Please help: "On click" or "onDraw" handler issues

Question

Hello from a frustrated beginner,

I have a "find" datagrid which is working well.  I also have an "identify" grid with muliple tabs for identifying such things as school districts, precincts, and etc which functions by first clicking a "select" button.  The Identify portion works well by itself. It also works the the first time it is used with the selected record of the "find" datagrid  but thereafter it causes problems.

It would be awesome if the two could be used interchangeably. Could someone help me sort out my code and the "On click" or "On draw' handler?
Or perhaps there is a better way?

Thank you for any help or suggestions,

Dorothea

Find_Identify.zip

DorotheaKnigge · Answer

Hi Steve,

I have since changed my project from using an identify grid to using an Identify info window with tabs.

I did, however, discover that on starting the identify function I was clearing the graphics of my find function which of course kept me from selecting another grid row and zooming to it.  I can't believe I didn't catch that earlier.

Thank you again:)

Dorothea

DorotheaKnigge · Answer

Hi Steve,

Thank you for taking a look at this. At this point I don't think I can put it in a public place but I will check again with IT.

I will try debugging with Firebug and let you know what I discover.

Please let me know if you come up with other possible ideas on how to solve the problem.

Dorothea

StephenLead · Answer

Hi Dorothea,

It's really hard (for me, at least!) to debug this properly without being able to run it. Is there any chance you can put this on a public site so we can test it?However, if I use the identify "SELECT" button after zooming to a grid row I can no longer zoom to another grid row and the "zoom in and out" functions suffer.

It sounds like there's a problem with the event listeners, which are getting out of sync or otherwise failing. This would (probably) be easier to debug by stepping through it.

If you haven't already done so, try installing Firefox and Firebug, which will allow you to step through your code to ascertain where the problem lies.

Try putting a breakpoint inside the routine you suspect is causing the problem, and step through it to see which line throws the error.I know I have a problem with the 
//identify portion
function onDrawEnd(extent){
  toolBar.deactivate();
  executeIdentifyTask(extent);
}

and the onClick handler. I have tried changing the onDrawEnd references to onClick but it didn't work. Perhaps I need to do 
away with the "SELECT" function altogether? What would be the best way?

If you step into executeIdentifyTask in this case, you'll probably see that extent is a rectangle, whereas this function is expecting a point. You'll need to adjust your logic so that you're generating a point with which to identify.

Not being able to run your code, I don't understand why you're running the identify after the drawing ends, but hopefully since you understand what you're trying to do, this will make sense.

Good luck,
Steve