Input field validation in web dynpro abap

Hi....i have a input field in a view, which is bound with dictionary object of char type ,through context.for this input field, i have to allow the end users to enter the numeric and float values only,but in my condition it accepting everything and returns runtime error.for this how to validate inputs other than numerics.
Thanks & regards,
pavan maganti.

DATA lo_nd_itab2 TYPE REF TO if_wd_context_node.
DATA lo_el_itab2 TYPE REF TO if_wd_context_element.
DATA ls_itab2 TYPE wd_this->element_itab2.
DATA lv_non_numeric TYPE wd_this->element_itab2-non_numeric.
*     get message manager
DATA lo_api_controller     TYPE REF TO if_wd_controller.
DATA lo_message_manager    TYPE REF TO if_wd_message_manager.
* navigate from <CONTEXT> to <ITAB2> via lead selection
lo_nd_itab2 = wd_context->get_child_node( name = wd_this->wdctx_itab2 ).
* get element via lead selection
lo_el_itab2 = lo_nd_itab2->get_element( ).
* get single attribute
lo_el_itab2->get_attribute(
    EXPORTING
      name = `NON_NUMERIC`
    IMPORTING
      value = lv_non_numeric ).
IF lv_non_numeric CO '1234567890'.
    lo_api_controller ?= wd_this->wd_get_api( ).
    CALL METHOD lo_api_controller->get_message_manager
      RECEIVING
        message_manager = lo_message_manager.
*     report message
    CALL METHOD lo_message_manager->report_success
      EXPORTING
        message_text = 'All numeric'.
ELSE.
    lo_api_controller ?= wd_this->wd_get_api( ).
    CALL METHOD lo_api_controller->get_message_manager
      RECEIVING
        message_manager = lo_message_manager.
* report message
    CALL METHOD lo_message_manager->report_warning
      EXPORTING
        message_text = 'Contains characters'.
ENDIF.

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How to do the feild validations in web dynpro abap

dear all,
how to do the feild validations for the screen in web dynpro abap.
thanks,
jyothi.

hi jyothi,
There are diffrent ways of doing validations for fields of screen in webdynpro abap depending on the requirements.
I am giving simplest way of doing this validation(it may fullfil your requirement also)
For e.g you want that without entering value in particular field user should not proceed to submit the data in screen.
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lo_api_controller ?= wd_this->wd_get_api( ).
lo_message_manager = lo_api_controller->get_message_manager( ).
DATA var1 type string.
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node->get_attribute( EXPORTING name = ' VALUE'
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IF var1 IS INITIAL.
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Now in above code VALUE is the attribute with whome your input field is bound .So if user doesnt enter any value into it he will get above msg (u have to use message are ui element to use this method)
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regards
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Hi,
I created an application with three input fields and created the corresponding context. When I start the wd app the input fields are disabled and can not be edited. The property enabled if this fields is true!
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Regards

Wow, that was more than fast :-D
But you are absolutely right, THANKS!!! The input fields are enabled now.
Do you might also know how I can get this triangle? I have this problem also in an other topic ([How-to Integrate Visual Composer UIs within a CE7.11 BPM Process|http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2011e628-b317-2c10-9fa7-952155e10705]). Also see [Video|http://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/6065bee4-a317-2c10-4c8c-cfa1c3eac185&overridelayout=true] at minute 06:05
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Hi Susmita,
For your 3 rd requirement...
Initially you will be storing the first date entered by the user right???
Say that date is D1. and user entered hours is H1.
now after some days at day D2 user again trying to enter some hours say H2. Now you have to restrict user from entering hours which are
greater than 24*D2-D1....
so now you have to get D2-D1....
For this....
long l1=youdate1.getTime();   // This will convert your Date D1 into long...
then,
Date d=new Date(System.currentTimeMillis());
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So Now l2-l1 will give you number of days between past date and today's date...
So On Save you check for
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message("Please enter valied number of hours");
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Regards,
Srinivas.

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Hello Experts
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Hi John,
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3) Would it be OK if we manually apply the changes specified in 1034425 without implementing 1029721?
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Your help in this matter will greatly help us in using the ADOBE services provided by SAP WDA.
Thanks much

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Hi johnright ,
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Check :-
1. In your On action GO after filling the table you are firing the out bound plug :-
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2.All outbound plug and inbound plug are link properly and every thing is ACTIVATED.
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Binding:-
In web dynpro ABAP you will not able to get any value of any variable outside of any method. Here we use context node which is referrence that we create reference to any particular structure we required. Now to hold the values you need to bind
the values of your internal table to the context node.
If the node is in view then its values are visible to all the local method of the view.
If the node is in component controller then the you bind a value to the node from one view and you can get it in another view.
Remember binding and mapping are not same.
Mapping is done between node like inthe second scenario i have explained you need to create a node in view controller and then you need to map it to the corresponding view of component controller to send values across view.
cardinality:-
Each node contains data fields that represent one of the following:
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Monishankar C

