B4A Library [Class] Flexible Table

klaus · Jun 30, 2013

This thread will be used by Erel, Melamoud and myself to discuss / post new releases of the Table class.

The table class is a flexible UI component that enable scrollable table like UI, with sortable columns, multiselect rows etc

the table is very efficient, maintaining labels only for visible rows

old thread with details : http://www.b4x.com/forum/additional...view-supports-tables-any-size.html#post110901

The class depend on following libraries:
- StringUtils (standard)
- SQL (standard)
- JavaObject (standard)
- ScrollView2D (additional)

List of major features.
1. scrollable table UI
2. sortable columns
3. select a row, cell or multi select rows
4. callback for selection / click a cell / row
5. callback for long click action
6. read / write to CSV file

Current version --> 3.35 Custom View
Current version --> 1.44 Class

Other complementary routines:

Load data with the Remote Database Connector.

EDIT: LucaMs has written a routine to fill a table with a Remote Database Connector query result see post 182.
The routine hasn't been added into the Class for the reasons explained in post 183.
A sample program can be found HERE.

Code:

B4X:

'load data from a RDC Request
'Result = DBResult object got from a RDC request
'AutomaticWidths  True > set the column widths automaticaly
'Written by LucasMs
Public Sub LoadRDCResult(Result As DBResult, AutomaticWidths As Boolean)
    cAutomaticWidths = AutomaticWidths
    NumberOfColumns = Result.Columns.Size
    innerClearAll(NumberOfColumns)

    Dim Headers(NumberOfColumns) As String
    Dim ColumnWidths(NumberOfColumns) As Int
    Dim HeaderWidths(NumberOfColumns) As Int
    Dim DataWidths(NumberOfColumns) As Int
    Dim col, row As Int
    Dim str As String
    For col = 0 To NumberOfColumns - 1
        Headers(col) = Result.Columns.GetKeyAt(col)
        If AutomaticWidths = False Then
            ColumnWidths(col) = 130dip
            HeaderWidths(col) = 130dip
            DataWidths(col) = 130dip
        Else
            HeaderWidths(col) = cvs.MeasureStringWidth(Headers(col), Typeface.DEFAULT, cTextSize) + 8dip + cLineWidth
            DataWidths(col) = 0

            Dim FieldValue As Object
            For row = 0 To Result.Rows.Size - 1
                Dim Record() As Object = Result.Rows.Get(row)
                FieldValue = Record(col)
                If GetType(FieldValue) = "java.lang.String" Then
                    DataWidths(col) = Max(DataWidths(col), cvs.MeasureStringWidth(str, Typeface.DEFAULT, cTextSize) + 8dip + cLineWidth)
                End If
            Next
            ColumnWidths(col) = Max(HeaderWidths(col), DataWidths(col))
        End If
    Next
    SetHeader(Headers)
    SetColumnsWidths(ColumnWidths)

    For Each Record() As Object In Result.Rows
        Dim R(NumberOfColumns) As String
        Dim FieldV As String
        For col = 0 To NumberOfColumns - 1
            FieldV = Record(col)
            R(col) = FieldV
        Next
        AddRow(R)
    Next
End Sub

This is another routine updated by cimperia in post #392 using a Map for the columns and a List for the rows.

B4X:

'load data from a RDC Request
'A RDC request returns a DBResult object, therefore this method
'could be called as is:
'LoadRDCResult(DBResult.Columns, DBResult.Rows, True)
'AutomaticWidths  True > set the column widths automaticaly
'Written by LucasMs
Public Sub LoadRDCResult(Columns As Map, Rows As List, AutomaticWidths As Boolean)
  cAutomaticWidths = AutomaticWidths
  NumberOfColumns = Columns.Size
  innerClearAll(NumberOfColumns)

