UniqueConstraint Constructor (String^, array<String^>^, Boolean)
Initializes a new instance of the UniqueConstraint class with the specified name, an array of DataColumn objects to constrain, and a value specifying whether the constraint is a primary key.
Assembly: System.Data (in System.Data.dll)
public: [BrowsableAttribute(false)] UniqueConstraint( String^ name, array<String^>^ columnNames, bool isPrimaryKey )
Parameters
- name
-
Type:
System::String^
The name of the constraint.
- columnNames
-
Type:
array<System::String^>^
An array of DataColumn objects to constrain.
- isPrimaryKey
-
Type:
System::Boolean
true to indicate that the constraint is a primary key; otherwise, false.
This constructor is provided for design time support in the Visual Studio .NET environment. UniqueConstraint objects created by using this constructor must then be added to the collection via AddRange. Columns with the specified names must exist at the time the method is called, or if BeginInit has been called prior to calling this constructor, the columns with the specified names must exist at the time that EndInit is called.
Available since 1.1