Chapter 3 Building an XML model

Creating an identity constraint

You create an identity constraint from an element property sheet.

To create an identity constraint from an element property sheet:

1. Click the Constraints tab of an element property sheet.
2. Click the Add Unique, Add Key or Add KeyRef Constraint tool in the Constraints tab.
   
   An identity constraint is displayed in the list with predefined name and code (a unique constraint in the example).
   
3. Modify the name and the code of the identity constraint.
4. Click OK.

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