# InputsDialogValidationContext.addValidationError

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Defined on: [InputsDialogValidationContext](/reference/api/typescript/aspire.hosting/inputsdialogvalidationcontext.md)
- Version: `13.4.0`
- Kind: `method`

Adds a validation error for the input with the specified name.

## Definition

```typescript
interface InputsDialogValidationContext {
  // ... omitted for brevity
  addValidationError(
      inputName: string,
      errorMessage: string): void;
}
```

## Signature

```typescript
addValidationError(
    inputName: string,
    errorMessage: string): void
```

## Parameters

- `inputName` (`string`)
- `errorMessage` (`string`)

## Defined on

- [InputsDialogValidationContext](/reference/api/typescript/aspire.hosting/inputsdialogvalidationcontext.md) -- `handle`