Tag Archives: powerapp

Effortlessly Trigger a Flow from a Power App: A Simple Step-by-Step Example

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In this post, I want to show how easy it is to call a Flow from a Power App. The goal of the Power App is to pass values to the Flow, have it add them together, and return a result.

Starting from the Power Apps portal
click Create –> Blank app, Black canvas app, name the app, for the format option, select tablet, then click Create button.

Power App overview:

Field TypeField NameOption
Text InputTextInputOneFormat: Number
Text InputTextInputTwoFormat: Number
LabelLabelNumberOne
LabelLabelNumberTwo
LabelLabelTotal
LabelLabelMathResult
ButtonButtonCalc

Flow overview:
The Flow can be created directly in the Power App designer or the Power Platform portal. For this example, I’m going to use the portal.

From https://make.powerapps.com,
Click on New flow and select Automated cloud flow

Click the Skip button at the bottom of the window (this will make sense in a min.)

With the Flow designer open, click PowerApps or search for it, then click on PowerApps (V2)

In this step, add two number inputs to the action

I named my number inputs as follow: inputNumberOne and inputNumberTwo

The Flow will respond to the app using the Repost to a PowerApp or flow action. For the output, again select number, and I named mine outputNumber .

the formula should be: add(triggerBody()[‘number’],triggerBody()[‘number_1’])

Name the Flow as Flow do Math, and save it. You can test the Flow simply by clicking the Test button and supplying two input values. The Flow can be named something different, but this name aligns with the below example.

Back in the PowerApp, click the Power Automate icon.

With the Power Automate window open, click on Add flow and select the newly created Flow, or search for it and select it.

On the app design surface, select the button and update its OnSelect property to:
Set(varNumber, FlowDoMath.Run(TextInputOne.Text,TextInputTwo.Text).outputnumber)

Select the LabelMathResult field and set its Text value to varNumber

Run the app, input values in the text fields, then click the button.

What just happened?


The values of the two text input fields were passed to the Flow, it added them together and returned the value in the outputnumber field; that value was then set to the varNumber variable.

In future posts, I will dive deeper into more complex examples.



Power App and SharePoint List Form Hide Field on New Item Form

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How do you hide a field on a PowerApp when opening a new form? The approach below uses a single screen form instead of multiple screens for the various forms.

I started by creating a new SharePoint list and added two text fields:
Not on New Form
On New Form
Using the customize form option, I entered the Power App designer.

When the PowerApp designer opens, it will look like this:

To help see what’s going on with the form mode, add a text label to the form and set its Text property to: "Form Mode: " & Text(SharePointForm1.Mode)

Select the field (Data Card) that should not appear on the new item form, then select the Visible property. For the Visible property, enter the following: If(SharePointForm1.Mode = 1, false, true) . If your SharePointForm1 is named something else, use it instead of the value I presented.

Breaking down the formula a little: If the SharePoint form mode is equal to 1, visible should be false, else true.

Save and publish the app, then check if it’s functional as planned.

New item form with Form Mode: 1

Display item form with Form Mode: 2

Edit item form with Form Mode: 0