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This demo illustrates how the availability of an editor can be controlled on the client side using the client SetEnabled method.

In this example, the choices in the second combo box (“Product”) change dynamically, based on the user’s selection in the first combo box (“Technology”). The Product combo box is not enabled until a selection is made in the Technology combo box, and the third combo box (“Version”) is not enabled until a product is selected in the Product combo box.

Local Copy of this Demo
To inspect the source code for this demo on your machine, you must first install our components via the DevExpress Component Installer.
You can open a local copy of this online demo directly from this webpage (if using v20.2.8, 21.1.4 or higher).
Open CS Solution
Open VB Solution
The source code files for this demo are installed (by default) in the following directories:
\Users\Public\Documents\DevExpress Demos XX.X\Components\ASP.NET\CS\ASPxEditorsDemos
\Users\Public\Documents\DevExpress Demos XX.X\Components\ASP.NET\VB\ASPxEditorsDemos