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

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:
  1. 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.
  2. 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
  3. It is still in beta version, presents problems in large grids.
  4. Now only for B4A and B4i Now for B4A,B4i,B4j
  5. 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: 0.46
  • 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


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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
  • 0.46
    • Fix bugs
  • 0.47
    • Fix Bugs
 

Attachments

Last edited:
Click to expand...
Sergio Haurat said:
Hello, your code is amazing. I wanted to propose to incorporate in the edition, add a mask. Using your example:

Code: 
    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?
Click to expand...
Hi, I'll think about it
 
Hi,

I have multiple FlexGrids in app, and those are working very well with, but now I have a bit weird problem, I think it's just something that I don't get...

Question - how to change grid height in run time? I have tried grid.base.Height, but it only changes the height of the base(panel?), same qty of rows is shown, while there would be many more to show if the grid.height would be bigger as I can change it in designer.

What am I missing?
 
David Hawkins said:
Hi Hazaal
Have you tried the 'setdatarow2' function
Regards
David
Click to expand...
Thanks David,

But I have no problems with adding rows or setting the height of them.

My problem is changing the grid height in run-time (not row height), as there is no such properties - FlexGrid1.Height

Br,
-Harri
 
Update 0.42
  • Added Width and Height to change the size of the grid from code during execution
B4X: 
FlexGrid1.Width=300dip
FlexGrid1.Width=FlexGrid1.Width+50dip
FlexGrid1.Height=80%y
 
Update rel 0.44
  • Added SetSingleLine - To set the cells to single or multiple lines by code
 
swamisantosh said:
Hello Sir
Show To display only the lines that correspond to certain parameters described in the filter, (FilterView) (when are you planning to implement this feature)
Sd Flexigrid great library.
Click to expand...
I'll take note of it, we'll see if it will be possible to include it in the future
 
Update rel 0.45
  • Added SetPadding method , to padding the cell
B4X: 
FlexGrid1.SetPadding (10dip, 0, 10dip, 0)
 
Star-Dust said:
Update rel 0.45
  • Added SetPadding method , to padding the cell
B4X: 
FlexGrid1.SetPadding (10dip, 0, 10dip, 0)
Click to expand...
Good morning Stardust, fantastic library for managing databases in the grid, I tried and everything works very well, except the removerow command, if I launch this command the program crashes, can you tell me where I'm wrong. Thank you
 
Hi,
you didn't give me the necessary elements to understand the problem. Give a debug and report the error. It would be useful to copy the code portion as well
 
guandjy said:
Extremely strong, adding a grouping subtotal summation function would be even more perfect
Click to expand...
In an example we demonstrate how to handle formulas and you can get what you asked for. :)
 
Star-Dust said:
In un esempio viene illustrato come gestire le formule e come ottenere ciò che si è chiesto. :)
Click to expand...

Star-Dust said:
In an example we demonstrate how to handle formulas and you can get what you asked for. :)
Click to expand...
Thanks Sturdust, I don't know why for the help but now it works. When before I launched the FlexGrid1.RemoveRow(1) command everything stopped. It resolved itself. Thanks in any case for the help, professional as always
 
Star-Dust said:
Hi, I'll think about it
Click to expand...
I wrote this post at different times, my language is not English and if there are any errors in grammar I hope everyone can understand my comments

Column name and column HeaderText:

In Visual Studio, DataGridView has two separate properties relative to the header in the column collection.

1. The actual name of the column, which can be accessed as an object. The property name is "name"
2. User-friendly column text named "HeaderText"

It would be very useful to be able to differentiate the column object from a text that the user views in the header. If you want to do it, thinking about projects that use SD_FlexGrid, if the HeaderText is not specified, you get a copy of the "name"as HeaderText.

