TreeNodeStyle.MergeWith(Style) 方法

参考

定义

命名空间:: System.Web.UI.WebControls

程序集:: System.Web.dll

重要

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将指定 Style 对象的样式属性与当前 TreeNodeStyle 对象的样式属性组合在一起。

public:
 override void MergeWith(System::Web::UI::WebControls::Style ^ s);

public override void MergeWith (System.Web.UI.WebControls.Style s);

override this.MergeWith : System.Web.UI.WebControls.Style -> unit

Public Overrides Sub MergeWith (s As Style)

参数

s: Style

将与当前节点设置合并的 Style。

示例

下面的代码示例演示如何使用 MergeWith 方法将指定 Style 对象的样式属性与调用此方法的 TreeNodeStyle 对象的样式属性组合在一起。请注意，仅替换未设置 TreeNodeStyle 的属性。


<%@ 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 MergeButton_Click(Object sender, EventArgs e)
  {

    // Combine the leaf node styles of the TreeNodeOne TreeView and the 
    // TreeViewResults TreeView.
    TreeViewResults.LeafNodeStyle.MergeWith(TreeViewOne.LeafNodeStyle);

  }

  void ResetButton_Click(Object sender, EventArgs e)
  {

    // Reset the LeafNodeStyle of the TreeViewResults TreeView.
    TreeViewResults.LeafNodeStyle.Reset();

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeNodeStyle MergeWith Example</title>
</head>
<body>  
    <form id="form1" runat="server">
    
      <h3>TreeNodeStyle MergeWith Example</h3>
      
      <table cellspacing="30">
        
        <tr>
        
          <th>
          
            TreeView One
          
          </th>
          
          <th>
          
            TreeView Result
          
          </th>
        
        </tr>
        
        <tr valign="top">
        
          <td>
          
            <!-- Set the styles for the leaf nodes declaratively. -->
            <asp:TreeView id="TreeViewOne"
              ExpandDepth="4" 
              LeafNodeStyle-BackColor="Yellow"
              LeafNodeStyle-Font-Bold="true"  
              LeafNodeStyle-ForeColor="Black"  
              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>
            
                </asp:TreeNode>
        
              </Nodes>
        
            </asp:TreeView>
          
          </td>
          
          <td>
          
            <!-- Set the styles for the leaf nodes declaratively. -->
            <asp:TreeView id="TreeViewResults"
              ExpandDepth="4" 
              LeafNodeStyle-ForeColor="Green"  
              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>
            
                </asp:TreeNode>
        
              </Nodes>
        
            </asp:TreeView>
          
          </td>
        
        </tr>
        
        <tr>
        
          <td>
          
            <asp:Button ID="MergeNodeStyleButton" 
              Text="Merge LeafNodeStyle"
              OnClick="MergeButton_Click" 
              runat="server"/>
          
          </td>
          
          <td>
          
            <asp:Button ID="ResetButton" 
              Text="Reset LeafNodeStyle"
              OnClick="ResetButton_Click" 
              runat="server"/>
          
          </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 MergeButton_Click(ByVal sender As Object, ByVal e As EventArgs)

    ' Combine the leaf node styles of the TreeNodeOne TreeView and the 
    ' TreeViewResults TreeView.
    TreeViewResults.LeafNodeStyle.MergeWith(TreeViewOne.LeafNodeStyle)

  End Sub

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

    ' Reset the LeafNodeStyle of the TreeViewResults TreeView.
    TreeViewResults.LeafNodeStyle.Reset()

  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeNodeStyle MergeWith Example</title>
</head>
<body>  
    <form id="form1" runat="server">
    
      <h3>TreeNodeStyle MergeWith Example</h3>
      
      <table cellspacing="30">
        
        <tr>
        
          <th>
          
            TreeView One
          
          </th>
          
          <th>
          
            TreeView Result
          
          </th>
        
        </tr>
        
        <tr valign="top">
        
          <td>
          
            <!-- Set the styles for the leaf nodes declaratively. -->
            <asp:TreeView id="TreeViewOne"
              ExpandDepth="4" 
              LeafNodeStyle-BackColor="Yellow"
              LeafNodeStyle-Font-Bold="true"  
              LeafNodeStyle-ForeColor="Black"  
              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>
            
                </asp:TreeNode>
        
              </Nodes>
        
            </asp:TreeView>
          
          </td>
          
          <td>
          
            <!-- Set the styles for the leaf nodes declaratively. -->
            <asp:TreeView id="TreeViewResults"
              ExpandDepth="4" 
              LeafNodeStyle-ForeColor="Green"  
              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>
            
                </asp:TreeNode>
        
              </Nodes>
        
            </asp:TreeView>
          
          </td>
        
        </tr>
        
        <tr>
        
          <td>
          
            <asp:Button ID="MergeNodeStyleButton" 
              Text="Merge LeafNodeStyle"
              OnClick="MergeButton_Click" 
              runat="server"/>
          
          </td>
          
          <td>
          
            <asp:Button ID="ResetButton" 
              Text="Reset LeafNodeStyle"
              OnClick="ResetButton_Click" 
              runat="server"/>
          
          </td>
        
        </tr>
      
      </table>
       
    </form>
  </body>
</html>

注解

MergeWith使用方法可将指定Style对象的样式属性与从中调用此方法的 TreeNodeStyle 对象的样式属性组合在一起。

注意

方法 MergeWith 通过将当前 TreeNodeStyle 对象中未设置的每个属性设置为指定 Style 对象中的相应值来联接样式属性。仅更新尚未设置的属性。如果未设置指定 Style 对象中的属性，则当前 TreeNodeStyle 对象中的相应属性不会更改。

适用于

TreeNodeStyle.MergeWith(Style) 方法

定义

参数

示例

注解

适用于

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