ESRI.ArcGIS.ADF.IMS
ValueMapLabelRenderer Constructor()
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ESRI.ArcGIS.ADF.IMS.Display.Renderer Namespace > ValueMapLabelRenderer Class > ValueMapLabelRenderer Constructor : ValueMapLabelRenderer Constructor()




Constructs a ValueMapLabelRenderer.

Syntax

Visual Basic (Declaration) 
Public Function New()
Visual Basic (Usage)Copy Code
Dim instance As New ValueMapLabelRenderer()
C# 
public ValueMapLabelRenderer()

Example

The following example creates a new ValueMapLabelRenderer for cities, adds three ranges for small, medium and large cities, sets different font size and color for each range, and assigns the new renderer to the cities map layer.
Visual BasicCopy Code
' Create a new ValueMapLabelRenderer and set value and label fields
Dim valueMapLblRend As New ValueMapLabelRenderer()
valueMapLblRend.ValueField = "POPULATION"
valueMapLblRend.LabelField = "NAME"
 
Dim textFont As FontInfo
Dim valueRange As LabelValueRange
 
' Create three value ranges, for three different city population sizes
valueRange = New LabelValueRange()
valueRange.MinValue = "1"
valueRange.MaxValue = "100000"
textFont = New FontInfo("Arial", 8, Drawing.Color.Blue, FontStyle.Regular)
valueRange.Symbol = New TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty)
valueRange.SymbolLabel = "1 to 100,000"
valueMapLblRend.Values.Add(valueRange)
 
valueRange = New LabelValueRange()
valueRange.MinValue = "100000"
valueRange.MaxValue = "1000000"
textFont = New FontInfo("Arial", 12, Drawing.Color.Green, FontStyle.Regular)
valueRange.Symbol = New TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty)
valueRange.SymbolLabel = "100,000 to 1,000,000"
valueMapLblRend.Values.Add(valueRange)
 
valueRange = New LabelValueRange()
valueRange.MinValue = "1000000"
valueRange.MaxValue = "50000000"
textFont = New FontInfo("Arial", 18, Drawing.Color.Red, FontStyle.Regular)
valueRange.Symbol = New TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty)
valueRange.SymbolLabel = "Over 1,000,000"
valueMapLblRend.Values.Add(valueRange)
 
' Assign the ValueMapLabelRenderer to an existing point layer
Dim layer As FeatureLayer = mapView.Layers.FindByName("Cities")
layer.Renderer = valueMapLblRend
C#Copy Code
// Create a new ValueMapLabelRenderer and set value and label fields
ValueMapLabelRenderer valueMapLblRend = new ValueMapLabelRenderer();
valueMapLblRend.ValueField = "POPULATION";
valueMapLblRend.LabelField = "NAME";
 
FontInfo textFont;
LabelValueRange valueRange;
 
// Create three value ranges, for three different city population sizes
valueRange = new LabelValueRange();
valueRange.MinValue = "1";
valueRange.MaxValue = "100000";
textFont = new FontInfo("Arial", 8, Drawing.Color.Blue, FontStyle.Regular);
valueRange.Symbol = new TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty);
valueRange.SymbolLabel = "1 to 100,000";
valueMapLblRend.Values.Add(valueRange);
 
valueRange = new LabelValueRange();
valueRange.MinValue = "100000";
valueRange.MaxValue = "1000000";
textFont = new FontInfo("Arial", 12, Drawing.Color.Green, FontStyle.Regular);
valueRange.Symbol = new TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty);
valueRange.SymbolLabel = "100,000 to 1,000,000";
valueMapLblRend.Values.Add(valueRange);
 
valueRange = new LabelValueRange();
valueRange.MinValue = "1000000";
valueRange.MaxValue = "50000000";
textFont = new FontInfo("Arial", 18, Drawing.Color.Red, FontStyle.Regular);
valueRange.Symbol = new TextSymbol(textFont, TextCasing.None, Drawing.Color.Empty);
valueRange.SymbolLabel = "Over 1,000,000";
valueMapLblRend.Values.Add(valueRange);
 
// Assign the ValueMapLabelRenderer to an existing point layer
FeatureLayer layer = mapView.Layers.FindByName("Cities");
layer.Renderer = valueMapLblRend;

Remarks

If you use this form of the constructor, remember to set the ValueField and LabelField properties. If not set, a runtime error will be thrown.

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

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