CRM Dynamics 2011 - Dynamic Entity using Service Data Context

Refer the blog, how to create CRM Entites and Service Data Context http://makdns.blogspot.com/2012/11/crmsvcutilexe-crm-dynamics-2011-code.html

Add the CRM.Entities.cs file to your project.

Insert, Update, Delete, View and Select Entities list using c#.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ServiceModel.Description;
using Microsoft.Xrm.Sdk.Client;
using System.Net;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using CRM.Entities;

namespace ContactDataEntry
{
    public partial class default1 : System.Web.UI.Page
    {
        Uri OrganizationUri = new Uri("http://<Server_Name>/<Organization_Name>/XRMServices/2011/Organization.svc");
        Uri HomeRealmUri = null;
        String eid = "";
        protected void Page_Load(object sender, EventArgs e)
        {
            ViewAll();
            panDetails.Visible = false;
            if (Request.QueryString["id"] != null && Request.QueryString["id"].Length > 1)
            {
                eid = Request.QueryString["id"];
            }
            if (!IsPostBack)
            {
                BindList(ddlSList, StateList);
                BindList(ddlJList, JuList);
                if (eid.Length > 0)
                {
                    panDetails.Visible = true;
                    CreateNew.Visible = false;
                    View();
                }
            }
        }

        private void BindList(DropDownList ddl, Object obj)
        {
            ddl.DataSource = obj;
            ddl.DataTextField = "Text";
            ddl.DataValueField = "Value";
            ddl.DataBind();
        }

Assign List to Select

        internal  IEnumerable<SelectList> StateList
        {
            get
            {
                using (XrmServiceContext service = new XrmServiceContext(CrmService))
                {
                    IEnumerable<SelectList> bps = service.
                        g_stateSet.
                        Select(st => new SelectList
                        {
                            Text = st.g_name,
                            Value = st.g_stateId.Value.ToString()
                        }).ToList();
                    return bps;
                }
            }
        }

        internal IEnumerable<SelectList> JuList
        {
            get
            {
                using (XrmServiceContext service = new XrmServiceContext(CrmService))
                {
                    IEnumerable<SelectList> bps = service.
                        g_jurisdictionSet.
                        Where(js =>  js.g_jType == 2).
                        Select(st => new SelectList
                        {
                            Text = st.g_name,
                            Value = st.g_jId.Value.ToString()
                        }).ToList();
                    return bps;
                }
            }
        }

        protected void Insert_Click(object sender, EventArgs e)
        {
            panDetails.Visible = true;
            CreateNew.Visible = true;
            Delete.Visible = false;
            Update.Visible = false;
            ClearAll();
            //Response.Redirect("default.aspx?id=");
        }

        protected void CreateNew_Click(object sender, EventArgs e)
        {
            CreateUpdate("C");
        }

Insert or Update Record

        private void CreateUpdate(String type)
        {
            using (XrmServiceContext service = new XrmServiceContext(CrmService))
            {
                g_bpres bp = new g_bpres();
          
                bp.g_fName = txtFName.Text.ToString();
                bp.g_lname = txtLName.Text.ToString();
                bp.g_Address1 = txtAddress.Text.ToString();
                bp.g_City = txtCity.Text.ToString();
                bp.g_sname = (ddlSList.SelectedValue != "") ? new EntityReference("g_state", new Guid(ddlSList.SelectedValue)) : null;
                bp.g_MName = (ddlJList.SelectedValue != "") ? new EntityReference("g_jurisdiction", new Guid(ddlJList.SelectedValue)) : null;
                bp.g_ZipCode = txtZip.Text.ToString();
                if (type == "C")
                {
                    Guid newContactId = service.Create(bp);
                }
                else
                {
                    bp.g_bpId = new Guid(eid);
                    service.Update(bp);
                }

                ClearAll();
            }
            ViewAll();
        }

        private void ClearAll()
        {
            //This code will clear the textboxes after the contact is created.
            txtFName.Text = "";
            txtLName.Text = "";
            txtAddress.Text = "";
            txtCity.Text = "";
            ddlSList.SelectedValue = "";
            ddlJList.SelectedValue = "";
            txtZip.Text = "";
        }

