Mobile Surface (3D without glasses)

Microsoft is in the phase of presenting a new technology to the market that will change the balance of power and mobile distribution, I believe that all high tech mobile owners will throw there mobiles and get ones with this new Microsoft technolog.

To see more check the following links

So know if you have this new mobile technology and have any flat surface, you will have your monitor (screen), mouse keyboard & even touch screen.

Sixth sense technology is coming (microsoft demos surface )

If you want more fun and if you are not still convince that this will work see the simple version of what Microsoft is working on,

The windows phone

Net Fundamentals

Net Fundamentals

View more presentations from Ali Taki.

Asp Net Advance Topics

Asp Net Advance Topics

View more presentations from Ali Taki.

WD My Book Studio (2TB External Hard Drive)

I have a large movie library and I will not start talking about the series too, currently about 400GB movies, I didn't see all of them but I believe I will have sometime in my vacation or on a Sunday/Friday night, so at that moment I will love to select something from my library and see it with the family. The problem was to store all that.

I selected a 2TB hard disk from my near computer equipment office (Speed for Computers) and the most things that I was focusing on were size and speed, with the WD My Book Studio I got both and more.

The size was 2TB, and against its price it was very cool, the speed was impressive, I have a local drive that’s 1TB and WD 2TB is faster (yes its an old 1TB drive). I have USB 2.0 connection that’s good and two FireWire 800 too (now we are talking).

It also includes in the same package a FireWire converter from 800 to 400 adapter cable for older systems with a FW 400 port.

It comes with backup software that will backup all your computer data with very simple and useful interface. So backup of your important family photos or important development software (I'm a coder) is one click a way.

The ink display on the devise is very helpful, with the free space left and a bar to show it, its very easy to know were are you in terms of space. I have a Windows 7 PC but the drive supports MAC too. It also have a very cool flashing let to tell you the state of the device (by the way it's also GreenPower Technology).

The dives design is cool too, a silver cover that looks very cool on my desktop near my monitors, it needs an external power devise to work too.

The WD SmartWare software can be updated (really the first thing I did) , it promises to increase the performance x5, I really did this first so I don’t know the old performance but two computers and two laptops had a very quick detect for the device and were all communicating smoothing.

The software is located on a separate write-protected partition on the drive that appears like a CD ROM when the drive is connected. (you can leave it and use it or you can remove/hide it).

The only sound you hear is a small quiet hesh hash when it is being used. When the drive automatically shuts down (Is not actually in use), there is no sound at all.

Its simply the most attractive device I used from a long time.

A new update to the Light Beta Sudoku

You can see the live version here Light Beta Sudoku

I made some small enhancement to the site, First completed the Auto Generation of New Sudoku Puzzles, and filled the database for the next two years, so Daily Sudoku is now active with the Complexity setting.

Yes you can select the level to play and then you can select from Random game or from the Daily Sudoku.

I updated the Action menu so it will display checkboxes with the help of symbol fonts, it helped to make the menu lighter and faster to load.

I updated the Sudoku Possibilities so that it will work with other browsers like Google Chrome & etc. made some small color adjustments too.

With a day or two the site will be fully functional, and I will try to add Google AdSense or/and Amazon recommendations too.

Working with this project was fun and I hope I can close it by the end of this week.

Generating New Sudoku Puzzles

You can see the live version here Light Beta Sudoku
I searched a lot for algorithms and methods to create new Sudoku Puzzles for my site (Sudoku.lightbeta.com), and the most Algorithms that I as interested is was GA (Genetic Algorithms), so I started playing with it. My results were not so impressive but will do the job needed.

The idea of GA is simply  Generate a several random solution

1. Calculate each solution fitness  (or how much percentage of the solution is correct)
2.  Generate New solution from mixing two good solutions (Reproduction)
3. Make very small changes randomly to this new solution (Mutation)
4. Do it again and again until you get a 100% correct solution

I need to have multiple new puzzles so whenever I complete I save it to a DB and start over.

Currently I’m creating new Sudoku’s every 3-5min, that’s slow but it will cover my Daily Sudoku site need.