  Dim Headers(NumberOfColumns) As String
  Dim ColumnWidths(NumberOfColumns) As Int
  Dim HeaderWidths(NumberOfColumns) As Int
  Dim DataWidths(NumberOfColumns) As Int
  Dim col, row As Int
  Dim str As String
  For col = 0 To NumberOfColumns - 1
    Headers(col) = Columns.GetKeyAt(col)
    If AutomaticWidths = False Then
      ColumnWidths(col) = 130dip
      HeaderWidths(col) = 130dip
      DataWidths(col) = 130dip
    Else
      HeaderWidths(col) = cvs.MeasureStringWidth(Headers(col), Typeface.DEFAULT, cTextSize) + 8dip + cLineWidth
      DataWidths(col) = 0

      Dim FieldValue As Object
      For row = 0 To Rows.Size - 1
        Dim Record() As Object = Rows.Get(row)
        FieldValue = Record(col)
       If GetType(FieldValue) = "java.lang.String" Then
         DataWidths(col) = Max(DataWidths(col), cvs.MeasureStringWidth(str, Typeface.DEFAULT, cTextSize) + 8dip + cLineWidth)
       End If
      Next
      ColumnWidths(col) = Max(HeaderWidths(col), DataWidths(col))
    End If
  Next
  SetHeader(Headers)
  SetColumnsWidths(ColumnWidths)

  For Each Record() As Object In Rows
    Dim R(NumberOfColumns) As String
    Dim FieldV As String
    For col = 0 To NumberOfColumns - 1
      FieldV = Record(col)
      R(col) = FieldV
    Next
    AddRow(R)
  Next
End Sub

Load data from a MSMariaDB database.

Another routine for loading data from a MSMariaDB database can be found in post#727.
Thanks to @Magma.

Updates:
EDIT: 2024.04.21 Version 3.35
Replaced the original sorting functions by new ones kindly provided by forum member RB Smissaert.
Amended first scroll scrolling back to 0
Amended Header with transparent color

EDIT: 2024.01.13 Version 3.33
Changed possible values for DataType
TEXT and NUMBER become T, R and I
Amended problem with column colors
Amended problems with SetHeaderColors and SetHeaderTextColors

Version 3.32
Amended Header and HeaderFirst problem in SaveCSVFromTable
Moved If (lblStatusline... from AddRow to ShowRow

Version 3.31
Added SingleLine property for the Designer
Added StatusLineHeight as a property
Added FastScrollLabelMaxChars as a property

EDIT: 2021.06.28 Version 3.30
Added a check for none numeric values for numeric sorting.

EDIT: 2021.06.28 Version 3.29
Amended problem with column colors
Version 3.28
Added NumberOfColumns in the code
Added TopRowIndex method
Version 3.27
Amended MultiSelect EDIT: 2020.09.02 Version 3.26
Amended problem with sort with remove accents
Amended problem with SetRowColorN
Added SetCellAlignmentColN method
Added SetHeaderAlignmentColN method

EDIT: 2020.08.05 Version 3.24
Amended problem with JumpToRowAndSelect not being selected.
Amended error when setting RowHeight before the table initialized

EDIT: 2020.06.19 Version 3.22
Amended error in the insertRowAt routine.

EDIT: 2020.05.25 Version 3.21
Amended bug with TextSize in fixed columns

EDIT: 2020.05.16 Version 3.20
Added fast scroll feature
Version 3.19
Improved automatic width calculation and hidden columns
Version 3.18
Added a check in RemoveRowColorN to ensure that Row is not out of bounds
Added ShowRow event
Amended automatic width calculations
Amended hidden column width problem

EDIT: 2020.04.21 Version 3.17
Amended HeaderHight problem with fixed columns

EDIT: 2020.04.21 Version 3.16
Amended two errors.

