KnowledgeInbox

Accessing Window Environment Variable

Window Environment variables can be used to store User specific or Machine specific information. This information is accessible to all windows program. Below is the list of some common windows environment variables
TEMP - Temporary directory path
TMP - Temporary directory path
PATH - Folder locations where a file is searched when the complete path is not provided
windir [...]

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Tags used - access, Accessing, Environment, read, System, update, USER, variable, windows, write

Removing duplicate values from a List of Values

A List of values may contains few duplicates and if we need to find the unique values out of the same then we need some algorithm to filter that out. Consider we have an array of values as give below

Dim arrLOV
 
arrLOV = Array ("Val1", "Vale2", "Val2", "Val1", "Val3", "Val2")

Now the array contains 2 duplicate values [...]

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Tags used - duplicate, duplicates, filter, List, remove, unique, values

Checking Sort Order of List of Values

Arrays containing a list of values can be evaluated for their sort order, whether they contain values in ascending order, descending order or not sorted. To check the same we can use the function given below

‘Function: GetArraySortOrder
‘Author: Tarun Lalwani
‘Website: http://KnowledgeInbox.com
‘Description: Finds the sorting order of a given array
‘Parameters:
‘@arrLOV: The array of values
‘Return value:
‘ 1 - [...]

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Tags used - array, ascending, descending, order, sort, sorting

Comparing 2 List of Values and finding differences

Comparison between 2 different list of values to find the missing and additional parts can be complex task if the algorithm. Let us consider 2 different arrays

Array1 = {"a", "b", "c", "b", "f"}
Array2 = {a", "e", "d", "g"}

Now from visual inspection we can notice that

Array1 is missing “e”, “d” and “g”
Array1 has additional element “c” [...]

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Tags used - array, arrays, between, compare, Comparison, difference, Find, lists, missing, two, values

Maintaining list of class objects created

At times, we might want to maintain a list of all objects which are created for an object. We will not discuss the situations where it would be required, but we will see how it’s done.
To store the list of object we can use the Dictionary objects. When we create classes object the first event [...]

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Tags used - Class, Classes, Class_Initialize, Class_Terminate, Collection, Dictionary, List, Maintain, Maintaining, Nothing, store, Storing

Add date and time using string addition - “2days 1hr 10 min”

Recently while automating an application it was required for me to fill a relative date in one of the place. This meant capturing a reference date from the screen and adding a relative date to the same. The relativity of the date can be expressed in various forms as shown below
1 hr
2 days 3 hours
1 [...]

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Tags used - Add, date, Reference, Relative, time

VBScript Part 1 - Introduction

VBScript is a scripting language. A VBScript can be executed in various ways

Using Windows Script Host (wscript.exe and cscript.exe). Will cover this later
Inside HTML page for IE Browser.
Other host process which allows to execute code in VBScript format (ex - HP QuickTest Pro)

Internal methods and objects
VBScript provides method and objects that can be used [...]

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Tags used - command, CScript, HTML, IE, Introduction, Mercury, VBScript, WScript

VBScript Part 2 - Variables

What is variable?
Variable is a named container used to store values

Declaring a variable
There are three possible ways to declare a variable

Dim <variablename>
Public </variablename><variablename>
Private </variablename><variablename></variablename>

Ex –

Dim x, y, z
Dim a
Dim b, c

Variable naming rules
Variable names should following the below rules

Must not exceed 255 characters.
Must be unique in the [...]

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Tags used - Coding, Const, convention, date, Double, explicit, float, function, int, naming, option, standards, time, VB, VBScript

Getting files from current script location

While running a VBScript file from the WScript host, one might want to access the file located in the same folder as the script. WScript does not run your script keeping the current directory as the folder in which the script located. Using just the file name like “Logs.txt”, “Input.xls” will try to access the [...]

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Tags used - Current, directory, file not found, Folder, InStrRev, location, ScriptFullName

Formatting date and time

Formatting a date/time to the required format is a complex job when working with various times zones or different date formats (Ex - dd/mm/yyyy or mm/dd/yyyy). VB provides a very convenient method named Format to do these formatting. But unfortunately it’s pretty much a missing functionality in VBScript. The code i present in this article [...]

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Tags used - Change, date, format, Now, time, Zone

Reversing words “This is a test” to “test a is This”

This article will demonstrate how to reverse word in a string. VBScript has many string methods like Left, Mid, Right, Split, Join and Len for string manipulation.
Creating a code generic enough to handle such string correctly is a complex task. But the task is much simpler when we use regular expressions (r.e.). The key here [...]

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Tags used - Global, Len, Matches, Mid, pattern, RegExp, regular expression, reverse, Split, String, word, words

Extending Dictionary Object

Dictionary object allows storing key value pairs. A dictionary object can be used for easy lookup of values. Dictionary is a not a QTP specific functionality and is available in normal VBScript as well.
Creating the Dictionary
A dictionary object can be created using CreateObject for COM class “Scripting.Dictionary”. The code below shows how to create the [...]

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Tags used - Check, CreateObject, Dictionary, Exists, Extend, Key, Scripting, Value