<dateFormat> (Date Display Mask)

The element specifies the display format which shall be used to format any date entered into the parent structured document tag in full DateTime format
example: : Through a user interface (a date picker), or through custom XML data associated with this structured document tag via the <dataBinding> element (§
2.5.2.6). ] before displaying it in the structured document tag's run content.

If this element is omitted, then the date shall be formatted using the standard date display mask for the language ID specified on the <lid> element (§2.5.2.19) if present, or the language ID of the run contents otherwise.

The date display mask specified in the @val attribute shall be interpreted using the semantics specified in §2.16.4.1 of this Office Open XML Standard.

example: 
<w:sdtPr>
  <w:date w:fullDate="01-01-2006T06:30:00Z">
    <w:dateFormat w:val="MM-YYYY"/>
  </w:date>
</w:sdtPr>

The full XML Schema DateTime format for the current structured document tag is specified via the @fullDate attribute value as 01-01-2006T06:30:00Z, and the date display mask is MM-YYYY, therefore the resulting date displayed in the document shall be 01-2006 (the month and long year from the full date value, respectively). ]

Parent Elements

<date> (§2.5.2.7)

Attributes

Description

<val> (String Value)

Specifies that its contents will contain a string.

The contents of this string are interpreted based on the context of the parent XML element.

<w:pPr>
  <w:pStyle w:val="heading1" /> 
</w:pPr>

The value of the @val attribute is the ID of the associated paragraph style's styleId.

However, consider the following fragment:

<w:sdtPr>
  <w:alias w:val="SDT Title Example" />
  ...
</w:sdtPr>

In this case, the decimal number in the @val attribute is the caption of the parent structured document tag. In each case, the value is interpreted in the context of the parent element. ]

The possible values for this attribute are defined by the ST_String simple type (§2.18.89).

The following XML Schema fragment defines the contents of this element:

<complexType name="CT_String">
	<attribute name="val" type="ST_String" use="required"/>
</complexType>