDOBEFOREACTION, check for the mandatory fields.

Use the method CHECK_MANDATORY_ATTR_ON_VIEW of the class CL_WD_DYNAMIC_TOOL to check the mandatory fields.

Raise an error message ‘Fill all required entry fields’, if the mandatory fields are not entered.

Please rewards points if helpful.

Regards,

AkkI

[harsha_jalakam]

Hi Swarup,

For changing the element properties dynamically without the need of creating an extra attribute, we can make use the set_attribute_property of the element,  so that same attribute can be made use of.

DATA lo_nd_origin_sub_mandt TYPE REF TO if_wd_context_node.

DATA lo_el_origin_sub_mandt TYPE REF TO if_wd_context_element.

     lo_nd_origin_sub_mandt = wd_context->get_child_node( name = wd_this->wdctx_origin_sub_mandt ).

*   get element via lead selection

     lo_el_origin_sub_mandt = lo_nd_origin_sub_mandt->get_element( ).

call method lo_el_origin_sub_mandt-->set_attribute_property

   exporting

     attribute_name = 'ORIGIN_SUB_MANDATORY'

     property      = 2

     value         = 'X'.

After you make the changes don't forget to bind this attribute(ORIGIN_SUB_MANDATORY) to the state property of the UI in the view.

Regards,

Harsha

[Former Member]

Can't use "Required" here. It has to be one of the following:

00 - Normal Item

01 - Mandtory field

*   set single attribute

         lo_el_origin_sub_mandt->set_attribute(

           name =  'ORIGIN_SUB_MANDATORY'

           value = '01' ).

thanks,

VS

[Former Member]

Hi,

Please make the type of the attribute as char1. Then in the code do the following.

*   set single attribute

         lo_el_origin_sub_mandt->set_attribute(

           name =  'ORIGIN_SUB_MANDATORY'

           value = 'X' ).

Regards,

Subhabrata