While developing custom web part we may need to redirect to
some page with some Query String. In SharePoint
there are some reserved query strings
When creating the SPContext object SharePoint evaluates the
following query string parameters if provided(To ensure that the creation of
the SPContext object does not fail your application should ensure that your
query string parameters are different from those listed below):
- FeatureId
- ListTemplate
- List
- ID
- VersionNo
- ContentTypeId
- RootFolder
- View
- FolderCTID
- Mode
- Type
- PageVersion
- IsDlg
- Title
- _V3List_
Dont use above query string parameter in your custom development or you will get some error like -Object reference not set to an instance of an object by using query string
