TextArea HtmlHelper Overview
The Telerik UI TextArea HtmlHelper for ASP.NET Core is a server-side wrapper for the Kendo UI TextArea widget.
The TextArea provides a set of default API configuration options that can be set during its initialization such as value, placeholder, and so on.
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Basic Configuration
The following example demonstrates the basic configuration for the TextArea.
@(Html.Kendo().TextArea()
.Name("textarea") // The name of the TextArea is mandatory. It specifies the "id" attribute of the TextArea.
.Value("John Doe") // Set the value of the TextArea.
.Rows(5) // Sets the number of rows
)
Functionality and Features
Events
Here is a demo on using some basic events of the TextArea. For a full list, refer to the TextArea events documentation in the API section.
The following example demonstrates how to subscribe to events by a handler name.
@(Html.Kendo().TextArea()
.Name("textarea")
.Events(e => e
.Change("textarea_change")
)
)
<script>
function textarea_change() {
// Handle the change event.
}
</script>
Referencing Existing Instances
To reference an existing Telerik UI TextArea instance, use the jQuery.data() method. Once a reference is established, use the TextArea client-side API to control its behavior.
The following example demonstrates how to access an existing TextArea instance.
// Place the following after your Telerik UI TextArea for ASP.NET Core declaration.
<script>
$(function() {
// The Name() of the TextArea is used to get its client-side instance.
var textarea = $("#textarea").data("kendoTextArea");
});
</script>