ColumnIndex Class

Definition

Namespace:

DocumentFormat.OpenXml.Wordprocessing

Assembly:

DocumentFormat.OpenXml.dll

Package:

DocumentFormat.OpenXml v3.0.1

Index of Column Containing Unique Values for Record.

This class is available in Office 2007 and above.

When the object is serialized out as xml, it's qualified name is w:column.

public class ColumnIndex : DocumentFormat.OpenXml.Wordprocessing.UnsignedDecimalNumberType

type ColumnIndex = class
    inherit UnsignedDecimalNumberType

Public Class ColumnIndex
Inherits UnsignedDecimalNumberType

Inheritance

Object

OpenXmlElement

OpenXmlLeafElement

UnsignedDecimalNumberType

ColumnIndex

Remarks

[ISO/IEC 29500-1 1st Edition]

column (Index of Column Being Mapped)

This element specifies the zero-based index of the column within a given external data source which shall be mapped to the local name of a specific MERGEFIELD field (§17.16.5.35) specified by the parent field mapping data. The val attribute specifies this index value, which is used to look up the appropriate column in the data source.

If this element is omitted, or its value exceeds the number of columns in the associated data source, then the index of the referenced column shall be assumed to be 0.

[Example: Consider a source document that is connected to an external data source with three columns. Within this external data source, these are three columns are ordered and titled as follows: first, middle, and last, respectively. The following WordprocessingML specifies that when this document was connected to the data source, these columns were ordered in this manner:

<w:fieldMapData>  
  …  <w:name w:val="first" />  
  <w:column w:val="0" />  
</w:fieldMapData>  
<w:fieldMapData>  
  …  <w:name w:val="middle" />  
  <w:column w:val="1" />  
</w:fieldMapData>  
<w:fieldMapData>  
  …  <w:name w:val="last" />  
  <w:column w:val="2" />  
</w:fieldMapData>  

The WordprocessingML above demonstrates that the column titled first must be associated with the first column in the external database by specifying a column element with its val attribute equal to addition, the column titled middle must be associated with the second column in the external database by specifying a column element with its val attribute equal to 1. Finally, the column titled last must be associated with the third column in the external database by specifying a column element with its val attribute equal to 2. end example]

It is important to realize that the name element's values are a cache of the last time the document was connected to the database, and the indices specified must be used to connect the field mappings with the columns in the data source. end example]

Parent Elements
fieldMapData (§17.14.15)

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

[ISO/IEC 29500-1 1st Edition]

column (Index of Column Containing Unique Values for Record)

This element specifies the column within the specified external data source that contains unique data for the current record within that data source. This element shall be used in conjunction with the uniqueTag element (§17.14.35) to maintain a relationship between a specific record within an external data source and a given source or merged document. The val attribute on this element shall be interpreted as a zero-based index into the columns specified by the data source, specifying the resulting column as the column in which the uniqueTag element shall be looked up.

If this element specifies a column number which exceeds the number of columns in the specified external data source, then its value shall be ignored.

[Note: This information is necessary as part of a mail merge as records can be added or deleted from external data sources, and a means must be provided to maintain record-specific inclusion or exclusion data using the active element (§17.14.1) and the affected external data record when the WordprocessingML document is reconnected to the external data source irrespective of the ordering of the records within the external data source. end note]

[Example: Consider the following WordprocessingML fragment for the information about a single record in a source document for a mail merge:

<w:recipientData>  
  <w:active w:val="0" />  
  <w:column w:val="12" />   
  <w:uniqueTag>258865469</w:uniqueTag>   
</w:recipientData>  

The external data record associated with this information is specified via the column in the external data source corresponding to the column element with a val attribute equal to 12, which contains a row whose value in this column has a value corresponding to the uniqueTag element (§17.14.35) with a val attribute equal to 258865469. This record is not imported into the merged WordprocessingML document as the active (§17.14.1) element associated with the given external data record has a val attribute equal to 0.

In other words, when the specified external data source is connected to, the record within the thirteenth column of the external data source that has the contents 258865469, and not populate mapped fields in a merged document with data from that record. end example]

Parent Elements
recipientData (§17.14.27)

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

� ISO/IEC29500: 2008.

Constructors

ColumnIndex()

Initializes a new instance of the ColumnIndex class.

