The goal of this post is to demonstrate in practice the types of variables you can use when creating a Canvas application.

There are three types of variables in power apps:

• Context : This type of variable are active for as long as you are on a specific screen; if you open another screen, you will not be able to access this variable.
• Global : A global variable can also be accessed from other screens.
• Collections : The Collections are different than Context and Global variables, as you can store more than one items.

For more details about the Power Apps variable types, please check this link: Types of variables

 

The different types of variable through an example:

Context variable

For this example, I have created a new screen with 4 Text labels, 2 Text Inputs and 2 Buttons.

{Get Address}, button code:

UpdateContext({Address: TextInput1.Text})

 

{Get Postal Code}, button code:

UpdateContext({Postal_Code:TextInput2.Text})

Label, code:

"My Address is "& Address & "and my postal code is " & Postal_Code

The above code in action

For more details about context variable, please, check this link: Use a context variable

Global variable

{Get Address}, button code:

Set(GblVAddress, TextInput1.Text)

 

 

{Get Postal Code}, button code:

Set(GblVPostal_Code,TextInput2.Text)

 

Label, code:

"My Address is" & GblVAddress & "and my postal code is " & GblVPostal_Code

 

Global variables, as opposed to context variables, can be accessed via the Global variables menu:

The above code in action

For more details about global variable, please, check this link: Use a global variable

Collections

For this example, I have created a new screen with 2 Text labels, 2 Text Inputs and 1 Button and a Gallery.

{Get Data}, button code:

Collect(colData, {Name: txtName.Text, LastName: txtLastName.Text})

Gallery configuration

1. Insert a new gallery item
2. From the right-hand side, select as a Data source the “colData” collection
2.2 Select on Subtitle1 the “Name” value
2.3 Select on Title1 the “LastName” value

The above code in action

For more details about collection, please, check this link: Use a collection