Query Class

项目
03/31/2011

Query For Data Source Records To Merge.When the object is serialized out as xml, its qualified name is w:query.

Inheritance Hierarchy

System.Object
  DocumentFormat.OpenXml.OpenXmlElement
    DocumentFormat.OpenXml.OpenXmlLeafElement
      DocumentFormat.OpenXml.Wordprocessing.StringType
        DocumentFormat.OpenXml.Wordprocessing.Query

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

Syntax

声明
Public Class Query _
    Inherits StringType
用法
Dim instance As Query

public class Query : StringType

Remarks

[ISO/IEC 29500-1 第 1 个版本]

17.14.26 query (Query For Data Source Records To Merge)

This element contains the Structured Query Language string (as defined by the normative reference in§3) that shall be run against the specified external data source to return the set of records from the external data which shall be imported into merged WordprocessingML documents when the mail merge operation is performed.

If this element is omitted, then no query shall be associated with the current data source.

[Example: Consider a WordprocessingML document that has been connected to an external database. In addition, consider that the data specifies that the table within the database titled Documentation shall be the specific table whose data is imported. This shall be specified in WordprocessingML as follows:

<w:query w:val="SELECT * FROM Documentation" />

The query element specifies the syntax for the data source query via its val attribute. end example]

Parent Elements
mailMerge (§17.14.20)

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).

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]

Thread Safety

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

通过

Query Class

Inheritance Hierarchy

Syntax

Remarks

Thread Safety

See Also

Reference

其他资源