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DP 101 in 60 simple slides

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What is DP?

DP stands for

Descriptive Programming

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But what ISDP?

Its a cool way to work without QTPs

Object-Repository (OR)

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Why would I want to do that?

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Many reasons

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You have to

Functions & Recovery scenarios workwith different actions

Different actions = Different ORs

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Do I know you?

Cant be sure

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You have to

Cant record certain objects

Auto-hide panels

Objects with changing hierarchiesNested inner-objects, Sub menus

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Hold still, damnit!

Even when you think you got it, all

the properties turn out null

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Simplicity

Why kill a fly with an atom bomb?

No need to use the OR for every one-time click buttonin the application

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And,You can do VERY cool things with DP

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OK, bring it on

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First, we need to better understandthe Object Repository

What the OR is

How does the OR work

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I thought DP is all aboutNOT using the OR

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Well, yes, but under the hood, DP &

the OR work the same way

To understand the OR, is to understand DP

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What is the OR?

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A mysterious beast that recordsobjects, in order to use them later

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What is to record an object?

Write down how to identify it

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Who are you?

=

How can I identify you?

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Identification is done withproperties and values

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Who are you?

=Your height = 400

Your title = NotePad

You are visible (=True)

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So, What IS the OR?

Collections of properties &

corresponding valuesEach collection represents an object

No mysterious beast here

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OK, So what IS DP?

DP is a way for specifying the properties & valueswithout using the OR interface

No mysterious beast here, either

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OK, I get it, theres nothing more than

properties and valuesCan we get on with it?

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How do I actually use DP?

There are two ways

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1Throw the properties and valuesstraight into a command

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Its the good old syntax you know, except the

string between the () is not the OR name.

Its the property:=value identification string

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Thats kinda restrictive

What if I want to use multipleidentification properties?

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No problem:

VBWindow(height:=400, title:=New Document).Maximize

You can use as many properties as you like

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All fine and well, but what if I want touse regular expressions?

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No problem:

VBWindow(title:=.*Document.*).Maximize

ID strings are automatically interpreted as regular

expressions

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2Throw the properties & values into adescription object, and throw IT intothe command

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Here also, all the values are interpreted asregular expressions. To turn it off, use

oDesc(Property1).RegularExpression = False

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Method 1 is faster, best used for oneor two commands, tops

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When you want to execute multiple commands on an

object, method 2 is a better choice by far

(allows one-time definitions, multiple uses)

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You can use DP with OR

VBWindow(OR).VBButton(text:=OK).Click

Or (when oDesc is a description object):

VBWindow(OR).VBButton(oDesc).Click

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But, you can only start from OR, and move to DP

So this will not work:

VBWindow(title:=notgood).VBButton(clickme).Click

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And thats about it

You can use each of the methods (or combine them), and youll

be able to use objects that are not in the OR

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You said I could do reallycool stuff with DP!

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Right you are

Well cover some of the more popular

tricks and tips

These examples are only the tip of the iceberg. Playwith them and see the true power of DP

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The power of the string

DP is nothing more than simple strings

We can do such interesting things with strings

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The power of the string

Say we got an app with 4 checkboxes, check0, , check4

We can set all of them with a nice simple loop:

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The power of the string

Very complex identification tasks can be done viastrings manipulation

Try different variations for yourself

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Solving double objects

When QTP finds two object which match the samedescription, it freezes

This kinda sucks

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?

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DP has a magic property: index, which allows us to

tell the double objects apart

Index is a zero-based counter

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All is well

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Getting objects

collectionsThis feature is so cool, deserves a title on its own

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THE coolest thing you can do with DP, is to get acollection of all the objects that math an identification

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I dont know who you are, or how many are you,

but I want to mark all of you!

Regular DP wont help - Dont know how to

identify each checkbox

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Object collections to the rescue!

Step 1: define a description object

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Object collections to the rescue!

Step 2: get all matching objects

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Object collections to the rescue!

Step 3: Use the collection

oChildren now holds a collection of all the checkboxesSo the first checkbox is accessed by: oChildren(0)

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What can we do with it?

Anything we want

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Example for common uses

Mark all Checkboxes

Mark all checkboxes with a certain property (even RO)

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OK, this is indeed cool, but it only gets us the innercontrols of a given window.

Can we also get the applications top level windows?

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Sure

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So, With DP we can work with no OR

Sometimes we have to use it

Other times its just more fun and useful

DP also throws in a lot of extras that make it aninseparable part of good QTP automation

Taste it, Experience it, Learn it, Use it, Love it

Its worth your while

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And that was DP in 60 slides