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.NET Forum / Windows Forms / Design Time / December 2007ReadOnly mode for Forms Designer
Hi, I've embedded the .NET forms designer in my application and need it to operate in ReadOnly mode in certain circumstances. I want the user to be able to select different controls on the form and view their properties but not make any changes. How can this be accomplished? Thanks, Bill Hi Bill, Based on my understanding, you implement a custom form designer in your application and would like to make the controls you place on the form designer readonly in the custom properties window in your application. If I'm off base, please feel free to let me know. I am performing research on this issue and would get the result back to you ASAP. I appreciate your patience! Sincerely, Linda Liu Microsoft Online Community Support ================================================== Get notification to my posts through email? Please refer to http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif ications. Note: The MSDN Managed Newsgroup support offering is for non-urgent issues where an initial response from the community or a Microsoft Support Engineer within 1 business day is acceptable. Please note that each follow up response may take approximately 2 business days as the support professional working with you may need further investigation to reach the most efficient resolution. The offering is not appropriate for situations that require urgent, real-time or phone-based interactions or complex project analysis and dump analysis issues. Issues of this nature are best handled working with a dedicated Microsoft Support Engineer by contacting Microsoft Customer Support Services (CSS) at http://msdn.microsoft.com/subscriptions/support/default.aspx. ================================================== This posting is provided "AS IS" with no warranties, and confers no rights. Hi Linda, Yes, that is essentially it. I want the user to be able to select controls on the form in the form designer and view, but not change, the control's properties. I also do not want them to be able to move or delete controls from the form. Thanks, Bill Hi Bill, The solution to the problem is a little complex. To prevent the user from moving or deleting controls on the form designer, you can set the "Locked" property of the controls to true. To make the properties of the controls/components are read-only, since PropertyGrid is not part of the designer, you can use an object acting as a property bag for the selected component and assign it to the SelectedObject property of the PropertyGrid at the event when a component is selected in the designer. The property bag exposes all the properties of the selected component but make them all read-only. If you're using .NET 1.x, you create a class and implement the ICustomTypeDescriptor interface in this class so as to add all the PropertyDescriptor objects of the selected component to the custom class and add ReadOnlyAttribute to each property. If you're using .NET 2.0, you create a class and a separate class that implements the ICustomTypeDescriptor interface and then register this class as the provider of descriptions for the above custom type. For more information on how to implement custom type descriptor, please refer to the following blog article: http://blogs.msdn.com/msdnts/archive/2007/01/19/how-to-bind-a-datagridview-c olumn-to-a-second-level-property-of-a-data-source.aspx Hope this helps. If you have any question, please feel free to let me know. Sincerely, Linda Liu Microsoft Online Community Support Thanks very much, Linda. I'll give it a try.  SignatureBill Hi Bill, How about the problem now? If you have any question, please feel free to let me know. Thank you for using our MSDN Managed Newsgroup Support Service! Sincerely, Linda Liu Microsoft Online Community Support
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