IXmlPropertySet.SetAttribute Method

Sets the attribute of the specified element.

[Visual Basic .NET]
Public Sub SetAttribute ( _
    ByVal Name As String, _
    ByVal Attribute As String, _
    ByVal Value As Object, _
    ByVal action As esriXmlSetPropertyAction _
)

[C#]
public void SetAttribute (
    string Name,
    string Attribute,
    object Value,
    esriXmlSetPropertyAction action
);

[C++]
HRESULT SetAttribute(
  BSTR Name,
  BSTR Attribute,
  VARIANT Value,
  esriXmlSetPropertyAction action
);

[C++]

Parameters
Name [in]
  Name is a parameter of type BSTR
Attribute [in]
  Attribute is a parameter of type BSTR
Value [in]
  Value is a parameter of type VARIANT
action [in]

  action is a parameter of type esriXmlSetPropertyAction

Product Availability

Remarks

The SetAttribute method adds or replaces XML attributes and sets the attribute value. 

If the Name expression defines repeating elements, the SetAttribute method will change all elements that satisfy the XPath pattern. For instance "idinfo/keywords/theme/themekey" locates all theme keywords. For more information on XPath, see the IXmlPropertySet interface.

The Action parameter is a esriXmlSetPropertyAction constant. These constants allow several options when encountering different scenarios in metadata. Possible scenarios range from metadata elements which already exist and have attribute value to non-existent metadata elements. How to handle the different cases is determined by the Action parameter.  The esriXmlSetPropertyAction constants work differently depending on the presence/absence of the XML element as well as the presence/absence of the attribute. It is important to be familiar with the different actions. For instance, if the Name expression fails to located the specified XML element, all esriXmlSetPropertyAction constants, except "Replace If Exist", will Add the XML element, attribute, and attribute value. The table below better explains the action constants:

See Also

IXmlPropertySet Interface | esriXmlSetPropertyAction Constants