I focusing on showing the fitness function because it’s the heart of the application.

Public Function CalculateFitness() As Single

        'max error are 81 so to norimilize devide on 81

        Dim CheckItems As New Hashtable

        Dim Errors As Integer = 0

        For Row = 0 To 8

            CheckItems.Clear()

            For Col = 0 To 8

                If Not CheckItems.ContainsKey(Me.Items(Row, Col)) Then CheckItems.Add(Me.Items(Row, Col), 0)

            Next

            Errors += (9 - CheckItems.Count)

        Next

        For Col = 0 To 8

            CheckItems.Clear()

            For row = 0 To 8

                If Not CheckItems.ContainsKey(Me.Items(row, Col)) Then CheckItems.Add(Me.Items(row, Col), 0)

            Next

            Errors += (9 - CheckItems.Count)

        Next

        For GroupX = 0 To 8 Step 3

            For GroupY = 0 To 8 Step 3

                CheckItems.Clear()

                For row = 0 To 2

                    For Col = 0 To 2

                        If Not CheckItems.ContainsKey(Me.Items(row, Col)) Then CheckItems.Add(Me.Items(row, Col), 0)

                    Next

                Next

                Errors += (9 - CheckItems.Count)

            Next

        Next

        LastFitness = 1 - (Errors / 81)

        Return LastFitness

    End Function

Simply I’m doing it in three phases; Checking the number of error in row, Columns and squares.

I’m assuming that for each group the numbers must be unique so that the group will contain the numbers from 1 to 9

So I’m adding them to a hash table with the number as the key, so if the number of items in the hash table is less that 9 it mean there was some duplicates that will give errors to the Sudoku solution.

If this function can be enhanced in performance it will be a huge update, so the solution will give more results with less time.

HTC Desire

I bought an HTC Desire and its grate and awesome in all ways.


Very simple to use, beautiful colors, after making the basic setting it was like this is the only mobile I will use for life, the Google Android 2.1 is very stable, there performance is great, I had several other mobiles like the Imate PockePC and the Imate JasJar, some Nokia ones too like the N95 and some classic modules from the stone ages, in last period I was using BlackBerry Curve 8700, so people if you are out there and didn’t use the new age mobiles you are missing a real part of life,

Selecting what to go was a challenge, IPhone, Windows ,Android & Nokia & etc, my heart when to the HTC Desire, its design, large screen resolution, containing all the basic, and the most important thing is to test some new ground and that was the Android OS (Google mobiles). for more details you can check the HTC site here

Google made a super powerful mobile OS, the Google market place with all that free stuff, whatever you can imagine, you can simply find with only minutes.

May be some day I will even develop a small application for it, only for fun.

Virtual Business Card

This isn’t new stuff, but I don’t see it a lot on the web, it’s a very cool feature for Microsoft MCP’s

You can add it to your resume links to display your experience with Microsoft technologies and its very simply to set up. So if you are a Microsoft Certified Professional pay it a visit, it’s cool. (you can access it from your Microsoft MCP side menu).

You can check mine to see how one of the setting can be like (here), it contain a lot of templates and designs.

Free Online Sudoku

I like Sudoku and love programming, so after some years of playing online games i decided to build my own, it’s still underdevelopment but its promising too. so if you like you can check it out here. http://www.sudoku.lightbeta.com/Sudoku

I used Net4.0, and a lot of generic collections, some java and JQuery too.

The solving engine took more time than expected but it can solve very hard puzzles now, I’m planning to add some more effort to have a user database and generate automatic Sudoku’s daily, have fun.

Making your input forms more intelligent.

Online sample: Live Demo

There is a large number of applications that are related to entering data that is on paper, these applications always enter the documents from a scanner or import them from a data store and the data entry officer will start filling the forms, some of the forms even have auto OCR for certain areas of the document. Today I want to work on enabling some advance technics that is related to this subject, no OCR detail here (mostly OCR work well only with Western languages like English).

