Increase a value using a Custom Button

ABOUT

By using logic and rules in your form, you can use a Custom Button to increase a value.  For example, in an inspection, you may need to keep track or count specific items.  In this scenario, a Custom Button can be selected by a mobile user to increase a value and count items.  This is one of many uses of incorporating a Custom Button into your form.

HOW TO SET UP A CUSTOM BUTTON TO COUNT 

Step 1. Add a textbox into your form which will contain the item value.

Select the Textbox, and go to Logic > FIELD PROPERTIES, and make the Default Value '0' for the appropriate field; in this case, textbox1. Now, each time a new form draft is opened on your device, the Textbox value will now begin at zero

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Step 2. Configure a Custom Button

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After adding a custom button in your form, select it to see it's properties.  Here you can change the label and style of the button, but for this example, select Logic > NEW RULE.  In this scenario, I will create a rule so that each time I select the Custom Button, my Textbox value will increase by 1.

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Leave all fields default besides the values under DO THIS:

Action - Set another field's value; this will happen when the button is selected
Set value of - Select the field that corresponds to your Textbox (in my case, textbox1)

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The last thing you need to do is enter a number formula for the Custom Button:
number(../textbox1) + number(1)

Note: Dropdowns Insert formula and Insert field are there to help create the action formula if needed.

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Pictured above is an example of the counter button and value as seen on a device; each time the button is selected, the Number goes up by one

 

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