EDIT: 2020.04.14 Version 3.14
Added the methods below
- LoadSQLiteDB4(SQLite As SQL, Query As String, AutomaticWidths As Boolean)
loads SQLite data with data type checking
- LoadSQLiteDB5(SQLite As SQL, Query As String, Values() As String, AutomaticWidths As Boolean).
loads SQLite data with data type checking , similar to LoadSQLiteDB4 but for parametrized queries.
- GetColumnDataTypes As String(), returns an Array with the data type for each column.
- GetColumnDataType(Column As Int) As String, returns the data type of the fiven column.
Added the InnerTotalWidth property, read only.
Added multiple first fiexed columns
Added line colors

EDIT: 2020.03.10 Version 3.10
Amended bug reported HERE

EDIT: 2020.03.06 Version 3.09
Amended bug reported HERE.

EDIT: 2020.02.29 Version 3.08
Amended SetHeaderTypefaces method problem reprted HERE.
Added HeaderTypeface property.

EDIT: 2020.01.08 Version 3.07
Amended bug ShowStatisLine = False property bug.
Added MultiSelect property to Designer properties.
You need to open and close the Designer when you use the new version the first time to make the MultiSelect property active.

EDIT: 2019.12.28 Version 3.06
Amened some bugs

EDIT: 2019.12.25 Version 3.05
Added FirstColumnFixed property which allows to fix the first column.
Attention: You need to open and close the Designer to make the new property active.

EDIT: 2019.11.15 Version 3.04
- Added SelectedRowTextColor and SlectedCellTextColor properties
- Added ZeroSelections property, True > when a selected row is pressed it will be unselected False > it remains selected.

EDIT: 2019.11.12 Version 3.03
- Changed JumpToRowAndSelect(Row As Int, Col As Int) to JumpToRowAndSelect(Col As Int, Row As Int)
- Changed LoadSQLiteDB2 signature. Replaced the possible values from "T", "I", "R" to "TEXT", "NUMBER" for coherence with SetColumnDataTypes.
- Added internal sorting bitmaps, avoids loading the image files into the Files folder.
- Added two new properties: SortBitmapWidth and SortBitmapColor.
- Added SetCustomSortingBitmaps method, which allows to use custom bitmaps instead of the internal ones.
Attention: You need to open and close the Designer to make the new properties active.
Attention: You need to invert the parameters in JumpToRowAndSelect.

EDIT: 2019.07.04 Version 3.02
Amended error reported in post #887

EDIT: 2019.06.26 Version 3.01
Amended SingleLine property setting in the code

EDIT: 2019.04.05 Version 3.00
Amended SetColumnColors and SetTextColors
Removed Reflection library dependency

EDIT: 2018.04.11 Version 2.29
Version 2.27
set the two variables sortedCol and sortingDir to Public instaed of Private
added RemoveAccent routine for sorting with accented characters
Version 2.28
Added SetHeaderTypeFaces
Added SortRemoveAccents property
Version 2.29
Added SaveTableToCSV2 with a user defined separator character

EDIT: 2018.04.11 Version 2.26
added LoadSQLiteDB3 method using SQLExec2 instead of SQLExec
The query can include question marks which will be replaced with the values in the array.

EDIT: 2018.03.27 Version 2.25
amended minor errors
added UpdateCell method

EDIT: 2017.11.19 Version 2.22
improved JumpToRowAndSelect scrolls horizontally to the selected column
improved setHeaderHeight
added padding for status bar Label

EDIT: 2017.06.27 Version 2.19
Replaced DoEvents by Sleep(0)
Asked HERE

EDIT: 2017.06.27 Version 2.19
Replaced DoEvents by Sleep(0)
Asked HERE

EDIT: 2017.05.16 Version 2.18
Amended error reported HERE.

EDIT: 2017.03.09 Version 2.17
Amended error reported HERE.

EDIT: 2017.03.09 Version 2.15
Amended error reported here, Event signatures
#Event: CellClick(col As Int, row As Int)
#Event: CellLongClick(col As Int, row As Int)

EDIT: 2016.12.05 Version 2.14
Added NumberOfColumns and NumberOfRows as Public variables.
Amended error reported here.

EDIT: 2016.12.05 Version 2.13
Amended error reported here.
Added NumberOfColumns as a property for the Designer.

