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ASP.NET2.0 TreeView 动态生成(两表关系)

2008-03-19 11:57 309 查看

.cs

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page

...{

protected void Page_Load(object sender, EventArgs e)

...{

if(!IsPostBack)

TreeViewBind();

}

private void TreeViewBind()

...{

NewsSetTableAdapters.T_WEB_NEWSCLASSTableAdapter classda = new NewsSetTableAdapters.T_WEB_NEWSCLASSTableAdapter();

NewsSetTableAdapters.T_WEB_NEWSSUBJECTTableAdapter subda = new NewsSetTableAdapters.T_WEB_NEWSSUBJECTTableAdapter();

NewsSet ds=new NewsSet();

classda.Fill(ds.T_WEB_NEWSCLASS);

subda.Fill(ds.T_WEB_NEWSSUBJECT);

foreach (DataRow masterRow in ds.T_WEB_NEWSCLASS.Rows)

...{

TreeNode masterNode = new TreeNode();

masterNode.Text = masterRow["CLASSNAME"].ToString();

masterNode.Value = masterRow["CLASSID"].ToString();

foreach (DataRow childRow in masterRow.GetChildRows("rel"))

...{

TreeNode childNode = new TreeNode();

childNode.Text = childRow["SUBJECTNAME"].ToString();

childNode.Value = childRow["SUBJECTID"].ToString();

masterNode.Expanded = false;

masterNode.ChildNodes.Add(childNode);

}

TreeView1.Nodes.Add(masterNode);

}

}

.aspx

<%...@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

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

</head>

<body>

<div>

<asp:TreeView ID="TreeView1" runat="server" Height="346px" ImageSet="News" NodeIndent="10"

Width="1px">

<NodeStyle Font-Names="Arial" Font-Size="10pt" ForeColor="Black" HorizontalPadding="5px"

NodeSpacing="0px" VerticalPadding="0px" />

</asp:TreeView>

</div>

</form>

</body>

</html>

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