The Application Development Experiences of an Enterprise Developer

Tag: profile

Profile Provider Exception

Posted by bsstahl on 2006-10-07 and Filed Under: development 

While working on a custom Profile provider, I needed to set the values in a SettingPropertyValuesCollection object to pass to the SetPropertyValues method of the provider. Using the code below, I was always getting a NullReferenceException when the provider attempted to read the values out of the collection.

Dim objProperties As New System.Configuration.SettingsPropertyValueCollection
Dim objProperty As New System.Configuration.SettingsProperty"BirthDate")
objProperty.PropertyValue = #2/14/2004#
Dim objPropertyValue As New System.Configuration.SettingsPropertyValue(objProperty)
objProperties.Add(objPropertyValue)

The problem occurs because the collection doesn't know what type to assign the value to coming out of the collection. By modifying the code as follows, I specify the type of the property, and the process executes as expected.

Dim objProperties As New System.Configuration.SettingsPropertyValueCollection
Dim objProperty As New System.Configuration.SettingsProperty("BirthDate")
objProperty.PropertyValue = #2/14/2004#
objProperty.PropertyType = GetType(System.DateTime)
Dim objPropertyValue As New System.Configuration.SettingsPropertyValue(objProperty)
objProperties.Add(objPropertyValue)

Tags: provider profile framework asp.net 

About the Author

Barry S. Stahl Barry S. Stahl (him/his) - Barry is a .NET Software Engineer who has been creating business solutions for enterprise customers for more than 30 years. Barry is also an Election Integrity Activist, baseball and hockey fan, husband of one genius and father of another, and a 30+ year resident of Phoenix Arizona USA. When Barry is not traveling around the world to speak at Conferences, Code Camps and User Groups or to participate in GiveCamp events, he spends his days as a Solution Architect for Carvana in Tempe AZ and his nights thinking about the next AZGiveCamp event where software creators come together to build websites and apps for some great non-profit organizations.

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