Class MoveItemUp<T>

A view command that moves the selected items up (decrementing their index) within a collection of items

Works against entities with a sequence property marked with the EntitySequenceAttribute

Inheritance
object
BaseHasChildren<EPCommandWithDescriptor>
EPCommand
EPCommandWithDescriptor
ViewCommand
MoveItemUp<T>
Implements
Inherited Members
Namespace: LemonEdge.Client.Core.Commands.ViewCommands
Assembly: LemonEdge.ClientCore.dll
Syntax
public class MoveItemUp<T> : ViewCommand, IHasChildren<EPCommandWithDescriptor>, IHasChildren, IDisposable, IEPCommandWithDescriptor, IEPCommand, ICommand, ICommandDescriptor
Type Parameters
Name Description
T

The type of entity this command works against

Constructors

MoveItemUp(IRootController, IModelLayoutDisplayer, BaseGridControllerAny<T>)

Creates a new MoveItemUp command

Declaration
public MoveItemUp(IRootController root, IModelLayoutDisplayer owner, BaseGridControllerAny<T> controller)
Parameters
Type Name Description
IRootController root

The root controller, for service access.
IModelLayoutDisplayer owner

The owning host context for this command
BaseGridControllerAny<T> controller

The gridcontroller this command works against to move the selected items up within

Properties

Description

A user friendly description of this command

Declaration
public override string Description { get; }
Property Value
Type Description
string
Overrides

IconID

The image to use for this command, either a ImageType or ImageID

Declaration
public override Guid IconID { get; }
Property Value
Type Description
Guid
Overrides

IsQuickAccessCommand

Indicates this command should also be available in a quick access manner if the ui permits it to be highlighted and seperated for quick access among a group of other commands

For instance in the desktop application view commands are accessible from a drop down menu by default, but if this is true they are also directly accessible from the view itself

Declaration
public override bool IsQuickAccessCommand { get; }
Property Value
Type Description
bool
Overrides

OverlayIconID

On some clients another image can be overlayed on the bottom right of the main icon (for indicating add, remove, etc)

This optional overlay image can be specified here, either a ImageType or ImageID

Declaration
public override Guid? OverlayIconID { get; }
Property Value
Type Description
Guid?
Overrides

Title

The title of this command

Declaration
public override string Title { get; }
Property Value
Type Description
string
Overrides

ToolTip

A user friendly tool tip for this command functionality, by default the Description

Declaration
public override string ToolTip { get; }
Property Value
Type Description
string
Overrides

Methods

InternalCanExecuteAsync(object)

Returns true if there are selected items in the grid and they are not the first item in the grid (as they can not be moved up anymore)

Declaration
public override Task<bool> InternalCanExecuteAsync(object parameter)
Parameters
Type Name Description
object parameter
Returns
Type Description
Task<bool>

True if there are selected items in the grid and they are not the first item in the grid (as they can not be moved up anymore)
Overrides

InternalExecuteAsync(object)

Retrieves all the items selected to move up, then decrements their sequence number, and increments all those items below them. Updates the grid display to show the items having moved up.

Declaration
public override Task InternalExecuteAsync(object parameter)
Parameters
Type Name Description
object parameter

The command parameters
Returns
Type Description
Task

A task indicating the completion of the operation
Overrides

MoveItemToItem(T, T)

Declaration
public void MoveItemToItem(T item, T toItem)
Parameters
Type Name Description
T item
T toItem

Implements

Extension Methods