Sintaxis declarativa del control de servidor Web TreeView

Actualización: noviembre 2007

Muestra datos jerárquicos, como una tabla de contenido, en una estructura de árbol.

<asp:TreeView
    AccessKey="string"
    AutoGenerateDataBindings="True|False"
    BackColor="color name|#dddddd"
    BorderColor="color name|#dddddd"
    BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|Groove|Ridge|
        Inset|Outset"
    BorderWidth="size"
    CollapseImageToolTip="string"
    CollapseImageUrl="uri"
    CssClass="string"
    DataSource="string"
    DataSourceID="string"
    EnableClientScript="True|False"
    Enabled="True|False"
    EnableTheming="True|False"
    EnableViewState="True|False"
    ExpandDepth="string|FullyExpand|0|1|2|3|4|5|6|7|8|9|10|11|12|13|
        14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30"
    ExpandImageToolTip="string"
    ExpandImageUrl="uri"
    Font-Bold="True|False"
    Font-Italic="True|False"
    Font-Names="string"
    Font-Overline="True|False"
    Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|Medium|
       Large|X-Large|XX-Large"
    Font-Strikeout="True|False"
    Font-Underline="True|False"
    ForeColor="color name|#dddddd"
    Height="size"
    ID="string"
    ImageSet="Custom|XPFileExplorer|Msdn|WindowsHelp|Simple|Simple2|
        BulletedList|BulletedList2|BulletedList3|BulletedList4|
        Arrows|News|Contacts|Inbox|Events|Faq"
    LineImagesFolder="string"
    MaxDataBindDepth="integer"
    NodeIndent="integer"
    NodeWrap="True|False"
    NoExpandImageUrl="uri"
    OnDataBinding="DataBinding event handler"
    OnDataBound="DataBound event handler"
    OnDisposed="Disposed event handler"
    OnInit="Init event handler"
    OnLoad="Load event handler"
    OnPreRender="PreRender event handler"
    OnSelectedNodeChanged="SelectedNodeChanged event handler"
    OnTreeNodeCheckChanged="TreeNodeCheckChanged event handler"
    OnTreeNodeCollapsed="TreeNodeCollapsed event handler"
    OnTreeNodeDataBound="TreeNodeDataBound event handler"
    OnTreeNodeExpanded="TreeNodeExpanded event handler"
    OnTreeNodePopulate="TreeNodePopulate event handler"
    OnUnload="Unload event handler"
    PathSeparator="string"
    PopulateNodesFromClient="True|False"
    runat="server"
    ShowCheckBoxes="None|Root|Parent|Leaf|All"
    ShowExpandCollapse="True|False"
    ShowLines="True|False"
    SkinID="string"
    SkipLinkText="string"
    Style="string"
    TabIndex="integer"
    Target="string"
    ToolTip="string"
    Visible="True|False"
    Width="size"
>
        <DataBindings>
                <asp:TreeNodeBinding
                    DataMember="string"
                    Depth="integer"
                    FormatString="string"
                    ImageToolTip="string"
                    ImageToolTipField="string"
                    ImageUrl="uri"
                    ImageUrlField="string"
                    href="uri"
                    hrefField="string"
                    PopulateOnDemand="True|False"
                    SelectAction="Select|Expand|SelectExpand|None"
                    ShowCheckBox="string"
                    Target="string"
                    TargetField="string"
                    Text="string"
                    TextField="string"
                    ToolTip="string"
                    ToolTipField="string"
                    Value="string"
                    ValueField="string"
                />
        </DataBindings>
        <HoverNodeStyle />
        <LeafNodeStyle
            BackColor="color name|#dddddd"
            BorderColor="color name|#dddddd"
            BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|
                Groove|Ridge|Inset|Outset"
            BorderWidth="size"
            ChildNodesPadding="size"
            CssClass="string"
            Font-Bold="True|False"
            Font-Italic="True|False"
            Font-Names="string"
            Font-Overline="True|False"
            Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|
                Medium|Large|X-Large|XX-Large"
            Font-Strikeout="True|False"
            Font-Underline="True|False"
            ForeColor="color name|#dddddd"
            Height="size"
            HorizontalPadding="size"
            ImageUrl="uri"
            NodeSpacing="size"
            OnDisposed="Disposed event handler"
            VerticalPadding="size"
            Width="size"
        />
        <LevelStyles>
                <asp:TreeNodeStyle
                    BackColor="color name|#dddddd"
                    BorderColor="color name|#dddddd"
                    BorderStyle="NotSet|None|Dotted|Dashed|Solid|
                        Double|Groove|Ridge|Inset|Outset"
                    BorderWidth="size"
                    ChildNodesPadding="size"
                    CssClass="string"
                    Font-Bold="True|False"
                    Font-Italic="True|False"
                    Font-Names="string"
                    Font-Overline="True|False"
