CustomLinkPropertyToField¶

Qualified name: delphifmx.CustomLinkPropertyToField

class CustomLinkPropertyToField¶

Bases: LinkPropertyToFieldDelegate

Wrapper for Pascal class TCustomLinkPropertyToField

Methods

`BindMethodsToEvents`	Connects methods to component events if they are named using the following pattern: Prefix_ComponentName_EventName.
`CanActivate`	Lets the wrapper binding component indicate whether a delegate (or contained) binding component may be activated.
`ClearGeneratedExpressions`	Clears all the generated bindings expressions, at once, for the quick binding component this delegate wraps onto.
`GenerateExpressions`	Automatically generates the bindings expressions for the quick binding component this delegate wraps onto.
`GetDelegates`	Gets the delegate (or contained) binding components that this wrapper binding component uses to execute expressions and respond to user input.
`GetParentComponent`	Returns the parent of a component.
`HasParent`	Indicates whether the component has a parent to handle its filing.
`Loaded`	Initializes the component after the form file has been read into memory.
`RequiresControlHandler`	Used internally for observing purposes.

Attributes

`Active`	bool:
`AutoActivate`	bool:
`BindLink`	CustomBindLink:
`BindingsList`	Specifies a list that holds the binding expressions.
`Category`	Specifies a category for this component.
`ClassName`	Returns the TObject.ClassName
`ComObject`	Specifies the interface reference implemented by the component.
`Component`	Specifies the component that this wrapping binding component references.
`ComponentCount`	Returns the owned component count
`ComponentIndex`	Indicates the position of the component in its owner's Components property array.
`ComponentProperty`	Specifies the name of the property of the component that this wrapping binding component references.
`ComponentState`	Describes the current state of the component, indicating when a component needs to avoid certain actions.
`ComponentStyle`	Governs the behavior of the component.
`Components`	Returns an iterator over the owned components
`ControlComponent`	Specifies the component that will be bound to the source component, by means of LiveBindings.
`CustomFormat`	str:
`DataSource`	Specifies a TDataSource object to which this delegate component links.
`DesignInfo`	Contains information used by the Form designer.
`DisplayName`	Returns a string containing the name of this component.
`FieldName`	Specifies the field name that this wrapping binding component references.
`Index`	Returns the index of this component in the bindings list.
`LookupDataSource`	BaseLinkingBindSource:
`LookupKeyFieldName`	str:
`LookupValueFieldName`	str:
`Name`	Specifies the name of the component as referenced in code.
`Observers`	Indicates the TObservers object added to the TComponent.
`Owner`	Returns the Component Owner
`Tag`	Stores a NativeInt integral value as a part of a component.
`VCLComObject`	Represents information used internally by components that support COM.

Active¶: bool:

AutoActivate¶: bool:

BindLink¶: CustomBindLink:

BindMethodsToEvents(prefix)¶: Connects methods to component events if they are named using the following pattern: Prefix_ComponentName_EventName. Example: def handle_button1_OnClick(Sender): pass The function returns a list of tuples. Each tuple contains the name of the component, the name of the event and the method object assigned to the event. Note that the prefix parameter is optional and will default to “handle_”.

CanActivate(Sender: Component) → bool¶: Lets the wrapper binding component indicate whether a delegate (or contained) binding component may be activated. The CanActivate method returns True if the delegate (or contained) binding component can be activated, False otherwise.

ClearGeneratedExpressions(Sender: Component) → None¶: Clears all the generated bindings expressions, at once, for the quick binding component this delegate wraps onto. For more information regarding the quick binding components, please refer to the New LiveBinding topic, the Quick Binding Components Reference section.

ComponentCount¶: Returns the owned component count

Components¶: Returns an iterator over the owned components

CustomFormat¶: str:

GenerateExpressions(Sender: Component) → None¶: Automatically generates the bindings expressions for the quick binding component this delegate wraps onto. For more information regarding the quick binding components, please refer to the New LiveBinding topic, the Quick Binding Components Reference section.

GetDelegates()¶: Gets the delegate (or contained) binding components that this wrapper binding component uses to execute expressions and respond to user input.

GetParentComponent()¶: Returns the parent of a component.

HasParent()¶: Indicates whether the component has a parent to handle its filing.

Loaded()¶

Initializes the component after the form file has been read into memory. Do not call the protected Loaded method. The streaming system calls this method after it loads the component’s form from a stream. When the streaming system loads a form or data module from its form file, it first constructs the form component by calling its constructor, then reads its property values from the form file. After reading all the property values for all the components, the streaming system calls the Loaded methods of each component in the order the components were created. This gives the components a chance to initialize any data that depends on the values of other components or other parts of itself.

Note: All references to sibling components are resolved by the time Loaded is called. Loaded is the first place that sibling pointers can be used after being streamed in. As implemented in TComponent, Loaded clears the csLoading flag in the ComponentState property, indicating that the component is no longer loading.

Warning: Loaded may be called multiple times on inherited forms. It is called every time a level of inheritance is streamed in. Do not allocate memory in an overridden Loaded method without first checking that the memory has not been allocated in a previous call.

LookupDataSource¶: BaseLinkingBindSource:

LookupKeyFieldName¶: str:

LookupValueFieldName¶: str:

Owner¶: Returns the Component Owner

RequiresControlHandler()¶: Used internally for observing purposes.