Code-Inside Blog

<add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting" assembly="System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>

<add path="ChartImg.axd" verb="GET,HEAD" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>

<asp:chart id="Chart1" runat="server" Height="296px" Width="412px" Palette="BrightPastel" imagetype="Png" BorderDashStyle="Solid" BackSecondaryColor="White" BackGradientStyle="TopBottom" BorderWidth="2" backcolor="#D3DFF0" BorderColor="26, 59, 105">
	<Titles>
		<asp:Title Text="With datasource in code behind" />
	</Titles>
	<legends>
		<asp:Legend IsTextAutoFit="False" Name="Default" BackColor="Transparent" Font="Trebuchet MS, 8.25pt, style=Bold"></asp:Legend>
	</legends>
	<borderskin skinstyle="Emboss"></borderskin>
	<series>
		<asp:Series Name="Column" BorderColor="180, 26, 59, 105">
		</asp:Series>
	</series>
	<chartareas>
		<asp:ChartArea Name="ChartArea1" BorderColor="64, 64, 64, 64" BorderDashStyle="Solid" BackSecondaryColor="White" BackColor="64, 165, 191, 228" ShadowColor="Transparent" BackGradientStyle="TopBottom">
			<area3dstyle Rotation="10" perspective="10" Inclination="15" IsRightAngleAxes="False" wallwidth="0" IsClustered="False"></area3dstyle>
			<axisy linecolor="64, 64, 64, 64">
				<labelstyle font="Trebuchet MS, 8.25pt, style=Bold" />
				<majorgrid linecolor="64, 64, 64, 64" />
			</axisy>
			<axisx linecolor="64, 64, 64, 64">
				<labelstyle font="Trebuchet MS, 8.25pt, style=Bold" />
				<majorgrid linecolor="64, 64, 64, 64" />
			</axisx>
		</asp:ChartArea>
	</chartareas>
</asp:chart>

    public partial class Index : ViewPage
    {
        protected void Page_Load(object sender, System.EventArgs e)
        {
            foreach (int value in (List<int>)this.ViewData["Chart"])
            {
                this.Chart1.Series["Column"].Points.Add(value);
            }
        }
    }

        <p>
        <%
						System.Web.UI.DataVisualization.Charting.Chart Chart2 = new System.Web.UI.DataVisualization.Charting.Chart();
                        Chart2.Width = 412;
                        Chart2.Height = 296;
                        Chart2.RenderType = RenderType.ImageTag;

                        Chart2.Palette = ChartColorPalette.BrightPastel;
                        Title t = new Title("No Code Behind Page", Docking.Top, new System.Drawing.Font("Trebuchet MS", 14, System.Drawing.FontStyle.Bold), System.Drawing.Color.FromArgb(26, 59, 105));
                        Chart2.Titles.Add(t);
                        Chart2.ChartAreas.Add("Series 1");

						// create a couple of series
                        Chart2.Series.Add("Series 1");
                        Chart2.Series.Add("Series 2");

						// add points to series 1
                        foreach (int value in (List<int>)ViewData["Chart"])
                        {
                            Chart2.Series["Series 1"].Points.AddY(value);
                        }

                        // add points to series 2
                        foreach (int value in (List<int>)ViewData["Chart"])
                        {
                            Chart2.Series["Series 2"].Points.AddY(value + 1);
                        }

                        Chart2.BorderSkin.SkinStyle = BorderSkinStyle.Emboss;
                        Chart2.BorderColor = System.Drawing.Color.FromArgb(26, 59, 105);
                        Chart2.BorderlineDashStyle = ChartDashStyle.Solid;
                        Chart2.BorderWidth = 2;

                        Chart2.Legends.Add("Legend1");

						// Render chart control
                        Chart2.Page = this;
						HtmlTextWriter writer = new HtmlTextWriter(Page.Response.Output);
						Chart2.RenderControl(writer);

                     %>
        </p>

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="SampleUserControl.ascx.cs" Inherits="DynamicASPControls.SampleUserControl" %>
<div style="background-color: red; height: 200px; top: 200px">
    Fertig geladen \o/
</div>

public class ScriptService : System.Web.Services.WebService
    {
        [WebMethod(EnableSession = true)]
        public string GetControlHtml(string controlLocation)
        {
            Page page = new Page();
            UserControl userControl = (UserControl)page.LoadControl(controlLocation);
            userControl.EnableViewState = false;
            HtmlForm form = new HtmlForm();
            form.Controls.Add(userControl);
            page.Controls.Add(form);
            StringWriter textWriter = new StringWriter();
            HttpContext.Current.Server.Execute(page, textWriter, false);
            return CleanHtml(textWriter.ToString());
        }