                    Font-Size="string|Smaller|Larger|XX-Small|
                        X-Small|Small|Medium|Large|X-Large|XX-Large"
                    Font-Strikeout="True|False"
                    Font-Underline="True|False"
                    ForeColor="color name|#dddddd"
                    Height="size"
                    HorizontalPadding="size"
                    ImageUrl="uri"
                    NodeSpacing="size"
                    OnDisposed="Disposed event handler"
                    VerticalPadding="size"
                    Width="size"
                />
        </LevelStyles>
        <Nodes>
                <asp:TreeNode
                    Checked="True|False"
                    Expanded="string"
                    ImageToolTip="string"
                    ImageUrl="uri"
                    href="uri"
                    PopulateOnDemand="True|False"
                    SelectAction="Select|Expand|SelectExpand|None"
                    Selected="True|False"
                    ShowCheckBox="string"
                    Target="string"
                    Text="string"
                    ToolTip="string"
                    Value="string"
>
                </asp:TreeNode>
        </Nodes>
        <NodeStyle
            BackColor="color name|#dddddd"
            BorderColor="color name|#dddddd"
            BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|
                Groove|Ridge|Inset|Outset"
            BorderWidth="size"
            ChildNodesPadding="size"
            CssClass="string"
            Font-Bold="True|False"
            Font-Italic="True|False"
            Font-Names="string"
            Font-Overline="True|False"
            Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|
                Medium|Large|X-Large|XX-Large"
            Font-Strikeout="True|False"
            Font-Underline="True|False"
            ForeColor="color name|#dddddd"
            Height="size"
            HorizontalPadding="size"
            ImageUrl="uri"
            NodeSpacing="size"
            OnDisposed="Disposed event handler"
            VerticalPadding="size"
            Width="size"
        />
        <ParentNodeStyle
            BackColor="color name|#dddddd"
            BorderColor="color name|#dddddd"
            BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|
                Groove|Ridge|Inset|Outset"
            BorderWidth="size"
            ChildNodesPadding="size"
            CssClass="string"
            Font-Bold="True|False"
            Font-Italic="True|False"
            Font-Names="string"
            Font-Overline="True|False"
            Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|
                Medium|Large|X-Large|XX-Large"
            Font-Strikeout="True|False"
            Font-Underline="True|False"
            ForeColor="color name|#dddddd"
            Height="size"
            HorizontalPadding="size"
            ImageUrl="uri"
            NodeSpacing="size"
            OnDisposed="Disposed event handler"
            VerticalPadding="size"
            Width="size"
        />
        <RootNodeStyle
            BackColor="color name|#dddddd"
            BorderColor="color name|#dddddd"
            BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|
                Groove|Ridge|Inset|Outset"
            BorderWidth="size"
            ChildNodesPadding="size"
            CssClass="string"
            Font-Bold="True|False"
            Font-Italic="True|False"
            Font-Names="string"
            Font-Overline="True|False"
            Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|
                Medium|Large|X-Large|XX-Large"
            Font-Strikeout="True|False"
            Font-Underline="True|False"
            ForeColor="color name|#dddddd"
            Height="size"
            HorizontalPadding="size"
            ImageUrl="uri"
            NodeSpacing="size"
            OnDisposed="Disposed event handler"
            VerticalPadding="size"
            Width="size"
        />
        <SelectedNodeStyle
            BackColor="color name|#dddddd"
            BorderColor="color name|#dddddd"
            BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|
                Groove|Ridge|Inset|Outset"
            BorderWidth="size"
            ChildNodesPadding="size"
            CssClass="string"
            Font-Bold="True|False"
            Font-Italic="True|False"
            Font-Names="string"
            Font-Overline="True|False"
            Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|
                Medium|Large|X-Large|XX-Large"
            Font-Strikeout="True|False"
            Font-Underline="True|False"
            ForeColor="color name|#dddddd"
            Height="size"
            HorizontalPadding="size"
            ImageUrl="uri"
            NodeSpacing="size"
            OnDisposed="Disposed event handler"
            VerticalPadding="size"
            Width="size"
        />
</asp:TreeView>

