Class ScriptObject

Defines the core behavior for the HtmlObject class, and provides a base class for browser Document Object Model (DOM) access types.

Inheritance

System.Object

ScriptObject

HtmlObject

ScriptObjectCollection

Implements

System.Dynamic.IDynamicMetaObjectProvider

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: System.Windows.Browser

Assembly: OpenSilver.Browser.dll

Syntax

public class ScriptObject : IDynamicMetaObjectProvider

Properties

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Dispatcher

Gets an instance of the dispatcher.

Declaration

public Dispatcher Dispatcher { get; }

Property Value

Type	Description
Dispatcher	The dispatcher associated with the user interface (UI) thread.

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ManagedObject

Gets the underlying managed object reference of the ScriptObject.

Declaration

public object ManagedObject { get; }

Property Value

Type	Description
System.Object	A managed object reference if the current ScriptObject wraps a managed type; otherwise, null.

Methods

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ConvertTo(Type, Boolean)

Converts the current scriptable object to a specified type, with serialization support.

Declaration

[NotImplemented]
protected virtual object ConvertTo(Type targetType, bool allowSerialization)

Parameters

Type	Name	Description
System.Type	targetType	The type to convert the current scriptable object to.
System.Boolean	allowSerialization	A flag which enables the current scriptable object to be serialized.

Returns

Type	Description
System.Object	An object of type targetType.

Exceptions

Type	Condition
System.ArgumentException	The conversion failed or is not supported.

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ConvertTo<T>()

Converts the current scriptable object to a specified type.

Declaration

[NotImplemented]
public T ConvertTo<T>()

Returns

Type	Description
T	An object of type T.

Type Parameters

Name	Description
T	The type to convert the current scriptable object to.

Exceptions

Type	Condition
System.ArgumentException	The conversion failed or is not supported.

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Finalize()

Frees resources and performs other cleanup operations before the scriptable object is reclaimed by garbage collection.

Declaration

protected void Finalize()

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GetProperty(Int32)

Gets the value of a property that is identified by ordinal number on the current scriptable object.

Declaration

public object GetProperty(int index)

Parameters

Type	Name	Description
System.Int32	index	The ordinal number of the property.

Returns

Type	Description
System.Object	A null reference if the property does not exist or if the underlying ScriptObject is a managed type.

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GetProperty(String)

Gets the value of a property that is identified by name on the current scriptable object.

Declaration

public virtual object GetProperty(string name)

Parameters

Type	Name	Description
System.String	name	The name of the property.

Returns

Type	Description
System.Object	A null reference if the property does not exist or if the underlying ScriptObject is a managed type.

Exceptions

Type	Condition
System.ArgumentNullException	name is null.
System.ArgumentException	name is an empty string.-or-name contains an embedded null character (System.Char.MinValue).

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Invoke(String, Object[])

Invokes a method on the current scriptable object, and optionally passes in one or more method parameters.

Declaration

public virtual object Invoke(string name, params object[] args)

Parameters

Type	Name	Description
System.String	name	The method to invoke.
System.Object[]	args	Parameters to be passed to the method.

Returns

Type	Description
System.Object	An object that represents the return value from the underlying JavaScript method.

Exceptions

Type	Condition
System.ArgumentNullException	name is null.
System.ArgumentException	name is an empty string.-or-name contains an embedded null character (System.Char.MinValue). -or-The method does not exist or is not scriptable.
System.InvalidOperationException	The underlying method invocation results in an error. The .NET Framework attempts to return the error text that is associated with the error.

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InvokeSelf(Object[])

Invokes the current ScriptObject and assumes that it represents a JavaScript method.

Declaration

public virtual object InvokeSelf(params object[] args)

Parameters

Type	Name	Description
System.Object[]	args	Parameters to be passed to the underlying JavaScript method.

Returns

Type	Description
System.Object	An object that represents the return value from the underlying JavaScript method.

Exceptions

Type	Condition
System.InvalidOperationException	The current ScriptObject is not a method.-or-The underlying method invocation results in an error.

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SetProperty(Int32, Object)

Sets the value of a property that is identified by ordinal number on the current scriptable object.

Declaration

public void SetProperty(int index, object value)

Parameters

Type	Name	Description
System.Int32	index	The ordinal number of the property.
System.Object	value	The value to set the property to.

Exceptions

Type	Condition
System.ArgumentNullException	index is null.
System.ArgumentException	index identifies an empty string.
System.InvalidOperationException	A type mismatch exists between the supplied type and the target property.-or-The property is not settable.-or-All other failures.

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SetProperty(String, Object)

Sets a property that is identified by name on the current scriptable object.

Declaration

public virtual void SetProperty(string name, object value)

Parameters

Type	Name	Description
System.String	name	The name of the property.
System.Object	value	The value to set the property to.

Exceptions

Type	Condition
System.ArgumentNullException	name is null.
System.ArgumentException	name is an empty string.-or-name contains an embedded null character (System.Char.MinValue).
System.InvalidOperationException	A type mismatch exists between the supplied type and the target property.-or-The property is not settable.-or-All other failures.

Explicit Interface Implementations

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IDynamicMetaObjectProvider.GetMetaObject(Expression)

Returns the System.Dynamic.DynamicMetaObject responsible for binding operations performed on this object.

Declaration

DynamicMetaObject IDynamicMetaObjectProvider.GetMetaObject(Expression parameter)

Parameters

Type	Name	Description
System.Linq.Expressions.Expression	parameter	The expression tree representation of the runtime value.

Returns

Type	Description
System.Dynamic.DynamicMetaObject	The System.Dynamic.DynamicMetaObject to bind this object.

Implements

System.Dynamic.IDynamicMetaObjectProvider