project type (.csproj) is not supported by this version of the application when running .sln with VS2010 Command tool

project type (.csproj) is not supported by this version of the application when running .sln with VS2010 Command tool 

 http://social.microsoft.com/Forums/en-US/Offtopic/thread/d80dbf79-5755-4bc7-95b6-202907cc2b47/

I inherited a large .sln file created with a previous version of Visual Studio (VS2005, VS2003). I'm now using Visual Studio 2010. Here's what's installed:
Microsoft Visual Studio 2010
Version 10.0.30319.1 RTMRel
Microsoft .NET Framework
Version 4.0.30319 RTMRel

Installed Version: Ultimate

Microsoft Office Developer Tools   01019-532-2002102-70517
Microsoft Visual Basic 2010   01019-532-2002102-70517
Microsoft Visual C++ 2010   01019-532-2002102-70517
Microsoft Visual Studio 2010 Architecture and Modeling Tools   01019-532-2002102-70517
Microsoft Visual Studio 2010 Code Analysis Spell Checker   01019-532-2002102-70517
Microsoft Visual Studio 2010 Team Explorer   01019-532-2002102-70517
Microsoft Visual Web Developer 2010   01019-532-2002102-70517
Crystal Reports Templates for Microsoft Visual Studio 2010  
Microsoft Visual Studio 2010 SharePoint Developer Tools   10.0.30319
When I open a command prompt to use devenv to build the solution, I get a lot of error messages like the following. How can I fix these? I've opened the .sln file inside VS2010, but I don't know what else to do.
'C:\home\autostart\src-Trunk\utility\UpdateManager\UpdateManager\UpdateManager.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.
'C:\home\autostart\src-Trunk\utility\UpdateManager\RegisterUpdate\RegisterUpdate.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.
'C:\home\autostart\src-Trunk\utility\UpdateManager\ManifestGenerator\ManifestGenerator.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.

If you want to open a project (.csproj) file that was created in a previous version of Visual Studio, then you need to run Visual Studio (devenv.exe) from the Visual Studio Command Prompt after providing options to clear all SkipLoading tags.

So you can go to Start Menu -> All Programs ->  Microsoft Visual Studio 2010 -> Visual Studio Tools -> Visual Studio Command Prompt. Once you are in the command prompt, enter:
 Devenv.exe /ResetSkipPkgs

This will open Visual Studio 2010. Then try to open your solution or project from the previous version from the File menu, and it will launch the conversion wizard to convert it to Visual Studio 2010.

 

WCF Application

AutocompleExtender Getting the id and Dynamically set the AutoCompleteExtender ContextKey

http://mscoder.wordpress.com/2010/03/14/dynamically-set-the-autocompleteextender-contextkey/

Here in this article I will be explaining How to set and use AutocompleteExtender’s ContextKey Dynamically to Load the data based on some condition. I am assuming that you know how to use AutoCompleteExtender Control of AJAX toolkit (Please refer this link for basic info).
Basically this post is helpful for the below given problem.
Senerio – Let’s assume there is a textbox where we implement autocompleteExtender to load Countries List, and there is one more textbox for state but in state textbox we want to load the state list based on country selected in first Textbox.
To overcome with the above problem we need to use ContextKey and need to change it dynamically.
Here is the example
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="MSCoderAutoCompleteKeyValuePair._Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!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></title>

    <script type="text/javascript" language="javascript">
        function SetCountryID(source, eventArgs) {
            $find('StateAutoComplete').set_contextKey(eventArgs.get_value());
        }        
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <table>
        <tr>
            <td>
                Country
            </td>
            <td>
                <cc1:AutoCompleteExtender ID="CountryAutoComplete" runat="server" TargetControlID="txtCountry"
                    EnableCaching="false" CompletionSetCount="20" MinimumPrefixLength="1" ServicePath="wsAutoCompleteService.asmx"
                    FirstRowSelected="true" ServiceMethod="GetCountriesList" OnClientItemSelected="SetCountryID" />
                <asp:TextBox ID="txtCountry" runat="server"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td>
                State
            </td>
            <td>
                <cc1:AutoCompleteExtender ID="StateAutoComplete" runat="server" TargetControlID="txtState"
                    EnableCaching="false" MinimumPrefixLength="1" ServicePath="wsAutoCompleteService.asmx"
                    FirstRowSelected="true" ServiceMethod="GetStatesList" />
                <asp:TextBox ID="txtState" runat="server"></asp:TextBox>
            </td>
        </tr>
    </table>
    </form>
</body>
</html>

