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- Other types of arrays
- Procedure: Declaring an array parameter
- Passing an array in parameter to a procedure
- WLanguage functions and arrays
- Array of arrays, associative array, queue, stack, list
- Limits: Array elements
- Arrays in the classes
- Adding the content of a structure into an array of structures without using a variable of this structure
Array (Type of variable) In french: Tableau (Type de variable)
An array is a structured type that is used to group a set of elements of the same type. Each array element can be directly accessed by its subscript.
// Declares an array initialized with the names of days of the week
DayArray is array of strings = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"]
// Handles the array
DayArray[2] // Returns "Tuesday"
// Declares an array of integers
ValueArray is array of int
// Fills the array of integers by adding values
Add(ValueArray, 5)
Add(ValueArray, 10)
Add(ValueArray, 15)
// Browses the array values
FOR EACH x OF ValueArray
// x is successively equal to 5, 10, 15
...
END
// Declares an array of integers
ValueArray is array <growth=1> of int
// Enlarges the array to insert the value 1: 10
ValueArray[1] = 10
// Enlarges the array to insert the value 2: 20
ValueArray[2] = 20
// Enlarges the array to insert the value 3: 30
ValueArray[3] = 30
// Browses the array values
FOR EACH x OF ValueArray
// x is successively equal to 10, 20, 30
END
// Declares an array of integers
ValueArray is array <growth=N> of int
// Enlarges the array to insert the value 1: 10
ValueArray[1] = 10
// Enlarges the array to insert the value 5: 50
// The values 2, 3 and 4 are initialized to 0
ValueArray[5] = 50
// Browses the array values
FOR EACH x OF ValueArray
// x is successively equal to 10, 0, 0, 0, 50
END
 Versions 20 and later New in version 20 Syntax Versions 17 and later
Declaring a one-dimensional array
<Array name> is array [<growth>] [ [<Dimension 1>] ] <Type of array elements>
Example:
arrString is array <growth=N> [10] strings
arrInt is array [5] ints
New in version 17
Declaring a one-dimensional array
<Array name> is array [<growth>] [ [<Dimension 1>] ] <Type of array elements>
Example:
arrString is array <growth=N> [10] strings
arrInt is array [5] ints
Declaring a one-dimensional array
<Array name> is array [<growth>] [ [<Dimension 1>] ] <Type of array elements>
Example:
arrString is array <growth=N> [10] strings
arrInt is array [5] ints
<Array name> is array [<growth>] of [<Dimension>] <Type of array elements>
<Array name>: Name of the array variable to declare. <growth>: Optional mode for enlarging the array:- nothing (by default) or "<growth=0>": the array is not automatically enlarged. For example, a runtime error will occur if the array contains 5 elements and if the program accesses the element 6 or 100.
- "<growth>" or "<growth=1>": the array is automatically enlarged by 1 element. For example, if the array contains 5 elements and if the program accesses the element 6, the array is automatically enlarged to handle the element 6 ; a runtime error will occur if the program accesses the element 100.
- "<growth=N>": the array is automatically enlarged by the number of necessary elements. For example, if the array contains 5 elements and if the program accesses the element 6, the array is automatically enlarged to handle the element 6 ; if the program accesses the element 100, the array is automatically enlarged to handle the element 100. The intermediate elements are initialized with the default value for this type of array elements.
Note: To enlarge an array with several dimensions, use Dimension. <Dimension>: Optional dimension of the array. This parameter can:- be unspecified or correspond to * or 0: the array is initialized empty.
- correspond to a constant value or to an integer variable: the array is initialized with the specified number of elements. Each element is initialized with the default value of its type.
<Type of array elements>: Type of the elements found in the array. See the different types of variables.
Versions 20 and later New in version 20 Versions 17 and later
Declaring an array with several dimensions (up to 10)
<Array name> is array of [ [<Dimension 1> [, <Dimension 2>]...[, <Dimension 10>]] ] <Type of array elements>
Example:
arrString is array [10,20] strings
arrInt is array [3,5,2] ints
New in version 17
Declaring an array with several dimensions (up to 10)
<Array name> is array of [ [<Dimension 1> [, <Dimension 2>]...[, <Dimension 10>]] ] <Type of array elements>
Example:
arrString is array [10,20] strings
arrInt is array [3,5,2] ints
Declaring an array with several dimensions (up to 10)
<Array name> is array of [ [<Dimension 1> [, <Dimension 2>]...[, <Dimension 10>]] ] <Type of array elements>
Example:
arrString is array [10,20] strings
arrInt is array [3,5,2] ints
<Array name> is array of [<Dimension 1> [by <Dimension 2>] ... [by <Dimension 10>]] <Type of array elements> OR <Array name> is array of [<Dimension 1> [,<Dimension 2>] ... [,<Dimension 10>]] <Type of array elements>
<Array name>: Name of the array variable to declare. <Dimension 1>...<Dimension 10>: Dimension 1 to 10 of the array. The value of the dimension can correspond to:- * or 0: the dimension is initialized with 0 element.
