B4J Library [B4X] [XUI] SD FlexGrid (Table)

Star-Dust · Dec 29, 2018

I created a new library to show a table (or grid) similar to the one in EXCEL.

There are already excellent classes that allow many to accomplish things, such as xCustomListView by @Erel (B4X) and with the FlexibleTable by @klaus (B4A). I wanted to make something slightly different suited to my needs.

WARNING
The use of libraries for personal and / or commercial use is permitted. It is not allowed to modify the sources or change the name of the library. Reverse engineering is not authorized to access the sources for any reason, not even for study or learning reasons.

Explanations:

To get the calculation of the cells that contain a formula I have added Erel's B4XEval to my Library, but as soon as possible I will make it external so that everyone can modify it according to their needs.
To select multiple cells, position yourself on the first cell of those to be selected (the one at the top left) click a shot and then click again and drag your finger to cover all the cells (or area) that you want to select
It is still in beta version, presents problems in large grids.
~~Now only for~~ ~~B4A and B4i~~ Now for B4A,B4i,B4j
In the example to select a group of cells just long click on a cell (not checkbox). In the case of B4J click with the right mouse button

SD_FlexGrid

Author: Star-Dust
Version: 0.45

Eval
version 2.00
Eval Method By Erel: https://www.b4x.com/android/forum/threads/b4x-eval-expressions-evaluator.54629/
- Fields:
  - Error As Boolean
- Functions:
  - Calculate (Expression As String) As Double
  - Class_Globals As String
  - Initialize (FG As FlexGrid) As String
  - IsInitialized As Boolean
    Verifica se l'oggetto sia stato inizializzato.
FlexGrid
- Events:
  - CellClick (Row As Int, Col As Int)
  - CellLongClick (Row As Int, Col As Int)
  - FeetClick (Index As Int)
  - HeadClick (Index As Int)
  - Modified (Row As Int, Col As Int)
  - ScrollX (Position As Double)
  - ScrollY (Position As Double)
- Fields:
  - EditBackgroundColor As Int
  - EditTextColor As Int
  - TypeButton As Int
  - TypeCheck As Int
  - TypeDouble As Int
  - TypeFloat As Int
  - TypeImage As Int
  - TypeInt As Int
  - TypeList As Int
  - TypeString As Int
- Functions:
  - AddRow (Cell As Object(), Refresh As Boolean) As String
    eg. Flexgrid.AddRow(Array As Object(i,B,"User ","Description " ,100.00), True)
  - AddRow2 (Cell As Object(), HeightRow As Int, Refresh As Boolean) As String
    eg. Flexgrid.AddRow(Array As Object(i,B,"User ","Description " ,100.00),40dip,True)
  - AddRowAt (index As Int, Cell As Object(), Refresh As Boolean) As String
    eg. Flexgrid.AddRow(2,Array As Object(i,B,"User ","Description " ,100.00), True)
  - AddRowCustomize (Cell As Object(), Text_Color As Int, Background_Color As Int, TextFont As B4XFont, Refresh As Boolean) As String
  - AddToParent (Parent As B4XView, Left As Int, Top As Int, Width As Int, Height As Int, ColsNumber As Int) As String
    Parent is Panel to Add Grid
    eg. Flexgrid.AddToParent(Activity,0,0,100%x,100%y,5)
  - Class_Globals As String
  - ClearRows As String
    erase all rows contents
  - ClearSelection As String
    cell no longer be selected.
  - DesignerCreateView (Base As Object, Lbl As Label, Props As Map) As String
    Base type must be Object
  - EditCell (Row As Int, Col As Int) As String
    eg. Flexgrid.EditCell(1,1)
  - EditCellOnSite (Row As Int, Col As Int) As String
    eg. Flexgrid.EditCell(1,1)
  - GetCellBackgroundColor (Row As Int, Col As Int) As Int
  - GetCellCol (Col As Int) As Object()
    eg. Dim S() as String = Flexgrid.GetCellCol(1)
    eg. Dim B() as Boolean = Flexgrid.GetCellCol(2)
  - GetCellRow (Row As Int) As Object()
    eg Dim Row() as Object = Flexgrid.GetCellRow(1)
  - GetCellTextColor (Row As Int, Col As Int) As Int
  - GetCellTextFont (Row As Int, Col As Int) As B4XFont
  - GetCellValue (Row As Int, Col As Int) As Object
    eg. Dim I as int = Flexgrid.GetCellValue(1,1)
    eg. Dim S as String = FlexGrid.GetCellValue(2,2)
  - GetTypeCol (Col As Int) As Int
    eg. If Flexgrid.GetTypeCol(1)=Flexgrid.TypeInt Then .....
  - Initialize (Callback As Object, EventName As String) As String
  - Invalidate As String
  - IsInitialized As Boolean
    Verifica se l'oggetto sia stato inizializzato.
  - RemoveRow (Row As Int) As String
    Row (0...n-1)
    eg. Flexgrid.RemoveRow(1)
  - ResetCustomizeCell (Col As Int, Row As Int) As String
    eg. Flexgrid.ResetCustomizeCell(1,1)
  - SearchInColumn (Text As String, Col As Int, FromRow As Int, exactly As Boolean, IgnoreCap As Boolean) As Int
    Search for text in the indicated column starting from the start row.
    If the start row is 0 it will check the entire column.
    It will return the position of the line containing the text
    <code>Dim Col As Int = 5
    Dim Row As Int = FlexGied1.SearchInColumn("My text",Col,0, False, True)
    if Row>-1 then Log("Find in row " & Row) Else log("Don't find")
    </code>
  - SearchInColumn2 (Text As String, Col As Int, FromRow As Int, exactly As Boolean, IgnoreCap As Boolean) As List
