TreeNodeStyle.CopyFrom(Style) 方法
定义
重要
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将指定 Style 对象的样式属性复制到当前 TreeNodeStyle 对象。
public:
override void CopyFrom(System::Web::UI::WebControls::Style ^ s);public override void CopyFrom (System.Web.UI.WebControls.Style s);override this.CopyFrom : System.Web.UI.WebControls.Style -> unitPublic Overrides Sub CopyFrom (s As Style)参数
示例
下面的代码示例演示如何使用 CopyFrom 方法将指定 Style 对象的 TreeNodeStyle 样式属性复制到调用此方法的对象中。 请注意，将替换每个样式属性。
<%@ 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 Button_Click(Object sender, EventArgs e)
{
// Copy the leaf node styles from the TreeNodeOne TreeView into the
// TreeViewResults TreeView.
TreeViewResults.LeafNodeStyle.CopyFrom(TreeViewOne.LeafNodeStyle);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>TreeNodeStyle CopyFrom Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>TreeNodeStyle CopyFrom 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"
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="CopyNodeStyleButton"
Text="Copy LeafNodeStyle"
OnClick="Button_Click"
runat="server"/>
</td>
<td>
</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 Button_Click(ByVal sender As Object, ByVal e As EventArgs)
' Copy the leaf node styles from the TreeNodeOne TreeView into the
' TreeViewResults TreeView.
TreeViewResults.LeafNodeStyle.CopyFrom(TreeViewOne.LeafNodeStyle)
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>TreeNodeStyle CopyFrom Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>TreeNodeStyle CopyFrom 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"
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="CopyNodeStyleButton"
Text="Copy LeafNodeStyle"
OnClick="Button_Click"
runat="server"/>
</td>
<td>
</td>
</tr>
</table>
</form>
</body>
</html>
注解
CopyFrom使用 方法在调用此方法的 对象中TreeNodeStyle复制指定Style对象的样式属性。
注意
当前 TreeNodeStyle 对象中的所有属性都由指定 Style 对象中的相应属性替换。
若要在不替换已设置的任何值的情况下复制样式属性，请使用 MergeWith 方法。
