How to enable/disable the listItem in ADF listView in JDEV 11.1.1.7.0
Hi,
the requirement is to enable and disable the listItems in a ADF ListView based on a certain flag condition. The listItem has an image and a output text. The listView is set to allow mutiple selections. The var of the listView which is set to row has the conditional flag which evaluates to true or false in in EL #{row.isSelected}. For the rows that this expression is true I want to disallow the user to select the listItem which has the <af:image> and the <af;outputText>. Also looking for a way to not allow the highlighting of the listItem which shows up on selection.
Appreciate any pointers for this.
Thank you.
Frank,
Is there a way that we can modify the selection property of the listview to disallow the selection of the listItems which have the boolean flag evaluated to true?. Also wanted to know if skinning of the the component will disallow the highlighting of the listItem to give the visual cue?
Thank you.
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How to enable/disable the input fields based on the data entered in the web dynpro application abap? If the user enters data in one input field then only the next input field should be enabled else it should be in disabled state. Please guide.
Hi,
Try this code.
First create a attribute with the name readonly of type wdy_boolean and bind it read_only property of input field of which is you want to enable or disable.
Next go to Init method.
Set the readonly value as 'X'.
DATA lo_el_context TYPE REF TO if_wd_context_element.
DATA ls_context TYPE wd_this->element_context.
DATA lv_visible TYPE wd_this->element_context-visible.
* get element via lead selection
lo_el_context = wd_context->get_element( ).
* @TODO handle not set lead selection
IF lo_el_context IS INITIAL.
ENDIF.
* @TODO fill attribute
* lv_visible = 1.
* set single attribute
lo_el_context->set_attribute(
name = `READONLY`
value = 'X').
After that Go to the Action ENTER.
First read the input field ( first input field, which is value entered field) , next give a condition
if input value is not initial then set the readonly value is ' '.
DATA lo_nd_input TYPE REF TO if_wd_context_node.
DATA lo_el_input TYPE REF TO if_wd_context_element.
DATA ls_input TYPE wd_this->element_input.
DATA lv_vbeln TYPE wd_this->element_input-vbeln.
* navigate from <CONTEXT> to <INPUT> via lead selection
lo_nd_input = wd_context->get_child_node( name = wd_this->wdctx_input ).
* @TODO handle non existant child
* IF lo_nd_input IS INITIAL.
* ENDIF.
* get element via lead selection
lo_el_input = lo_nd_input->get_element( ).
* @TODO handle not set lead selection
IF lo_el_input IS INITIAL.
ENDIF.
* get single attribute
lo_el_input->get_attribute(
EXPORTING
name = `VBELN`
IMPORTING
value = lv_vbeln ).
if lv_vbeln IS not INITIAL.
DATA lo_el_context TYPE REF TO if_wd_context_element.
DATA ls_context TYPE wd_this->element_context.
DATA lv_visible TYPE wd_this->element_context-visible.
* get element via lead selection
lo_el_context = wd_context->get_element( ).
* @TODO handle not set lead selection
IF lo_el_context IS INITIAL.
ENDIF.
* @TODO fill attribute
* lv_visible = 1.
* set single attribute
lo_el_context->set_attribute(
name = `READONLY`
value = ' ' ). -
How to enable /disable the row in ALV?
Hi Experts,
I have gone through some threads on this but I did not find useful to my requirement.
My requirement is:
Consider two columns : one is set delete column (a button) and another editable field.
When the user presses on set delete button. The editable field should be disabled and it should be enabled whenever the user presses the button again.
Kindly let me know the solution.
Thanks.Hi,
As i am also new to web dynpro abap. I found it a gud thing to learn about ALV grid.
So, I tried doing it like that and found that its not at all difficult.
Here is the procedure that i followed.
1. Create a context node with two attribute from any table structure and one attribute of type wdy_boolean for controlling the
enable property of input field.
2. i used the supply function to fill the node. Here is the code for the same.
data lt_dealer type wd_this->Elements_zdealer. "My node name is zdealer
DATA ls_dealer LIKE LINE OF lt_dealer.
select * from zdealer into corresponding fields of table lt_dealer.
loop at lt_dealer into ls_dealer.
ls_dealer-enable = abap_true. "to enable all the fields initially
modify lt_dealer from ls_dealer.
endloop.
node->bind_table( lt_dealer ).
3. create view container UIelment in the view and embed table view of the ALV used comp.
