onRender and Developer Issues

Classic Servoy
1

I’m having an issue in developer with elements that have an onRender event attached.

If I open a form that has elements with an onRender in the developer client and then make any changes to that form in developer I start getting errors in the console and a popup warning.
The error says
“TypeError: Cannot read property “net_ppe” from (C:\Servoy\servoy_workspace6final\stock_tracker\forms\active_op_stock_data.js#18)
at C:\Servoy\servoy_workspace6final\stock_tracker\forms\active_op_stock_data.js:18 (onRender)”

If I take off the onRender events then everything works fine. Sometimes though it gets stuck in a loop and makes me force quit Servoy.

When running just the client the onRender works fine with no errors.

Before I submit a case I was wondering if anyone else had this issue or if it was just something local to my install.

I’m using Servoy 6, Win 7 64-bit and Java 26.

Thanks

2

please submit a case.

3

I am having exactly the same issues with the OnRender event. I am trying to attach a procedure to the form onRender event to do conditional line colouring. Up to this point I have not been able to get this to work. A typical basic fuction is as follows:

function onRender(event) 
{
/** @type {JSRecord<db:/sql1_track_data/rsp_fees>}*/
var rec = event.getRecord()

	if (event.isRecordSelected()) 	{
		event.getRenderable().bgcolor = '#009900';
	} else if (rec.equity >= 100000) {
		event.getRenderable().bgcolor = '#98c6f3';
	} else {
		event.getRenderable().bgcolor = '#8b9eed';
	}
}

The issue is with the record field access. if there is any reference to the record in the function, the error is thrown:

Cannot read property “equity” from (C:\Servoy6_Workspaces\RT_Master_1\Advisor_Services\forms\ViewRelatedAccounts_sin.js#48)

Am I doing something wrong or is there a workaround for this??

Thanks,

Rob.

4

Hi Rob,

for ‘line colouring’ I’d recommend using the CSS.
If you take a look at the sample CSS (this is an option when you create a stylesheet), you will see classes for even/odd/selected.

5

I actually did forget about using CSS for this, but in most cases I am looking for colouring based on some condition based on the data in the line… css is not going to help here and it is when I am trying to reference the ‘current’ record that the issue comes up. It seems onRender on a form is not binding the record being processed so it is not available as expected after the call to event.getRecord().

I have an application where most lists are colour coded to give a quick visual indication of the status of each record, so for this reason I have not been able to migrate to v6… yet.

I certainly will use CSS for any more basic needs though.

Thanks!

Rob.