将每一个子节点的NavigatorUrl属性设为"./default.aspx?id=软件开发部"类似上面这样的,这样每次单击子节点都会重新load当前页面,
判断id值是否为空是否是你需要的就成了不明白给我发信息
判断id值是否为空是否是你需要的就成了不明白给我发信息
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<%@import namespace="system.data.oledb"%>
<%@import namespace="system.data"%>
<%@ Page Language="vb" debug="true"%>
<script runat=server>
sub page_load(sender as object,e as eventargs)
dim NodeText as string="-1"
dim ds as dataset=new dataset
dim conn as oledbconnection
conn=new oledbconnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source="&server.mappath("dATABASE\MYTREE.mdb"))
dim mycommand as oledbDataAdapter
mycommand=new oledbDataAdapter("select * from tree where TreeNode='"+NodeText+"' order by NodeNumber asc",conn)
conn.open()
mycommand.fill(ds)
dim i as integer
'===根结点数
for i=0 to ds.tables(0).rows.count-1
dim myTreeNode as new TreeNode()
myTreeNode.Text=ds.tables(0).rows(i).item(1)
myTreeNode.ImageUrl="images/closedfolder.gif"
myTreeNode.ExpandedImageUrl="images/openfolder.gif"
TreeView1.Nodes.Add(myTreeNode)
CreateChildTree(myTreeNode,ds.tables(0).rows(i).item(0),ds.tables(0).rows(i).item(1))
next
end subsub CreateChildTree(ParentNode as TreeNode,NodeId as String,ParentNodeText as string)
dim ds as dataset=new dataset()
dim conn as oledbconnection
conn=new oledbconnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source="&server.mappath("database\mytree.mdb"))
dim mycommand as oledbDataAdapter
mycommand=new oledbDataAdapter("select * from tree where TreeNode='"+NodeId+"' order by NodeNumber desc",conn)
conn.open()
mycommand.fill(ds)
dim i as integer
for i=0 to ds.tables(0).rows.count-1
dim myTreeNode as new TreeNode()
myTreeNode.Text=ds.tables(0).rows(i).item(1)
myTreeNode.ImageUrl="images/book.gif"
dim myTreeNodeText as string=myTreeNode.Text
dim ParentNodeTextS as string=ParentNodeText
myTreeNodeText=server.urlencode(myTreeNodeText)
ParentNodeTextS=server.urlencode(ParentNodeTextS)
'myTreeNode.navigateurl="TarGet_Url.aspx?NodeText="+myTreeNode.Text+"&ParentNodeText="+ParentNodeText
myTreeNode.navigateurl="TarGet_Url.aspx?NodeText="+myTreeNodeText+"&ParentNodeText="+ParentNodeTexts
myTreeNode.Target="mainFrame"
ParentNode.Nodes.Add(myTreeNode)
next
end sub
</script>
<html>
<head>
<title></title>
</head>
<body MS_POSITIONING="GridLayout" bgcolor=#94CBFF>
<form id="Form1" method="post" runat="server">
<iewc:TreeView id="TreeView1" runat="server" selectexpands=true AutoSelect="True"></iewc:TreeView>
</form>
</body>
</html>
祝你好运
[email protected]
谢谢各位!!!
TreeNode node=TreeView1.GetNodeFromIndex(ind);
Response.Write(node.Text);
,NodeText为一变量,可这个参数好像根本就没有起作用,这是为什么呢?
具体代码如下:
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace ProjectAdmin
{
/// <summary>
/// WebForm4 的摘要说明。
/// </summary>
public class WebForm4 : System.Web.UI.Page
{
public string NodeText="信息中心";
protected System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
protected System.Data.SqlClient.SqlConnection sqlConnection1;
protected ProjectAdmin.dsDengji dsDengji1;
protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
protected System.Data.SqlClient.SqlCommand sqlSelectCommand1;
protected System.Data.SqlClient.SqlCommand sqlInsertCommand1;
protected System.Data.SqlClient.SqlCommand sqlUpdateCommand1;
protected System.Data.SqlClient.SqlCommand sqlDeleteCommand1;
protected System.Web.UI.WebControls.DataGrid DataGrid1;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
dsDengji1.Clear();
sqlDataAdapter1.Fill(dsDengji1);
if (!IsPostBack)
{
DataGrid1.DataBind();
} } #region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
#endregion private void TreeView1_SelectedIndexChange(object sender, Microsoft.Web.UI.WebControls.TreeViewSelectEventArgs e)
{
Microsoft.Web.UI.WebControls.TreeNode
NewNode=TreeView1.GetNodeFromIndex(TreeView1.SelectedNodeIndex);
NodeText=NewNode.Text;
sqlDataAdapter1.Fill(dsDengji1);
DataGrid1.DataBind();
}
}
}
是不是我将代码放错了地方??
如果分数不够,可以在加,
但这个问题人命关天,
希望各位务必救我一命。