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GeneralRe: Thread Leak Pin
michaelbarb28-Feb-13 4:11
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GeneralRe: Thread Leak Pin
Dave Kreskowiak28-Feb-13 4:17
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GeneralRe: Thread Leak Pin
Pete O'Hanlon28-Feb-13 4:30
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AnswerRe: Thread Leak Pin
michaelbarb18-Jun-13 4:57
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QuestionElements of a toolstrip witin an usercontrol get deleted when copying/pasting the usercontrol. Pin
priyamtheone18-Feb-13 4:41
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QuestionData Binding to an Object that may be Read Only Pin
Simon Bridge4-Feb-13 11:46
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AnswerRe: Data Binding to an Object that may be Read Only Pin
Eddy Vluggen9-Feb-13 9:30
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GeneralRe: Data Binding to an Object that may be Read Only Pin
Simon Bridge10-Feb-13 10:45
MemberSimon Bridge10-Feb-13 10:45 
It seems to be a big gap in the visual studio data-binding extensions - there is no support for read only entities or even read only properties.

Properties that are compiled as read-only do not get treated any differently.

I even implemented the ICustomTypeDescriptor interface, but the binding source, while it reads off a set of properties for each object, it only checks the "IsReadOnly" property from the first record, and it doesn't even appear to affect how it binds the data source to the controls.

I am coping with the issue by:

1) each entity implements IEditableObject.
2) in the IEditableObject.BeginEdit() method, the entity attempts to acquire a lock. If it cannot acquire the lock, the entity is ReadOnly. I removed any exceptions thrown at this point: the lock fails silently.
3) I have handled the CurrentItemChanged event from the BindingSource. In this handler, I check if the entity is read-only, and update the enabled state of the associated controls.

This seems to be working for now, but I am faced with another issue:

the BindingSource component, doesn't always call IEditableObject.EndEdit() or IEditableObject.CancelEdit() for every item it has called IEditableObject.BeginEdit() on.... this seems like a fairly dramatic design flaw in this component.

Am I not disposing of it correctly?
GeneralRe: Data Binding to an Object that may be Read Only Pin
Eddy Vluggen12-Feb-13 7:53
professionalEddy Vluggen12-Feb-13 7:53 
GeneralRe: Data Binding to an Object that may be Read Only Pin
Simon Bridge12-Feb-13 10:55
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GeneralRe: Data Binding to an Object that may be Read Only Pin
Eddy Vluggen12-Feb-13 12:27
professionalEddy Vluggen12-Feb-13 12:27 
QuestionImplement jQuery Tag-it functionality in C# Win Form Pin
Member 29389611-Feb-13 7:47
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QuestionRe-write a MS Access application to Visual Studio Pin
Jaap Britz19-Jan-13 23:23
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AnswerRe: Re-write a MS Access application to Visual Studio Pin
Eddy Vluggen20-Jan-13 2:32
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GeneralRe: Re-write a MS Access application to Visual Studio Pin
Maciej Los19-Mar-13 7:01
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AnswerRe: Re-write a MS Access application to Visual Studio Pin
Maciej Los19-Mar-13 7:05
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QuestionHow to Deploy my application along with database Pin
Nag4dotnet31-Dec-12 0:27
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AnswerRe: How to Deploy my application along with database Pin
savbace10-Jan-13 22:54
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QuestionWindows Form Designer code and importing old projects Pin
Aaron Hartley28-Dec-12 10:42
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AnswerRe: Windows Form Designer code and importing old projects Pin
Mike Meinz21-Jan-13 8:44
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Questionparent/child bindingsource save on new row does not work Pin
PrissySC8-Dec-12 11:07
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AnswerRe: parent/child bindingsource save on new row does not work Pin
PrissySC10-Dec-12 3:36
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QuestionDetect if ANY control is clicked inside a form, regardless of the container Pin
Dennis Bork3-Dec-12 3:39
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Answercrosspost from C# forum Pin
Eddy Vluggen3-Dec-12 4:47
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GeneralRe: crosspost from C# forum Pin
Pete O'Hanlon3-Dec-12 4:54
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