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TreeNodeStyle.VerticalPadding Eigenschaft

Definition

Ruft den Abstand oberhalb und unterhalb des Texts in einem Knoten ab oder legt diesen Abstand fest.

public:
 property System::Web::UI::WebControls::Unit VerticalPadding { System::Web::UI::WebControls::Unit get(); void set(System::Web::UI::WebControls::Unit value); };
public System.Web.UI.WebControls.Unit VerticalPadding { get; set; }
member this.VerticalPadding : System.Web.UI.WebControls.Unit with get, set
Public Property VerticalPadding As Unit

Eigenschaftswert

Unit

Der Abstand über und unter dem Text eines Knotens (in Pixel). Der Standardwert ist 0 Pixel.

Ausnahmen

Der ausgewählte Wert vom Typ Percentage oder kleiner als 0.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie Die VerticalPadding Eigenschaft verwendet wird, um den vertikalen Abstand um den Text eines Knotens anzugeben.


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  void HorizontalPadding_Changed(Object sender, EventArgs e)
  {

    // Programmatically set the HorizontalPadding property based on the 
    // user's selection.
    ItemsTreeView.ParentNodeStyle.HorizontalPadding = Convert.ToInt32(HorizontalPaddingList.SelectedItem.Text);

  }

  void VerticalPadding_Changed(Object sender, EventArgs e)
  {

    // Programmatically set the VerticalPadding property based on the 
    // user's selection.
    ItemsTreeView.ParentNodeStyle.VerticalPadding = Convert.ToInt32(VerticalPaddingList.SelectedItem.Text);

  }

  void NodeSpacing_Changed(Object sender, EventArgs e)
  {

    // Programmatically set the NodeSpacing property based on the 
    // user's selection.
    ItemsTreeView.ParentNodeStyle.NodeSpacing = Convert.ToInt32(NodeSpacingList.SelectedItem.Text);

  }

  void ChildNodePadding_Changed(Object sender, EventArgs e)
  {

    // Programmatically set the ChildNodesPadding property based on the 
    // user's selection.
    ItemsTreeView.ParentNodeStyle.ChildNodesPadding = Convert.ToInt32(ChildNodesPaddingList.SelectedItem.Text);

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeNodeStyle Example</title>
</head>
<body>  
    <form id="form1" runat="server">
    
      <h3>TreeNodeStyle Example</h3>
      
      <!-- Set the styles for the leaf nodes declaratively. -->
      <asp:TreeView id="ItemsTreeView"
        Font-Names= "Arial"
        ForeColor="Blue"
        ParentNodeStyle-ForeColor="Green"
        ParentNodeStyle-HorizontalPadding="5" 
        ParentNodeStyle-VerticalPadding="5"  
        ParentNodeStyle-NodeSpacing="5"
        ParentNodeStyle-ChildNodesPadding="5"
        ExpandDepth="4"  
        runat="server">
         
        <Nodes>
        
          <asp:TreeNode Text="Table of Contents"
            SelectAction="None">
             
            <asp:TreeNode Text="Chapter One">
            
              <asp:TreeNode Text="Section 1.0">
              
                <asp:TreeNode Text="Topic 1.0.1"/>
                <asp:TreeNode Text="Topic 1.0.2"/>
                <asp:TreeNode Text="Topic 1.0.3"/>
              
              </asp:TreeNode>
              
              <asp:TreeNode Text="Section 1.1">
              
                <asp:TreeNode Text="Topic 1.1.1"/>
                <asp:TreeNode Text="Topic 1.1.2"/>
                <asp:TreeNode Text="Topic 1.1.3"/>
                <asp:TreeNode Text="Topic 1.1.4"/>
              
              </asp:TreeNode>
            
            </asp:TreeNode>
            
          </asp:TreeNode>
        
        </Nodes>
        
      </asp:TreeView>
      
      <hr />
      
      <h5>Select the style settings for the parent nodes.</h5>
      
      <table cellpadding="5">
      
        <tr align="right">
        
          <td>
          
            Horizontal Padding:
          
            <asp:DropDownList id="HorizontalPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="HorizontalPadding_Changed" 
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
          <td>
          
            Vertical Padding:
          
            <asp:DropDownList id="VerticalPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="VerticalPadding_Changed" 
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
        </tr>
        
        <tr align="right">
        
          <td>
          
            Node Spacing:
          
            <asp:DropDownList id="NodeSpacingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="NodeSpacing_Changed"   
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
          <td>
          
            Child Nodes Padding:
          
            <asp:DropDownList id="ChildNodesPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="ChildNodePadding_Changed"  
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
        
        </tr>
      
      </table>
       
    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  Sub HorizontalPadding_Changed(ByVal sender As Object, ByVal e As EventArgs)

