How to: Display or Hide Relationship Names on the Dataset Designer
.NET Framework 2.0
Relationships between DataTables appear as lines on the Dataset Designer with a key and infinity glyph depicting the one-to-many aspect of the relationship. By default the name of the relationship does not appear on the design surface.
To toggle the display of relation names in the Dataset Designer
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Open your dataset in the Dataset Designer. For more information, see How to: Open a Dataset in the Dataset Designer.
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From the Data menu, select or clear the Show Relation Labels command to toggle displaying the relation name on or off.