Comentarios

El control TreeView se utiliza para mostrar datos jerárquicos, como una tabla de contenido o un directorio de archivos, en una estructura de árbol y admite las siguientes características:

• Compatibilidad con enlace de datos que permite enlazar los nodos del control a datos XML, de tablas o relacionales.

• Compatibilidad con la navegación del sitio a través de la integración con el control SiteMapDataSource.

• El texto del nodo se puede mostrar como texto sin formato o como hipervínculos.

• Acceso mediante programación al modelo de objetos TreeView para crear árboles, rellenar nodos, definir propiedades, etc., de forma dinámica.

• Población de nodos del cliente (en exploradores compatibles).

• Capacidad para mostrar una casilla junto a cada nodo.

• Capacidad de personalizar el aspecto mediante temas, imágenes definidas por el usuario y estilos.

Para obtener más información sobre el control TreeView, vea Información general sobre TreeView (Control de servidor Web).

Ejemplo

El ejemplo de código siguiente muestra cómo enlazar el control TreeView a un origen de datos XML.

<asp:TreeView id="BookTreeView" dataSourceID="BookXmlDataSource" runat="server">
<DataBindings>
  <asp:TreeNodeBinding DataMember="Book" TextField="Title"/>
  <asp:TreeNodeBinding DataMember="Chapter" TextField="Heading"/>
  <asp:TreeNodeBinding DataMember="Section" TextField="Heading"/>
</DataBindings>
</asp:TreeView>

<asp:XmlDataSource id="BookXmlDataSource" runat="server">
  <Data>
    <Book Title="Book Title">
    <Chapter Heading="Chapter 1">
      <Section Heading="Section 1">
      </Section>
      <Section Heading="Section 2">
      </Section>
    </Chapter>
    <Chapter Heading="Chapter 2">
      <Section Heading="Section 1">
      </Section>
    </Chapter>
    </Book>
  </Data>
</asp:XmlDataSource>

<asp:TreeView id="BookTreeView" dataSourceID="BookXmlDataSource" runat="server">
<DataBindings>
  <asp:TreeNodeBinding DataMember="Book" TextField="Title"/>
  <asp:TreeNodeBinding DataMember="Chapter" TextField="Heading"/>
  <asp:TreeNodeBinding DataMember="Section" TextField="Heading"/>
</DataBindings>
</asp:TreeView>

<asp:XmlDataSource id="BookXmlDataSource" runat="server">
  <Data>
    <Book Title="Book Title">
    <Chapter Heading="Chapter 1">
      <Section Heading="Section 1">
      </Section>
      <Section Heading="Section 2">
      </Section>
    </Chapter>
    <Chapter Heading="Chapter 2">
      <Section Heading="Section 1">
      </Section>
    </Chapter>
    </Book>
  </Data>
</asp:XmlDataSource>

Vea también

Referencia

Información general sobre TreeView (Control de servidor Web)

TreeView