In my case I want my data entry officer to have an easy time entering his information to the form after getting a scan image from the scanner. I don’t want him to have the paper in hand; I don’t want him to switch from one window to another to copy parts of the document as Invoice Number, Owner Name & etc.

My Goal:

• I want the data entry person to see the image side by side with the fields he is entering and the application will focus automatically on the regions that he is filling, as for example, if he is entering information about the Invoice Number, I want the application to zoom on that part of the document, when the data entry person goes to the Owner Name, I need the application to focus and zoom on the Owner Name.

• I need it to work on asp.net pages (web application)
• I want to make it easy to be used on other applications (as a component for example)
• It must be free, no payments here or there.

Tools:

• VS2010/VS2008 for development with C#/VB
• A very cool control called Seadragon

Let’s start, making this a short document is hard so I will need to reference some other blogs that will help me on this subject.

Visit my first blog about this control (Using the Seadragon control with an Image library) it will help us make the control work with an image of our desire.

Open a web site project and download the seadragon-min.js, its available on the site.

Add the following to your page header:

<script type="text/javascript" src="Scripts/seadragon-min.js"></script>

<script type="text/javascript">

var viewer = null;

var Loc_x = .5;

var Loc_y = .5;

var loc_zoom = 2; 

function init() {

viewer = new Seadragon.Viewer("container");

viewer.openDzi("dzc_output.xml");

}

Seadragon.Utils.addEvent(window, "load", init);

function SetFocus(x,y,z) {

Loc_x = x;

Loc_y = y;

loc_zoom = z; 

FocusOn();

}

function FocusOn(event) {

Seadragon.Utils.cancelEvent(event); // don't process link

if (!viewer.isOpen()) { return; }

viewer.viewport.panTo(new Seadragon.Point(Loc_x, Loc_y));

viewer.viewport.zoomTo(loc_zoom);

viewer.viewport.ensureVisible();

}

Seadragon.Utils.addEvent(window, "load", init);

</script>              

Simply we are adding 3 variables, Loc_x & Loc_y for the location, and loc_zoom for the zoom factor.

Let’s add four text boxes simulating our data enter form side by side with the Seadragon:

<asp:ScriptManager ID="ScriptManager1" runat="server"/>        

<table>

<tr><td class="style2" rowspan="4"><div id="container"></div></td>

<td>

Inv. Number: <asp:TextBox ID="TextBox1" runat="server" />

</td></tr>

<tr><td> 

Inv. Owner Name:<asp:TextBox ID="TextBox2" runat="server"/>

</td></tr>

<tr><td>

Inv Date:<asp:TextBox ID="TextBox3" runat="server"/>

</td></tr>

<tr><td>

rest to home <asp:TextBox ID="TextBox4" runat="server"/>

</td></tr>

</table>

And in our page load event

If (Not IsPostBack) Then

TextBox1.Attributes.Add("Onfocus", "SetFocus(.7,.2,8);")

TextBox2.Attributes.Add("Onfocus", "SetFocus(.4,.5,2);")

TextBox3.Attributes.Add("Onfocus", "SetFocus(.3,.9,2);")

TextBox4.Attributes.Add("Onfocus", "SetFocus(.5,.5,1);")

End If

Each control is hocked with the onfocus event and specifying the location and the zoom factor needed.

In general the width of the document is always 1, the height depends on other factors. If you like to read more about the coordination system go here.

I prefer using zoom factor as 1,2,4,8,16,32 & etc

We can simply warp this in a control containing the viewer and some function to hock the control from the data entry fields.

The Identification  of the active points in the document are always related to the document type (so some database can be used here to focus on needed parts depending on the document type)

Code Formatter

here is a very useful link to format your code for publishing

http://www.manoli.net/csharpformat/format.aspx

Using the Seadragon control with an Image library

Seadragon is one great control in the Ajax Control Tool kit, if you didn’t see it yet, check it out here, the idea is that it gives you a very cool image viewer to you page with DeepZoom Technology. So high resolution images is not a problem anymore.

