RestoreControlTree
Markup:
<%@ Register TagPrefix="cc1" Namespace="TemplatedSampleSite.aspnet_forum"
Assembly="TemplatedSampleSite" %>
<%@ Page language="c#" Codebehind="RestoreControlTree_Example.aspx.cs" AutoEventWireup="false" Inherits="TemplatedSampleSite.aspnet_forum.RestoreControlTree_Example" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>RestroreControlTreeExample</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="FlowLayout">
<form id="RestroreControlTreeExample" method="post" runat="server">
<P>
<cc1:RestoreMyChildren id="LoadWriteUserControl1" runat="server" />
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button></P>
<P> </P>
<P> </P>
<P>
<asp:Button id="Button2" runat="server" Text="Nothing"></asp:Button></P>
</form>
</body>
</HTML>
A codebehind and a class.
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 TemplatedSampleSite.aspnet_forum
{
/// <summary>
/// Summary description for RestroreControlTreeExample.
/// </summary>
public class RestoreControlTree_Example : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Button Button2;
protected TemplatedSampleSite.aspnet_forum.RestoreMyChildren LoadWriteUserControl1;
private void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
LoadWriteUserControl1.DataSource = FakeData;
LoadWriteUserControl1.DataBind();
}
}
protected ArrayList FakeData
{
get
{
ArrayList temp = new ArrayList();
temp.Add(new string[]{"1","USD"});
temp.Add(new string[]{"2","CAD"});
return temp;
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void Button1_Click(object sender, System.EventArgs e)
{
TextBox innerBox = LoadWriteUserControl1.FindControl("1") as TextBox;
Response.Write(innerBox.Text + "<HR>");
innerBox = LoadWriteUserControl1.FindControl("2") as TextBox;
Response.Write(innerBox.Text + "<HR>");
Label innerlabel = LoadWriteUserControl1.FindControl("Label2") as Label;
innerlabel.Text = "BOO";
}
}
public class RestoreMyChildren : Control
{
ArrayList _dataSource;
public ArrayList DataSource
{
get
{
return _dataSource;
}
set
{
_dataSource = value;
}
}
private object[] Data
{
get
{
return ViewState["Data"] as object[];
}
set
{
ViewState["Data"] = value;
}
}
override protected void LoadViewState(object savedState)
{
base.LoadViewState(savedState);
EnsureChildControls();
}
protected override void OnDataBinding(System.EventArgs e)
{
PrepareData();
base.OnDataBinding(e);
}
private void PrepareData()
{
if(DataSource==null)
{
return;
}
object[] buildData = new object[DataSource.Count];//2,DataSource.Count];
for(int index=0;index<DataSource.Count;index++)
{
string[] item = DataSource[index] as string[];
buildData[index] = new string[]{item[0],item[1]};
}
Data = buildData;
}
protected override void CreateChildControls()
{
base.CreateChildControls();
foreach(object dataItem in Data)
{
string[] item = dataItem as string[];
this.Controls.Add(new LiteralControl("<HR>"));
Label label = new Label();
label.ID="Label" + item[0];
label.Text=item[1];
this.Controls.Add(label);
TextBox textbox = new TextBox();
textbox.ID=item[0];
textbox.Text=item[1];
this.Controls.Add(textbox);
this.Controls.Add(new LiteralControl("<HR>"));
}
}
}
}