ConstraintCollection.Item Property (String)

 

Gets the Constraint from the collection with the specified name.

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

public Constraint this[
	string name
] { get; }

Parameters

name
Type: System.String

The ConstraintName of the constraint to return.

Property Value

Type: System.Data.Constraint

The Constraint with the specified name; otherwise a null value if the Constraint does not exist.

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

The following example gets the named Constraint.

private void GetConstraint(DataTable table)
{
    if(table.Constraints.Contains("CustomersOrdersConstraint"))
    {
        Constraint constraint = 
            table.Constraints["CustomersOrdersConstraint"];
    }
}

.NET Framework
Available since 1.1
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