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ConstraintCollection.Remove Method (Constraint)

Removes the specified Constraint from the collection.

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

public void Remove(
	Constraint constraint
)

Parameters

constraint
Type: System.Data.Constraint

The Constraint to remove.

ExceptionCondition
ArgumentNullException

The constraint argument is null.

ArgumentException

The constraint does not belong to the collection.

Before using the Remove method, you can use the Contains method to determine whether the collection contains the target Constraint, and the CanRemove method to determine whether a Constraint can be removed.

The CollectionChanged event occurs if the constraint is successfully removed.

private void RemoveConstraint(DataTable table, 
    Constraint constraint)
{
    if(table.Constraints.Contains(constraint.ConstraintName))
        if(table.Constraints.CanRemove(constraint))
            table.Constraints.Remove(constraint);
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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