Alone the control does everything you need, but it forces you to have your image pre-rendered (with Deep Zoom Composer or any other tool) . So what if we need to make this control work with our image library without creating all Seadragon images (without thinking about maintaining them after updates and moving them to your production nor even the extra size). It’s a small challenge.

1. So after looking at the problem my approach is as follow:
   
   Create an Http Handler to handle the requests from the Seadragon Control
   
   
1. For IIS6 register the jpg extension to be handled by our handler
2. Add the needed configurations to our Web.config
3. Create our handler
2. Create the needed Seadragon images on the fly. Providing the needed part only to the control.
   
   1. Finding the needed level and which part the control need
   2. Getting the high resolution image, making some zooming and slicing
   3. Returning the result to the control by the handler.
   
   

Simple, that’s it. We don’t need anything else.

Before going in the details, I only wanted to say that this is only the first phase. For future I will try to make it work with PDF documents with some special zooming tricks. But this is not our problem so let’s go back.
For the first task (1.1) registering the jpg extension in IIS, that’s a simple task
Launch the Internet Services Manager tool, right click on Default Web Site, select Properties, go to Home Directory tab and press Configuration button. This will popup Application Configuration dialog. Click Add button and fill the Executable field with the path to the aspnet_isapi.dll file and fill .jpg in the Extension field. Leave the other fields as is, close the Application Configuration and Default Web Site Properties dialog boxes by pressing the OK button. (if you have IIS7 this step is not needed).

For the task (1.2) Add the needed configurations to our Web.config, add the following:
Add the following in the section of the web config

<httpHandlers>

<add verb="*" path="dzc_output_files/*.jpg" type="ImageHandler.HttpImageHandler,ImageHandler"/>

</httpHandlers>

So now requests coming for the control are captured by our handler, so let’s create it.
For the first task (1.c), Create our handler
using System;

using System;

using System.Web;

using System.IO;

using System.Drawing;

using System.Drawing.Imaging;

using System.Text.RegularExpressions;

using Injazat.DeepZoom;

namespace ImageHandler

{

public class HttpImageHandler : IHttpHandler

{

public void ProcessRequest(System.Web.HttpContext context)

{

DynamicDeepZoomImageGenerator DDZIG = new DynamicDeepZoomImageGenerator();

if (context.Request.PhysicalPath.IndexOf(DDZIG.Identifier) < 0)

{

//this is not for the deep zoom images 

context.Response.Clear();

context.Response.ContentType = getContentType(context.Request.PhysicalPath);

context.Response.WriteFile(context.Request.PhysicalPath);

context.Response.End();

}

else

{

context.Response.Clear();

context.Response.ContentType = getContentType(context.Request.PhysicalPath);

byte[] buffer = DDZIG.GeneratorImage(context.Request.PhysicalPath);

context.Response.OutputStream.Write(buffer, 0, buffer.Length);

context.Response.End();

}

}

public bool IsReusable

{

get

{

return false;

}

}

string getContentType(String path)

{

switch (Path.GetExtension(path))

{

case ".bmp": return "Image/bmp";

case ".gif": return "Image/gif";

case ".jpg": return "Image/jpeg";

case ".png": return "Image/png";

default: break;

}

return "";

}

}}

So we need now to create the needed Seadragon images on the fly
I created one class to handle that.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using System.Drawing;

using System.Drawing.Imaging;

using System.Text.RegularExpressions;

namespace Injazat.DeepZoom

{

public class DynamicDeepZoomImageGenerator

{

int Size = 250;

public string Identifier = "dzc_output_files";

public DynamicDeepZoomImageGenerator()

{

}

public byte[] GeneratorImage(String PhysicalPath)

{

// 1. find the orignal size of the doc

String path = @"C:\inetpub\wwwroot\testthumb\SampleDoc.jpg";

Bitmap imgIn = new Bitmap(path);

Point OriginalSize = new Point(imgIn.Width, imgIn.Height);

// 1.5 find number of zoom level avaliable

int ZoomMax = 0;

int X = OriginalSize.Y;

do { X /= 2; ZoomMax++; } while (X > 0);

