ForeignKeyConstraint.Columns Property
Definition
Important
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Gets the child columns of this constraint.
public:
virtual property cli::array <System::Data::DataColumn ^> ^ Columns { cli::array <System::Data::DataColumn ^> ^ get(); };
public virtual System.Data.DataColumn[] Columns { get; }
[System.Data.DataSysDescription("ForeignKeyConstraintChildColumnsDescr")]
public virtual System.Data.DataColumn[] Columns { get; }
member this.Columns : System.Data.DataColumn[]
[<System.Data.DataSysDescription("ForeignKeyConstraintChildColumnsDescr")>]
member this.Columns : System.Data.DataColumn[]
Public Overridable ReadOnly Property Columns As DataColumn()
Property Value
An array of DataColumn objects that are the child columns of the constraint.
- Attributes
Examples
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
Applies to
See also
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