JavaScript/jQuery TreeView Default Item Template
By default, a predefined item template is applied to display the items of this widget. This template is based on certain fields of the data source provided for this widget. Below is the list of these fields. If the default item template is not appropriate for your task, implement a custom item template based on these or other fields of your data source.
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expanded
This field makes sense no matter whether a custom template or the default one is used.
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icon
This option accepts one of the following:
- The icon's URL
- The icon's name if the icon is from the DevExtreme icon library
- The icon's CSS class if the icon is from an external icon library (see External Icon Libraries)
- The icon in the Base64 format
items
When specifying the items field for an item, this item becomes a root item. The child items are displayed using the same default item template as the root items. So specify the fields that take part in the default item template when defining items array objects. Alternatively, you can implement a custom item template.
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selected
This field makes sense no matter whether a custom template or the default one is used.
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template
Whether you use a default or a custom template for widget items, you can specify a specific template for a particular item. To do so, set the template field for the data source object of this item. The following types of the specified value are available.
- Assign a string containing the name of the required template.
- Assign a jQuery object of the template's container.
- Assign a DOM Node of the template's container.
- Assign a function that returns the jQuery object or a DOM Node of the template's container.