Gets or sets a value that specifies the initial visibility state of an extension on the client.
true to make an extension initially displayed on the client; false to render the extension on the web page, but make it initially hidden on the client side.
Use the ClientVisible property to define a extension's initial visibility state. The extension's visibility can then be dynamically changed on the client side using the ASPxClientControlBase.SetVisible method.
If an extension server's Visible property is set to false, the extension is not rendered on the web page at all, so it can't be manipulated on the client side.