Webservice to fetch the data from the Database
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Web.Services;

namespace MSCoderAutoCompleteKeyValuePair
{
    /// <summary>
    /// Summary description for AutoCompleteService
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX 
    [System.Web.Script.Services.ScriptService]
    public class AutoCompleteService : System.Web.Services.WebService
    {
        /// <summary>
        /// Method to get Countries List
        /// </summary>
        /// <param name="prefixText"></param>
        /// <param name="count"></param>
        /// <returns>String array which contains Countries name</returns>
        [WebMethod(true)]
        public string[] GetCountriesList(string prefixText, int count)
        {
            if (count == 0)
                count = 10;

            List<String> result = new List<string>();
            using (SqlConnection connection = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
            {
                connection.Open();
                SqlCommand cmd = new SqlCommand(string.Format("Select Top {0} ID,Name from CountryTable Where Name Like '{1}%'",count, prefixText), connection);
                SqlDataReader reader = cmd.ExecuteReader();
                if (reader != null)
                {
                    while (reader.Read())
                    {
                        result.Add(AutoCompleteItem(Convert.ToString(reader["Name"]), Convert.ToString(reader["ID"])));
                    }
                }            
            }
            return result.ToArray();
        }

        /// <summary>
        /// Method to get States List
        /// </summary>
        /// <param name="prefixText"></param>
        /// <param name="count"></param>
        /// <param name="contextKey"></param>
        /// <returns>String array which contains States name</returns>
        [WebMethod(true)]
        public string[] GetStatesList(string prefixText, int count,string contextKey)
        {
            List<String> result = new List<string>();
            using (SqlConnection connection = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
            {
                connection.Open();
                SqlCommand cmd = new SqlCommand(string.Format("Select Top {0} ID,Name from StateTable Where Name Like '{1}%' And CountryID={2}", count, prefixText, contextKey), connection);
                SqlDataReader reader = cmd.ExecuteReader();
                if (reader != null)
                {
                    while (reader.Read())
                    {
                        result.Add(AutoCompleteItem(Convert.ToString(reader["Name"]), Convert.ToString(reader["ID"])));
                    }
                }
            }
            return result.ToArray();
        }

        /// <summary>
        /// Method to get Formatted String value which can be used for KeyValue Pair for AutoCompleteExtender
        /// </summary>
        /// <param name="value"></param>
        /// <param name="id"></param>
        /// <returns>Returns string value which holds key and value in a specific format</returns>
        private string AutoCompleteItem(string value, string id)
        {
            return string.Format("{{\"First\":\"{0}\",\"Second\":\"{1}\"}}", value, id);
        }
    }
}

Code Behind file which contains nothing
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MSCoderAutoCompleteKeyValuePair
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
           
