ConstraintCollection.RemoveAt(Int32) Method
Definition
Important
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Removes the Constraint object at the specified index from the collection.
public:
void RemoveAt(int index);public void RemoveAt (int index);member this.RemoveAt : int -> unitPublic Sub RemoveAt (index As Integer)Parameters
- index
- Int32
The index of the Constraint to remove.
Exceptions
The collection does not have a constraint at this index.
Examples
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());
}
}
Private Sub RemoveConstraint _
(constraints As ConstraintCollection, constraint As Constraint)
Try
If constraints.Contains(constraint.ConstraintName) Then
If constraints.CanRemove(constraint) Then
constraints.RemoveAt _
(constraints.IndexOf(constraint.ConstraintName))
End If
End If
Catch e As Exception
' Process exception and return.
Console.WriteLine("Exception of type {0} occurred.", _
e.GetType().ToString())
End Try
End Sub
Remarks
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.
