Steema Central

Posted: **Mon Sep 22, 2008 9:23 am**

Hello,

I need some help to use the AxtiveX object in my C# Website project. I doesn't seem to work. I can see the object when I run the project, but it loads with error, and it doesn't want to load the byte array accordingly?

This is my development environment:
OS: MS Windows XP Pro
Visual Studio 2005/2008
Teechart Version 7/8

Here is the code I use in my project:

Defualt.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">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>WebForm1</title>
<script language="VBScript">

Sub Window_Onload()

TChart1.Import.LoadFromURL("http://localhost/tee/GenGraph.aspx")

end sub
Sub TChart1_OnMouseMove(shftstate, x, y)
if Form1.TChart1.SeriesCount > 0 then
if x < Form1.TChart1.Axis.Right.Position and x > Form1.TChart1.Axis.Left.Position _
and y < Form1.TChart1.Axis.Bottom.Position and y > Form1.TChart1.Axis.Top.Position then
XVal = Round(Form1.TChart1.Series(0).XScreenToValue(x),2)
YVal = Round(Form1.TChart1.Series(0).YScreenToValue(y),2)
else
XVal ="none"
YVal ="none"
end if
Form1.TChart1.Repaint
end if
end sub
</script>
</head>
<body>
<form id="Form1" runat="server">
<div>
<OBJECT id="TChart1" style="Z-INDEX: 101; LEFT: 38px; WIDTH: 558px; POSITION: absolute; TOP: 179px; HEIGHT: 284px" type="application/x-oleobject" classid="clsid:FAB9B41C-87D6-474D-AB7E-F07D78F2422E" name="TChart1" VIEWASTEXT>
<PARAM NAME="Base64" VALUE="VFBGMAtUQ2hhcnRDaGFydAAETGVmdAIAA1RvcAIABVdpZHRoAy4CBkhlaWdodAMcARBHcmFkaWVu
dC5WaXNpYmxlCRJUaXRsZS5UZXh0LlN0cmluZ3MBBghUZWVDaGFydAAAAAAAAAACAAAAAP////8=">
</OBJECT>
</div>
</form>
</body>
</html>

GenGraph.aspx

using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
using TeeChart;
using System.IO;

public partial class GenGraph : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
TeeChart.TChartClass TChart1 = new TeeChart.TChartClass();

TChart1.AddSeries(TeeChart.ESeriesClass.scBar);
TChart1.Series(0).FillSampleValues(10);
TChart1.Header.Text.Add("events in .NET example");
TChart1.Header.Font.Size = 10;

Response.BinaryWrite((byte[])TChart1.Export.asNative.SaveToStream(true));

}
}

Help with this will be appreciated.

Regards,

Posted: **Mon Sep 22, 2008 11:21 am**

Hi JC,

Do the VBWebForm examples at C:\Program Files\Steema Software\TeeChart Pro v8 ActiveX Control\Examples\Visual Studio .NET work fine at your end? Which is the error message/s you get?

Thanks in advance.

Posted: **Tue Sep 23, 2008 6:02 am**

Hi,

Yes, the VBWebform works well. I have replaced the Export.asNative.SaveToSteam with .Export.asNative.SavetoFile...and now it works fine.

I think my path with the LoadfromURL was maybe the fault.

But thanks anyway for the quick response.

Regards,

Steema Central

ActiveX ASP.NET

ActiveX ASP.NET