Web Dynpro ABAP: Assigning of Conversion Exits in ALV

Hi,
We are currently developing a generic data display application using ALV technology in Web Dynpro ABAP. "Generic" means that the structure of the data is created dynamically during runtime (using RTTS) and that even the contained data elements are created dynamically without any relation to DDIC. The generation is based on metadata like field name, data type, length, decimals, conversion exit.
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Thanks for your help in advance.
Best Regards,
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Hello Sven Hader,
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Can you please let me know how you are diong this?
Meanwhile, you can try this approach to assign a Conversion exit to ALV Table column attribute dynamically.
DATA:     lv_data                         TYPE dd04v,
              lv_mode_ext2int          type   ESEBOOLE. "Conversion mode that you are in
read the data from the database
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      EXPORTING
        name                = lv_ddobjname
        state               =   iv_object_state
        langu               =   iv_langu
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      EXCEPTIONS
        illegal_input       = 1
        OTHERS           = 2.
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IF lv_mode_ext2int = 'X'.
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        TO <lv_funcname>.
ELSE.
    ASSIGN cl_im_imp_ehs_material_erp=>mv_conversion_exit_output
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CHECK <lv_funcname> IS ASSIGNED.
TRY.
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          output = ev_value.
      IF sy-subrc <> 0.
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    CATCH cx_sy_dyn_call_illegal_func
          cx_sy_dyn_call_illegal_type
          cx_sy_dyn_call_param_missing
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Thanks,
Bharath.K
Edited by: Bharath Komarapalem on Dec 16, 2008 2:47 PM

How to create calendar in web dynpro abap

Hi ,
how to create calendra in web dynpro abap.
Thanks in advance.
Regards, Chetan

hi,
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Regards,
Jithin

Web Dynpro ABAP: Documentation and help link

Hi,
I'm in the process of creating a Web Dynpro ABAP application and was wondering whether you can maintain Documentation for the application, as you would a standard ABAP report? I see the Documentation option in the Goto menu of the workbench, but it is inactive.
Also, i notice you can maintain a 'Help Link' for the application. Does anyone have any information on this as I can't find anything on the SAP Help website.
Thanks,
Nick

Hi Nick,
here's the link to the corresponding documentation:
http://help.sap.com/saphelp_nw04s/helpdata/en/54/bad1d244b2754bac09ae1558c15984/frameset.htm
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Hello,
we are looking for a listing that states the functional and technical differences between Web Dynpro ABAP an BSP.
Is there anybody who has come along such a list ?
Tx a lot in advance!
Best regards,
Ana

Annette,
check this
The SAP Web Application Server (WAS) provides a page-based programming model with server-side scripting as well as server page technology for developing, designing and implementing Web applications:
Business Server Pages (BSP). Server-side scripting enables direct access to all elements in the application server (such as function modules, database tables, ABAP Objects, and so on.).
We can create HTML pages or Business Server Pages (BSPs) with server-side scripting in ABAP or JavaScript.
The HTMLB and XHTMLB HTML Business libraries are available as BSP Extensions for a uniform layout and its associated usability advantages.
And In the Web Application Server, the presentation layer is separate from the business logic. This makes it possible to implement front-end technology.
Why BSP NOT WebDynpro
                          BSP
              ABAP WEBDYNPRO
Currently PMUSA/JMC customers are using Fire fox (Mozilla), Internet Explorer and Netscape navigator web browsers to access WEBUYPM application.
BSP supports these web browsers.
Restricted (Some of the features will not be supported by WebDynpro)
Existing WEBUYPM application is written in HTML, Business HTML and JavaScript language.
BSP supports these languages. And it allows even to mix ABAP, HTML and JavaScript thus has more flexibility to convert WEBUYPM application into BSP.
Web Dynpro does not support HTML/JavaScript.
Existing WEBUYPM displays the trade communications (Information tab) based on JavaScript and custom configuration file
BSP supports JavaScript, we can display the trade communications in BSP too.
Web Dynpro does not support Java Script.
Existing WEBUYPM application has different colors schemes, Logos and graphical elements for PMUSA/JMC companies.
BSP support s multiple color schemes/logo. These color schemes can be set dynamically based on company code selection at runtime.
Separate Themes has to be developed for each User Interface elements.
Development effort needs to be involved to even display a logo.
BSP supports client side (user) validations. As most of these validations can be done at client side, the no. of hits on the server can be reduced and thus giving better response for the user inputs.
In this way, performance can be increased.
Web dynpro does not support any client side validations, every time the request must be sent to server to validate the useru2019s input. This increases the traffic and reduces the performance
WEBUYPM application has logos, images.
BSP supports Client side caching, and thus loads these element from client side very quickly.
Web dynpro supports very little use of caching on the client side, and hence quite a significant delay in starting on some customeru2019s browsers.
BSP has no restriction on user interface possibilities, Ex. Grid, drop down boxes, Font colors, size etc.
Significantly more restrictive in user interface possibilities.
Ex. Only those fonts, which are provided by SAP, can be used.
Appearance can be changed dynamically using same web pages, to support different colors for different companies.
We can have same (or better) look and feel if we convert the application into BSP.
As there is no HTML coding involved in web dynpro the same look and feel as we have it today can't be achieved by using web dynpro.
BSP is built for developing any type of web application (including mobile applications. It can be accessed from desktop, laptop, and any kind of smart devices like PDA.
Web dynpro applications can not be accessed from PDA s (Not possible)
Why WebDynpro NOT BSP
             ABAP WEBDYNPRO
                           BSP
Personalization can be given to the end user if they do not want see any of the user-interface elements.
We can not hide any of the user-interface elements (Ex buttons ex) during the runtime.
Note - Current WEBUYPM application does not support any of these options.
Currently we are setting/retrieving the runtime context values in a session.
Web dynpro supports State full applications.
No additional development would be required.
BSP also supports to set runtime values and to retrieve the runtime context values, but minor development would be required to achieve this functionality.
Currently users can see view source for WEBUYPM HTML pages.
Using Web dynpro this can be restricted thus providing more security to the application.
HTML view source can be available to the users, Users can see the HTML client side code (not server side coding) as it does today.
By using Adobe Flash Island, powerful web pages (RIA) can be created.
But, Flash Island comes with Net weaver.
BSP does not support Flash Island. But, BSP supports Java Script.
JavaScript is essential for the new trend of rich internet applications (RIA), it is used by all the new applications, Ajax, Widgets, Flash, and even Microsoft is supporting JavaScript for the new generation of RIA
Web dynpro has wizard tools to generate the code to create/configure the User Interface elements.
Development effort would be required to create UI elements.
We dynpro has uniformity as we use standard colors provided by SAP
Uniformity can be achieved by using style sheets (minor development would be required).
Thanks
Bala Duvvuri

