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<?xml version="1.0" standalone="no"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<refentry id="class-pygtktreemodelrowiter">
<refnamediv>
<refname>gtk.TreeModelRowIter</refname>
<refpurpose>an object for iterating over a set of <link
linkend="class-pygtktreemodelrow"><classname>gtk.TreeModelRow</classname></link>
objects.</refpurpose>
</refnamediv>
<refsect1>
<title>Synopsis</title>
<classsynopsis language="python">
<ooclass><classname>gtk.TreeModelRowIter</classname></ooclass>
<methodsynopsis language="python">
<methodname><link linkend="method-gtktreemodelrowiter--next">next</link></methodname>
<methodparam></methodparam>
</methodsynopsis>
</classsynopsis>
</refsect1>
<refsect1>
<title>Ancestry</title>
<synopsis>+-- <link linkend="class-gobject">gobject.GBoxed</link>
+-- <link linkend="class-gtkwidget">gtk.TreeModelRowIter</link>
</synopsis>
</refsect1>
<refsect1>
<title>Description</title>
<para>A <link
linkend="class-pygtktreemodelrowiter"><classname>gtk.TreeModelRowIter</classname></link>
is an object that implements the Python Iterator protocol. It provides the
means to iterate over a set of <link
linkend="class-pygtktreemodelrow"><classname>gtk.TreeModelRow</classname></link>
objects in a <link
linkend="class-gtktreemodel"><classname>gtk.TreeModel</classname></link>. A
<link
linkend="class-pygtktreemodelrowiter"><classname>gtk.TreeModelRowIter</classname></link>
is created by calling the Python <function>iter</function>() function on a
<link
linkend="class-gtktreemodel"><classname>gtk.TreeModel</classname></link>
object:</para>
<programlisting>
treemodelrowiter = iter(treestore)
</programlisting>
<para>or, calling the <link
linkend="method-gtktreemodelrow--iterchildren"><methodname>gtk.TreeModelRow.iterchildren</methodname>()</link>
method to iterate over its child rows.</para>
<para>Each time you call the <link
linkend="method-gtktreemodelrowiter--next"><methodname>next</methodname>()</link>
method it returns the next sibling <link
linkend="class-pygtktreemodelrow"><classname>gtk.TreeModelRow</classname></link>
. When there are no rows left the StopIteration exception is raised. Note
that a <link
linkend="class-pygtktreemodelrowiter"><classname>gtk.TreeModelRowIter</classname></link>
does not iterate over the child rows of the rows it is iterating
over. You'll have to use the <link
linkend="method-gtktreemodelrow--iterchildren"><methodname>gtk.TreeModelRow.iterchildren</methodname>()</link>
method to retrieve an iterator for the child rows.</para>
</refsect1>
<refsect1>
<title>Methods</title>
<refsect2 id="method-gtktreemodelrowiter--next">
<title>gtk.TreeModelRowIter.next</title>
<programlisting><methodsynopsis language="python">
<methodname>next</methodname>
<methodparam></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>the next <link
linkend="class-pygtktreemodelrow"><classname>gtk.TreeModelRow</classname></link></simpara></listitem>
</varlistentry>
</variablelist>
<para>The <methodname>next</methodname>() method returns the next
<link
linkend="class-pygtktreemodelrow"><classname>gtk.TreeModelRow</classname></link>
in the set of rows it is iterating over. When there are no more rows left
the StopIteration exception is raised.</para>
</refsect2>
</refsect1>
</refentry>
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