Getting error name is not in scope onn the left side of equals.

LINQ To Xml and RSS Feeds Here's a quick sample using LINQ To XML to read one of EggHeadCafe's XML feeds System ; using System.Collections.Generic ; using System.Diagnostics ; using System.Linq ; using System.IO ; using System.Net ; using System.Text ; using System . Xml .Linq; namespace EggHeadCafe.RssClient { class Program { static void Main ( string [] args) { try { var stream = GetHttpWebRequest http: / / www.eggheadcafe.com / rss.xml" ); if ( String . IsNullOrEmpty (stream)) return ; var xml = XDocument . Parse (stream); var items = new response ! = null ) { response. Close (); } } return ret; } #endregion } #region Rss public class Rss { public string Summary = string . Empty ; public string Url = string url, string summary) { Description = description; Summary = summary; Url = url; } } #endregion } LINQ To Xml and RSS Feeds ( 370 Views ) View Robbe Morris's FAQs Create New Account keywords: RSS, LINQ, XDocument, Parse, Descendants, Element, HttpWebRequest, HttpWebResponse, GetResponse, GetResponseStream description: Here s a quick sample using LINQ To XML to read one of EggHeadCafe's XML feeds

can we shorten this OrderBy statement Hello, I have a class that has state and city string fields in it. I am sorting this class collection as follows: If Not String IsNullOrEmpty(sortBy) Then If sortBy.Contains( "desc" ) Then If sortBy.Contains for is a way to sort a list dynamically using LINQ. Hi Burak, I have demonstrated the simple way how you can acheive sorting of class objects. Below is the code / / Your Class public class Address { public string City { set ; get ;} public string State { set ; get ;} } / / Your code class public enum SortDirection { Ascending, Decending } public void Sort<TKey> ( ref

Return properties ? Hi i've got a class with 3 properties: Tytul, kod, skrot and now i want ArchiwumDataContext()) { var tytuly = Db.Tytuls.Select(t = > t); if (!string.IsNullOrEmpty(tytul)) tytuly = tytuly.Where(t = > t.TytulPublikatora = = tytul); if (!string.IsNullOrEmpty(kod)) tytuly = tytuly.Where(k = > k.Kod = = kod); if (!string IsNullOrEmpty(skrot)) tytuly = tytuly.Where(s = > s.Skrot = = skrot); return new skrot in my application, but i got an error " 'System.Linq.IQueryable<Tytul> ' does not contain a definition for 'tytul' and extension method 'tytul' accepting a first argument of type 'System.Linq.IQueryable<Tytul> ' could be found (are you missing a using work i got " Error 3 Cannot implicitly convert type 'System.Linq.IQueryable<string> ' to 'string " OK i change in properties from ArchiwumDataContext()) { var tytuly = Db.Tytuls.Select(t = > t); if (!string.IsNullOrEmpty(tytul)) tytuly = tytuly.Where(t = > t.TytulPublikatora = = tytul); if (!string.IsNullOrEmpty(kod)) tytuly = tytuly.Where(k = > k.Kod = = kod); if (!string IsNullOrEmpty(skrot)) tytuly = tytuly.Where(s = > s.Skrot = = skrot); WynikZnajdzDokument obj

Dynamically Composing Expression Predicates Suppose you want to write a LINQ to SQL or Entity Framework query that implements a keyword simplify this task. This is the role of our PredicateBuilder class. Using PredicateBuilder Here's how to solve the preceding example with PredicateBuilder is with LINQPad . LINQPad lets you instantly test LINQ queries against a database or local collection and has direct Code Here's the complete source: using System; using System.Linq; using System.Linq.Expressions; using System.Collections.Generic; public static class PredicateBuilder { public static Expression<Func<T, bool> > True<T> () { return also shipped as part of LINQKit , a productivity kit for LINQ to SQL and Entity Framework. If you're using LINQ to SQL, you can use the PredicateBuilder source code on query. By calling AsExpandable, you activate LINQKit's expression visitor class which substitutes invocation expressions with simpler constructs that Entity Framework to your library. Here's a simple example: public partial class Product { public static Expression<Func<Product, bool> > IsSelling() { return p