Web Dynpro ABAP - Using Formatted TextView

Hi,
I created a Web Dynpro ABAP application. I need to display user information (i.e. address, phone # etc) on the home page after user logs in to the portal. I created some Formatted TextView elements in the view and trying to change their text during the runtime. Can someone please let me know how to change the text of the field in runtime. If some one can provide pseudo code with sysntax, it would be great help. Sorry, if it is a very basic question.
Thanks.

Hi Shan,
There is nothing special about how you can work with the text of FormattedTextView UI element. You just need to bind the "Text" property of this element to a context attribute of type STRING. So whatever value you maintain within this attribute would get displayed in your FormattedTextView. So in order to dynamically change the text you would just have to do a SET_ATTRIBUTE on this context attribute. If you want to know as to how you can do it via the methods of FormattedTextView class then you have a method by name SET_TEXT in the class CL_WD_FORMATTED_TEXT_VIEW. You can call this method using the reference of the FormattedTextView on your view & pass the desired text as input to the parameter "VALUE". However keep it in mind that you are better off binding the "Text" property to a context attribute & changing the attributes data rather than directly using the SET_TEXT method to change the data.
For any example over FormattedTextView you can check the standard component: WDR_TEST_MISC.
Regards,
Uday

F4 Value Help on Adobe Interactive Form with Web Dynpro ABAP

Hello,
I have created an Interactive Form with ZCI type.
I placed a text field MATNR on the form.
Then I placed a Native WD UI element 'Value Help' as mentioned in the below link: http://help.sap.com/saphelp_nw70/helpdata/EN/42/fb2fe500553ee4e10000000a1553f7/frameset.htm
This form was then embeded into Web Dynpro ABAP view.
The problem is that when I click on the F4 button, nothing happens.
Is anything else needs to be done?
Thanks
Sagar

Hi Amol,
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Var fieldname = "yourfieldname";
Note: Don't forget to link the context attribute to search help. ie. in the context properties of the attributes select the input help mode as dictionary search help and specify the name of the search help present in data dictionary.
And now go to Utilities and click on u201CInsert Web Dynpro Scriptu201D.
Also make sure that you specify the Layout as ZCI Layout in the Propertioes of the Adobe Form.
Ragards,
Amol Patil.

Alv Input Field Validation

Hi Experts,
In my initial screen there are some search criteria based on which i ve to display the data by using ALV.
And i ve hardcoded some value and the data are coming in ALV . But my question is how can i validate the data which is enter by the user in the search field so that data can bedisplay based on the search criteria in the alv output.
Regards,
Satya

Hi ,
use OVS (object value selector) method there , it wll take input and according to that f4 will be displayed.
OVS Component:
https ://OVS Input Help
http://help.sap.com/saphelp_erp2005/helpdata/en/30/d7fa41c915da6fe10000000a1550b0/content.htm
Packages : WDR_TEST_OVS2,WDR_OVS,WDR_TEST_OVS
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-technology/webdynpro/wd%20java/wdjava%20archive/web%20dynpro%20valuehelp%20using%20object%20value%20selector.pdf
/people/shruti.rathour/blog/2008/05/05/ovs-help-in-web-dynpro-abap
Regards,
Muneesh Gitta.

Input field validation in web dynpro abap

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