    Search for text in the indicated column starting from the start row.
    If the start row is 0 it will check the entire column.
    It will return the list of position of the line containing the text
    <code>Dim Col As Int = 5
    Dim IndexFinded As List = FlexGied1.SearchInColumn2("My text",Col,0, False, True)
    if IndexFinded.Size>0 then Log("Find in row " & Row) Else log("Don't find")
    </code>
  - SelectCell (Row As Int, Col As Int, Mobile As Boolean) As String
    eg. Flexgrid.SelectCell(1,1,True)
    If Mobile is True, the selectable area can be enlarged by touching and dragging it to the desired box.
  - SelectCells (FromRow As Int, FromCol As Int, ToRow As Int, ToCol As Int, Mobile As Boolean) As String
    eg. Flexgrid.SelectCell(1,1,5,4,True)
    If Mobile is True, the selectable area can be enlarged by touching and dragging it to the desired box.
  - SelectCol (Col As Int) As String
    eg. Flexgrid.SelectCol(1)
  - SelectRow (Row As Int) As String
    eg. Flexgrid.SelectRow(1)
  - SetCellCustomize (Row As Int, Col As Int, Text_Color As Int, Background_Color As Int, TextFont As B4XFont) As String
    eg. Flexgrid.SetCellCustomize(1,1,XUI.Color_Black,XUI.Color_White,XUi.CreateDefaultFont(12))
  - SetCellListIndex (Row As Int, Col As Int, Index As Int) As String
  - SetCellValue (Row As Int, Col As Int, Value As Object) As String
    eg. Flexgrid.SetCellValue(1,1,True)
    eg. Flexgrid.SetCellValue(2,2,"OK")
    eg. Flexgrid.SetCellValue(3,3,3)
    eg. Flexgrid.SetCellValue(Row,Col,"A,B,C,D,E") for TypeList
  - SetColAlignment (ColumnIndex As Int, Alignment As String) As String
    Index (0..n-1)
    eg. SetColAlignment(0,"CENTER")
  - SetColCustomize (Col As Int, Text_Color As Int, Background_Color As Int, TextFont As B4XFont) As String
    eg. Flexgrid.SetColCistomize(1,XUI.Color_Black,XUI.Color_White,XUi.CreateDefaultFont(12))
  - SetColName (ColumnIndex As Int, Name As String) As String
    Index (0..n-1)
    eg. Flexgrid.SetColName(1,"Help")
  - SetColsNumber (ColumnNumber As Int) As String
    Reset Grid and Change Cols Number
  - SetColType (ColumnIndex As Int, Typ As Int) As String
    Index (0..n-1)
    eg. SetColType(0,FlexGrid.TypeInt)
  - SetColWidth (ColumnIndex As Int, Width As Int) As String
    Index (0..n-1)
    eg. SetColWidth(0,100dip)
  - SetDataRow (Row As Int, Cell As Object()) As String
    eg. Flexgrid.SetRow(Row,Array As Object(i,B,"User ","Description " ,100.00))
  - SetDataRow2 (Row As Int, Cell As Object(), HeightRow As Int) As String
    eg. Flexgrid.SetRow2(Row,Array As Object(i,B,"User ","Description " ,100.00),40dip)
  - SetFeetHeight (Height As Int) As String
    Set Header Height
  - setFootColValue (col As Int, Fv As String) As String
    eg. Flexgrid.FeetValue=array As String ("First","Second")
  - setHeaderAlignment (Col As Int, Alignment As String) As String
    eg. Flexgrid.HeaderAlignment="CENTER"
  - SetHeadHeight (Height As Int) As String
    Set Header Height
  - SetPadding (Left As Int, Top As Int, Right As Int, Bottom As Int) As String
    eg. FlexGrid1.SetPadding(10dip,0,10dip,0)
  - SetRowCustomize (Row As Int, Text_Color As Int, Background_Color As Int, TextFont As B4XFont) As String
    eg. Flexgrid.SetRowCustomize(1,XUI.Color_Black,XUI.Color_White,XUi.CreateDefaultFont(12))
  - SetRowHeight (IndexRow As Int, Height As Int) As String
    IndexRow (0..Size-1)
    eg. setRowHeight(0,60dip)
  - SetRowsHeight (Height As Int) As String
    Set all Rows Height
  - SetSingleLine (SLine As Boolean) As String
    To set the cells to single or multiple lines
  - SortForCol (Column As Int) As String
- Properties:
  - Base As B4XView [read only]
  - ColCount As Int [read only]
  - ColorSelectedArea
    Set the color of the selected area
  - ColorSelectingArea
    Set the color of the area during the selection phase
  - ColsAlignment
    eg. setColsAlignment(Array As String ("LEFT","CENTER","CENTER","RIGHT"))
  - ColsName As String()
    eg. Flexgrid.ColName=array As String ("First","Second")
  - ColsType
    eg. ColsType=Array As Int(FlexGrid1.TypeInt,FlexGrid1.TypeCheck,FlexGrid1.TypeString,FlexGrid1.TypeString,FlexGrid1.TypeFloat)
  - ColsWidth
    eg. SetColsWìdth(Array As Int (100dip,50dip,100dip,100dip))
  - Font
    eg. Flexgrid.Font=xui.CreateDefaultFont(12)
  - FootFont
    eg. Flexgrid.FeetFont=xui.CreateDefaultFont(12)
  - FootValue As String()
    eg. Flexgrid.FeetValue=array As String ("First","Second")
  - FootVisible
    eg. FG.FeetVisible=True
  - HeaderFont
    eg. Flexgrid.HeaderFont=xui.CreateDefaultFont(12)
  - HeaderVisible
    eg. FG.HeadVisible=True
  - Height As Int
  - RowCount As Int [read only]
    Dim Size as int = Flexgrid.RowCount
  - ScrollToCol
    eg. Flexgrid.ScroolToCol=50 (Col= 0..Size-1)
  - ScrollToRow
    eg. Flexgrid.ScroolToRow=50 (Row= 0..Size-1)
  - ScrollX As Double
  - ScrollY As Double
  - SelectedColumnEnd As Int [read only]
    return -1 if not selected
  - SelectedColumnStart As Int [read only]
    return -1 if not selected
  - SelectedRowEnd As Int [read only]
    return -1 if not selected
  - SelectedRowStart As Int [read only]
    return -1 if not selected
  - Width As Int

