Navigation-Button only once available

[Former Member]

Hi all,

I´m working with MI 2.5 SP 15.

My device is a Symbol MC9060-G.

I have developed my own application but I´m using the standard project from the NWDS.

For navigation I´m using following code:

if (eventName.equals(EVENT_PAGEDOWN))

{

if (start_index + MAX_TABLE_ROWS < tcp.getRowsInDataset())

start_index = start_index + MAX_TABLE_ROWS;

nav = true;

}

I´m able to push the button once on the device (with the pen on the display), but if I push it a second time, nothing happens. I have to refresh the page and then the button works again.

May it be a problem of the Internet Explorer?

Does anyone have an idea how to solve the problem?

Thanks a lot,

Barbara

[Former Member · Accepted solution]

hello barbara,

>I´m able to push the button once on the device (with the

>pen on the display), but if I push it a second time,

>nothing happens. I have to refresh the page and then the

>button works again.

could you please elaborate more?

do you mean:

1)clicking on the button the second time while

the internet explorer is still posting the request for

your first click?

2) you first click on the button then the page was

properly shown. then on your second click, the page

needs to be refreshed?

for 1, this is sometimes a problem in some devices where

in the button remains clickable while the request for the

first click is still under-process.

for 2, this is the caching of PIE. that when you push

back button of PIE, sometimes that page is not updated.

and you need to refresh it.

regards

jo

[Former Member]

Hi Barbara,

What is the operating system on that Symbol device,

and does the application work fine on a laptop

(win32) machine?

Habe you checked the trace file if there are any errors showing?

Whats the rest of the code in method checkNavigationEvents() do you reset the nav to false.

Thanks,

Wael Aoudi

[Former Member]

Hi,

the OS is Microsoft Pocket PC Version 4.20.0 (Build 14503) and the application works fine on my PC.

The trace file doesn´t show any errors.

The method looks like this:

private boolean checkNavigationEvents(

String eventName,

HttpServletRequest request)

{

boolean nav = false;

// Checking for navigation events

// First Page

if (eventName.equals(EVENT_FIRSTPAGE)) {

start_index = 0;

nav = true;

}

// Last Page

if (eventName.equals(EVENT_LASTPAGE)) {

start_index =((tcp.getRowsInDataset() -1) /MAX_TABLE_ROWS)

• MAX_TABLE_ROWS;

nav = true;

}

if (eventName.equals(EVENT_PAGEUP)) {

if (start_index >= MAX_TABLE_ROWS)

start_index = start_index - MAX_TABLE_ROWS;

nav = true;

}

if (eventName.equals(EVENT_PAGEDOWN)) {

if (start_index + MAX_TABLE_ROWS < tcp.getRowsInDataset())

start_index = start_index + MAX_TABLE_ROWS;

nav = true;

}

// The "input" object with type = image in menu.jsp delivers the eventname with .x and .y appended to it

// So we check the beginning of the eventname.

if (eventName.startsWith(EVENT_GOTOPAGE)) {

String inputField = (String) request.getParameter("GOTO_PAGE");

int number = Integer.parseInt(inputField);

setCurrenPage(number);

nav = true;

}

return nav;

}

Thanks,

Barbara