Validating FIle Upload UI

[Former Member]

Hi,

I have a file upload ui element in WD java which is bound to iwdresource attribute of name resource. I have an upload button. WHen i click on upload when no file is uploaded, I must show an error message telling "Please select a file for upload". Can anyone assist mew with the code?? Also I want the resource name to be set in my file input ui element like this

[Former Member · Accepted solution]

Hi Sakshi,

Check  resource is equal to null in side upload action.

if it is null then show message.

Use following code.

if(wdContext.currentContextElement().getResource==null){

      wdComponentAPI.getMessageManager().reportException("Please select file.");

}else{

}

Thanks,

Moreshwar

[Former Member · Accepted solution]

Hi moreshwar,

Thanks for the reply and it is working fine. Can you also tell how to set the name of the file uploaded in that fileinput UI element???

[Former Member · Accepted solution]

Dear Sakthi,

You can set the file name in  file input UI element( IPrivateFileUploadView.IContextElemen) like this.

public void onActionUploadFile(

com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent) {

//@@begin onActionUploadFile(ServerEvent)

IPrivateFileUploadView.IContextElement element = wdContext.currentContextElement();

...

// if a file in the FileUpload field exists

if (element.getFileResource() != null) {

IWDResource resource = element.getFileResource();

...

// set context attribute 'fileName' .

element.setFileName(resource.getResourceName());

...}

Read following document for better understanding.

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/00062266-3aa9-2910-d485-f1088c3a4...

Thanks & Regards,

Patralekha

[govardan_raj · Accepted solution]

hi Sakthi,

you can get the file name by using the

wdContext.currentFileUploadElement().getResource().getResourceName();

I dont think you can set name of a file being uploaded which already has a name, but u can change the name by creating another file .

use java code to create  a new file 'with new name with data from the file that you upload, and give a name to the file that you desire.

can u just breifly explain what exactly you wanted to achieve...

like just uploading file or upload file and store this file at other location with new name ?

Regards

Govardan