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Editing Restrictions

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po
po
x
Text
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po
Object
Line style
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Line width
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-
popo
Connector
Type
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Start
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End
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Layered
Tree
Page
Size
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Orientation
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po

The DevExpress ASP.NET Diagram (ASPxDiagram) control allows you to restrict specific edit operations. To prohibit an operation, set the corresponding Allow{Operation} property to false.

In this demo, the RequestEditOperation event handler implements custom logic to determine whether an operation is allowed. The reason event parameter indicates whether the event was raised by user actions or a UI update. If a user tries to execute a prohibited action, an error message is displayed on-screen.

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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\ASPxDiagramDemos
\Users\Public\Documents\DevExpress Demos XX.X\Components\ASP.NET\VB\ASPxDiagramDemos

Your Next Great ASP.NET App Starts Here

Get started today and download your 30-day trial of ASP.NET Controls and Libraries (includes 30 days of free technical support).
All demos ship with full source code and are included in the DevExpress ASP.NET distribution. Refer to the Demos and Sample Applications topic to learn more.

DevExpress ASP.NET Controls and Libraries ship as part of DevExpress Universal, DXperience and ASP.NET Subscriptions and are backed by a 60 day unconditional money-back guarantee.
To learn more and obtain pricing information, visit the Compare Features and Pricing webpage. For immediate assistance, contact us by Email at info@devexpress.com or by phone at +1 (818) 844-3383 between 7:30am and 4:30pm Pacific Time.