Speed up linq query ? Hi may U try help me to optimize this 13, 3), Rok = z.P110, Numer = p112.P112 }; if (!string.IsNullOrEmpty(kod)) result = result.Where(k = > k.KodDodatku = = kod); if (!string.IsNullOrEmpty(rok)) result = result.Where(r = > r.Rok = = rok); if (!string IsNullOrEmpty(numer)) result = result.Where(n = > n.Numer = = numer); return result There is no doubt that tehre are some drawbacks to Linq to Sql. One of them is that the Sql statement 3.5 has a solution for this problem. System.Data.Linq namespace includes a class named CompiledQuery which is responsible for caching the compiled version of a Linq to Sql query. This class has a static method called Compile which takes a Func limitations and how it really improves the speed of a Linq query. More details here http: / / aspguy.wordpress.com / 2008 / 08

I am tryihg to joi nmore than one field in linq listModel.AddRange(( from veh in dataContext.vwVehicle join model in ModelName, model.LanguageCulture } equals new { veh.Model, languageculture } where ( string .IsNullOrEmpty(year) | | year.IndexOf(veh.Year) > = 0) && ( string .IsNullOrEmpty(make) | | make.IndexOf(veh.Make) > = 0) && countryCode = = veh.countrycode orderby of equals. Note that order matters, You must place the class or table to be joined on the left side of the equals operator , and the joining class or table on the right side. In this case vwVehicle is the class to be joined, and Models is the joining class . The development team did some work to ensure that the veh.Model, languageculture } equals { model.ModelName, model.LanguageCulture } where ( string .IsNullOrEmpty(year) | | year.IndexOf(veh.Year) > = 0) && ( string .IsNullOrEmpty(make) | | make.IndexOf(veh.Make) > = 0) && countryCode = = veh.countrycode orderby

to write a method in the above coding in a class help me. . Hi you need to call the method like Test objTest = new Test(); objTest.GetText(TextBox1.Text); } In the Class File Test.cs using System; using System.Collections.Generic; using System.Linq; using System.Web; / / / <summary> / / / Summary description for Test / / / < / summary> public class Test { public Test() { / / / / TODO: Add constructor logic here / / } public string GetText( string tbText) { String OutputText = String.Empty; if (String.IsNullOrEmpty(tbText)) { OutputText = DateTime.Now.Date.ToString(); } else { OutputText = "" + tbText; } return new Test(); String OutputText = objTest.GetText(TextBox1.Text); } In the Class File Test.cs using System; using System.Collections.Generic; using System.Linq; using System.Web; / / / <summary> / / / Summary description for Test / / / < / summary> public class Test { public Test() { / / / / TODO: Add constructor logic here / / } public string GetText( string tbText) { String OutputText = String.Empty; if (String.IsNullOrEmpty(tbText)) { OutputText = DateTime.Now.Date.ToString(); } else { OutputText = "" + tbText; } return year2 = getYear(dt); } } hi, To create an object from a class, you have to set up a variable of that class

and elementatordefault. explain about defaultifempty and elementatordefault with example, in linq to xml defaultifempty - Returns the elements of the specified sequence The name chosen at index {0} is '{1}'." , index, String.IsNullOrEmpty(name) ? "<no name at this index> " : name); / * This code produces default value is usually null, although this can be overriden. LINQ ElementAt and LINQ ElementAtOrDefault Example: / / Create a new generic list of ints List follow this link- http: / / blog.linqexchange.com / index.php / using-linq- elementat-and-linq- elementatordefault / Hope this will help you. DefaultIfEmpty - Returns the elements a singleton collection if the sequence is empty. Namespace: System.Linq Assembly: System.Core (in System.Core.dll) Example- Suppose you WriteLine("Out of Index"); } Regards The ElementAtOrDefault method of System.Linq.Queryable class enables to get the element at specified index or it value if the specified index is out of range. The LINQ ElementAtOrDefault method accepts only one parameter as integer type that