Replace old data binding chapters with updated ones

* Add documentation about Fields for the data binding chapter
* Add documentation about form binding for the data binding chapter
* Add documentation about data sources for the data binding chapter

Change-Id: I99297f2ebd3d874bd78569fd8d05bc649654c91d

1 files changed, 20 insertions, 0 deletions

diff --git a/documentation/datamodel/datamodel-selection.asciidoc b/documentation/datamodel/datamodel-selection.asciidoc
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+---
+title: Selecting items
+order: 5
+layout: page
+---
+
+[[datamodel.selection]]
+= Selecting items
+
+////
+TODO
+
+* A Listing may let the user mark one or several of its items as selected.
+* Some listings only support having one item selected at a time
+** Code example: Setting, getting and reacting to events from a NativeSelect
+** Design question: Is nullSelectionAllowed a feature of each component or a feature of the selection model?
+* Other listings can be configured to allow selecting one or many items. Depending on how it is configured, it uses a different selection model type for working with the selection.
+** Code example: OptionGroup in single / multi mode. Using different selection model types to access the selection.
+** Code example: Using each selection model type with a Binder
+////