List/Spinner

For more details: https://www.b4x.com/android/forum/threads/xui-flexgrid.98686/

Significative release logs:

0.12
- Add method SelectCells (FromRow As Int, FromCol As Int, ToRow As Int, ToCol As Int, Mobile As Boolean)
- Modify method SelectCell (Row As Int, Col As Int, Mobile As Boolean)
0.15: Added HeaderFont
0.16: Added SetColsNumber method.
0.19 (Sample)
- Add method AddRowCustomize (Cell As Object()
- Add method SearchInColumn (Text As String, Col As Int, FromRow As Int, exactly As Boolean, IgnoreCap As Boolean) As Int
0.21
- Add TypeList. Allows you to add a ComboBox type box (Spinner in B4A and Picker in B4i) and select to a list
- Added other examples to POST n. 2 To populate the grid from the database, search for a string in a column and to use TypeList in the grid
- added SetCellListIndex method to change the position of the selected index
0.25
- Added SetHeadHeight method
  sets the height of the header
- Added SetRowsHeight method
  sets the height of all lines
0.27
- added properties ScrollX and ScrollY
- Added events ScrollX() and ScrollY()
0.29: Fixed bugs in vertical scrolling
0.31
- Added SortForCol(Column As Int)
- Added SetDataRow(Row As Int, Cell() As Object) and SetDataRow2(Row As Int, Cell() As Object, HeightRow As Int)
- Added field ColorSelectedArea and ColorSelectingArea
- Fix bug
0.32
- Added SearchInColumn2. Returns the list of search result lines
0.33
- Added setHeaderAlignment
0.34
- Added the ability to freeze the last row (foot row) as well as the header so you can enter column totals that always remain visible
- Fix minor bugs
0.35
- Added the ability to select from Design that text cells are single or multiline
0.36
- Fix bugs: SortForCol; SetColsNumber
0.37
- Added: EditTextColor and EditBackgroundColor fields to be able to select colors for the on-site editable cell. By default it is black background and white text
0.38
- Fixed bug on CheckBox alignment
0.39
- Singleline and multiline option of the design now also affects the column header and column foot
0.40
- Added ScrollToCol (together with ScrollToRow it is possible to position in a specific cell)
0.41
- Fix bug
0.42
- Added Width and Height to change the size of the grid from code during execution
0.43
- Fixed bug on SearchInColumn2
0.44
- Added SetSingleLine - To set the cells to single or multiple lines
0.45
- Added SetPadding