View Record

        private void View()
        {
            using (XrmServiceContext service = new XrmServiceContext(CrmService))
            {
                g_bpres bp = new g_bpres();
                bp = service.g_bpresSet.Where(cbp => cbp.g_bpId.Value == new Guid(eid)).SingleOrDefault();
                txtFName.Text = bp.g_fName;
                txtLName.Text = bp.g_lname;
                txtZip.Text = bp.g_ZipCode;
                txtAddress.Text = bp.g_Address1;
                txtCity.Text = bp.g_City;
                ddlSList.SelectedValue = (bp.g_sname != null)?bp.g_sname.Id.ToString():"";
                ddlJList.SelectedValue = (bp.g_MName != null) ? bp.g_MName.Id.ToString() : "";
            }
        }

        protected void Delete_Click(object sender, EventArgs e)
        {
            using (XrmServiceContext service = new XrmServiceContext(CrmService))
            {
                service.Delete(g_bpres.EntityLogicalName, new Guid(eid));
            }
            panDetails.Visible = false;
            ViewAll();
        }

        protected void Update_Click(object sender, EventArgs e)
        {
            CreateUpdate("U");
        }

View All Records

        private void ViewAll()
        {
            View_All();
        }

        //retrieving all the attributes for an entity will affect the performance of your code.
        private void View_All()
        {
            using (XrmServiceContext service = new XrmServiceContext(CrmService))
            {
                List<g_bpres> bps = service.g_bpresSet.ToList();
                DisplayResults(bps);
            }
        }

        private void View_All_Condition()
        {
            using (XrmServiceContext service = new XrmServiceContext(CrmService))
            {
                List<g_bpres> bps = service.
                        g_bpresSet.
                        Where(bp => bp.g_ZipCode == "53590").
                        Select(bp => new g_bpres
                        {
                            g_bpId = bp.g_bpId.Value,
                            g_fName = bp.g_fName,
                            g_lname = bp.g_lname
                        }).
                        ToList();
                DisplayResults(bps);
            }
        }
       

Display Results

        private void DisplayResults(List<g_bpres> bps)
        {
            String strHtml = "<table rules='all' border='1'><tr><td></td><td>Name</td><td>State</td><td>M Name</td></tr>";
            foreach (var c in bps)
            {
                strHtml += "<tr><td><a href=default1.aspx?id=" + c.g_bpId + ">Edit</a></td><td>";
                strHtml += (c.g_fName != null && c.g_lname != null) ? (c.g_fName + "," + c.g_lname) : "";
                strHtml += "</td><td>";
                strHtml += c.g_sname!=null?c.g_sname.Name:"";
                strHtml += "</td><td>";
                strHtml += c.Attributes.Contains("g_mname")?(((EntityReference)c.Attributes["g_mname"]).Name.ToString()):"";
                strHtml += "</td></tr>";
            }
            litViewAll.Text = strHtml + "</table>";
        }

        internal class SelectList
        {
            public String Text { get; set; }
            public String Value { get; set; }
        }

        internal ClientCredentials Credentials
        {
            get
            {
                //Authenticate using credentials of the logged in user;      

Credentials

                ClientCredentials cntCredentials = new ClientCredentials();
                cntCredentials.UserName.UserName = "uid";
                cntCredentials.UserName.Password = "pwd";
                //cntCredentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;

                return cntCredentials;
            }
        }

        internal OrganizationServiceProxy CrmService
        {
            get
            {
                OrganizationServiceProxy serviceProxy = new OrganizationServiceProxy(OrganizationUri, HomeRealmUri, Credentials, null);
                serviceProxy.EnableProxyTypes();
                return serviceProxy;
            }
        }

    }
}

Error
Could not load file or assembly 'Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Reason - The reason for this error could be the machine does not have “Windows Identify Foundation Pack” installed, Download and install the Windows Identity Foundation Pack on the machine where you are trying to generate the wrappers.