DTC Navigation Bars

[Guest_imported]

Hello. I'm having a problem getting my DTC nav bar to work correctly. The first time I click the Next button, it moves to the next record; however, after that it continues to bring up that same record.

Any ideas are appreciated.

Thanks,
Rene

 

[MerlinB]

Recordsets usuall navigate via a bookmark. If the table / query has a unique index, then this is sometimes used. Failing this, the whole recordset is used as a 'bookmark'.

If there is no identifying feature in a recordset row, then it is possible for it to continually find the same row - it is not smart enough to know any different.

Alternatively, your page code is changing the 'current row' in some way.

** Try turning on the Trace feature (see top of your asp code).

http://www.websitedesign.co.uk

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(Content Management)

 

[Guest_imported]

Hi Merlin. Thanks for the response. Can you explain to me some more about the Trace feature? I looked for it, but couldn't find it.

Thanks,
Rene

 

[MerlinB]

When you use the Script Object Model for an ASP page, which you would need for most DTCs, it adds the following code to your page:

<%@ Language=VBScript %>
<SCRIPT id=&quot;DebugDirectives&quot; runat=&quot;server&quot; language=&quot;javascript&quot;>
// Set these to true to enable debugging or tracing
@set @debug=false
@set @trace=false
</SCRIPT>

The debug flag is rarely useful. But turn on the trace flag:
@set @trace=true

and then view the page! You can add your own trace messages if you wish:

@if (@trace_events)
thisPage._traceEvent('object/file name','event_name');
@end

or

@if (@trace_warnings)
thisPage._traceWarning('message','filname.asp','method name');
@end


In VBScript you cannot call methods starting with an underscore character (_traceEvent or _traceWarnings). So you will have to put your trace calls in JScript instead.

I have altered the trace code in PM.ASP to print the time - which can be useful when some pages seem to 'stall'...

var m_pmTraceTime = new Date;

function _SOM__traceEvent(strObject,strEvent)
{
if (this._trace_on)
{
var dtNow = new Date(); //add time to trace
output = '<br><font color=blue><b>EVENT TRACE: </b> </font>';
output += '<b>' + strObject + '</b> fired <b>' + strEvent + '</b> event. '
output += dtNow.toLocaleString();
var iTimeDiff = Math.round((dtNow.getTime() - m_pmTraceTime.getTime())/1000);
if (iTimeDiff > 0)
output += ' <b>+' + iTimeDiff + '</b>';
Response.Write(output);
m_pmTraceTime = dtNow;
}
}

http://www.websitedesign.co.uk

http://www.zentext.com

(Content Management)

 

[Guest_imported]

Thanks for the explanation on Trace. I have begun using it, and it's definetly helping.


Rene