Custom Disabled Dates - ASP.NET AJAX Calendar Control Demo

Disabled dates are defined by custom rules

October 2025

	Sun	Mon	Tue	Wed	Thu	Fri	Sat
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

Disabled dates are defined by a list

October 2025

	Sun	Mon	Tue	Wed	Thu	Fri	Sat
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

- Description
- Description
- ASPX
- ASPX
- C#
- C#
- VB
- VB

The DevExpress ASP.NET Calendar (ASPxCalendar) control allows you to disable the selection of specific days by end-users. To specify the dates to be disabled, the control provides the following two approaches, which can be used together or separately.

The client-side CustomDisabledDate and server-side CustomDisabledDate events allow you to disable the selection of dates when they can be defined by custom rules. In this demo, the leftmost calendar control uses these events to disable all dates that fall on a Wednesday.
The DisabledDates collection allows you to disable random dates. In this demo, the rightmost calendar control uses this collection to specify a list of disabled dates.

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

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