busyDialog responds to slow

[Former Member]

Hi,

I have a sap.m.BusyDialog coupled to my odatamodel using the 'attachRequestSent' method.

var oModel = new sap.ui.model.odata.ODataModel(

                                sServiceUrl, false);

oModel.attachRequestSent(function() {

      busyDialog.open();

});

oModel.attachRequestCompleted(function() {

      busyDialog.close();

});

The dialog shows up to late, when the new data is almost loaded. I want the busydialog to pop up right at the moment when I press the button.

Anyone who can help me?

Kind regards,

RW

[jmoors · Accepted solution]

Have you tried moving the open method into your button event?

The RequestSent event is only fired once the data request is made, so depending on when you create the model it could be loading the metadata etc. before you display the busy dialog?

Regards,

Jason

[Former Member · Accepted solution]

Hi,

Yes I tried that:

var feeder = new sap.ui.ux3.Feeder("Feeder", {

                            submit : function(){

                                busy.open(0);

                                oController.sendMessage();

                            }

});

If I would delete this line "oController.sendMessage();", the busy dialog opens immediatly, how it should be.

Kind regards,

RW

[former_member189945 · Accepted solution]

What if you wrap sendMessage into setTimeout?

setTimeout(function() { oController.sendMessage(); }, 0);

Regards,

Kimmo

[Former Member · Accepted solution]

Hi,

Looks like it's working Thanks Kimmo!

Robbe

[former_member189945 · Accepted solution]

Glad that was helpful.

Here's a link to Stackoverflow explaining setTimeout with 0 delay:

http://stackoverflow.com/questions/779379/why-is-settimeoutfn-0-sometimes-useful

Regards,

Kimmo

[Former Member · Accepted solution]

I was wrong, something went wrong with my gateway call.

[former_member189945 · Accepted solution]

Just to test, does it work if you increase the setTimeout delay from 0 -> 2000?

Regards,

Kimmo

[Former Member · Accepted solution]

Hi Kimmo,

It works if I increase the delay. BUT: now all lines are concatenated, so it seems like the getMultiLineText function doesn't work anymore. Any idea why?

Regards,

RW

[former_member189945 · Accepted solution]

Could you post the code of getMultiLineText and also code from where it is called?

Regards,

Kimmo

[Former Member · Accepted solution]

It work now. Thanks again Kimmo

[former_member189945 · Accepted solution]

OK, good that it's working now.

Note: setTimeout is not be optimal solution as there is still a possibility for a "race condition" where even 2000 milliseconds is not enough.

Regards,

Kimmo

[former_member189945]

Hi Robbe,

I'm more familiar with JSONModel but does it open immediately if you open the busyDialog before initializing ODataModel?

busyDialog.open();

var oModel = new sap.ui.model.odata.ODataModel(

                                sServiceUrl, false);

oModel.attachRequestCompleted(function() {

      busyDialog.close();

});

Of course, then you would have to remember to open the dialog every time a request is sent.

Regards,

Kimmo

[Former Member]

Hi Kimmo,

I just tried it with no success... Anyways thanks for the suggestion.

Kind regards,

RW