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CustomXmlPlaceholder class

Custom XML Element Placeholder Text. When the object is serialized out as xml, its qualified name is w:placeholder.

Namespace:  DocumentFormat.OpenXml.Wordprocessing
Assembly:  DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)

public class CustomXmlPlaceholder : StringType

[ISO/IEC 29500-1 1st Edition]

placeholder (Custom XML Element Placeholder Text)

This element specifies the placeholder text which shall be displayed in place of this custom XML element when the contents of this custom XML markup are empty (i.e. there are no runs of text within the current custom XML element). If this custom XML element does contain run content, then this text shall not be displayed.

The val attribute stores the string of text which shall be displayed as the placeholder text. This string can be displayed in any font face/size desired by the hosting application.

[Example: Consider a custom XML element with the following properties specified:

<w:customXmlPr>
  <w:placeholder w:val="[Fill in your name]"/>
  <w:attr w:name="status" w:val="draft"/>
</w:customXmlPr>

The placeholder element specifies that this custom XML element must display the text contents [Fill in your name] whenever there is no run content within the parent custom XML element. For example, if the custom XML element was specified as follows:

<w:customXml>
  <w:customXmlPr>
    <w:placeholder w:val="[Fill in your name]"/>
  </w:customXmlPr>
  <w:p/>
</w:customXml>

This custom XML element has no run content and the placeholder text would be displayed. However, if there is run content, as follows:

<w:customXml>
  <w:customXmlPr>
    <w:placeholder w:val="[Fill in your name]"/>
  </w:customXmlPr>
  <w:p>
    <w:r>
      <w:t>Name</w:t>
    </w:r>
  </w:p>
</w:customXml>

This custom XML element now contains run content, and the placeholder text must not be displayed. end example]

Parent Elements

customXmlPr (§17.5.1.7)

Attributes

Description

val (String Value)

Specifies that its contents contain a string.

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

[Example: Consider the following WordprocessingML fragment:

<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. end example]

The possible values for this attribute are defined by the ST_String simple type (§22.9.2.13).

[Note: The W3C XML Schema definition of this element’s content model (CT_String) is located in §A.1. end note]

© ISO/IEC29500: 2008.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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