>Could you explain this? Make an example?
Nothing exciting ... I am doing a count of the resultSet (outside dbforms)
and setting a hidden html 'position' element. Whenever a user hits 'next' or
'previous' button I decrease or increase 'position' accordingly. When
'position'=0 I don't display NavFirst, NavPrev buttons and when
'position'='dataCount' I don't display NavNext, NavLast buttons. Something
like:
<% int position = StdLib.parseInt(request.getParameter("lastPosition")); %>
<db:dbform tableName="data_table"
maxRows="1"
followUp="<%=updateTableData%>"
redisplayFieldsOnError="true"
autoUpdate="false"
captionResource="true">
<% request.setAttribute("rsv_data_table",rsv_data_table);
int dataCount = StdLib.parseInt(request.getAttribute("dataCount"));
%>
<db:isWebEvent event="navFirst" value="true"><% position=0;
%></db:isWebEvent>
<db:isWebEvent event="navPrev" value="true">
<% position=(position < 0)?0:position-2;position=(position <
0)?0:position; %>
</db:isWebEvent>
<db:isWebEvent event="navNext" value="true"><% position++;
%></db:isWebEvent>
<db:isWebEvent event="navLast" value="true"><% position=(dataCount >
0)?dataCount-2:position; %></db:isWebEvent>
<% request.setAttribute("position", new Integer(position)); %>
<table align="center" border="0">
<tr>
<c:choose>
<c:when test="${!empty rsv_data_table && position > 0}">
<db:isWebEvent event="navFirst" value="false">
<td><db:navFirstButton caption="button.nav.first"
style="width:90"/></td>
</db:isWebEvent>
<td><db:navPrevButton caption="button.nav.previous"
style="width:90"/></td>
</c:when>
</c:choose>
<c:choose>
<c:when test="${!empty rsv_data_table && position < dataCount}">
<td><db:navNextButton caption="button.nav.next"
style="width:90"/></td>
<db:isWebEvent event="navLast" value="false">
<td><db:navLastButton caption="button.nav.last"
style="width:90"/></td>
</db:isWebEvent>
</c:when>
</c:choose>
</tr>
</table>
> -----Original Message-----
> From: Henner Kollmann [SMTP:[EMAIL PROTECTED]]
> Sent: 20 February 2003 10:27
> To: 'J M Okomba'
> Cc: dbf
> Subject: AW: [dbforms] NavFirst, NavPrev,NavNext, NavLast - Buttons
>
>
> >
> >
> > This would be very useful. I have had to manipulate the data
> > retrieved to achieve this, often with inconsistent result.
> Could you explain this? Make an example?
>
> > BTW on a similar note, how can someone do pagination in
> > dbforms. The tag <db:pos /> give position relative to the
> > ResulsetVector. I would like to get the position of the
> > record in the table. If we can get the first and last records
> > can we get the position of other records, and add a tag to
> > display the position?
> Last record is imposible! I added an attribute for the first row in a
> new recordset to build the mentioned.
>
> Position relative to the first row is impossible in the current
> implementation. Shall we discuss the changing of the resultsetvector
> again which was suggested by Luca somtime ago? With this model position
> relative to first row will work.
>
> Regards,
> Henner
>
>
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