4. add interface controller of SALV_WD_TABLE to the used controller in the view and also add comp controller of our
local comp to the used controller list of interface contrl of Used comp. And then map the data node to the node we have filled in
the supply function.
5. go to the wddoinit method to configure the ALV grid. means adding button and input field and binding the enable property of
input field. Here is the code for the same.
data lo_cmp_usage type ref to if_wd_component_usage.
lo_cmp_usage = wd_this->wd_cpuse_alv( ).
if lo_cmp_usage->has_active_component( ) is initial.
lo_cmp_usage->create_component( ).
endif.
DATA lo_INTERFACECONTROLLER TYPE REF TO IWCI_SALV_WD_TABLE .
lo_INTERFACECONTROLLER = wd_this->wd_cpifc_alv( ).
DATA lo_value TYPE ref to cl_salv_wd_config_table.
lo_value = lo_interfacecontroller->get_model(
lo_value->IF_SALV_WD_TABLE_SETTINGS~SET_CELL_ACTION_EVENT_ENABLED( abap_true ).
lo_value->IF_SALV_WD_TABLE_SETTINGS~SET_READ_ONLY( ABAP_FALSE ).
data btn type ref to cl_salv_wd_uie_button.
data inp type ref to cl_salv_wd_uie_input_field.
data col1 type ref to cl_salv_wd_column.
data col type ref to cl_salv_wd_column.
data col2 type ref to cl_salv_wd_column.
call method lo_value->IF_SALV_WD_COLUMN_SETTINGS~GET_COLUMN
exporting
id = 'NAME' "col name is NAME (col with button)
receiving
value = col.
call method lo_value->IF_SALV_WD_COLUMN_SETTINGS~GET_COLUMN
exporting
id = 'LOCATION' "col name is LOCATION (col with input field)
receiving
value = col1.
call method lo_value->IF_SALV_WD_COLUMN_SETTINGS~GET_COLUMN
exporting
id = 'ENABLE' "this col is used to control the enable property of input field and we will make it invisible.
receiving
value = col2.
create object btn.
CREATE OBJECT INP
EXPORTING
VALUE_FIELDNAME = 'LOCATION'.
inp->set_enabled_fieldname( 'ENABLE' ).
COL1->SET_CELL_EDITOR( INP ).
btn->SET_TEXT_FIELDNAME( 'NAME' ).
col->set_cell_editor( btn ).
col2->set_visible( '01' ). " making the enable col invisible
Now you need to create one eventhanlder for the action of cell action.
for this create an eventhandler and then even col there select ON_CELL_ACTION for the inerface cntrl of ALV.
now write the code in this eventhandler for enabling or disabling the input field after checking the current value and
row number from which the button was clicked. code for the same.
DATA lo_INTERFACECONTROLLER TYPE REF TO IWCI_SALV_WD_TABLE .
lo_INTERFACECONTROLLER = wd_this->wd_cpifc_alv( ).
DATA lo_value TYPE ref to cl_salv_wd_config_table.
lo_value = lo_interfacecontroller->get_model(
data inp type ref to cl_salv_wd_uie_input_field.
data col1 type ref to cl_salv_wd_column.
data str type string.
str = R_PARAM->COLUMN.
data indx type i.
indx = r_param->index. " this will get the row number
DATA lo_nd_zdealer TYPE REF TO if_wd_context_node.
DATA lo_el_zdealer TYPE REF TO if_wd_context_element.
DATA ls_zdealer TYPE wd_this->element_zdealer.
DATA lv_value LIKE ls_zdealer-enable.
* navigate from <CONTEXT> to <ZDEALER> via lead selection
lo_nd_zdealer = wd_context->get_child_node( name = wd_this->wdctx_zdealer ).
lo_el_zdealer = lo_nd_zdealer->get_element( index = indx ). " get the corresponding element.
lo_el_zdealer->get_attribute(
EXPORTING
name = `ENABLE`
importing
value = lv_value ).
IF str EQ 'NAME'.
if lv_value eq abap_true.
lo_el_zdealer->set_attribute(
EXPORTING
name = `ENABLE`
value = abap_false ).
else.
lo_el_zdealer->set_attribute(
EXPORTING
name = `ENABLE`
value = abap_true ).
endif.
ENDIF.
this will solve it.
Thanks and Regards,
Sarbjeet singh -
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If you find this post helpful, please show your appreciation by clicking the Kudos star at the left. If it provides you the solution, please click on the GREEN Accept as Solution button at below -
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Best Regards,
Karthik
Message was edited by:
Karthik V Setty -
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