description

# setInnerHtml method Null safety

void setInnerHtml (

1. String? html,
2. {NodeValidator? validator,
3. NodeTreeSanitizer? treeSanitizer}

)

Parses the HTML fragment and sets it as the contents of this element. This ensures that the generated content follows the sanitization rules specified by the validator or treeSanitizer.

If the default validation behavior is too restrictive then a new NodeValidator should be created, either extending or wrapping a default validator and overriding the validation APIs.

The treeSanitizer is used to walk the generated node tree and sanitize it. A custom treeSanitizer can also be provided to perform special validation rules but since the API is more complex to implement this is discouraged.

The resulting tree is guaranteed to only contain nodes and attributes which are allowed by the provided validator.

See also:

- NodeValidator
- NodeTreeSanitizer

## Implementation

    void setInnerHtml(String? html,
        {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
      text = null;
      if (treeSanitizer is _TrustedHtmlTreeSanitizer) {
        _innerHtml = html;
      } else {
        append(createFragment(html,
            validator: validator, treeSanitizer: treeSanitizer));
      }
    }