ZoomMax = (int)Math.Ceiling(Math.Log(Math.Max(imgIn.Width, imgIn.Height), 2));

// 2. get the zoom level and array location

int ZoomLevel = 0;

Point ArrayLocation = new Point(0, 0);

String Pattren = Identifier + @"\\(?<ZoomLevel>[0-9]{1,2})\\(?<XXX>[0-9]{1,2})_(?<YYY>[0-9]{1,2}).jpg";

// use 'x' modifier to ignore comments

Regex r = new Regex(Pattren);

// get the list of group numbers

int[] gnums = r.GetGroupNumbers();

// get first match

Match m = r.Match(PhysicalPath);

if (m.Success)

{

ZoomLevel = int.Parse(m.Groups["ZoomLevel"].Value);

ArrayLocation.X = int.Parse(m.Groups["XXX"].Value);

ArrayLocation.Y = int.Parse(m.Groups["YYY"].Value);

}

// 3. return the needed part depending on the req.

//find the scalling 

int Scale;

if (ZoomMax > ZoomLevel)

{ Scale = (int)Math.Pow(2, (ZoomMax - ZoomLevel)); }

else { Scale = 1; }

// resize the image to the scale

Bitmap imgOut = ResizedImage(imgIn, Scale);

// get only the needed portion of the image

imgOut = GetRegionImage(imgOut, ArrayLocation, Size);

return Image2BateArray(imgOut);

}

byte[] Image2BateArray(Bitmap imgIn)

{

System.IO.MemoryStream outStream = new System.IO.MemoryStream();

imgIn.Save(outStream, ImageFormat.Jpeg);

return outStream.ToArray();

}

public Bitmap ResizedImage(Bitmap imgIn, int Scale)

{

if (Scale == 0) Scale = 1;

int NewWidth = (int)(1.0F * imgIn.Width / Scale);

int NewHeight = (int)(1.0F * imgIn.Height / Scale);

if (NewWidth == 0) NewWidth = 1;

if (NewHeight == 0) NewHeight = 1;

Size NewSize = new System.Drawing.Size(NewWidth, NewHeight);

Bitmap imgOut = new Bitmap(imgIn, NewSize);

return imgOut;

}

Bitmap GetRegionImage(Bitmap imgIn, Point ArrayLocation, int RegionSize)

{

Point TopLeft = new Point(ArrayLocation.X * RegionSize, ArrayLocation.Y * RegionSize);

Size NewSize = new Size(RegionSize, RegionSize);

if ((TopLeft.X + RegionSize) > imgIn.Width) NewSize.Width = imgIn.Width - TopLeft.X;

if ((TopLeft.Y + RegionSize) > imgIn.Height) NewSize.Height = imgIn.Height - TopLeft.Y;

Rectangle SourceRegion = new Rectangle(TopLeft, NewSize);

Bitmap imgOut = new Bitmap(RegionSize, RegionSize);

Graphics g = Graphics.FromImage(imgOut);

g.Clear(Color.White);

g.DrawImage(imgIn, new Rectangle(0, 0, NewSize.Width, NewSize.Height), SourceRegion, GraphicsUnit.Pixel);

g.Dispose();

return imgOut;

}

void DrawOnImage(ref Bitmap imgIn, String Text)

{

Graphics g = Graphics.FromImage(imgIn);

Font Fo = new Font("Arial", 12);

Rectangle Clip = new Rectangle(0, 0, imgIn.Width, imgIn.Height);

g.DrawString(Text, Fo, Brushes.Blue, Clip);

g.DrawEllipse(Pens.Red, Clip);

Fo.Dispose();

g.Dispose();

}

ImageFormat getImageFormat(String path)

{

switch (Path.GetExtension(path))

{

case ".bmp": return ImageFormat.Bmp;

case ".gif": return ImageFormat.Gif;

case ".jpg": return ImageFormat.Jpeg;

case ".png": return ImageFormat.Png;

default: break;

}

return ImageFormat.Jpeg;

}

string getContentType(String path)

