ILabelClassDescription.LabelExpression Property

The Label Expression.

[Visual Basic .NET]
Public Property LabelExpression As String

[C#]
public string LabelExpression {get; set;}

[C++]
HRESULT get_LabelExpression(
  System.String* LabelExpression
);

[C++]
HRESULT put_LabelExpression(
  BSTR LabelExpression
);

[C++]
Parameters
LabelExpression [out, retval]

  LabelExpression is a parameter of type BSTR*
LabelExpression [in]

  LabelExpression is a parameter of type BSTR

Product Availability

Remarks

Please note that LabelExpression either returns a field name or a simple expression set for a layer. A simple expression could be a concatenation of attribute values from two fields, for example first and last name of a parcel owner. MapServer drops any advanced expression set on the layer in the source map document and returns an empty string.

See Also