    ' Programmatically set the HorizontalPadding property based on the 
    ' user's selection.
    ItemsTreeView.ParentNodeStyle.HorizontalPadding = Convert.ToInt32(HorizontalPaddingList.SelectedItem.Text)

  End Sub

  Sub VerticalPadding_Changed(ByVal sender As Object, ByVal e As EventArgs)

    ' Programmatically set the VerticalPadding property based on the 
    ' user's selection.
    ItemsTreeView.ParentNodeStyle.VerticalPadding = Convert.ToInt32(VerticalPaddingList.SelectedItem.Text)

  End Sub

  Sub NodeSpacing_Changed(ByVal sender As Object, ByVal e As EventArgs)

    ' Programmatically set the NodeSpacing property based on the 
    ' user's selection.
    ItemsTreeView.ParentNodeStyle.NodeSpacing = Convert.ToInt32(NodeSpacingList.SelectedItem.Text)

  End Sub

  Sub ChildNodePadding_Changed(ByVal sender As Object, ByVal e As EventArgs)

    ' Programmatically set the ChildNodesPadding property based on the 
    ' user's selection.
    ItemsTreeView.ParentNodeStyle.ChildNodesPadding = Convert.ToInt32(ChildNodesPaddingList.SelectedItem.Text)

  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeNodeStyle Example</title>
</head>
<body>  
    <form id="form1" runat="server">
    
      <h3>TreeNodeStyle Example</h3>
      
      <!-- Set the styles for the leaf nodes declaratively. -->
      <asp:TreeView id="ItemsTreeView"
        Font-Names= "Arial"
        ForeColor="Blue"
        ParentNodeStyle-ForeColor="Green"
        ParentNodeStyle-HorizontalPadding="5" 
        ParentNodeStyle-VerticalPadding="5"  
        ParentNodeStyle-NodeSpacing="5"
        ParentNodeStyle-ChildNodesPadding="5"
        ExpandDepth="4"  
        runat="server">
         
        <Nodes>
        
          <asp:TreeNode Text="Table of Contents"
            SelectAction="None">
             
            <asp:TreeNode Text="Chapter One">
            
              <asp:TreeNode Text="Section 1.0">
              
                <asp:TreeNode Text="Topic 1.0.1"/>
                <asp:TreeNode Text="Topic 1.0.2"/>
                <asp:TreeNode Text="Topic 1.0.3"/>
              
              </asp:TreeNode>
              
              <asp:TreeNode Text="Section 1.1">
              
                <asp:TreeNode Text="Topic 1.1.1"/>
                <asp:TreeNode Text="Topic 1.1.2"/>
                <asp:TreeNode Text="Topic 1.1.3"/>
                <asp:TreeNode Text="Topic 1.1.4"/>
              
              </asp:TreeNode>
            
            </asp:TreeNode>
            
          </asp:TreeNode>
        
        </Nodes>
        
      </asp:TreeView>
      
      <hr />
      
      <h5>Select the style settings for the parent nodes.</h5>
      
      <table cellpadding="5">
      
        <tr align="right">
        
          <td>
          
            Horizontal Padding:
          
            <asp:DropDownList id="HorizontalPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="HorizontalPadding_Changed" 
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
          <td>
          
            Vertical Padding:
          
            <asp:DropDownList id="VerticalPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="VerticalPadding_Changed" 
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
        </tr>
        
        <tr align="right">
        
          <td>
          
            Node Spacing:
          
            <asp:DropDownList id="NodeSpacingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="NodeSpacing_Changed"   
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
          
          <td>
          
            Child Nodes Padding:
          
            <asp:DropDownList id="ChildNodesPaddingList"
              AutoPostBack="true"
              OnSelectedIndexChanged="ChildNodePadding_Changed"  
              runat="server">
              
              <asp:ListItem>0</asp:ListItem>
              <asp:ListItem Selected="true">5</asp:ListItem>
              <asp:ListItem>10</asp:ListItem>
              
            </asp:DropDownList> 
          
          </td>
        
        </tr>
      
      </table>
       
    </form>
  </body>
</html>

Hinweise

Mithilfe der VerticalPadding Eigenschaft können Sie den vertikalen Abstand um den Text des Knotens steuern, auf den die TreeNodeStyle Klasse angewendet wird. Dieser Abstand wird zwischen dem oberen Rand des Texts und dem Rahmen des Textbereichs sowie zwischen dem unteren Rand des Texts und dem Rahmen für den Text eingefügt. Um den horizontalen Abstand zu steuern, verwenden Sie die HorizontalPadding Eigenschaft.

Der Wert dieser Eigenschaft wird im Ansichtszustand gespeichert.

Gilt für

Siehe auch