Star-Dust · Jun 24, 2023

Mauricio Pereira said:
Star-Dust,
Initially, I clarify that all the questions below are exclusively by code, that is, without touching the screen.
In an application using your Flexgrid, we have 6 columns and several rows.
Because of the size of the screen, only 3 columns are displayed at a time. If we use EditOnSite, and scroll to the right in the same row, when we reach column 4 the screen scrolls automatically and columns 2, 3 and 4 are visible. Even when we reach the last column and move forward, the screen scrolls to column 1 of the next row.
When instead of Editonsite we use SelectCell, the scroll does not happen. So when we move from column 3 to 4 (by code), the cell is selected but invisible unless scrolling by hand.
My question is whether we can do this scrolling by code.
Thank you in advance for your attention.

I didn't quite understand your problem. However to scroll from code use ScrollX and ScrollY

Mauricio Pereira · Jun 24, 2023

Star-Dust said:
I didn't quite understand your problem.

Star-Dust,
I'll try to explain better.
Be, for example, a table with 6 columns and several rows.
On the smartphone screen, only columns 1, 2 and 3 appear (because of the screen size).
By code, I do Flexgrid1.SelectCell(row 0, column 1). The cell (0,1) is "colored" indicating the selection.
Next I do FlexGrid1.SelectCell(row 0, column 2 ). Cell (0,2) is selected. I do the same for column 3. It is selected and visible.
When I go to the cell (0,4), which is not visible on the screen, it is selected but the screen scrolling does not happen. Ideally, columns 2, 3 and 4 should be visible. And so on.
I can only see the cell (0,4) selected by scrolling with my finger on the screen. I wish I could do this by code.
If Editonsite is used instead of selectCell, scrolling works as desired.

Star-Dust · Jun 24, 2023

Mauricio Pereira said:
Star-Dust,
I'll try to explain better.
Be, for example, a table with 6 columns and several rows.
On the smartphone screen, only columns 1, 2 and 3 appear (because of the screen size).
By code, I do Flexgrid1.SelectCell(row 0, column 1). The cell (0,1) is "colored" indicating the selection.
Next I do FlexGrid1.SelectCell(row 0, column 2 ). Cell (0,2) is selected. I do the same for column 3. It is selected and visible.
When I go to the cell (0,4), which is not visible on the screen, it is selected but the screen scrolling does not happen. Ideally, columns 2, 3 and 4 should be visible. And so on.
I can only see the cell (0,4) selected by scrolling with my finger on the screen. I wish I could do this by code.
If Editonsite is used instead of selectCell, scrolling works as desired.

Now I understand. I didn't expect the grid to position itself on the cells selected by code(SelectCell). I will consider it for the future.

Surely it will not be possible for the command to select multiple cells (SelectCells) because if the selected cells exceed the dimensions of the visible ones, it would force me to create an algorithm that chooses which cells to show.

Mauricio Pereira · Jun 24, 2023

Star-Dust said:
Now I understand. I didn't expect the grid to position itself on the cells selected by code(SelectCell). I will consider it for the future.

Surely it will not be possible for the command to select multiple cells (SelectCells) because if the selected cells exceed the dimensions of the visible ones, it would force me to create an algorithm that chooses which cells to show.

OK. I understood.
Obviously I don't know the kernel of your library but the EditOnSite command scrolls exactly as desired.
Many thanks for your prompt responses.

Star-Dust · Jun 25, 2023

Mauricio Pereira said:
OK. I understood.
Obviously I don't know the kernel of your library but the EditOnSite command scrolls exactly as desired.
Many thanks for your prompt responses.

