本文整理匯總了VB.NET中System.Data.UniqueConstraint.Columns屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET UniqueConstraint.Columns屬性的具體用法？VB.NET UniqueConstraint.Columns怎麽用？VB.NET UniqueConstraint.Columns使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Data.UniqueConstraint的用法示例。
在下文中一共展示了UniqueConstraint.Columns屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: GetColsFromConstraint
Private Sub GetColsFromConstraint()
Dim dataColumns() As DataColumn
' Get a named relation from a DataSet.
Dim dataRelation As DataRelation
dataRelation = DataSet1.Relations("CustomerOrders")
' Get the ParentKeyConstraint
Dim uniqueConstraint As UniqueConstraint
uniqueConstraint= dataRelation.ParentKeyConstraint
' Get the DataColumn objects being constrained.
dataColumns = uniqueConstraint.Columns
' Print the column name of each column.
Dim i As Integer
For i = 0 to dataColumns.GetUpperBound(0)
Console.Write(dataColumns(i).ColumnName)
Next i
End Sub