DataGrid的牵套，实现树型结构._wpf datagrid树结构

作者：很楠不爱3 | 2024-05-17 09:13:51

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wpf datagrid树结构

<%@ Page language="c#" Codebehind="DataGridMasterForm.aspx.cs" AutoEventWireup="false" Inherits="Webs.DataGridMasterForm" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>DataGridMasterForm</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="DataGridMasterForm" method="post" runat="server">
<h2>使用DataGrid控件实现以主细表显示数据</h2>
<asp:DataGrid id="dgMaster" style="Z-INDEX: 101; LEFT: 48px; POSITION: absolute; TOP: 64px" runat="server" AutoGenerateColumns="False" ShowHeader="False" Width="368px">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<TABLE cellSpacing="0" cellPadding="0" width="100%" border="0">
<TR>
<TD bgColor="#3399ff"><FONT color="#ffffff"><B>根目录：
<%# DataBinder.Eval(Container.DataItem, "ParentId") %>
</B></FONT>
</TD>
</TR>
<TR>
<TD align="right">
<asp:DataGrid id=dgDetail runat="server" AutoGenerateColumns="False" DataSource='<%# ((System.Data.DataRowView)Container.DataItem).CreateChildView("tableRelation") %>' DataKeyField="Id" BorderColor="#336666" BorderStyle="Double" BorderWidth="3px" BackColor="White" CellPadding="4" GridLines="Horizontal" Width="100%" Font-Size="Smaller">
<SelectedItemStyle Font-Bold="True" ForeColor="White" BackColor="#339966"></SelectedItemStyle>
<ItemStyle ForeColor="#333333" BackColor="White"></ItemStyle>
<HeaderStyle Font-Bold="True" ForeColor="White" BackColor="#336666"></HeaderStyle>
<FooterStyle ForeColor="#333333" BackColor="White"></FooterStyle>
<Columns>

<asp:BoundColumn DataField="Id" HeaderText="ID"></asp:BoundColumn>
<asp:BoundColumn DataField="DirectionName" HeaderText="子目录"></asp:BoundColumn>
</Columns>
<PagerStyle HorizontalAlign="Center" ForeColor="White" BackColor="#336666" Mode="NumericPages"></PagerStyle>
</asp:DataGrid></TD>
</TR>
</TABLE>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</HTML>

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;
using System.Data.SqlClient;
using System.Configuration;

namespace Webs
{
    /// <summary>
    /// DataGridMasterForm 的摘要说明。
    /// </summary>
    public class DataGridMasterForm : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.DataGrid dgMaster;
        protected System.Web.UI.WebControls.DataGrid dgDetail;

        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            if(!IsPostBack)
            {
                DataGridBind();
            }
        }
        private void DataGridBind()
        {
            //定义数据连接对象,其中数据库连接字符串是在Web.Config文件中定义的
            SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["connStr"].ToString());
            //创建数据适配器对象
            SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM s0; SELECT * FROM s1",conn);
            //创建DataSet对象
            DataSet ds = new DataSet();
            try
            {
                //填充数据集
                da.Fill(ds);
                //设定表名字
                ds.Tables[0].TableName = "s0";
                ds.Tables[1].TableName = "s1";
                DataColumn Parent = ds.Tables["s0"].Columns["Id"];
                DataColumn Child = ds.Tables["s1"].Columns["ParentId"];
                DataRelation tableRelation = new DataRelation("tableRelation", Parent, Child, false);
                ds.Relations.Add(tableRelation);
                //进行数据绑定
                dgMaster.DataSource = ds.Tables["s0"].DefaultView;
                dgMaster.DataBind();
            }
            catch(Exception error)
            {
                Response.Write(error.ToString());
            }

        }

        #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()
        {
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion
    }
}

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