TreeNodeStyle.Reset Метод
Определение
Важно!
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Возвращает объект TreeNodeStyle в исходное состояние.
public:
override void Reset();public override void Reset ();override this.Reset : unit -> unitPublic Overrides Sub Reset ()Примеры
В следующем примере кода показано, как использовать Reset метод для возврата объекта в TreeNodeStyle его состояние по умолчанию.
<%@ 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>
Комментарии
Reset Используйте метод, чтобы удалить все ранее определенные элементы стиля и сбросить TreeNodeStyle объект в исходное состояние (то есть по умолчанию).