- a constant value or an integer variable: the dimension is initialized with the specified number of elements. Each element is initialized with the default value of its type.
<Type of array elements>: Type of the elements found in the array. See the different types of variables.
Versions 20 and later New in version 20
Declaring an array parameter Hide the details
One-dimensional array: <Parameter name> is array of [<Dimension>] <Type of array elements> Two-dimensional array <Parameter name> is array of <Dimension 1> by <Dimension 2> <Type of array elements> N-dimensional array <Parameter name> is array of [<Dimension 1> [by <Dimension 2>] ... [ by <Dimension N>]] <Type of array elements>
<Parameter name>: Name of the array parameter to declare. <Dimension n>: <Dimension> may not be specified, it may correspond to * , 0 or to a constant value. <Type of array elements>: Type of the elements found in the array. See the different types of variables.
Versions 20 and laterNote: The elements that make up the array can also be arrays, fixed arrays, associative arrays, queues, stacks or lists. New in version 20Note: The elements that make up the array can also be arrays, fixed arrays, associative arrays, queues, stacks or lists. Note: The elements that make up the array can also be arrays, fixed arrays, associative arrays, queues, stacks or lists.
Referring to an array Hide the details
Referring to an element in a one-dimensional array: <Array name>[Subscript1] Referring to an element in a two-dimensional array: <Array name>[Subscript1, Subscript2] OR <Array name>[Subscript1][Subscript2] Referring to an element in a n-dimensional array: <Array name>[Subscript1,...,SubscriptN] OR <Array name>[Subscript1]...[SubscriptN]
<Array name>: Name of the array to use. <Subscript1>: Subscript of the element for the 1st dimension. <Subscript2>: Subscript of the element for the 2nd dimension. <SubscriptN>: Subscript of the element for the Nth dimension (N <= 10). Note: An array cannot be handled as a whole. For example, an array cannot be assigned to another array.Remarks The Array keyword is used to define an array. Other types of "advanced" arrays are available: Procedure: Declaring an array parameter An array can be passed in parameter to a procedure. For example:
// Adds a customer into the array
PROCEDURE AddCustomer(arrCustomer is array of * CCustomer,
sName is string,
sInfo is string)
// Builds the new customer object
c is CCustomer(sName, sInfo)
// Adds the object into the array
Add(arrCustomer, c)
Notes: - The type of the elements found in the array passed in parameter must be the same as the one of the declaration.
- The number of dimensions in the array passed in parameter must be the same as the one of the declaration.
- The number of elements found in each dimension of the array passed in parameter must correspond to the declaration:
- if the number of elements for the dimension is *, no check is performed.
- if the number of elements for the dimension is specified, the number of elements must be identical.
- No check is performed during the compilation: the checks are performed at run time.
Passing an array in parameter to a procedure An array can be passed in parameter to a procedure. To do so, use the following syntax:
<Procedure name>(<Array name>)
For example:
SuppArray is array of 10 by 50 strings
// Call to the DisplayArray procedure
DisplayArray(SuppArray)
WLanguage functions and arrays Several WLanguage functions can be used to handle the arrays. You have the ability to perform sorts, searches, etc. See Functions for managing arrays for more details. Versions 20 and later New in version 20 - An array can be made of classes only if these classes have a constructor without parameter (or with optional parameters).
- An array cannot include:
- composite variables,
- arrays.
- An array cannot be made of composite variables.