Properties

ChildElements	Gets all the child nodes of the current element. (Inherited from OpenXmlElement)
ExtendedAttributes	Gets all extended attributes (attributes not defined in the schema) of the current element. (Inherited from OpenXmlElement)
Features	Gets a IFeatureCollection for the current element. This feature collection will be read-only, but will inherit features from its parent part and package if available. (Inherited from OpenXmlElement)
FirstChild	Gets the first child of the OpenXmlElement element. Returns null (Nothing in Visual Basic) if there is no such OpenXmlElement element. (Inherited from OpenXmlElement)
HasAttributes	Gets a value indicating whether the current element has any attributes. (Inherited from OpenXmlElement)
HasChildren	Gets a value that indicates whether the current element has any child elements. (Inherited from OpenXmlLeafElement)
InnerText	Gets or sets the concatenated values of the node and all of its children. (Inherited from OpenXmlElement)
InnerXml	Gets or sets the markup that only represents child elements of the current element. (Inherited from OpenXmlLeafElement)
LastChild	Gets the last child of the OpenXmlElement element. Returns null (Nothing in Visual Basic) if there is no such OpenXmlElement element. (Inherited from OpenXmlElement)
LocalName	Gets the local name of the current element. (Inherited from OpenXmlElement)
MCAttributes	Gets or sets the markup compatibility attributes. Returns null if no markup compatibility attributes are defined for the current element. (Inherited from OpenXmlElement)
NamespaceDeclarations	Gets all the namespace declarations defined in the current element. Returns an empty enumerator if there is no namespace declaration. (Inherited from OpenXmlElement)
NamespaceUri	Gets the namespace URI of the current element. (Inherited from OpenXmlElement)
OpenXmlElementContext	Gets the OpenXmlElementContext of the current element. (Inherited from OpenXmlElement)
OuterXml	Gets the markup that represents the current element and all of its child elements. (Inherited from OpenXmlElement)
Parent	Gets the parent element of the current element. (Inherited from OpenXmlElement)
Prefix	Gets the namespace prefix of current element. (Inherited from OpenXmlElement)
Val	val Represents the following attribute in the schema: w:val (Inherited from UnsignedDecimalNumberType)
XmlQualifiedName	Gets the qualified name of the current element. (Inherited from OpenXmlElement)
XName	Gets the qualified name of the current element. (Inherited from OpenXmlElement)

