ForeignKeyConstraint::Columns Property
.NET Framework (current version)
Gets the child columns of this constraint.
Assembly: System.Data (in System.Data.dll)
Property Value
Type: array<System.Data::DataColumn^>^An array of DataColumn objects that are the child columns of the constraint.
The following example returns an array of DataColumn objects through the Columns property.
Private Sub GetColumns() Dim dataColumns() As DataColumn Dim relation As DataRelation Dim i As Integer ' Get the DataRelation from a DataSet. For Each relation In DataSet1.Relations If relation.GetType.ToString = _ "System.Data.ForeignKeyConstraint" Then dataColumns = relation.ParentColumns For i = 0 To dataColumns.GetUpperBound(0) Console.WriteLine(dataColumns(i).ColumnName) Next i End If Next End Sub
.NET Framework
Available since 1.1
Available since 1.1
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