microsoft / microsoft/AdaptiveCards
Input Number Triggering Validation when empty and isRequired false
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- Dominant language
- C#
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Description
Problem Description
When we have Input Number with Max or Min field set but isRequired set to false we should be able to submit with empty number field similar to Date and Time input. But this is not the case with Number Input, instead validation occurs as if isRequired is set to true.
I have attached a JSON with Number Input and Date Input. Both of these components have min and max properties set to some values. When I try to submit without entering anything validation occurs only for Number Input. Is there any reason for this behavior?
Card JSON
{
"type": "AdaptiveCard",
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"version": "1.3",
"body": [
{
"type": "Input.Number",
"placeholder": "Placeholder text",
"id": "number",
"min": 1,
"max": 10,
"label": "Number Input, Min: 1, Max: 10"
},
{
"type": "Input.Date",
"id": "date",
"min": "2023-01-01",
"max": "2023-12-31",
"label": "Date Input, Min: 1-Jan-2023, Max: 31-Dec-2023"
}
],
"actions": [
{
"type": "Action.Submit",
"title": "Action.Submit"
}
]
}
Screenshot

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the supplied Adaptive Card JSON and compare empty Input.Number validation with Input.Date when min and max are set and isRequired is false. Trace the validation entry point used for these inputs, then verify that an empty optional number submits successfully while required and out-of-range validation still behaves correctly.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100