EDIT: 2016.07.30 Version 2.10
Amended error with TextAlignment and HeaderTextAlignment reported in post #606

EDIT: 2016.03.15 Version 2.00
Added CustomView support.
This version can be compiled into a library.
Changes between the previous versions and version 2.00
For a Table added in the Designer, this is new
No need to initialize nor add it onto a parent view
'For a Table added in the Designer, this is new
'No need to initialize nor add it onto a parent view

For a Table added in the code:
The Initialize routine has been splittend into two routines.
New:
Initialize (CallBack As Object, EventName As String)
InitializeTable (vNumberOfColumns As Int, cellAlignement As Int, showStatusL As Boolean)
'Example:
Table1.Initialize(Me, "Table1")
Table1.InitializeTable(5, Gravity.CENTER_HORIZONTAL, True)

Old:
Initialize(CallBack As Object, EventName As String, vNumberOfColumns As Int, cellAlignement As Int, showStatusL As Boolean)
Example:
Table1.Initialize(Me, "Table1", 5, Gravity.CENTER_HORIZONTAL, True)

EDIT: 2015.04.29 Version 1.43
As the modifications in LoadSQLiteDB don't work in all cases I went back.
LoadSQLiteDB as in version 1.40
Added LoadSQLiteDB2 where the column data types must be given.

EDIT: 2015.04.26 Version 1.42
Changed he LoadSQLiteDB routine, version 1.41 didn't work as expected.
The final solution was suggested by cimperia HERE.

EDIT: 2015.04.16 Version 1.41
Changed the LoadSQLiteDB routine according to the error reported in the SQL issue thread
and the SQLite Cursor GetString versus GetDouble thread.
The problem appears with numbers bigger than 999999.
I left version 1.40 in case of problems.
I tested it with a few databases, but I am not sure if it works in all cases.

EDIT: 2015.03.05
Amended bugs reported in posts #383 and #386
Added SetAutomaticWidths routine

EDIT: 2015.02.19
Amended the problem alignment reported in post # 378

EDIT: 2015.02.13
Amended the problem of rows not shown reported in post # 371

EDIT: 2015.01.09
Added header aligments

EDIT: 2014.08.14
Added HeaderHeight property
Amended RowColor problem reported in post #260

EDIT: 2014.08.10
Added SortColumn property asked in post #266
Added UseColumnColors ColumnColors and HeaderColors propeties

EDIT: 2014.05.10 Added RowHeight as a property

Screenshot:

RB Smissaert · Jan 28, 2024

RB Smissaert said:
Handled this now in a better way as commenting out these 2 lines:

B4X:

If IsVisible Then 'SV2_ScrollChanged(0, 0) Log("innerClearAll") 'SVF_ScrollChanged(0) End If

at bottom of Sub innerClearAll, caused rare problems with the table display in that some rows remained
grey.

Instead only commenting out this line in innerClearAll:

B4X:

SVF.ScrollPosition = 0

Solves the mentioned problem, without any detrimental effect I have seen so far.
Why this problem only occurred in one particular table remains a mystery to me as there is nil I can see that is different compared
to many other flexible table I have in my app.

RBS

I said I could see no difference with other flexible tables in my app, but there is one difference:
This is a B4XPages project with about 30 flexible tables.
There are 3 pages with a flexible table where the page is created on startup of the app.
The layout (so also the flexible table) is loaded in the Sub B4XPage_Created:

B4X:

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.Tag = iPageCode 'so we can see in clsMenu we are getting the right root
    Load_Layout
End Sub

Of these 3 flexible tables on these 3 pages there are 2 that show the mentioned problem.

I have done some logging of the flexible table class, to do with the Sub innerClearAll and that shows the following logs on startup of the app:

DesignerCreateView, Table name: tblSavedSQL
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblSQLResult
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblDBBrowser
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable

Now the tables that show the mentioned problem are tblSQLResult and tblDBBrowser. No other tables show the mentioned problem.

