fileupload - web dynpro abap - sap library

7/24/2019 FileUpload - Web Dynpro ABAP - SAP Library

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FileUpload

Use

You can use the FileUpload UI element to upload files from the client to the server. The UI element

appears with an InputField, in which the directory path and the file name appear, and a Button for

searching for the file.

Caution

Note that you must always specify the fully qualified path for a FileUpload UI element.Therefore,

you cannot specify any URLs.

More information: http://support.microsoft.com/kb/892442/en-us

Technical Browser Details Beyond the Control of WDA

Due to browser restrictions that are unrelated to Web Dynpro ABAP, the previously entered data path

might disappear when a FileUpload UI element is clicked. In newer versions of the browser, it is

therefore not possible to enter the file name in the entry field. The field always remains empty.Neither

are any potential restrictions shown, for example, file names or file name extensions. Therefore in new

browser versions the file name can only be selected using the Browse... button. You cannot enter the

file name manually (using the keyboard or copy and paste functions), nor can the file name be set by the

back end (directly or using context binding).

For more details, read the security information in Internet Explorer 6 about handling .

For security reasons, the browser only accepts absolute paths or a path selection using the Browse .

switch. If the path name is incorrect, the browser will not even forward the request.

Procedure

There is no action available to identify a FileUpload. Generally we recommend you use a dedicated

screen or popup for the upload, since an upload is triggered by every user interaction requiring a

roundtrip, for example scrolling through a table. This makes a roundtrip necessary, which may irritate the

user.

The Best-Run Businesses Run SAP

Technology Platform SAP NetWeaver 7.3
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Check with every action whether data has been downloaded by reading the data from the context.

The delete the data immediately from the context.Otherwise the file will be kept in the memory until the

context is deleted or a new upload is triggered.

Note

Note also the Security Notes for FileUpload UI Elements .

When copying from XSTRING to XSTRING no copy of the data is made due to ABAP string sharing. A

copy is not created until the data is modified in one of the XSTRINGs.

Implementation Details

Runtime Class CL_WD_FILE_UPLOAD

Name Type Initial Value Bindable

ID STRING (automatic) No

activateAccessKey WDY_BOOLEAN false No

contextMenuBehaviour WDUI_CONTEXT_MENU_BE

HAVIOUR

inherit No

contextMenuId WDY_MD_UI_ELEMENT_RE

FERENCE

No

data XSTRING Yes

enabled WDY_BOOLEAN true Yes

explanation Translatable text No

fileName STRING Yes

mimeType STRING Yes

state WDUI_STATE normal Yes

textDirection WDUI_TEXT_DIRECTION inherit Yes

tooltip Translatable text Yes

visible WDUI_VISIBILITY visible Yes

width STRING Yes

Other properties that can be inherited are defined in the related higher-level classes. The related UI

elements are:

UIElement

ContextMenuProvider

ViewElement

Acc essibilit y
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To enable the development of accessibleapplications the property label is checked during the syntax

check.

If no label has been set, and no descriptive text has been specified for the appropriate bound context

element in the ABAP Dictionary, the property tooltip is checked.

Dynamic Programming

For dynamic programming, the same properties, events and aggregations are available as in the View

Designer.But note that the spelling format and use of upper/lower case is different.

View Designer Name Runtime Name Type

activateAccessKey ACTIVATE_ACCESS_KEY WDY_BOOLEAN

contextMenuBehaviour CONTEXT_MENU_BEHAVIOUR WDUI_CONTEXT_MENU_BEHAVIOUR

contextMenuBehaviour:

inherit

CL_WD_FILE_UPLOAD=>E_CONTEX

T_MENU_BEHAVIOUR-INHERIT


provide


T_MENU_BEHAVIOUR-PROVIDE


suppress


T_MENU_BEHAVIOUR-SUPPRESS

contextMenuId CONTEXT_MENU_ID WDY_MD_UI_ELEMENT_REFERENCE

data DATA XSTRING

enabled ENABLED WDY_BOOLEAN

explanation EXPLANATION WDY_MD_TRANSLATABLE_TEXT

fileName FILE_NAME STRING

mimeType MIME_TYPE STRING

state STATE WDUI_STATE

state: normal CL_WD_FILE_UPLOAD=>E_STATE-

NORMAL

state: required CL_WD_FILE_UPLOAD=>E_STATE-

REQUIRED

textDirection TEXT_DIRECTION WDUI_TEXT_DIRECTION

textDirection: inherit CL_WD_FILE_UPLOAD=>E_TEXT_D

IRECTION-INHERIT

textDirection: ltr CL_WD_FILE_UPLOAD=>E_TEXT_D

IRECTION-LTR

textDirection: rtl CL_WD_FILE_UPLOAD=>E_TEXT_D

IRECTION-RTL

tooltip TOOLTIP WDY_MD_TRANSLATABLE_TEXT

visible VISIBLE WDUI_VISIBILITY
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visible: none CL_WD_FILE_UPLOAD=>E_VISIBL

E-NONE

visible: visible CL_WD_FILE_UPLOAD=>E_VISIBL

E-VISIBLE

width WIDTH STRING

Example

For test purposes you can find examples of this interface element in the system in the Web Dynpro

application WDR_TEST_UI_ELEMENTS, and in the component WDR_TEST_EVENTS in the FileUpload

view.

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fileupload - web dynpro abap - sap library

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