{

switch (Path.GetExtension(path))

{

case ".bmp": return "Image/bmp";

case ".gif": return "Image/gif";

case ".jpg": return "Image/jpeg";

case ".png": return "Image/png";

default: break;

}

return "";

}

}

}

So finalizing our work
Create an xml file named “dzc_output.xml”, that will contain:

<?xml version="1.0" encoding="utf-8"?>

<Image TileSize="256" Overlap="0" Format="jpg" ServerFormat="Default" xmlns="http://schemas.microsoft.com/deepzoom/2009">

<Size Width="754" Height="948" /></Image>

Add an web site with a default.aspx page and include the following:

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<cc1:Seadragon ID="Seadragon1" runat="server" SourceUrl="~/dzc_output.xml" 

BorderColor="#660033" BorderStyle="Double" BorderWidth="4px" 

Height="240px" AutoHideControls="False" MaxZoomPixelRatio="10" Width="200px">

</cc1:Seadragon>

In my project I added the handler and the DynamicDeepZoomImageGenerator class to a separate project and referenced it.
That’s it.
You can see from the code that the image loaded is one image , in my next post I will add the needed code not only to change the image, but to extract on from a PDF and display it, and focus on some important locations too.  (It depends on the time :) )


Related Links:

• AJAX Toolkit
• Seadragon control by visiting the Microsoft Live Labs website.

Using Google Translation service from Net code

This has been out there for a long time, anyhow I found it know and I think it will be very cool to have our application translate on the fly whatever text we need to any language we desire.

If you think you don’t need translation or that its not so good (need human translation help) you are not so right.

For example you can translate names, and subjects from one language to another on the fly, belive me it will help a lot if you are working with international appcliations

So let’s start, Google provides these links as reference to its translation service

http://code.google.com/apis/ajaxlanguage/documentation/

So after a quick review, we can consume it by calling the service as an HttpWebRequest, and get the result back.

So for example:

http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=Ahmed Khaled&langpair=en|Ar

the service will reply back with the following:

{"responseData": {"translatedText":"احمد خالد"}, "responseDetails": null, "responseStatus": 200}

Ok, I will give a simple VB example here (to warp the result back):

Public Shared Function Translate(

ByVal Text As String, ByVal FromLanguage As String

, ByVal ToLanguage As String) As String

'Create the HttpWebRequest object

Dim URL As String = String.Format(GoogleServiceURL, Text, FromLanguage, ToLanguage)

Dim req As HttpWebRequest = WebRequest.Create(URL)

'Set the timeout to 2 second (or 1,000 milliseconds)

req.Timeout = 2000

''Create the proxy class instance if needed

'Dim prxy As New WebProxy("http://xxx.xxx.xxx.xxx:xxxx")

''Specify that the HttpWebRequest should use the proxy server

'req.Proxy = prxy

Try

'Get the data as an HttpWebResponse object

Dim resp As HttpWebResponse = req.GetResponse()

'Convert the data into a string (assumes that you are requesting text)

Dim sr As New StreamReader(resp.GetResponseStream())

Dim results As String = sr.ReadToEnd()

sr.Close()

Dim GRD As New GoogleResponseData(results)

' ... work with results ...

Return GRD.TranslatedText

Catch wex As WebException

Return "Error in Translation: " + wex.Message

'Something went wrong in the HTTP request!

End Try

End Function

The GoogleResponseData is only a simple class that will separate the returning string to some object you can use,

Private Class GoogleResponseData

Private _TranslatedText As String

Private _ResponseDetails As String

Private _ResponseStatus As String

Public ReadOnly Property TranslatedText() As String

Get

Return _TranslatedText

End Get

End Property

Public ReadOnly Property ResponseDetails() As String

Get

Return _ResponseDetails

End Get

End Property

Public ReadOnly Property ResponseStatus() As String

Get

Return _ResponseStatus

End Get

End Property

Public Sub New(ByVal Result As String)

'Result format

'{"responseData": {"translatedText":"Hello"}, "responseDetails": null, "responseStatus": 200}

