TreeView TagHelper Overview
The Telerik UI TreeView TagHelper for ASP.NET Core is a server-side wrapper for the Kendo UI TreeView widget.
The TreeView displays hierarchical data in a traditional tree structure.
Initializing the TreeView
The following example demonstrates how to define the TreeView by using the TreeView TagHelper.
<kendo-treeview name="treeView1">
</kendo-treeview>
Basic Configuration
The TreeView TagHelper configuration options are passed as attributes of the tag. You can configure the items by using a nested <items> tag and also bind the widget to <hierarchical-datasource>.
<kendo-treeview name="treeview2" datatextfield="FullName">
<hierarchical-datasource>
<transport>
<read url="https://demos.telerik.com/kendo-ui/service/Employees" datatype="jsonp" />
</transport>
<schema type="json">
<hierarchical-model id="EmployeeId" has-children="HasEmployees">
</hierarchical-model>
</schema>
</hierarchical-datasource>
</kendo-treeview>
<kendo-treeview name="treeView1">
<items>
<treeview-item text="Web Site" expanded="true" sprite-css-class="folder">
<items>
<treeview-item text="images" expanded="true" sprite-css-class="folder">
<items>
<treeview-item text="logo.png" sprite-css-class="image"></treeview-item>
</items>
</treeview-item>
<treeview-item text="resources" expanded="true" sprite-css-class="folder">
<items>
<treeview-item text="pdf" expanded="true" sprite-css-class="folder">
<items>
<treeview-item text="prices.pdf" sprite-css-class="pdf"></treeview-item>
</items>
</treeview-item>
</items>
</treeview-item>
<treeview-item text="index.html" sprite-css-class="html"></treeview-item>
</items>
</treeview-item>
</items>
</kendo-treeview>
@(Html.Kendo().TreeView()
.Name("treeview")
.Items(treeview =>
{
treeview.Add().Text("My Web Site")
.SpriteCssClasses("folder")
.Expanded(true)
.Items(root =>
{
root.Add().Text("images")
.Expanded(true)
.SpriteCssClasses("folder")
.Items(images =>
{
images.Add().Text("logo.png")
.SpriteCssClasses("image");
});
root.Add().Text("resources")
.Expanded(true)
.SpriteCssClasses("folder")
.Items(resources =>
{
resources.Add().Text("pdf")
.Expanded(true)
.SpriteCssClasses("folder")
.Items(pdf =>
{
pdf.Add().Text("prices.pdf")
.SpriteCssClasses("pdf");
});
resources.Add().Text("zip")
.SpriteCssClasses("folder");
});
root.Add().Text("about.html")
.SpriteCssClasses("html");
root.Add().Text("index.html")
.SpriteCssClasses("html");
});
})
)