There is no positioning on the cell on EditOnSite, if it happens to you that it moves I can assure you that it is not due to a positioning instruction of my code, rather it is due to a management that iOS makes of the scrollView when a TextField is active to be written

Note that there is ScrollToRow which positions on the requested row.

David Hawkins · Jun 29, 2023

Hi Star-Dust how do I center a FlexGrid1.TypeCheck vertically in IOS, it centers horizontally OK but not vertically.

Regards
David

Star-Dust · Jul 6, 2023

David Hawkins said:
Hi Star-Dust how do I center a FlexGrid1.TypeCheck vertically in IOS, it centers horizontally OK but not vertically.

Regards
David

At the moment it is not possible to make vertical adjustments

David Hawkins · Jul 6, 2023

OK thank you
Regards
David

Star-Dust · Jul 9, 2023

Update rel. 0.40

Added ScrollToCol (together with ScrollToRow it is possible to position in a specific cell)

David Hawkins · Jul 13, 2023

Hi Star-Dust,

I have a Flex grid with 7 columns each 120dip wide and multiple rows, which means I can only see 4 visible columns and 3 are hidden.

When I scroll horizontally all is well, however if I have scrolled to a hidden column and then scroll vertically the grid automatically moves back to the left and I am only seeing the visible columns again. Is there a way to scroll vertically and still show the hidden columns?

Many Regards
David

Star-Dust · Jul 13, 2023

David Hawkins said:
Hi Star-Dust,

I have a Flex grid with 7 columns each 120dip wide and multiple rows, which means I can only see 4 visible columns and 3 are hidden.

When I scroll horizontally all is well, however if I have scrolled to a hidden column and then scroll vertically the grid automatically moves back to the left and I am only seeing the visible columns again. Is there a way to scroll vertically and still show the hidden columns?

Many Regards
David

On which platform do you have this problem? Can you attach a short video in GIF format?

David Hawkins · Jul 13, 2023

I will do this tomorrow. the platform is B4i

David Hawkins · Jul 14, 2023

Hi Star-Dust I have created a small video which shows the problem, as I said yesterday it is the B4i platform it is OK on B4a.
I converted an mp4 video file to gif but that is 10 times larger so I will attach the mp4 which I hope you can run.
Regards
David

Unfortunately the video is too large (2MB) to upload is there another way to get it to you? I could use 'wetransfer' but I would need your email address?

Star-Dust · Jul 15, 2023

You can use this site to turn a video into gif and reduce its size, resolution and compress. I have no other suggestions at the moment.

Video to animated GIF converter

Upload your video, select the part you want to convert and instanlty create a GIF in good quality for free and without watermarks.

ezgif.com

I'll do some tests as soon as I have time

David Hawkins · Jul 16, 2023

Hi Star-Dust please see this Video
Regards
David

Star-Dust · Jul 16, 2023

David Hawkins said:
Hi Star-Dust please see this Video
Regards
David

Okay. Seems like a quirk of the ScrollView. I will study

David Hawkins · Jul 16, 2023

Thank you

Star-Dust · Jul 18, 2023

David Hawkins said:
Hi Star-Dust,

I have a Flex grid with 7 columns each 120dip wide and multiple rows, which means I can only see 4 visible columns and 3 are hidden.

When I scroll horizontally all is well, however if I have scrolled to a hidden column and then scroll vertically the grid automatically moves back to the left and I am only seeing the visible columns again. Is there a way to scroll vertically and still show the hidden columns?

Many Regards
David

Update rel 0.41

fix bug

David Hawkins · Jul 19, 2023

Hi Star-Dust
All fixed thank you.

Many regards
David

Sergio Haurat · Jul 31, 2023

Hello, your code is amazing. I wanted to propose to incorporate in the edition, add a mask. Using your example:

Wish:

    FlexGrid1.ColsName=Array As String("","N","On","Name","Img","Digit")
    FlexGrid1.ColsWidth=Array As Int(75dip,50dip,50dip,100dip,60dip,100dip)
    FlexGrid1.ColsType=Array As Int(FlexGrid1.TypeButton,FlexGrid1.TypeInt,FlexGrid1.TypeCheck,FlexGrid1.TypeString,FlexGrid1.TypeImage,FlexGrid1.TypeFloat)
    FlexGrid1.ColsAlignment=Array As String("CENTER","CENTER","CENTER","LEFT","LEFT","RIGHT")
    FlexGrid1.ColsMask=Array As String("","","","","","#.##") 'or FlexGrid1.ColsMask=Array As String(Null,Null,Null,Null,Null,"#.##")

Do you think it is possible?

B4J Library [B4X] [XUI] SD FlexGrid (Table)

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