Android Question List view does not show in the layout

[Fayez Boulos]

Sorry guys,
It looks like a trivial question, but I cannot resolve it... Please help

I have a list view in a simple layout. It is supposed to be populated by values from the database. After looping through the recordset successfully, it does not show in the layout at all as if its visible property is false. Here is the code

    Dim sf1 As JdbcResultSet = Starter.RemoteSQL1.ExecQuery2("exec up_read_hotel_stay ?,?", Array(Starter.G_Company,Starter.G_PassID))

    Dim theStayPeriod As String
    Do While sf1.NextRow
        theStayPeriod="From " & sf1.GetString("period_start") &  " To " &  sf1.GetString("period_end")
        lstStay.AddTwoLines(sf1.GetString("hotel_name"), theStayPeriod)
    Loop
    sf1.close

The resultset has 2 records and contains no nulls, and the expression thestayperiod has a value. i tried even to use AddSingleLine method with a hardcoded value... no success... What Am I missing, please help. Thanks

 

[DonManfred]

What Am I missing

Uploading the project which shows the issue. Noone can help you with the infos you provided.

 

[klaus]

What are the colors of the ListView and the text?
If they are the same you won't see anything.

 

[LucaMs]

... or:

1 - there is a Panel (or other Views) over your ListView
2 - the ListView height is not enough
3 - the Listview is out of screen (log lstStay.Left)
(4 - no records have actually been read (add a log command to check the theStayPeriod value))

The resultset has 2 records and contains no nulls, and the expression thestayperiod has a value.

 

[Fayez Boulos]

Thank you guys for the help... Here is what I did:
1- I changed the background color
2- I increased the size (width and height)
3- I even harcoded the value of thestayperiod
4- I did not need to log (lstStay.left) because it is showing visually with the new color)
5- I clicked "Bring to Front" in the designer for the Listview
6- I added the log in the loop. It indicates the correct values as expected (No Nulls)

Attached are 3 files:
1- Screenshot of the designer
2- Screenshot from the Phone
3- Screenshot of the troubled code and the log

It is weird... I must be missing something.. Please help. Thanks

 

[klaus]

You should post your project or a small one showing the problem.

 

[Fayez Boulos]

Attached is a summarized project zip file.
To login use any number in the User ID and any name in User Name.
After login, The next page is the troubled one.... Obviously, I removed access to the database... You will see the listview in blue empty. Thank you guys for the help.

 

[LucaMs]

Comments to the project you attached.

You fill the lstStay with 2 items in LoadSummaryInfo:

lstStay.AddTwoLines("Sheraton Hotel", theStayPeriod) ' line 487

lstStay.AddTwoLines("Hilton Hotel", theStayPeriod) ' line 492

Then you remove all views from scrollView1, same routine, at line 502.
Line 513 calls ShowSummaryInfo, which again removes all that views and loads a layout, "summaryinfo", which contains lstStay, and now this is empty, obviously.

 

[Fayez Boulos]

LocasMs
Thank you very much... you solved the problem... I appreciate it.