Methods

AddAnnotation(Object)	Adds an object to the current OpenXmlElement element's list of annotations. (Inherited from OpenXmlElement)
AddNamespaceDeclaration(String, String)	Adds a namespace declaration to the current node. (Inherited from OpenXmlElement)
Ancestors()	Enumerates all of the current element's ancestors. (Inherited from OpenXmlElement)
Ancestors<T>()	Enumerates only the current element's ancestors that have the specified type. (Inherited from OpenXmlElement)
Annotation(Type)	Get the first annotation object of the specified type from the current OpenXmlElement element. (Inherited from OpenXmlElement)
Annotation<T>()	Get the first annotation object of the specified type from the current OpenXmlElement element. (Inherited from OpenXmlElement)
Annotations(Type)	Gets a collection of annotations with the specified type for the current OpenXmlElement element. (Inherited from OpenXmlElement)
Annotations<T>()	Gets a collection of annotations with the specified type for the current OpenXmlElement element. (Inherited from OpenXmlElement)
Append(IEnumerable<OpenXmlElement>)	Appends each element from a list of elements to the end of the current element's list of child elements. (Inherited from OpenXmlElement)
Append(OpenXmlElement[])	Appends each element from an array of elements to the end of the current element's list of child elements. (Inherited from OpenXmlElement)
AppendChild<T>(T)	Appends the specified element to the end of the current element's list of child nodes. (Inherited from OpenXmlElement)
ClearAllAttributes()	Clears all of the attributes, including both known attributes and extended attributes. (Inherited from OpenXmlElement)
Clone()	Creates a duplicate of the current node. (Inherited from OpenXmlElement)
CloneNode(Boolean)	Creates a duplicate of this node.
Descendants()	Enumerates all of the current element's descendants. (Inherited from OpenXmlElement)
Descendants<T>()	Enumerate all of the current element's descendants of type T. (Inherited from OpenXmlElement)
Elements()	Enumerates all of the current element's children. (Inherited from OpenXmlElement)
Elements<T>()	Enumerates only the current element's children that have the specified type. (Inherited from OpenXmlElement)
ElementsAfter()	Enumerates all of the sibling elements that follow the current element and have the same parent as the current element. (Inherited from OpenXmlElement)
ElementsBefore()	Enumerates all of the sibling elements that precede the current element and have the same parent as the current element. (Inherited from OpenXmlElement)
GetAttribute(String, String)	Gets an Open XML attribute with the specified tag name and namespace URI. (Inherited from OpenXmlElement)
GetAttributes()	Gets a list that contains a copy of all the attributes. (Inherited from OpenXmlElement)
GetEnumerator()	Returns an enumerator that iterates through the child collection. (Inherited from OpenXmlElement)
GetFirstChild<T>()	Finds the first child element in type T. (Inherited from OpenXmlElement)
InsertAfter<T>(T, OpenXmlElement)	Inserts the specified element immediately after the specified reference element. (Inherited from OpenXmlElement)
InsertAfterSelf<T>(T)	Inserts the specified element immediately after the current element. (Inherited from OpenXmlElement)
InsertAt<T>(T, Int32)	Inserts the specified element at the specified index in the current element's list of child elements. (Inherited from OpenXmlElement)
InsertBefore<T>(T, OpenXmlElement)	Inserts the specified element immediately before the specified reference element. (Inherited from OpenXmlElement)
InsertBeforeSelf<T>(T)	Inserts the specified element immediately before the current element. (Inherited from OpenXmlElement)
IsAfter(OpenXmlElement)	Determines if the current element appears after a specified element in document order. (Inherited from OpenXmlElement)
IsBefore(OpenXmlElement)	Determines if the current element appears before a specified element in document order. (Inherited from OpenXmlElement)
LookupNamespace(String)	Resolves the namespace prefix in the context of the current node. (Inherited from OpenXmlElement)
LookupPrefix(String)	Finds the corresponding prefix for a namespace uri in the current element scope. (Inherited from OpenXmlElement)
NextSibling()	Gets the OpenXmlElement element that immediately follows the current OpenXmlElement element. Returns null (Nothing in Visual Basic) if there is no next OpenXmlElement element. (Inherited from OpenXmlElement)
NextSibling<T>()	Gets the OpenXmlElement element with the specified type that follows the current OpenXmlElement element. Returns null (Nothing in Visual Basic) if there is no next OpenXmlElement. (Inherited from OpenXmlElement)
PrependChild<T>(T)	Inserts the specified element at the beginning of the current element's list of child elements. (Inherited from OpenXmlElement)
PreviousSibling()	Gets the OpenXmlElement element that immediately precedes the current OpenXmlElement element. Returns null (Nothing in Visual Basic ) if there is no preceding OpenXmlElement element. (Inherited from OpenXmlElement)
PreviousSibling<T>()	Gets the OpenXmlElement element with the specified type that precedes the current OpenXmlElement. Returns null (Nothing in Visual Basic) if there is no preceding OpenXmlElement element. (Inherited from OpenXmlElement)
Remove()	Removes the current element from its parent. (Inherited from OpenXmlElement)
RemoveAllChildren()	Removes all child elements of the current element. (Inherited from OpenXmlLeafElement)
RemoveAllChildren<T>()	Remove all of the current element's child elements that are of type T. (Inherited from OpenXmlElement)
RemoveAnnotations(Type)	Removes the annotations of the specified type from the current OpenXmlElement element. (Inherited from OpenXmlElement)
RemoveAnnotations<T>()	Removes the annotations with the specified type from the current OpenXmlElement element. (Inherited from OpenXmlElement)
RemoveAttribute(String, String)	Removes the attribute from the current element. (Inherited from OpenXmlElement)
RemoveChild<T>(T)	Removes the specified child element from the current element's list of child elements. (Inherited from OpenXmlElement)
RemoveNamespaceDeclaration(String)	Removes the namespace declaration for the specified prefix. Removes nothing if there is no prefix. (Inherited from OpenXmlElement)
ReplaceChild<T>(OpenXmlElement, T)	Replaces a child element with another child element in the current element's list of child elements. (Inherited from OpenXmlElement)
SetAttribute(OpenXmlAttribute)	Sets an attribute to the specified element. If the attribute is a known attribute, the value of the attribute is set. If the attribute is an extended attribute, the 'openxmlAttribute' is added to the extended attributes list. (Inherited from OpenXmlElement)
SetAttributes(IEnumerable<OpenXmlAttribute>)	Sets a number of attributes to the element. If an attribute is a known attribute, the value of the attribute is set. If an attribute is an extended attribute, the 'openxmlAttribute' is added to the extended attributes list. (Inherited from OpenXmlElement)
WriteTo(XmlWriter)	Saves the current node to the specified XmlWriter. (Inherited from OpenXmlElement)

Explicit Interface Implementations

IEnumerable.GetEnumerator()	(Inherited from OpenXmlElement)
IEnumerable<OpenXmlElement>.GetEnumerator()	Returns an enumerator that iterates through the child collection. (Inherited from OpenXmlElement)