Sum of different fields values

[cooltechie]

Hi,

I have field 1, field 2, field 3 and I would like to set field 4 = field 1 + field 2 + field 3

How do I set this in Power Apps?

[dinusc]

Hello @cooltechie,

I prepared a small demo for solving this:

1. Create an empty app

2. Add an empty vertical gallery control (Gallery1) and a button control (Button1)

3. Button1.OnSelect=ClearCollect(cc, {a:1, b:11}, {a:2, b:12}, {a:3, b:13}, {a:4, b:14})  
    *This means select the Button1 control, find its "OnSelect" property and paste ClearCollect(cc, {a:1, b:11}, {a:2, b:12}, {a:3, b:13}, {a:4, b:14}) into it.

4. Add 3 Label controls into your Gallery (Label1, Label2 and Label3). Note that those controls should be added inside your gallery, not on screen level.

5. Set Gallery1.Items=AddColumns(cc, "Sum", Sum(a, b))

6. Set Label1.Text=ThisItem.a
    Label2.Text=ThisItem.b
    Label3.Text=ThisItem.Sum

7. Preview the app and click on the button.

[samuelJ · Accepted solution]

Please clarify "field"? A field is not one of the control or text types.  I will assume you have either a label or a text input.  The text property of these are read as strings and not numbers (values).  I am also assuming your "field 4" is a label.

Set the text property of the label you want to be the sum to:

Value(label1.text) + Value(label2.text)

If the assumptions are wrong, please provide more information.  

[cooltechie]

Actually I am using SharePoint list field values. May be I should use a calculated field to sum the total

[dinusc · Accepted solution]

You could use SharePoint calculated fields or you could use my example above and replace the test source with your SharePoint source and adjust the field names accordingly. By "Field" I mean the column name. For example, in the following record: {a:1, b:2} the field names are "a" and "b" and the record field values are correspondingly 1 and 2