Apart from the way the way B4XPage, (holding the flexible) is started there is no difference with all the other flexible tables.
So, I am guessing the mentioned problem has to do with the way the page is started, except tblSavedSQL doesn't show the mentioned
problem.

Still seen no problem yet with commenting out:

B4X:

SVF.ScrollPosition = 0

In innerClearAll in the flexible table class.

RBS

RB Smissaert · Feb 3, 2024

RB Smissaert said:
I said I could see no difference with other flexible tables in my app, but there is one difference:
This is a B4XPages project with about 30 flexible tables.
There are 3 pages with a flexible table where the page is created on startup of the app.
The layout (so also the flexible table) is loaded in the Sub B4XPage_Created:

B4X:

'This event will be called once, before the page becomes visible. Private Sub B4XPage_Created (Root1 As B4XView) Root = Root1 Root.Tag = iPageCode 'so we can see in clsMenu we are getting the right root Load_Layout End Sub

Of these 3 flexible tables on these 3 pages there are 2 that show the mentioned problem.

I have done some logging of the flexible table class, to do with the Sub innerClearAll and that shows the following logs on startup of the app:

DesignerCreateView, Table name: tblSavedSQL
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblSQLResult
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblDBBrowser
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable

Now the tables that show the mentioned problem are tblSQLResult and tblDBBrowser. No other tables show the mentioned problem.

Apart from the way the way B4XPage, (holding the flexible) is started there is no difference with all the other flexible tables.
So, I am guessing the mentioned problem has to do with the way the page is started, except tblSavedSQL doesn't show the mentioned
problem.

Still seen no problem yet with commenting out:

B4X:

SVF.ScrollPosition = 0

In innerClearAll in the flexible table class.

RBS

I managed to make a test project that shows this problem.
Note that this is using the Table custom view, without any alterations.
Attached the zipped project.

To show the problem compile the app and press the fifth item (the +-) on the menubar and do a scroll down (finger going up).
Note that if you scroll again it won't go back to row 1 as mentioned before.

RBS

RB Smissaert said:
I said I could see no difference with other flexible tables in my app, but there is one difference:
This is a B4XPages project with about 30 flexible tables.
There are 3 pages with a flexible table where the page is created on startup of the app.
The layout (so also the flexible table) is loaded in the Sub B4XPage_Created:

B4X:

'This event will be called once, before the page becomes visible. Private Sub B4XPage_Created (Root1 As B4XView) Root = Root1 Root.Tag = iPageCode 'so we can see in clsMenu we are getting the right root Load_Layout End Sub

Of these 3 flexible tables on these 3 pages there are 2 that show the mentioned problem.

I have done some logging of the flexible table class, to do with the Sub innerClearAll and that shows the following logs on startup of the app:

DesignerCreateView, Table name: tblSavedSQL
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblSQLResult
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable
DesignerCreateView, Table name: tblDBBrowser
InitTable, called by: DesignerCreateView
innerClearAll, called by: InitTable

Now the tables that show the mentioned problem are tblSQLResult and tblDBBrowser. No other tables show the mentioned problem.

Apart from the way the way B4XPage, (holding the flexible) is started there is no difference with all the other flexible tables.
So, I am guessing the mentioned problem has to do with the way the page is started, except tblSavedSQL doesn't show the mentioned
problem.

Still seen no problem yet with commenting out:

B4X:

SVF.ScrollPosition = 0

In innerClearAll in the flexible table class.

RBS

I managed to make a test project that shows this problem.
Note that this is using the Table custom view, without any alterations.
Attached the zipped project.

To show the problem compile the app and press the fifth item (the +-) on the menubar and do a scroll down (finger going up).
Note that if you scroll again it won't go back to row 1 as mentioned before.

RBS

RB Smissaert · Feb 3, 2024

RB Smissaert said:
I managed to make a test project that shows this problem.
Note that this is using the Table custom view, without any alterations.
Attached the zipped project.