        }
    }
}
When we select India in Country textbox then in state textbox all the India’s states will get listed and when we select USA as a country then USA’s states will be listed.
image
image
SQL Script for the Database
Create Database [Database]
Go
USE [Database]
Go
CREATE TABLE CountryTable(
    [ID] int NOT NULL Primary key,
    [Name] varchar(50) NOT NULL
)
Go
CREATE TABLE StateTable(
    [ID] int NOT NULL Primary key,
    [CountryID] int NOT NULL,
    [Name] varchar(50) NOT NULL
)
Go
Insert Into CountryTable Values(1,'India')
Insert Into CountryTable Values(2,'USA')
Insert Into StateTable Values(1,1, 'Andhra Pradesh')
Insert Into StateTable Values(2,1, 'Arunachal Pradesh')
Insert Into StateTable Values(3,1, 'Assam')
Insert Into StateTable Values(4,1, 'Bihar')
Insert Into StateTable Values(5,1, 'Chhattisgarh')
Insert Into StateTable Values(6,1, 'Goa')
Insert Into StateTable Values(7,1, 'Gujarat')
Insert Into StateTable Values(8,1, 'Haryana')
Insert Into StateTable Values(9,1, 'Himachal Pradesh')
Insert Into StateTable Values(10,1, 'Jammu and Kashmir')
Insert Into StateTable Values(11,1, 'Jharkhand')
Insert Into StateTable Values(12,1, 'Karnataka')
Insert Into StateTable Values(13,1, 'Kerala')
Insert Into StateTable Values(14,1, 'Madhya Pradesh')
Insert Into StateTable Values(15,1, 'Maharashtra')
Insert Into StateTable Values(16,1, 'Manipur')
Insert Into StateTable Values(17,1, 'Meghalaya')
Insert Into StateTable Values(18,1, 'Mizoram')
Insert Into StateTable Values(19,1, 'Nagaland')
Insert Into StateTable Values(20,1, 'Orissa')
Insert Into StateTable Values(21,1, 'Punjab')
Insert Into StateTable Values(22,1, 'Rajasthan')
Insert Into StateTable Values(23,1, 'Sikkim')
Insert Into StateTable Values(24,1, 'Tamil Nadu')
Insert Into StateTable Values(25,1, 'Tripura')
Insert Into StateTable Values(26,1, 'Uttar Pradesh')
Insert Into StateTable Values(27,1, 'Uttarakhand')
Insert Into StateTable Values(28,1, 'West Bengal')
Insert Into StateTable Values(29,2, 'Alabama')
Insert Into StateTable Values(30,2, 'Alaska')
Insert Into StateTable Values(31,2, 'Arizona')
Insert Into StateTable Values(32,2, 'Arkansas')
Insert Into StateTable Values(33,2, 'California')
Insert Into StateTable Values(34,2, 'Colorado')
Insert Into StateTable Values(35,2, 'Connecticut')
Insert Into StateTable Values(36,2, 'Delaware')
Insert Into StateTable Values(37,2, 'Florida')
Insert Into StateTable Values(38,2, 'Georgia')
Insert Into StateTable Values(39,2, 'Hawaii')
Insert Into StateTable Values(40,2, 'Idaho')
Insert Into StateTable Values(41,2, 'Illinois')
Insert Into StateTable Values(42,2, 'Indiana')
Insert Into StateTable Values(43,2, 'Iowa')
Insert Into StateTable Values(44,2, 'Kansas')
Insert Into StateTable Values(45,2, 'Kentucky')
Insert Into StateTable Values(46,2, 'Louisiana')
Insert Into StateTable Values(47,2, 'Maine')
Insert Into StateTable Values(48,2, 'Maryland')
Insert Into StateTable Values(49,2, 'Massachusetts')
Insert Into StateTable Values(50,2, 'Michigan')
Insert Into StateTable Values(51,2, 'Minnesota')
Insert Into StateTable Values(52,2, 'Mississippi')
Insert Into StateTable Values(53,2, 'Missouri')
Insert Into StateTable Values(54,2, 'Montana')
Insert Into StateTable Values(55,2, 'Nebraska')
Insert Into StateTable Values(56,2, 'Nevada')
Insert Into StateTable Values(57,2, 'New Hampshire')
Insert Into StateTable Values(58,2, 'New Jersey')
Insert Into StateTable Values(59,2, 'New Mexico')
Insert Into StateTable Values(60,2, 'New York')
Insert Into StateTable Values(61,2, 'North Carolina')
Insert Into StateTable Values(62,2, 'North Dakota')
Insert Into StateTable Values(63,2, 'Ohio')
Insert Into StateTable Values(64,2, 'Oklahoma')
Insert Into StateTable Values(65,2, 'Oregon')
Insert Into StateTable Values(66,2, 'Pennsylvania')
Insert Into StateTable Values(67,2, 'Rhode Island')
Insert Into StateTable Values(68,2, 'South Carolina')
Insert Into StateTable Values(69,2, 'South Dakota')
Insert Into StateTable Values(70,2, 'Tennessee')
Insert Into StateTable Values(71,2, 'Texas')
Insert Into StateTable Values(72,2, 'Utah')
Insert Into StateTable Values(73,2, 'Vermont')
Insert Into StateTable Values(74,2, 'Virginia')
Insert Into StateTable Values(75,2, 'Washington')
Insert Into StateTable Values(76,2, 'West Virginia')
Insert Into StateTable Values(77,2, 'Wisconsin')
Insert Into StateTable Values(78,2, 'Wyo')