Tag property:

There a way to add a "Tag" property to each cell? This is useful for assigning an identifier. In my case I have a person who has an identification number. To get the data, if I don't want to show the ID number, I need to add a column with "0dip" so that column is not shown:

Code: 
    FlexGrid1.ColsName = Array As String("", "Name", "Player present", "Player absent with justification", "Player absent without justification", "Player absent due to injury"))
    FlexGrid1.ColsWidth = Array As Int(0dip, 180dip, 78dip, 78dip, 78dip, 78dip)
    FlexGrid1.ColsType = Array As Int(dgvView.TypeInt, dgvView.TypeString, dgvView.TypeCheck, dgvView.TypeCheck, dgvView.TypeCheck, dgvView.TypeCheck)
    FlexGrid1.ColsAlignment = Array As String("CENTER", "CENTER", "CENTER", "CENTER", "CENTER", "CENTER")

An idea of assigning a value to the Tag property

Code: 
FlexGrid.SetCellTag(Row, Col) = 12345678

Export data:

Finally, the Tag property and the inclusion of HeaderText would be very useful for what follows:

I didn't find a function that saves the content to a JSON object or any other type., for this reason I made my own procedure. This is a version that can be improved, but for the moment, it is only functional to my needs for this particular project.

Code: 
Sub Dummy()
  'With the HeaderText property separated from name, lstCols parameter would not be necessary.
  Dim lstCols(6) As String
  lstCols(0) = "clb_asistencias_id" 'This is the place of the property Tag
  lstCols(1) = "clb_asistencias_pre"
  lstCols(2) = "clb_asistencias_aca"
  lstCols(3) = "clb_asistencias_asa"
  lstCols(4) = "clb_asistencias_apl"
  Dim strJSON As Object = WriteTableToJSONString(FlexGrid1, lstCols)
End Sub

Public Sub WriteTableToJSONString(objTbl As FlexGrid, lstColsName() As String) As ResumableSub
  Dim strJSON As String = "["
  Dim strValue As String = ""
  For intRow = 0 To objTbl.RowCount - 1
    strJSON = strJSON & "{"
    For intCol = 0 To objTbl.ColsName.Length - 1
      Dim strColName As String = lstColsName(intCol)
      Select objTbl.GetTypeCol(intCol)
        Case objTbl.TypeString
          strValue = QUOTE & objTbl.GetCellValue(intRow, intCol) & QUOTE & ","
        Case objTbl.TypeFloat, objTbl.TypeInt
          strValue = objTbl.GetCellValue(intRow, intCol) & ","
        Case Else
          If objTbl.GetCellValue(intRow, intCol) = True Or objTbl.GetCellValue(intRow, intCol) = False Then
            strValue = objTbl.GetCellValue(intRow, intCol) & ","
          Else
            strValue = QUOTE & objTbl.GetCellValue(intRow, intCol) & QUOTE & ","
          End If
       End Select
       strJSON = strJSON & QUOTE & strColName & QUOTE & ": " & strValue
    Next
    strJSON = strJSON.SubString2(0, strJSON.Length - 1) & "},"
  Next
  strJSON = strJSON.SubString2(0, strJSON.Length - 1) & "]"
  Return strJSON
End Sub

In the following JSON data example, clb_asistencias_id should be obtained from the Tag property instead of a hidden column

Code: 
[{
        "clb_asistencias_id": 46955403,
        "clb_asistencias_pre": true,
        "clb_asistencias_aca": false,
        "clb_asistencias_asa": false,
        "clb_asistencias_apl": false
    }, {
        "clb_asistencias_id": 45419355,
        "clb_asistencias_pre": true,
        "clb_asistencias_aca": false,
        "clb_asistencias_asa": false,
        "clb_asistencias_apl": false
    }, {
        "clb_asistencias_id": 46649536,
        "clb_asistencias_pre": true,
        "clb_asistencias_aca": false,
        "clb_asistencias_asa": false,
        "clb_asistencias_apl": false
    }]

Thank you for your time and effort
 
Last edited:
We found this library just a couole days ago, really loving this!
Thanks @Star-Dust !!

Question
Can you guide me on how to use icons, such as replacing the images with icons?

Edit: Solved - Please ignore my question
I added for example
B4X: 
FlexGrid.AddRow(Array As Object("Test", Chr(0xF244), "text 1"),True)
The key is to change the setting of the FlexGrid to FontAwesome.
Thanks very much!
 
Last edited:
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