To show the problem compile the app and press the fifth item (the +-) on the menubar and do a scroll down (finger going up).
Note that if you scroll again it won't go back to row 1 as mentioned before.

RBS

I managed to make a test project that shows this problem.
Note that this is using the Table custom view, without any alterations.
Attached the zipped project.

To show the problem compile the app and press the fifth item (the +-) on the menubar and do a scroll down (finger going up).
Note that if you scroll again it won't go back to row 1 as mentioned before.

RBS

Two things to do with this:
1. The mentioned problem doesn't seem to be happening in Debug mode.
2. I noticed sorting the table is still very slow with the selection sort, so uploaded a new project with faster table sorting.

RBS

RB Smissaert · Feb 4, 2024

RB Smissaert said:
Two things to do with this:
1. The mentioned problem doesn't seem to be happening in Debug mode.
2. I noticed sorting the table is still very slow with the selection sort, so uploaded a new project with faster table sorting.

RBS

Some other additions:
1. Allowing non UTF-8 .csv files to be imported
2. Having the option to skip columns in the .csv file to be imported
3. Speeding up the column width measurement

The third icon on the menubar does the original Sub LoadTableFromCSV2 (but with the increased sorting speed)
The fourth icon on the menubar does a new Sub LoadTableFromCSV3 having options 1, 2 and 3 but imports a UTF-8 file
The fifth icon on the menubar imports a windows-1252 file and skips 4 columns

Also added a timer to making this easier to log.
The described scrolling bug will still show.

RBS

klaus · Feb 7, 2024

To amend the scrolling back to the first row is solved by this in the SV2_ScrollChanged routine.
Move the SVF.ScrollToNow(PosY) line just after If SVFScrolls = False Then

B4X:

Private Sub SV2_ScrollChanged(PosX As Int, PosY As Int)
    SV2Scrolls = True
    If SVFScrolls = False Then
        SVF.ScrollToNow(PosY)
        Scroll(PosX, PosY)
        SV2PosX = PosX
'        SVF.ScrollToNow(PosY)
    End If

I had also seen the problem with grey cells, but I have never found why this does happen.

klaus · Feb 7, 2024

I made some further investigations with the scrolling problem.
The problem appears when FastScroll is activated and the table is relatively long.
It seems that the program cannot update the cells fast enough when the user scrolls fast.

RB Smissaert · Feb 7, 2024

klaus said:
To amend the scrolling back to the first row is solved by this in the SV2_ScrollChanged routine.
Move the SVF.ScrollToNow(PosY) line just after If SVFScrolls = False Then

B4X:

Private Sub SV2_ScrollChanged(PosX As Int, PosY As Int) SV2Scrolls = True If SVFScrolls = False Then SVF.ScrollToNow(PosY) Scroll(PosX, PosY) SV2PosX = PosX ' SVF.ScrollToNow(PosY) End If

I had also seen the problem with grey cells, but I have never found why this does happen.

Thanks, will change that and let you know if there still is a problem.
Any chance you could incorporate the altered table sorting code?
It doesn't seem a major change and it will definitely be useful to have a much faster sort.

RBS

klaus · Feb 7, 2024

RB Smissaert said:
Any chance you could incorporate the altered table sorting code?

I will look at this.

RB Smissaert · Feb 7, 2024

klaus said:
I will look at this.

OK, thanks.

RBS

klaus · Feb 8, 2024

I had a look at the new sorting code.
Sorry, but I will not add those because:
It needs three more libraries: B4XPages, RandomAccessFile and Reflection
It needs two more classes.
It will increase the code size by 30%.
Currently it must be a B4XPages project.
This could probably be avoided by moving the GetCharacterEncodingFromFile routine to the Table module.
And removing the two variables bMultiColumnSort and bSortTableCaseInsensitive in the B4XMainPage and add those as properties to the Table module.
Currently there is one Type declaration in the Enum module and to avoid adding also this module, the declaration should be moved somewhere else.
Then, you might have trouble with a double Type declaration.

