<Type Name="TreeNodeAttribute" FullName="Gtk.TreeNodeAttribute"> <TypeSignature Language="C#" Maintainer="Mike Kestner" Value="public sealed class TreeNodeAttribute : System.Attribute" /> <AssemblyInfo> <AssemblyName>gtk-sharp</AssemblyName> <AssemblyPublicKey> </AssemblyPublicKey> <AssemblyVersion>2.6.0.0</AssemblyVersion> </AssemblyInfo> <ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement> <Docs> <summary>An attribute to specify tree node information of a class.</summary> <remarks> <para> This attribute can be applied to a class which implements the <see cref="T:Gtk.ITreeNode" /> interface to provide additional information about the node type to the <see cref="T:Gtk.NodeStore" /> which will contain the nodes. </para> <para> In the following example, the class MyTreeNode is tagged as a tree node with 3 columns: <example> <code lang="C#"> [TreeNode(ColumnCount=3)] public class MyTreeNode : ITreeNode { ... } </code> </example></para> <para> In the following example, the class MyListNode is tagged as a node with 2 columns and no child nodes: <example> <code lang="C#"> [TreeNode(ColumnCount=2, ListOnly=true)] public class MyListNode : ITreeNode { ... } </code> </example></para> </remarks> </Docs> <Base> <BaseTypeName>System.Attribute</BaseTypeName> </Base> <Interfaces /> <Attributes> <Attribute> <AttributeName>System.AttributeUsage(AllowMultiple=False, Inherited=True, ValidOn=System.AttributeTargets.Class)</AttributeName> </Attribute> </Attributes> <Members> <Member MemberName=".ctor"> <MemberSignature Language="C#" Value="public TreeNodeAttribute ();" /> <MemberType>Constructor</MemberType> <ReturnValue /> <Parameters /> <Docs> <summary>TreeNodeAttribute constructor</summary> <remarks>Instantiates a <see cref="T:Gtk.TreeNodeAttribute" /></remarks> </Docs> </Member> <Member MemberName="ColumnCount"> <MemberSignature Language="C#" Value="public int ColumnCount { set; get; };" /> <MemberType>Property</MemberType> <ReturnValue> <ReturnType>System.Int32</ReturnType> </ReturnValue> <Parameters /> <Docs> <summary>ColumnCount named value.</summary> <value>a <see cref="T:System.Int32" /></value> <remarks> Specifies the number of columns the node exposes. A <see cref="T:Gtk.TreeNodeValueAttribute" /> should be added to each of the properties of the class which represent the individual column values. </remarks> </Docs> </Member> <Member MemberName="ListOnly"> <MemberSignature Language="C#" Value="public bool ListOnly { set; get; };" /> <MemberType>Property</MemberType> <ReturnValue> <ReturnType>System.Boolean</ReturnType> </ReturnValue> <Parameters /> <Docs> <summary>ListOnly named value.</summary> <value>a <see cref="T:System.Boolean" /></value> <remarks> Specifies if the node can have children. For list views, this tells the NodeStore that it is non-hierarchical and it can expose flags so that the NodeView doesn't include space for expanders in the column layout. </remarks> <since version="Gtk# 2.4" /> </Docs> </Member> </Members> </Type>