AdjacentText (XmlDoc property): Difference between revisions

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<dd>This setting permits without request cancellation the following operations that place text nodes adjacent to each other:
<dd>This setting permits without request cancellation the following operations that place text nodes adjacent to each other:
<ul>
<ul>
<li><var>[[DeleteSubtree_(XmlDoc/XmlNode_subroutine)|DeleteSubtree]]</var> applied to a subtree that is between <var>Text</var> nodes
<li><var>[[DeleteSubtree_(XmlDoc/XmlNode_subroutine)|DeleteSubtree]]</var> applied to a subtree that is between [[XmlDoc API#XmlDoc node types|Text nodes]]
 
<li><var>[[AddText_(XmlNode_function)|AddText]]</var> applied to an <var>Element</var> whose last child is a <var>Text</var> node
<li><var>[[AddText_(XmlNode_function)|AddText]]</var> applied to an <var>Element</var> whose last child is a <var>Text</var> node
<li><var>[[InsertTextBefore_(XmlNode_function)|InsertTextBefore]]</var> applied to a <var>Text</var> node or to the sibling following a <var>Text</var> node
<li><var>[[InsertTextBefore_(XmlNode_function)|InsertTextBefore]]</var> applied to a <var>Text</var> node or to the sibling following a <var>Text</var> node
<li><var>[[AddSubtree_(XmlDoc/XmlNode_function)|AddSubtree]]</var> with a <var>Text</var> node source subtree applied to a target <var>Element</var> that has a <var>Text</var> node as its last child
<li><var>[[AddSubtree_(XmlDoc/XmlNode_function)|AddSubtree]]</var> with a <var>Text</var> node source subtree applied to a target <var>Element</var> that has a <var>Text</var> node as its last child
<li><var>[[InsertSubtreeBefore_(XmlNode_function)|InsertSubtreeBefore]]</var> with a <var>Text</var> node source subtree applied to a target that is a <var>Text</var> node or a target that is the sibling following a <var>Text</var> node
<li><var>[[InsertSubtreeBefore_(XmlNode_function)|InsertSubtreeBefore]]</var> with a <var>Text</var> node source subtree applied to a target that is a <var>Text</var> node or a target that is the sibling following a <var>Text</var> node
</ul>
</ul>
If one of these operations occurs, the values of the adjacent <var>Text</var> nodes are combined to form a new <var>Text</var> node.  The new node takes the place of the former <var>Text</var> node(s), and the former is (are) deleted.  Any <var>XmlNode</var> or <var>XmlNodelist</var> pointers to the former <var>Text</var> node(s) are set to <var>Null</var>.
If one of these operations occurs, the values of the adjacent <var>Text</var> nodes are combined to form a new <var>Text</var> node.  The new node takes the place of the former <var>Text</var> node(s), and the former is (are) deleted.  Any <var>XmlNode</var> or <var>XmlNodelist</var> pointers to the former <var>Text</var> node(s) are set to <var>Null</var>.
<dt><b>Disallow</b>
<dt><b>Disallow</b>
<dd>This is the initial value of the <var>AdjacentText</var> property.  With this setting, the operations cited above for <var>Combine</var> result in request cancellation, since they place <var>Text</var> nodes adjacent to each other.
<dd>This is the initial value of the <var>AdjacentText</var> property.  With this setting, the operations cited above for <var>Combine</var> result in request cancellation, since they place <var>Text</var> nodes adjacent to each other.
</dl>
</dl>


'''Note:''' As with all enumerations, the <var>ToString</var> method implicitly converts an enumeration value to a character string whose value is the name of the enumeration value. For more information about methods available to all enumerations, see [[Enumerations#Common enumeration methods|"Common enumeration methods"]].
<p class="note">'''Note:''' As with all enumerations, the <var>ToString</var> method implicitly converts an enumeration value to a character string whose value is the name of the enumeration value. For more information about methods available to all enumerations, see [[Enumerations#Common enumeration methods|Common enumeration methods]]. </p>


==Examples==
==Examples==

Revision as of 17:10, 3 March 2014

Are adjacent text nodes allowed? (XmlDoc class)

Syntax

%currentXmlAdjacentTextSetting = doc:AdjacentText doc:AdjacentText = newXmlAdjacentTextSetting

Syntax terms

%currentXmlAdjacentTextSetting The XmlAdjacentTextSetting enumeration value (see below) of doc's AdjacentText property.
doc An XmlDoc object expression.
newXmlAdjacentTextSetting The XmlAdjacentTextSetting value (see below) to assign to doc's AdjacentText property.

XmlAdjacentTextSetting enumeration

The values of the AdjacentText property are of type Enumeration XmlAdjacentTextSetting. These values and their meanings are shown below.

Combine
This setting permits without request cancellation the following operations that place text nodes adjacent to each other:
  • DeleteSubtree applied to a subtree that is between Text nodes
  • AddText applied to an Element whose last child is a Text node
  • InsertTextBefore applied to a Text node or to the sibling following a Text node
  • AddSubtree with a Text node source subtree applied to a target Element that has a Text node as its last child
  • InsertSubtreeBefore with a Text node source subtree applied to a target that is a Text node or a target that is the sibling following a Text node

If one of these operations occurs, the values of the adjacent Text nodes are combined to form a new Text node. The new node takes the place of the former Text node(s), and the former is (are) deleted. Any XmlNode or XmlNodelist pointers to the former Text node(s) are set to Null.

Disallow
This is the initial value of the AdjacentText property. With this setting, the operations cited above for Combine result in request cancellation, since they place Text nodes adjacent to each other.

Note: As with all enumerations, the ToString method implicitly converts an enumeration value to a character string whose value is the name of the enumeration value. For more information about methods available to all enumerations, see Common enumeration methods.

Examples

  1. The following example obtains the string value of the AdjacentText property:

    %str = %doc:AdjacentText:toString

  2. The following request shows the effect of using the Combine option forming a new node, making pointers Null:

    begin %d object xmlDoc auto new %d:adjacentText = Combine %e object xmlNode %t object xmlNode %t2 object xmlNode %t3 object xmlNode %e = %d:addElement('topElement') %t = %e:addText('Texta.') Call %e:addText('Textb.') if %t is null then print 'First now Null' end if %d:print %t = %e:selectSingleNode('node()') print 'Value of first child node:' and %t:value %t2 = %e:addElement('subElement') %t3 = %e:addText('Textc.') Call %t2:deleteSubtree if %t is null then print 'First now Null' end if if %t3 is null then print 'Last now Null' end if %d:print %t = %e:selectSingleNode('node()') print 'Value of first child node:' and %t:value end

    The result of the above request is:

    First now Null <topElement>Texta.Textb.</topElement> Value of first child node: Texta.Textb. First now Null Last now Null <topElement>Texta.Textb.Textc.</topElement> Value of first child node: Texta.Textb.Textc.

Request-cancellation errors (for set method)

  • The newXmlAdjacentTextSetting argument is an invalid value.

See also