Result = Result.Replace("""", "")

Dim rx As New Regex("{responseData: {translatedText:(?.*)}, responseDetails: (?.*), responseStatus: (?.*)}", RegexOptions.Singleline)

Dim mc As MatchCollection = rx.Matches(Result)

If mc.Count = 1 Then

_TranslatedText = mc(0).Groups(1).Value

_ResponseDetails = mc(0).Groups(2).Value

_ResponseStatus = mc(0).Groups(3).Value

End If

End Sub

End Class

I love google services.. J

Enabling SQL CLR

to enable the CLR for any database of SQL 2005
run the following in new query

sp_configure 'clr enabled', 1
GO
RECONFIGURE
GO

Reference:
http://msdn2.microsoft.com/en-us/library/ms254506(VS.80).aspx

SQL2005 caching

1. run SQL statement below on the database
ALTER DATABASE dbName
SET ENABLE_BROKER

2. use one of the following:
On a page:
On a data source control:
on the page get the data that you want and when its updated the page or data source will be updated

3. GRANT SUBSCRIBE QUERY NOTIFICATIONS TO username
4. GRANT SEND ON SERVICE::SqlQueryNotificationService TO username
anyhow there is a lot restrictions on the use of notification that will let you in the end to leave it.

Web config access denied

A Common developer problem

I have multiple local web servers , (developing, testing and production servers) when I copy my asp.net application between these servers I get this common error, and the IDE says cant start debugging and so on , so my work around is as follow:

• Remove your files and folders from your application directory (normally under C:\Inetpub\wwwroot/ExampleApp) to another folder
• Delete the folder and recreate it with IIS
• Tasks-new virtual directory- entry alias- make a folder, etc
• Then copy and past (not cut and past) the content to the new directory

This normally is a work around but I don’t think it’s the right solution
I think its something about permissions

Export Local Reports to Excel/PDF with one click

Local report are great but without an export function so this is one of my approaches to solve this issue.

ReportName : you give the name of the report and its reference path
ReportType : is an enum that is define after the subroutine (Excel/PDF)
DS : is the data set that contain all the information to link with the data
DSName: is the name of the data set so the binding will work

Private Sub ExportReport(ByVal ReportName As String, ByVal ReportType As ReportExportTypes, ByVal DS As DataSet, ByVal DSName As String)

'create report

Dim V As New ReportViewer

V.ProcessingMode = ProcessingMode.Local

V.LocalReport.ReportPath = Server.MapPath(ReportName)

For Each t As DataTable In DS.Tables

V.LocalReport.DataSources.Add(New ReportDataSource(DSName + "_" + t.TableName, t))

Next

' export report

Dim warnings As Warning() = Nothing

Dim streamids As String() = Nothing

Dim mimeType As String = Nothing

Dim encoding As String = Nothing

Dim extension As String = Nothing

Dim bytes As Byte()

bytes = V.LocalReport.Render(ReportType.ToString, Nothing, mimeType, encoding, extension, streamids, warnings)

'start exporting

Response.ClearContent()

Response.ClearHeaders()

Response.Buffer = True

Select Case ReportType

Case ReportExportTypes.Excel

Response.ContentType = "application/vnd.ms-excel"

Case ReportExportTypes.PDF

Response.ContentType = "application/pdf"

End Select

Dim oStream As New IO.MemoryStream(bytes)

Response.BinaryWrite(oStream.ToArray())

Response.Flush()

Response.Close()

Response.End()

'cleaning up

oStream.Dispose()

V.Dispose()

End Sub

Public Enum ReportExportTypes

PDF

Excel

End Enum

URL Path Parts

Example of URL Path Parts
Sample URL:
http://www.contoso.com/catalog/shownew.htm?date=today

URL Parts
AbsoluteUri: http://www.contoso.com/catalog/shownew.htm?date=today
Host: www.contoso.com
Authority: www.contoso.com:80
PathAndQuery: /catalog/shownew.htm?date=today
AbsolutePath: /catalog/shownew.htm
Query: ?date=today
Port: 80