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ConstraintCollection.Item Property (Int32)

Gets the Constraint from the collection at the specified index.

Namespace: System.Data
Assembly: System.Data (in

public Constraint this [
	int index
] { get; }
/** @property */
public Constraint get_Item (int index)

Not applicable.



The index of the constraint to return.

Property Value

The Constraint at the specified index.

Exception typeCondition


The index value is greater than the number of items in the collection.

Use the Contains method to test for the existence of a specific constraint.

The following example gets each Constraint from the ConstraintCollection.

private void GetConstraint(DataTable table)
    for(int i = 0; i < table.Constraints.Count; i++)

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0