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Overview
In this course students learn the
fundamentals of VBA application development,
Object-oriented programming concepts, and the
specifics of working with ArcObjects. Students learn
to use VBA development tools including VB editor,
customize dialog box, and online help resources.
They also learn the syntax for writing simple VB
statements, how to write branching and looping
structures, and how to design user forms.
Object-oriented programming concepts are described
including the advantages of COM in which all
ArcObjects classes are based. Interface programming,
which may be new to seasoned programmers, is an
important aspect of programming with the ArcObjects
library and is covered in detail. ArcGIS Desktop
software Programs (ArcView 8,ArcEditor 8, and
ArcInfo 8) share the same architecture, and the
knowledge gained in this course applies to all
three. Class time is mostly spent doing hands-on
programming exercises, where students write code
that exposes them to many typical GIS programming
tasks as well as to the most commonly used
ArcObjects classes. Upon finishing the course,
students will have plenty of sample code from which
they can build their own applications.
Audience
For those who work with ArcMap
and ArcCatalog on a technical level (analysts,
programmers, and project managers) but may be new to
programming with VBA. It is ideal for users who want
to increase productivity by extending ArcGIS
applications and for developers who want to create
custom applications using VBA.
Goals
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Customize the GUI
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Learn
VBA fundamentals
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Learn
Object-oriented programming concepts
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Get
help for writing code
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Navigate the ArcObjects OMD
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Programming with ArcMap objects
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Programming with ArcCatalog objects
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Programming with geodata, display, and geometry
objects
Topics
VB development environment:
Customizing the user interface and
writing and debugging code
VB language fundamentals: VB
syntax, code storage, VB functions, branching and
looping, and creating user forms
Object-oriented programming
concepts:
Objects and
classes; class libraries; methods, properties, and
events
COM: Advantages of COM, defining
a COM class, and interface programming
Reading OMDs: Class
relationships, class types, and using diagrams to
write code
Maps and layers: Accessing maps
and layers, adding a layer to ArcMap, and
classifying and symbolizing layers
Customizing ArcCatalog:
Manipulating files in the catalog and defining file
types to be displayed
Working with data: Accessing
data sets on disk, creating new data, editing data,
and applying a domain to a geodatabases field
Geometry:
Creating various types of geometry,
displaying geometry on the display, storing
geometry, and spatial operations
Spatial and attribute selections:
Accessing a user selection, defining an
attribute or spatial query, and processing a subset
of records
Layouts: Programmatically
formatting a map layout, adding elements, defining
symbols and colors for map elements, and accessing
items from the ArcMap style gallery
Creating tools: Getting user
input, transforming mouse input to map units and
working with the display
Programming ArcObjects events:
Outbound versus inbound interfaces, finding events
on OMDs, and accessing an object’s outbound
interface
Prerequisites
Introduction to
ArcGIS Part 1 (for ArcView 8,ArcEditor 8, and
ArcInfo 8) or have
equivalent knowledge
Students should know the
following:
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Declare and use variables
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Write
function and sub procedures
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Use
conditional statements (i.e. If, Then, Else,
Select Case)
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Work
with loops (Do and While loops)
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Create
forms, add controls, and write event
procedures
If the above is
not known, an introductory course in VB/VBA must
be completed before the start of the
course
Duration:
Five days
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