Hi John,
To get the current version of a ClickOnce application, we use the
My.Application.Deployment.CurrentVersion property (VB.NET) or
System.Deployment.Application.ApplicationDeployment.CurrentDeployment.Curren
tVersion property (C#).
But we could use this property only after the application is deployed via
ClickOnce. If we run the application when it is not installed, we will get
an exception of 'Application identity is not set'. If we run it with VS
debugger, i.e. press F5 to run it, we get an exception stating that
'Application is not installed'.
I suggest that you add a condition before you use the
My.Application.Deployment.CurrentVersion property, that is 'If
(My.Application.IsNetworkDeployed) Then'.
Hope this helps.
If you have any question, please feel free to let me know.
Sincerely,
Linda Liu
Microsoft Online Community Support
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