Nevron Forum

Can't get demo working ...

https://www.nevron.com/Forum/Topic2652.aspx

By Peter Spinato - Thursday, September 24, 2009

Support,

Below are my .aspx and the .cs file - I run the demo app to draw an eclipse but the screen just shows a box with an x in it.  Any help is apprecaited,

-Peter

 

ASPX file

---------------------------------------------------------------------------------------------------------------------------

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TheView.aspx.cs" Inherits="TheView" %>

<%@ Register assembly="Nevron.Diagram.WebForm, Version=9.7.23.12, Culture=neutral, PublicKeyToken=95bcc3d41b0512e9" namespace="Nevron.Diagram.WebForm" tagprefix="ndwc" %>

<!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">

<div>

<ndwc:NDrawingView ID="NDrawingView1" runat="server" Width="416px" Height="336px">

</ndwc:NDrawingView>

</div>

</form>

</body>

</html>

 

CS file

-----------------------------------------------------------------------------------------------------------------------------------

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 System.Drawing;

using Nevron.GraphicsCore;

using Nevron.Diagram;

using Nevron.Diagram.WebForm;

using Nevron.Diagram.Shapes;

public partial class TheView : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (NDrawingView1.RequiresInitialization)

{

NDrawingView1.ViewLayout = CanvasLayout.Fit;

NDrawingView1.DocumentPadding = new Nevron.Diagram.NMargins(10);

NDrawingView1.Document.HistoryService.Stop();

NDrawingView1.Document.BeginInit();

NDrawingView1.Document.Bounds = new NRectangleF(0, 0, 420, 320);

NStandardFrameStyle fs = (NDrawingView1.Document.BackgroundStyle.FrameStyle as NStandardFrameStyle);

fs.InnerBorderWidth = new NLength(0);

NBasicShapesFactory factory = new NBasicShapesFactory(NDrawingView1.Document);

NEllipseShape ellipse = factory.CreateShape((int)BasicShapes.Ellipse) as NEllipseShape;

ellipse.Name = "myEllipse";

ellipse.Width = 250f;

ellipse.Height = 250f;

ellipse.Center = new NPointF(200, 200);

ellipse.Style.FillStyle = new NGradientFillStyle(GradientStyle.Horizontal, GradientVariant.Variant1, Color.Navy, Color.White);

NDrawingView1.Document.ActiveLayer.AddChild(ellipse);

NDrawingView1.Document.EndInit();

}

}

}

 

 
By Blagovest Milanov 1 - Friday, September 25, 2009

Hi Peter,

It may be related to the axd setting on the servers - you can easily check if this is the case by modifying the image acquisition mode of the control:

1. In the code change the image acquisition:

NDrawingView1.ImageAcquisitionMode = Nevron.UI.WebForm.Controls.ClientSideImageAcquisitionMode.TempFile;

2. Create a directory called NevronTemp in the root folder of your website - for example (C:\Temp\WebSite2\NevronTemp if the web site is located at C:\Temp\WebSite2\).

3. Give this folder read, write, modify permissions to the ASP.NET account.

Hope this helps - let me know if the problem persists.

Best regards,
Bob