B4A Library Grid/Table and ListView Library

fatman · Apr 14, 2014

Hi Stefano,

is it possible to colorize single cells?

Would be glad to seeing that feature.

Thx Fatman

stefanobusetto · Apr 16, 2014

Now it's not possible.
I've already thought about the problem.
It can be solved either with a list of colors for the cells
or with an OnDrawCell event.
I've not yet added the feature because i fear a loss of
responsiveness (when the grill scrolls).
I'll do some tests and may be i'll add in the next version.
Thanks for the suggestion anyway.

fatman · Apr 16, 2014

Hi Stefano,

thank you very much for your answer.
Don´t mind if this is not possible.
Anyway I will for the next version of your lib.

Fatman

TFD · Apr 26, 2014

Hi Stefan,

I hava a problem with the RowsDelete function. When I use this, the rows get deleted, but when I want to populate the grid again, nothing happens.

If I use Rowdelete(i) and delete all the rows seperately, then everything works as expected and I can fill the grid again.
I use Version 2.52.

Dennis

stefanobusetto · Apr 27, 2014

I've tried to reproduce the error starting form the xnGridSample
app i've posted with the xnGrid but i've not been able.
Obviously i miss something.
May you post a sample code please?

Harris · May 16, 2014

stefanobusetto

What a treat!

Now even easier to use with everything you have done... Effortless and looks great. Hort and Vert scroll are smooth...

Question: Don't quite fully understand the following methods, maybe you could point me to the definitions?

CursorAppend
CursorAppendRow
CursorInsert
CursorInsertRow

Thanks so much again

Harris

stefanobusetto · May 17, 2014

Hi
nice to hear you again.
The methods add rows to the grid.
CursorAppendRow add one row getting the values from the cursor passed as a parameter
CursorInsertRow is the same but you can specify the row of the grid
CursorAppend and CursorInsert loop the cursor adding multiple rows to the gird
i hope i've been clear

Guillermo Sanzeri · May 22, 2014

stefanobusetto.
I'm trying to respond to the event grid LongClick but does not work.
Could you give an example?

bl4ck4nt · May 23, 2014

@stefanobusetto
I have a little problem, if I put xngrid in panel, data released can not seem everything but when placed in the activity may seem all the data. because I want put xngrid in panel in tabhost.
where should I fix or problem solving about this ...?thanx
@Guillermo Sanzeri
You can look example in first post, filename is xnGridSample200beta.zip

stefanobusetto · May 25, 2014

it's not perfectly clear the problem you experience
i've this code working

B4X:

    If xngTest.IsInitialized = False Then   
      Panel1.Initialize("p1")
      Panel2.Initialize("p2")
      Panel3.Initialize("p3")
      TabHost1.Initialize("th")
      Activity.AddView(TabHost1, 0dip, 0dip, 100%x, 100%y)
   
      TabHost1.AddTab2("Color", Panel1)
      TabHost1.AddTab2("Animal", Panel2)
     

        xngTest.Initialize("xngTest")
        xngTest.FastScroll = True : xngTest.Multiselect = False
        xngTest.RowHeight = 23dip : xngTest.HeaderHeight = 23dip
        xngTest.HeaderTextSize = 14 : xngTest.RowTextSize = 14
        xngTest.HeaderTextColor = Colors.Yellow : xngTest.RowTextColor = Colors.Yellow
        xngTest.SelectedOddColor = Colors.Green : xngTest.SelectedEvenColor = Colors.Magenta
        ' set column
        Dim tCols(4) As xnGridCol
        tCols(0).Initialize2("Cek", "cek", 10%x, Gravity.CENTER)
        xngTest.ColAppend(tCols(0))
        tCols(1).Initialize2("Lokasi", "lokasi", 30%x, Gravity.CENTER)
        xngTest.ColAppend(tCols(1))
        tCols(2).Initialize2("Latitude", "latitude", 25%x, Gravity.CENTER)
        xngTest.ColAppend(tCols(2))
        tCols(3).Initialize2("Longitude", "longitude", 25%x, Gravity.CENTER)
        xngTest.ColAppend(tCols(3))
        xngTest.GridWidth = 1dip
        Panel1.AddView(xngTest, 0dip, 0dip, 100%x, 100%y)
    End If
    For i = 1 To 1000
        xngTest.RowAppend(Array As String(i, i+1, i+2, i+3))
    Next
    xngTest.GridCreate2(False)

i was not able to open your bal file because a version issue

bl4ck4nt · May 26, 2014

I found why that problem happend

B4X:

Panel1.AddView(xngTest, 0dip, 0dip, 100%x, 100%y)

must be

B4X:

Panel1.AddView(xngTest, 0dip, 0dip, Panel1.Width, Panel1.Height)

ok problem solved

ok thanx @stefanobusetto

incendio · Jun 4, 2014

Hi guys,
Anyone has try the grid with large SQL data, about 20000 rows by 7 columns.
How long does it takes to load all data?

stefanobusetto · Jun 7, 2014

never loaded so many records

the grid first loads the data in memory
then displays the data
1) i use a java list to store the data
so the load time of a single record is always the same
no matter if it is the first loaded or the 1.000.000th
2) the display part draws only the visible rows
and the widgets are reused for performance
(very little code of my own - thanks to the google developers )
so the refresh time does not depend from the
number of records

no of much help but ...

stefanobusetto · Jun 8, 2014

the xnGridSample app running on a samgung yp-g70
CPU 1000 MHz
RAM 512MB
Android 2.3
takes 1 second to load and display 20000 rows x 4 columns
filing the grid with a loop

anyway if i may suggest
i'll not load so much data in a grid
it's not very easy for a user to scroll such
a huge quantity of data to find what he's searching

stefanobusetto · Jun 15, 2014

xnGrid / FlexibleGrid integration process hypothesis

Ankerdata · Aug 8, 2014

Hi

i have a Question, Is it Possible to Select A row In xnGrid then Get the values only from the Selected Row and Edit the Row that is Selected Or the xnGrid is just for Displaying Records/Report?

Thank You

stefanobusetto · Aug 8, 2014

hi
you can select a row
get the values of the selected row
( you can also set the values )
but the grid is only for displaying

TheMightySwe · Sep 25, 2014

Hi, do you think it's possible to have the Left, Top, Width and Height values on the cell that is _Select or _Long_select or maybe a _Cell_Select event where those values can be read? Or if the Touch coordinates in some way could be accessed?

stefanobusetto · Sep 29, 2014

do you mean the points?

TheMightySwe · Sep 29, 2014

stefanobusetto said:
do you mean the points?

The X and Y coordinates where the cell is on the screen.

B4A Library Grid/Table and ListView Library

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