DisplayKey Element (CSDL)
The DisplayKey element contains a list of the following elements that together constitute a strong identifier. The DisplayKey is found only as a child of the Entity element.
The DisplayKey element applies to the following objects:
Columns
Role ends
Applicable Attributes
The following table lists the attributes found on the DisplayKey element.
Attribute Name |
Is Required |
Value |
|---|---|---|
IsDisplayKey |
No |
True or false. |
Remarks
This element is for reports. The element to which you apply this attribute need not be the actual table key, only an element that you will present as the key. However, the column must contain unique values.
Example
The following sample shows a column, EnglishProductCategoryName, that has been specified as the display key for the table, ProductCategory.
<EntityType Name="ProductCategory">
<Key>
<PropertyRef Name="RowNumber" />
</Key>
...
<bi:EntityType>
<bi:DisplayKey>
<bi:MemberRef Name="EnglishProductCategoryName" />
</bi:DisplayKey>
</bi:EntityType>
</EntityType>