Pitney-bowes MapXtreme Manual de usuario descargar pdf (Pagina 147)

100

101

Chapter 7: Desktop Applications, Controls, Dialogs, and Tools

Tool Events

MapXtreme v7.1 147 Developer Guide

Tool Events

The MapInfo.Tools namespace supports tool events with information and the ability to cancel the

tool’s operation. A Select Tool’s event lists the items being selected or deselected. Events can be

fired at every stage of use of a particular tool. In your code you can trap certain moments in the

lifecycle of the usage of a tool. Adding code to particular events gives you the maximum flexibility on

customizing the use of each tool in your mapping application.

The events in the namespace are as follows:

FeatureAddingEventArgs This event is fired when an add tool is about to draw

an object.

FeatureAddedEventArgs This event is fired when an add tool has added an

object to a table and map.

FeatureSelectingEventArgs This event is fired when a selection tool is about to

change the selection.

FeatureSelectedEventArgs This event is fired when a selection tool changes the

selection.

FeatureChangingEventArgs This event is fired when a selection tool is about to

change a feature. Use this event to check to see if

the change that is going to happen is valid.

FeatureChangedEventArgs This event is fired after a selection tool changed a

feature.

NodeChangedEventArgs This event is fired when a selection tool alters the

nodes in a selection.

NodeChangingEventArgs Fired when a selection tool is about to change a

node of a selected feature. Use this event to check

to see if the change that is going to happen is valid.

ToolActivatedEventArgs This event is fired when a mouse tool is activated.

ToolActivatingEventArgs This event is fired when mouse tool is about to be

activated.

ToolEndingEventArgs This event is fired when a mouse tool is about to

end. This is a good place to have a new action

begin.

ToolUsedEventArgs This event is fired when a mouse tool is in use. Use

this event to set flags for the beginning, middle, and

end of a the sequence of mouse clicks.

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 639 640

Comentarios a estos manuales

Sin comentarios

Pitney-bowes MapXtreme Manual de usuario Pagina 147

Comentarios a estos manuales

Relacionado con productos y manuales para Software Pitney-bowes MapXtreme