I do not know if many users use the sorting and how many out of them need a quick sorting.
And all the others do not need these additional libraries and classes and code.

RB Smissaert · Feb 8, 2024

klaus said:
I had a look at the new sorting code.
Sorry, but I will not add those because:
It needs three more libraries: B4XPages, RandomAccessFile and Reflection
It needs two more classes.
It will increase the code size by 30%.
Currently it must be a B4XPages project.
This could probably be avoided by moving the GetCharacterEncodingFromFile routine to the Table module.
And removing the two variables bMultiColumnSort and bSortTableCaseInsensitive in the B4XMainPage and add those as properties to the Table module.
Currently there is one Type declaration in the Enum module and to avoid adding also this module, the declaration should be moved somewhere else.
Then, you might have trouble with a double Type declaration.

I do not know if many users use the sorting and how many out of them need a quick sorting.
And all the others do not need these additional libraries and classes and code.

It doesn't need to increase the code size by 30%.
It also doesn't need those 3 added libraries. They were just added to my demo project to demonstrate the mentioned scrolling bug to make it
all look like my big main project.
The whole Enums module is not needed either.
bMultiColumnSort and bSortTableCaseInsensitive can be left out as well.

How about I upload minimally altered custom view class with nil else?
My guess is that many users do use the sorting and it being so slow is a bit of a nuisance.

RBS

klaus · Feb 8, 2024

RB Smissaert said:
How about I upload minimally altered custom view class with nil else?

Would be interesting.

RB Smissaert · Feb 8, 2024

klaus said:
Would be interesting.

OK, will do that.

RBS

RB Smissaert · Feb 8, 2024

klaus said:
Would be interesting.

Downloaded TableV3_33 from the original Flexible Table posting and made the alterations to the Table class and also to Main.
I then zipped the modules Main and Table and attached that as a .zip.
All the added code is marked as: RBS, Added.
The only library to be added extra is B4XCollections as that is used in the sorting code.
Have tested it and it seems to work all fine.
Note that the first table in Main (people) will sort properly as the datatypes are added, but the second table (Cities) don't sort properly
as all the columns have the data type T.
Multi-column sort and case-insensitive sort are both False by default.

RBS

klaus · Feb 9, 2024

I have begun to look at it.
But tomorrow morning I leave for travel for one week, in the french Alps, snowshoe hiking.
Therefore almost no B4X.
I will come back when I am back home.

RB Smissaert · Feb 9, 2024

klaus said:
I have begun to kook at it.
But tomorrow morning I leave for travel for one week, in the french Alps, snowshoe hiking.
Therefore almost no B4X.
I will come back when I am back home.

OK, have a nice hike.

RBS

fishwolf · Feb 29, 2024

If in example 3.33 version i set

B4X:

Table1.TableColor = 0x00ffffff

for a trasperent table
and set the "First columns fixed"

line of header fixex columns are dirtied by other columns

klaus · Mar 1, 2024

This is because of the transparent color.
When you scroll the other columns to the left, the header of these columns moves to the left behind the header of the fixed columns and you see the header of these columns in the lines of the fixed columns header.
Why do you want to set the TableColor to transparent ?

fishwolf · Mar 1, 2024

klaus said:
This is because of the transparent color.
When you scroll the other columns to the left, the header of these columns moves to the left behind the header of the fixed columns and you see the header of these columns in the lines of the fixed columns header.
Why do you want to set the TableColor to transparent ?

iit is a requirement for a more modern interface

i write here because the problem is not showed in line of table, only in header

i have attach screenshot and example

klaus · Mar 1, 2024

fishwolf said:
i write here because the problem is not showed in line of table, only in header

I knew this, I explained you why this happens.
Try the added project.
I had to add a Panel for the Header to limit its visibility, which was 'normally' hidden by the Header of the fixed columns.

B4A Library [Class] Flexible Table

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