Xml of Document type, returning from tHMap; best practice to remove empty tags?

[DaveTaylor]

tXmlMap has a checkbox item to remove empty tags; but tHMap (returnning from Mapper) doesn't seem to have this option.

What is the best practice case on a returned Document type from the tHMap, to remove empty tags?

Thanks

[Anonymous]

Hello,

We have redirected your issue to our data mapper expert and then come back to you as soon as possible.

Thank for your time.

Best regards

Sabrina

[Haitao]

Hi,

You can set the structure's element to optional in TDM

If you map the structure like 

with the input

<?xml version="1.0" ?>
<Root>
  <b>
    <c>foo</c>
  </b>
  <b>
    <d>bar</d>
  </b>
</Root>

then the output will be also

<?xml version="1.0" ?>
<Root>
  <b>
    <c>foo</c>
  </b>
  <b>
    <d>bar</d>
  </b>
</Root>

[DaveTaylor]

Thanks for the reply; I do see in the structure; when [Read Only] is selected; the Basic section which contains the option of Mandatory (default).
However, I do not see a way to edit this to be Optional (Nullable) on the basic section.

When I switch from [Read Only] to [Editiable] I do not see any selectable choices reflecting 'Mandatory' anymore; or anywhere to pick 'Optional'.
I do see a nullable checkbox; but that doesn't switch it from Mandatory to Optional.

Question 1) so what am I missing to edit this property to be optional?

Also 
A second question if you don't mind.
When I load a pre-defined xml structure; if a tag has attributes; then structure tree has Tag/Attribute/attribute tag in the tree format.
However, if I manually add a new tag; set it to be of type Xml Attribute; it does show with the Attribute icon; and shows to be an Attribute; but the word 'Attribute' doesn't appear in the tree structure between it and the root node.  Is this ok?  Seems odd.  Is this ok?

[DaveTaylor]

I found the answer to the Mandatory vs Optional; Setting the Occurs to 0 1 did the trick on a non-looping tag.

Still unsure why Attributes is missing from the tree on a added tag/attribute; and if it matters. (screencap above)

[Haitao]

Hi,

When an element's 'Visible Group' is unselected, then it will be disappeared

[DaveTaylor]

What ultimately allowed me to controller mapper elements and attributes; and designate that they would not show if they do not have data; was to set the Occurs Min/Max "Min" value to 0 for any element or attribute; that could have missing data; and if the data is missing; you want to suppress the tag.

Doing the Visible Group toggle didn't help because while it did remove the element completely; if there was data mapped to that element; it was placed in the xml at that point; without a holding element to hold it; and the xml thereafter failed validation.

Using the Occurs Min = 0 is the trick.

Thanks all for your replies.