Transcript Introduction to ASP.NET - Western Washington University

Data Listing Web Controls
MacDonald Ch. 13-14
MIS 324
Professor Sandvig
Outline
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Web Controls Overview
Tabular
• Repeater
• DataList
• GridView
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Single Record
• FormView
• DetailsView
Web Controls Overview
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Classes all located in
system.web.ui.webcontrols
namespace
• Documentation
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Too many controls to cover
• New controls added each version
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Focus on essential controls &
concepts
Web Controls Overview
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Simple Controls
• Display single items
• Correspond to HTML tags
• textbox, radiobutton, checkbox, button…
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List Controls
• Name/Value pairs
• RadioButtonList, CheckBoxList, Dropdown List
Web Control Overview
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Tabular Controls
• Display > 1 column
• DataList, GridView, Repeater
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Single Record Controls
• FormView
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Templates
• Use to describe data format
Tabular Controls
Display multiple columns of data
• GridView
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Display data in table format
Most features – editing, paging, sorting
Constraint: one data item per cell
• DataList
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No default format – must use templates
Very flexible formatting
Editing features
• Repeater
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Read only, most efficient for data display
No default format – must use templates
Tabular Controls
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Consist of rows and fields
Fields may contain other controls
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Buttons
Hyperlinks
Textboxes
DropDownLists
Other tabular controls
Need to access control properties
• “FindControl” method
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Handle control events
• Events “bubble up” to parent control
Tabular Controls
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DataList Control
• Very flexible format
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Template required
• Supports editing
• Repeat columns property
• Example: DataListing (source)
• Web.config source
Summary
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Data Access
1.Programmatic
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Connection & command objects
2.Declarative
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Drag & drop via VS
Data listing server controls
• List controls
• Tabular Controls
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Next: two-way databinding