Bugs item #814462, was opened at 2003-09-29 09:09
Message generated for change (Tracker Item Submitted) made by Item Submitter
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https://sourceforge.net/tracker/?func=detail&atid=536613&aid=814462&group_id=73068
Category: main tag library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: andy pruitt (rapruitt)
Assigned to: Nobody/Anonymous (nobody)
Summary: column JSP body should not execute if the list is empty
Initial Comment:
The body of a display:column should not execute when
the list is empty. This is forcing is null checks
whenever the page author uses the implicit row object;
this is very counterintuitive and cluttered.
Something as simple as:
<display:table id="d" name="all" >
<display:column><%=d.toString()%></display:column>
</display:table>
Has to be rewritten with a null check?
<display:table id="d" name="all" >
<display:column>
<%=( d != null ) ? d.toString() : "" %></display:column>
</display:table>
Uggh.
Adding something like:
public int doStartTag() throws JspException {
TableTag lTableTag = (TableTag)
findAncestorWithClass(this, TableTag.class);
if ( tableTag.getViewableData().isEmpty() ){
return SKIP_BODY;
}
}
to ColumnTag should do the trick.
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