ConstraintCollection.RemoveAt Method

Removes the Constraint object at the specified index from the collection.

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

public void RemoveAt (
	int index
)
public void RemoveAt (
	int index
)
public function RemoveAt (
	index : int
)

Parameters

index

The index of the Constraint to remove.

Exception typeCondition

IndexOutOfRangeException

The collection does not have a constraint at this index.

The IndexOf method returns the index of a specific Constraint.

Before using the RemoveAt 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.

The following example uses the IndexOf method together with the RemoveAt method to remove a constraint from the ConstraintCollection.

private void RemoveConstraint(ConstraintCollection constraints, 
    Constraint constraint)
{
    try
    {
        if(constraints.Contains(constraint.ConstraintName)) 
        {
            if(constraints.CanRemove(constraint)) 
            {
                constraints.RemoveAt(constraints.IndexOf(
                    constraint.ConstraintName));
            
        
    
    catch(Exception e) 
    {
        // Process exception and return.
        Console.WriteLine("Exception of type {0 occurred.", 
            e.GetType());
    


Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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