When copying instances of classes, all the members of the class are copied into the new instance except for the arrays. Therefore, if the value of an array member is modified, this value is modified in all the instances. To get independent arrays in all instances of classes, a local array must be declared as follows:
SystemClass is Class
aDefaultArray is local array of 1 int
END
Adding the content of a structure into an array of structures without using a variable of this structure If you are using an array of structures with few members, it may be easier to directly add a structure by using the [ ] operator (square brackets). For example, for the following structure:
// Structure to store a letter and its ASCII code
STKey is Structure
sKey is string
nAsciiCode is int
END
// Array of structures
arrKeys is array of STKey
In most cases, the addition is performed by using a variable of structure type:
// Temporary structure for the addition
stAKey is STKey
// Stores the letter A
stAKey.sKey = "A"
stAKey.nAsciiCode = Asc("A")
arrKeys.Add(stAKey)
With the [ ] operator, you get better legibility:
// Stores the letter A
arrKeys.Add(["A", Asc("A")])
Related Examples:
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Unit examples (WINDEV): Using the arrays
[ + ] Using the array type in WLanguage.
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| Se existe janela aberta, não abra e se sair, limpe o array |
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| //Global
arrayJanelas is array of string
----
//Se existe janela aberta não abra
ResSubscript is int = ArraySeek(arrayJanelas, asLinearFirst, NomeWindow)
IF ResSubscript = -1
Add(arrayJanelas, NomeWindow)
open(NomeWindow)
END
---
//Ao sair limpe do array a janela aberta em close window
nJanela is int = ArraySeek(arrayJanelas, asLinearFirst, MyWindow..name)
if nJanela > 0
arraydelete(arrayJanelas,nJanela)
end
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| ARRAY DIMENSIONAL VARIAVEL |
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| arrayAntes is array of 1 by 4 STRING
ArrayDeleteAll(arrayAntes)
Dimension(arrayAntes,1,4)
X is int = 1
FOR EACH t000_frutas
arrayAntes[X,1]=t000_frutas.t000_frutas_ID
arrayAntes[X,2]=t000_frutas.t000_fruta
arrayAntes[X,3]=t000_frutas.t000_ordem
arrayAntes[X,4]=t000_frutas.t000_status
X++
Dimension(arrayAntes, X, 4)
END |
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| | I have a customer who is reaching the 65,000 item limit and was wondering if an array counted as one item or that if each element in the array counted towards the total. Like MyArray ["john","mary","frank"] is that one item towards the limit or three? |
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| Exemplo Array - Ocorrencias |
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| //Quantos Array
n_quantos_array is int=tabListanumeros..Occurrence
Info("Tem "+n_quantos_array+" Array")
//Frances
n_quantos_array_f est entier=tabListanumeros..Occurrence
=====
tabListanumeros is array of 0 int
ArrayAddLine(tabListanumeros,10)
ArrayAddLine(tabListanumeros,5)
ArrayAddLine(tabListanumeros,2)
ArrayAddLine(tabListanumeros,20)
ArraySort(tabListanumeros,asAscending)
FOR x=1 TO ArrayCount(tabListanumeros)
SAI_array+=tabListanumeros[x]+CR
END
//blog com video e exemplo
http://windevdesenvolvimento.blogspot.com.br/2016/02/curso-windev-array-002-quantas.html
////Frances
//tabListanumeros_f est tableau de 0 entier
//TableauAjouteLigne(tabListanumeros_f,10)
//TableauAjouteLigne(tabListanumeros_f,5)
//TableauAjouteLigne(tabListanumeros_f,2)
//TableauAjouteLigne(tabListanumeros_f,20)
//TableauTrie(tabListanumeros_f,ttCroissant)
//POUR x=1 A TableauOccurrence(tabListanumeros_f)
// SAI_array+=tabListanumeros_f[x]+RC
//FIN |
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//Example Array [N,X]
arrMensajes is array of 1 by 3 strings //GLOBAL
//CODE
ArrayDeleteAll(arrMensajes )
Dimension(arrMensajes ,1,3)
i is int = 1
SQLExec(sQuery,ds)
WHILE SQLFetch(ds) = 0
arrMensajes[i,1] = SQLGetCol(ds, 1) //id
arrMensajes[i,2] = SQLGetCol(ds, 2) //numero
arrMensajes[i,3] = SQLGetCol(ds, 3) //mensaje
i++
END |
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| | arrMensajes is array of 1 by 3 strings
i is int = 1
SQLExec(sQuery,ds)
WHILE SQLFetch(ds) = 0
arrMensajes[i,1] = SQLGetCol(ds, 1) //id
arrMensajes[i,2] = SQLGetCol(ds, 2) //numero
arrMensajes[i,3] = SQLGetCol(ds, 3) //mensaje
i++
Dimension(arrMensajes, i, 3)
END |
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