dataType Property1

發行項
10/27/2016

Specifies the data type for this element or attribute. When a DTD is used, the dataType property is only applicable to attributes, in which case dataType returns the attribute-type according to the DTD. The value returned will use XDR naming conventions, however. In other words, the type is returned in lower-case. This is different from the DTD convention. When using XDR, or when an element has a dt:dt attribute, elements may also have datatypes.

MSXML 6.0 does not support XDR schemas. However, elements can have an XDR data type by having a dt:dt attribute. For more information, see Removal of XDR Schema Support.

This method does not support elements or attributes that have data types defined by XSD schemas. If the document uses an XSD schema, this method returns null.

Script Syntax

objValue = oXMLDOMNode.dataType;  
objXMLDOMNode.dataType = objValue;

Example

var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.3.0");
xmlDoc.async = false;
xmlDoc.loadXML("<root/>");
if (xmlDoc.parseError.errorCode != 0) {
   var myErr = xmlDoc.parseError;
   WScript.Echo("You have error " + myErr.reason);
} else {
   var root = xmlDoc.documentElement;
   root.dataType = "int";
   root.nodeTypedValue = 5;
   WScript.Echo(xmlDoc.xml);
}

Visual Basic Syntax

objValue = oXMLDOMNode.dataType  
objXMLDOMNode.dataType = objValue

C/C++ Syntax

HRESULT get_dataType(  
    VARIANT *dataTypeName);  
HRESULT put_dataType(  
    BSTR dataTypeName);

Parameters

dataTypeName[out, retval][in]
The VARIANT can be a BSTR that contains the data type name, or VT_NULL if no data type is defined.

C/C++ Return Values

S_OK
The value returned if successful.

S_FALSE (for get_dataTypeonly)
The value returned if the node is not typed.

E_INVALIDARG (for get_dataTypeonly)
The value returned if the dataTypeName parameter is Null.

E_FAIL (for put_dataTypeonly)
The value returned if an error occurs.

Remarks

The property is read/write. The VARIANT can be a BSTR that contains the data type name, or VT_NULL if no data type is defined. This property applies to DTDs only, not to XML-Data Reduced (XDR) schemas or XML Schemas (XSD). This value depends on the value of the nodeType property of the IXMLDOMNode.

This member is an extension of the World Wide Web Consortium (W3C) Document Object Model (DOM).

NODE_ATTRIBUTE	Contains the string representation of the data type specifier included in the schema, or Null if no data type is specified.
NODE_CDATA_SECTION NODE_COMMENT NODE_DOCUMENT NODE_DOCUMENT_FRAGMENT NODE_DOCUMENT_TYPE NODE_ENTITY NODE_NOTATION NODE_PROCESSING_INSTRUCTION NODE_TEXT	Contains the constant string value "string". These node types do not have data types, so the `dataType` property cannot be set for these node types. Attempts to set this property are ignored.
NODE_ELEMENT	Contains the string representation of the data type specifier included on the instance of the element or in the schema, or Null if no data type is specified.
NODE_ENTITY_REFERENCE	Contains the string representation of the data type specifier for the referenced entity. This is limited to entities with a single data type on the root level element of the subtree corresponding to the entity. Contains Null if no data type is specified. It is not possible to set the data type of an entity reference. The data type must be set directly on the referenced element. Attempts to set the value of the `dataType` property are ignored.

Versioning

Implemented in:

MSXML 3.0, MSXML 6.0

Applies to

共用方式為