If using the new style context, re-declare this in your class to be the
React.ContextType
of your static contextType
.
Should be used with type annotation or static contextType.
static contextType = MyContext
// For TS pre-3.7:
context!: React.ContextType<typeof MyContext>
// For TS 3.7 and above:
declare context: React.ContextType<typeof MyContext>
Readonly
propsStatic
Optional
contextIf set, this.context
will be set at runtime to the current value of the given Context.
Usage:
type MyContext = number
const Ctx = React.createContext<MyContext>(0)
class Foo extends React.Component {
static contextType = Ctx
context!: React.ContextType<typeof Ctx>
render () {
return <>My context's value: {this.context}</>;
}
}
The autofocus attribute of the control.
Focuses the list of options when the menu opens.
Enables the case sensitive search icon in the filtering input.
The data source used to generate the list of options.
Disables the filtering of the list of options.
The disabled state of the component
The key in the data source used to display items in the list.
The key in the data source used to group items in the list.
Sorts the items in each group by ascending or descending order.
Control the validity of the control.
The label attribute of the control.
The name attribute of the control.
Sets the open state of the component.
The outlined attribute of the control.
The placeholder attribute of the control.
The placeholder attribute of the search input.
Makes the control a required field in a form context.
Returns the current selection as an array of objects as provided in the data
source.
Enables single selection mode and moves item filtering to the main input.
The key in the data source used when selecting items.
Optional
UNSAFE_Called immediately before mounting occurs, and before Component#render
.
Avoid introducing any side-effects or subscriptions in this method.
This method will not stop working in React 17.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use componentDidMount or the constructor instead
Optional
UNSAFE_Called when the component may be receiving new props. React may call this even if props have not changed, so be sure to compare new and existing props if you only want to handle changes.
Calling Component#setState
generally does not trigger this method.
This method will not stop working in React 17.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use static getDerivedStateFromProps instead
Optional
UNSAFE_Called immediately before rendering when new props or state is received. Not called for the initial render.
Note: You cannot call Component#setState
here.
This method will not stop working in React 17.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use getSnapshotBeforeUpdate instead
Optional
componentOptional
componentCalled immediately after updating occurs. Not called for the initial render.
The snapshot is only present if getSnapshotBeforeUpdate is present and returns non-null.
Optional
componentCalled immediately before mounting occurs, and before Component#render
.
Avoid introducing any side-effects or subscriptions in this method.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use componentDidMount or the constructor instead; will stop working in React 17
Optional
componentCalled when the component may be receiving new props. React may call this even if props have not changed, so be sure to compare new and existing props if you only want to handle changes.
Calling Component#setState
generally does not trigger this method.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use static getDerivedStateFromProps instead; will stop working in React 17
Optional
componentOptional
componentCalled immediately before rendering when new props or state is received. Not called for the initial render.
Note: You cannot call Component#setState
here.
Note: the presence of getSnapshotBeforeUpdate or getDerivedStateFromProps prevents this from being invoked.
16.3, use getSnapshotBeforeUpdate instead; will stop working in React 17
Sets focus on the component.
Optional
getRuns before React applies the result of render
to the document, and
returns an object to be given to componentDidUpdate. Useful for saving
things such as scroll position before render
causes changes to it.
Note: the presence of getSnapshotBeforeUpdate prevents any of the deprecated lifecycle events from running.
Static
_create
The Combo component is similar to the Select component in that it provides a list of options from which the user can make a selection. In contrast to the Select component, the Combo component displays all options in a virtualized list of items, meaning the combo box can simultaneously show thousands of options, where one or more options can be selected. Additionally, users can create custom item templates, allowing for robust data visualization. The Combo component features case-sensitive filtering, grouping, complex data binding, dynamic addition of values and more.