Method Exists

Exists(VisualElement, TypeSearch, Predicate<VisualElement>)

Checks if there is aVisualElement.

Declaration

public static bool Exists(this VisualElement host, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<VisualElement> predicate = null)

Parameters

Type	Name	Description
VisualElement	host	VisualElementconsidered as host.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<VisualElement>	predicate	Function to filter the result.

Returns

Type	Description
bool

Exists(VisualElement, string, TypeSearch, Predicate<VisualElement>)

Checks if there is aVisualElementaccording to the filter applied via the selector.

Declaration

public static bool Exists(this VisualElement host, string selector, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<VisualElement> predicate = null)

Parameters

Type	Name	Description
VisualElement	host	VisualElementconsidered as host.
string	selector	The text to be parsed as a selector.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<VisualElement>	predicate	Function to filter the result.

Returns

Type	Description
bool

Exists(IEnumerable<VisualElement>, TypeSearch, Predicate<VisualElement>)

Checks if there is aVisualElement.

Declaration

public static bool Exists(this IEnumerable<VisualElement> hosts, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<VisualElement> predicate = null)

Parameters

Type	Name	Description
IEnumerable<VisualElement>	hosts	List ofVisualElementconsidered as hosts.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<VisualElement>	predicate	Function to filter the result.

Returns

Type	Description
bool

Exists(IEnumerable<VisualElement>, string, TypeSearch, Predicate<VisualElement>)

Checks if there is aVisualElementaccording to the filter applied via the selector.

Declaration

public static bool Exists(this IEnumerable<VisualElement> hosts, string selector, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<VisualElement> predicate = null)

Parameters

Type	Name	Description
IEnumerable<VisualElement>	hosts	List ofVisualElementconsidered as hosts.
string	selector	The text to be parsed as a selector.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<VisualElement>	predicate	Function to filter the result.

Returns

Type	Description
bool

Exists<TResult>(VisualElement, TypeSearch, Predicate<TResult>)

Checks if there is an element.

Declaration

public static bool Exists<TResult>(this VisualElement host, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<TResult> predicate = null) where TResult : VisualElement

Parameters

Type	Name	Description
VisualElement	host	VisualElementconsidered as host.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<TResult>	predicate	Function to filter the result.

Returns

Type	Description
bool

Type Parameters

Name	Description
TResult	Type of the result based on the class.VisualElement.

Exists<TResult>(VisualElement, string, TypeSearch, Predicate<TResult>)

Checks if there is an element according to the filter applied via the selector.

Declaration

public static bool Exists<TResult>(this VisualElement host, string selector, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<TResult> predicate = null) where TResult : VisualElement

Parameters

Type	Name	Description
VisualElement	host	VisualElementconsidered as host.
string	selector	The text to be parsed as a selector.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<TResult>	predicate	Function to filter the result.

Returns

Type	Description
bool

Type Parameters

Name	Description
TResult	Type of the result based on the class.VisualElement.

Exists<TResult>(IEnumerable<VisualElement>, TypeSearch, Predicate<TResult>)

Checks if there is an element.

Declaration

public static bool Exists<TResult>(this IEnumerable<VisualElement> hosts, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<TResult> predicate = null) where TResult : VisualElement

Parameters

Type	Name	Description
IEnumerable<VisualElement>	hosts	List ofVisualElementconsidered as hosts.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<TResult>	predicate	Function to filter the result.

Returns

Type	Description
bool

Type Parameters

Name	Description
TResult	Type of the result based on the class.VisualElement.

Exists<TResult>(IEnumerable<VisualElement>, string, TypeSearch, Predicate<TResult>)

Checks if there is an element according to the filter applied via the selector.

Declaration

public static bool Exists<TResult>(this IEnumerable<VisualElement> hosts, string selector, UIToolkitComponent.TypeSearch searchFrom = TypeSearch.Container, Predicate<TResult> predicate = null) where TResult : VisualElement

Parameters

Type	Name	Description
IEnumerable<VisualElement>	hosts	List ofVisualElementconsidered as hosts.
string	selector	The text to be parsed as a selector.
UIToolkitComponent.TypeSearch	searchFrom	Target children from the parent's container (indirect) or via the hierarchy (direct).
Predicate<TResult>	predicate	Function to filter the result.

Returns

Type	Description
bool

Type Parameters

Name	Description
TResult	Type of the result based on the class.VisualElement.