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The following example updates and and deletes the same product concurrently: Inherited from Db Update Exception, Db Update Concurrency Exception has an Entries property.
Entries returns a sequence of Entity Entry instances, representing the conflicting entities’ tracking information.
Applies to: The information in this topic applies to document-level projects and VSTO Add-in projects for the following applications: Excel; Info Path 2013 and Info Path 2010; Outlook; Power Point; Project; Visio; Word.
In this procedure, you will add the custom group to a built-in tab, and then specify the position of the custom group on the tab.
When you open a new mail form in Outlook, a custom group named Customer Purchases appears on the Messages tab of the Ribbon.
The Visual Studio edition that you have and the settings that you use determine these elements.
For more information, see Personalize the Visual Studio IDE.
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The basic idea of resolving concurrency conflicts, is to handle Db Update Concurrency Exception and retry Save Changes: In the above Write overload, if Save Changes throws Db Update Concurrency Exception, the handle Exception function is called.