        /// <summary>
        /// Removes Form tags
        /// </summary>
        private string CleanHtml(string html)
        {
            return Regex.Replace(html, @"<[/]?(form)[^>]*?>", "", RegexOptions.IgnoreCase);
        }
    }

  <system.web.extensions>
    <scripting>
      <webServices>
        <jsonSerialization maxJsonLength="5000000" />
      </webServices>
    </scripting>
  </system.web.extensions>

<%@ Page Language="C#" AutoEventWireup="true" EnableViewState="false" CodeBehind="Default.aspx.cs" Inherits="DynamicASPControls._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>Untitled Page</title>

</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
        <Services>
            <asp:ServiceReference Path="~/ScriptService.asmx" />
        </Services>
    </asp:ScriptManager>

    <button type="button" onclick="generateUserControl()">Generate UserControl!</button>
    <div id="result">

    </div>
    </form>

        <script type="text/javascript">
        function generateUserControl()
        {
            document.getElementById("result").innerHTML = "Load...";
            DynamicASPControls.ScriptService.GetControlHtml("~/SampleUserControl.ascx", generateUserControlCompleted);
        }

        function ready(result)
        {
            alert(result);
        }

        function generateUserControlCompleted(result)
        {
            document.getElementById("result").innerHTML = result;
        }

        function failed(error)
        {
            alert(error);
        }

    </script>
</body>
</html>

<%@ 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>Untitled Page</title>
    <script type="text/javascript">
    // wird gleich gezeigt
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <button type="button" onclick="createXlsData()">Create XLS</button>
    </div>
    </form>
</body>
</html>

<table>
  <tr>
     <td>Sample</td>
  </tr>
</table>

function createXlsData()
    {
    var data = "<table>";
            data += "<tr>";
                data += "<td>Test 1</td>";
                data += "<td>Test 2</td>";
             data += "</tr>"

    for(i=0; i < 10; i++)
    {
        var singleLine = "<tr>";
                singleLine += "<td> Test Data1: " + i + "</td>";
                singleLine += "<td> Test Data2: "  + i + "</td>";
        singleLine += "</tr>";
        data += singleLine;
    }
        data += "</table>";
    sendXlsData(data);
    }

<%@ 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>Untitled Page</title>
    <script type="text/javascript">
    var DataExchangeHttpRequest;

    function createXlsData()
    {
    var data = "<table>";
            data += "<tr>";
                data += "<td>Test 1</td>";
                data += "<td>Test 2</td>";
             data += "</tr>"

    for(i=0; i < 10; i++)
    {
        var singleLine = "<tr>";
                singleLine += "<td> Test Data1: " + i + "</td>";
                singleLine += "<td> Test Data2: "  + i + "</td>";
        singleLine += "</tr>";
        data += singleLine;
    }
        data += "</table>";
    sendXlsData(data);
    }

    function sendXlsData(data)
    {
    if (window.XMLHttpRequest) // Mozilla, Safari, Opera, IE7
        {
        DataExchangeHttpRequest = new XMLHttpRequest();
        }
    else if (window.ActiveXObject) // IE6, IE5
        {
        DataExchangeHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }

    DataExchangeHttpRequest.onreadystatechange = openXlsPage;
    DataExchangeHttpRequest.open('POST', 'ExcelHandler.ashx', true);
    DataExchangeHttpRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
    DataExchangeHttpRequest.setRequestHeader('Content-Length',data.length);

    DataExchangeHttpRequest.send(data);
    }
    function openXlsPage()
    {
        if (DataExchangeHttpRequest.readyState == 4 && DataExchangeHttpRequest.status == 200)
        {
        window.open("ExcelHandler.ashx?openXls=true","xls");
        }
    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <button type="button" onclick="createXlsData()">Create XLS</button>
    </div>
    </form>
</body>
</html>

<%@ WebHandler Language="C#" Class="ExcelHandler" %>

using System;
using System.Web;

public class ExcelHandler : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{

    public void ProcessRequest(HttpContext context)
    {

        if (context.Request.Params["openXls"] == "true")
        {
            // display data
            if (context.Session["ExcelData"] != null)
            {
                context.Response.ContentType = "application/vnd.ms-excel";
                context.Response.ContentEncoding = System.Text.Encoding.Default;
                context.Response.Write(context.Session["ExcelData"]);
            }
            else
            {
                context.Response.Write("session empty");
            }
        }
        else
        {
            // save data in session
            context.Response.ContentType = "application/vnd.ms-excel";
            string data = "";
            using (System.IO.StreamReader reader = new System.IO.StreamReader(context.Request.InputStream))
            {
                data = reader.ReadToEnd();
            }

            context.Session.Add("ExcelData", data);
        }
    }
    public bool IsReusable {
        get {
            return true;
        }
    }

}