Item (XmlNodelist function): Difference between revisions

From m204wiki
Jump to navigation Jump to search
m (1 revision)
m (1 revision)
Line 24: Line 24:
For example (showing that the Item method name can be left off),
For example (showing that the Item method name can be left off),
if <tt>%nlis</tt> is an XmlNodelist in the following code:
if <tt>%nlis</tt> is an XmlNodelist in the following code:
<pre>
<p class="code">For %i From 1 To %nlis:Count
    For %i From 1 To %nlis:Count
  %nod = %nlis(%i)
      %nod = %nlis(%i)
  ...
      ...
</p>
</pre>
The preceding example is the same as this one, with the Item method name coded:
The preceding example is the same as this one, with the Item method name coded:
<pre>
<p class="code">For %i From 1 To %nlis:Count
    For %i From 1 To %nlis:Count
  %nod = %nlis:Item(%i)
      %nod = %nlis:Item(%i)
  ...
      ...
</p>
</pre>
===Example===
===Example===


Line 40: Line 38:
an XmlNodelist; <tt>%nod = %nlis(%i)</tt>
an XmlNodelist; <tt>%nod = %nlis(%i)</tt>
implicitly uses the Item method:
implicitly uses the Item method:
<pre>
<p class="code">Begin
    Begin
%i is Float
    %i is Float
%doc is Object XmlDoc
    %doc is Object XmlDoc
%nod is Object XmlNode
    %nod is Object XmlNode
%nlis is object xmlnodelist
    %nlis is object xmlnodelist
%t Enumeration XmlNodeType
    %t Enumeration XmlNodeType
%doc = New
    %doc = New
%doc:LoadXml('<top><a b="b1"><a1/></a> -
    %doc:LoadXml('<top><a b="b1"><a1/></a> -
      <a><a2 b="b2"></a2></a></top>')
          <a><a2 b="b2"></a2></a></top>')


    %nlis = %doc:SelectNodes('//.')
%nlis = %doc:SelectNodes('//.')
    For %i From 1 To %nlis:Count
For %i From 1 To %nlis:Count
      %nod = %nlis(%i)
  %nod = %nlis(%i)
      %t = %nod:Type
  %t = %nod:Type
      If %t EQ Root Then
  If %t EQ Root Then
        Print 'Item ' %i ': Root'
    Print 'Item ' %i ': Root'
      ElseIf %t EQ Element Then
  ElseIf %t EQ Element Then
        Print 'Item ' %i ': Element' And %nod:QName
    Print 'Item ' %i ': Element' And %nod:QName
      ElseIf %t EQ Attribute Then
  ElseIf %t EQ Attribute Then
        Print 'Item ' %i ': Attribute' And %nod:QName -
    Print 'Item ' %i ': Attribute' And %nod:QName -
          With '="' With %nod:Value With '"'
      With '="' With %nod:Value With '"'
      Else
  Else
        Print 'Item ' %i ':' And %t:ToString  -
    Print 'Item ' %i ':' And %t:ToString  -
          And '=' And %nod:Value
      And '=' And %nod:Value
      End If
  End If
    End For
End For


    %doc:Print
%doc:Print
    End
End
</pre>
</p>


The example result follows:
The example result follows:
<pre>
<p class="output">Item 1: Root
    Item 1: Root
Item 2: Element top
    Item 2: Element top
Item 3: Element a
    Item 3: Element a
Item 4: Element a1
    Item 4: Element a1
Item 5: Element a
    Item 5: Element a
Item 6: Element a2
    Item 6: Element a2
<top>
    <top>
  <a b="b1">
      <a b="b1">
      <a1/>
          <a1/>
  </a>
      </a>
  <a>
      <a>
      <a2 b="b2"/>
          <a2 b="b2"/>
  </a>
      </a>
</top>
    </top>
</p>
</pre>
===Request-Cancellation Errors===
===Request-Cancellation Errors===
<ul>
<ul>

Revision as of 05:43, 25 January 2011

Retrieve an item from this nodelist (XmlNodelist class)

This function creates an XmlNode from one of the items on an XmlNodelist.

Syntax

%nod = nodl:Item( number)

Syntax terms

%nod An XmlNode that points to the selected node.
nlis The XmlNodelist from which the item is taken.
num A positive integer that identifies which item to select.

Usage notes

Under Sirius Mods version 6.8 and later, the method name, Item, is not necessary on an XmlNodelist Item reference. For example (showing that the Item method name can be left off), if %nlis is an XmlNodelist in the following code:

For %i From 1 To %nlis:Count %nod = %nlis(%i) ...

The preceding example is the same as this one, with the Item method name coded:

For %i From 1 To %nlis:Count %nod = %nlis:Item(%i) ...

Example

This example prints the node type and the names and/or values of items on an XmlNodelist; %nod = %nlis(%i) implicitly uses the Item method:

Begin %i is Float %doc is Object XmlDoc %nod is Object XmlNode %nlis is object xmlnodelist %t Enumeration XmlNodeType %doc = New %doc:LoadXml('<top><a b="b1"><a1/></a> - <a><a2 b="b2"></a2></a></top>') %nlis = %doc:SelectNodes('//.') For %i From 1 To %nlis:Count %nod = %nlis(%i) %t = %nod:Type If %t EQ Root Then Print 'Item ' %i ': Root' ElseIf %t EQ Element Then Print 'Item ' %i ': Element' And %nod:QName ElseIf %t EQ Attribute Then Print 'Item ' %i ': Attribute' And %nod:QName - With '="' With %nod:Value With '"' Else Print 'Item ' %i ':' And %t:ToString - And '=' And %nod:Value End If End For %doc:Print End

The example result follows:

Item 1: Root Item 2: Element top Item 3: Element a Item 4: Element a1 Item 5: Element a Item 6: Element a2 <top> <a b="b1"> <a1/> </a> <a> <a2 b="b2"/> </a> </top>

Request-Cancellation Errors

  • The selected item number (num) is not in the range from 1 to the number of items on the nodelist.

See also