Web Automation Using Vba

8/2/2019 Web Automation Using Vba

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By Rohit Hambar


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What is VBA ? Macros

Example


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Visual Basic for Applications (VBA) is animplementation of Microsoft's event drivenprogramming language Visual Basic 6 and its

associated integrated developmentenvironment (IDE), which are built into mostMicrosoft Office applications.

VBA enables building user defined functions,

automating processes and accessing WindowsAPI and other low-level functionality throughdynamic-link libraries (DLLs).


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It can be used to control many aspects of thehost application, including manipulating userinterface features, such as menus and toolbars,

and working with custom user forms or dialogboxes.

VBA can also be used to create import andexport filters for various file formats, such as

OpenDocument (ODF).


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If you need to do repeated tasks in excel every day,then it is always recommend to automate suchtasks so that you can save time and energy.

Macros are a great way of automating tasks inExcel, we have already covered a basic tip onrecording and using Macros. Macros basically addVB code to your excel sheet.

Whenever you create a new Macro, Excel addsvisual basic code at the back-end, so whenever yourun a Macro, this VB code is executed and you getthe results on the screen.


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To open Google Search page in IE using VBAfor input string.

First thing to know is how to open IE .The best

way is probably to create the object and make itvisible. Like this:

Dim i As Long

Dim IE As ObjectDim objElement As ObjectDim objCollection As ObjectSet IE = CreateObject("InternetExplorer.Application")IE.Visible = True


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Values are stored in a variety of elements inHTML. They can be in tables, textboxes, links,

and others. Regardless of where the targetvalue is, you need to know how to reference anHTML control. The most common way isprobably by it's ID.

Find 2 input tags:' 1. Text field'

'' 2. Button'


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How do I put a value into a texbox?Say you want to dynamically put a value in the

Google search box. You would need to use thiscode.


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Set objCollection =IE.document.getElementsByTagName("input")

i = 0While i < objCollection.Length

If objCollection(i).Name = "s" Then

' Set text for searchobjCollection(i).Value = "india"

ElseIf objCollection(i).Type = "submit" And _

objCollection(i).Name = "" Then

' "Google Search" button is foundSet objElement = objCollection(i)

End IfEnd Ifi = i + 1

Wend

objElement.Click = i


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Wait when IE is busy.

Clean objects which created.

Do While IE.Busy

Application.Wait DateAdd("s", 1, Now)Loop

' Show IEIE.Visible = True

' Clean upSet IE = NothingSet objElement = Nothing

Set objCollection = Nothing

Application.StatusBar = ""End Sub


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This example display Google Search results

for input string India.


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Web Automation Using Vba