Forms Data Controls :: Hierarchical Data In Gridview From Dataset?
Mar 27, 2010
I want to display child rows in the datagrid after the + sign is selected (like grouping & outlining in excel). This is automatic in infragistic grids but when i did in asp (no more infragistics) it doesnt work. here is my code (very simple stuff)
<%@ 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">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
</div>
</form>
</body>
</html>
DataSet ds = new DataSet();
ds.Tables.Add(myDataAccess.ExecuteSelectCommand("uspCategories"));
ds.Tables[0].TableName = "tblCategories";
ds.Tables.Add(myDataAccess.ExecuteSelectCommand("uspProducts"));
ds.Tables[1].TableName = "tblProducts";
DataRelation rel = new DataRelation("relation", ds.Tables[0].Columns["CategoryID"], ds.Tables[1].Columns["CategoryID"]);
ds.Relations.Add(rel);
GridView1.DataSource = ds;
GridView1.DataBind();
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[Code].....
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[Code]....
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[Code]....
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[Code]....
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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using Oracle.DataAccess.Client; // ODP.NET Oracle managed provider
using Oracle.DataAccess.Types;
namespace MyTestApp {
public partial class _Default : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
OracleConnection conn = new OracleConnection("User Id=UID; Password=PWD; Data Source=XE; Pooling=false"); try { conn.Open(); } catch ( OracleException oe ){
Console.WriteLine("ERROR : " + oe.Message); }
if ( !Page.IsPostBack ) {
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// clean up connection conn.Dispose(); }
static void GetMoleculesToShow( OracleConnection conn ){
String division; String rxotc; String molecule_name;
String prodnum; String proddesc; String molecule_class; String nonactive;
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catch (OracleException oe) {
Console.WriteLine("ERROR : " + oe.Message); }
finally { cmd.Dispose(); } } } }
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I am using the following :
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ASPX CODE
[Code].... C#
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[Code]....
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[Code]....
Public Function getmyds() As DataSet
Dim dsUser1 As DataSet = New DataSet()
Dim tbUser1 As DataTable = dsUser1.Tables.Add("Users")
tbUser1.Columns.Add("UserName")
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next
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