Removes a Value from the collection.
Syntax
| Visual Basic (Declaration) | |
|---|
Public Sub Remove( _
ByVal val As Value _
) |
Parameters
- val
- A reference to the Value item to remove from the renderer's value collection.
Example
The following example removes the smallest cities from a renderer via the ValueMapRenderer's collection. It first drills down into the layer (which has a GroupRenderer) to find the ValueCollection. Then it iterates through the values, finding the value range based on the minimum value. If found, the value is removed from the renderer.
| Visual Basic |  Copy Code |
|---|
' Access the values collection of a value map renderer
Dim layer As FeatureLayer = mapView.Layers.FindByName("Cities")
Dim grpRend As GroupRenderer = layer.Renderer
Dim valueMapRend As ValueMapRenderer = grpRend.Renderers(0)
Dim valueColl As ValueCollection = valueMapRend.Values
Dim valueToRemove As Value = Nothing
'Find the value range to remove
For Each value As ValueRange In valueColl
If value.MinValue = "-99" Then
valueToRemove = value
Exit For
End If
Next
' If found, remove the value range
If Not IsNothing(valueToRemove) Then
valueColl.Remove(valueToRemove)
End If |
| C# | Copy Code |
|---|
// Access the values collection of a value map renderer
FeatureLayer layer = mapView.Layers.FindByName("Cities");
GroupRenderer grpRend = layer.Renderer;
ValueMapRenderer valueMapRend = grpRend.Renderers(0);
ValueCollection valueColl = valueMapRend.Values;
Value valueToRemove = null;
// Find the value range to remove
foreach (ValueRange value in valueColl)
{
if (value.MinValue == "-99") {
valueToRemove = value;
break;
}
}
// If found, remove the value range
if (valueToRemove != null)
valueColl.Remove(valueToRemove); |
Remarks
Requirements
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family
See Also
