LinqToRDF (http://code.google.com/p/linqtordf/) is a well known library to bring Linq to RDF data. But it is not active for nearly two years. So I am looking for an alternative. My basic requirement is providing basic Linq function with general RDF data sources. Commercial library is welcome also. Any suggestions are welcome. Ying ...
The MSDN documentation states: Expression.Quote Method Creates a UnaryExpression that represents an expression that has a constant value of type Expression. I've been able to build predicate expressions for use in LINQ queries by manually constructing them using the Expression class, but have never come across the need f...
I am performing XML Operations on an XHTML document utilizing Xml and Linq. When converting it back to a String for outputting to a browser, it renders script tags in their original provided form when creating the XElement as <script />. That prevents it being processed correctly by most browsers on the market. I would like to perform...
if i try to write below codes : error return to me: The query results cannot be enumerated more than once public void StartTransaction() { using (var stockMovementCtx = new StockMovementCtxDataContext()) using (var scope = new TransactionScope()) { var stockMovementItems = f...
Hi all. I want to be able to specify the properties to get populated/updated in the linq expression. Something in the following fashion: Proxy.UpdateEmployee(List<string> propertiesNames) Proxy.GetEmployee() //inside the method populate only certain properties The return values must be of known type(no anonymous types accepted). DLINQ...
With that I mean similar to the Linq join, group, distinct, etc. only working on sequences of values, not collections. The difference between a sequence and a collection is that a sequence might be infinite in length, whereas a collection is finite. Let me give you an example: var c1 = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; var c2 =...
String[] a = new String[] { "NIKE", "한글","adidas","한글Korean" }; I like to order the array, the 한글 is first if I just order without options. the English String is always on top. how can I do this? and sorry about my horroble Enligsh, ...
If I have a collection like List<SomeAbstractBaseType> someList = new List<SomeAbstractBaseType>(); And I have added two different child types to this collection (i.e. the two child types inherit from SomeAbstractBaseType) like this: someList.Add(someChildOfType1); someList.Add(someChildOfType2); someList.Add(someOtherChildOfType1);...
How I can use Like query in LINQ .... in sql for eg.. name like='apple'; thanks.. ...
Hi I have the following code: Dim i As Integer For i = 1 To 20 Dim captionTextBox As TextBox = DirectCast(Me.FindControl("news_Image" + i.ToString() + "CaptionTextBox"), TextBox) Dim deleteCheckBox As CheckBox = DirectCast(Me.FindControl("Image" + i.ToString() + "DeleteCheckBox"), CheckBox) If Not deleteChec...
if writing below codes: Error returns.i do like advise : http://stackoverflow.com/questions/794364/how-do-i-use-transactionscope-in-c But only error change:The partner transaction manager has disabled its support for remote/network transactions Exception from HRESULT: 0x8004D025 i am using windows server 2003. using (var stockMov...
I have a categories table "Category" [ID, Title] and a Parent/Child table "CategoryParent" [ID,CategoryID,ParentCategoryID] where a many-to-many tree is represented by the parent of a category being indicated using the ParentCategoryID field in the join table. I thought this would be a simple structure to use to retrieve root categories...
I have a really complicated linq query that I thought I finally got the syntax right for but it's throwing an exception at runtime: {"The method or operation is not implemented."} Could someone please take a look? Thanks! var order = from Ord in imageCreatorDataContext.Orders join Sub in imageCreatorDataCon...
I'm trying to translate some C# LINQ code into VB.NET and am stuck on how to declare an anonymous type in VB.NET. .Select(ci => new { CartItem = ci, Discount = DiscountItems.FirstOrDefault(di => di.SKU == ci.SKU) }) How do you translate C#'s new { ... } syntax into VB.NET? ...
I have the following: XDocument xdoc = XDocument.Load("C:\\myfile.xml"); List<Tag> list = new List<Tag>(); foreach (var tag in xdoc.Descendants("META")) { string name = tag.Attribute("name").Value; string value = tag.Element("value").Value; list.Add(new Tag { Name = name, Value = value, Score = score, Key = key }); } but I need...
I'm trying to use a nested multi-line lambda Function in VB.NET and am getting an error. Here's what my code looks like: cartItems = cartItems.Select(Function(ci) New With {.CartItem = ci, .Discount = discountItems.FirstOrDefault(Function(di) di.SKU = ci.SKU)}) .Select(Function(k) If k.Discount Is Not Nothing Then ...
I have a user entity with the following properties that map to a field in the database: Id int Username varchar(25) Password binary(64) Salt binary(64) Name varchar(50) Locked bit What I don't want to do is always return the Password and Salt for every query. But for certain queries, I do want...
How do I return a top 5 with rank number using linq? Dim Top5 = From A In DAO.Cache.Select(Of VO.Empresa).Take(5) Select A.Nome I would like this result: Rank Name 1 "Example Name" 2 "Example Name" 3 "Example Name" 4 "Example Name" 5 "Example Name" ...
I have the following sample codes. I don't like to have lTest being captured and get the same value as lRet. I tried to introduce "List<Test> lTest1 = lTest0;" in the function AddMore2Test. It does not work. What is the proper way to do this? Thanks! Codes - private void Test(){ List<Test> lTest = GetInitTestList(); List<Test...
I wrote a query that gets a list of objects using linq. The code executes fine in the project, but fails when I try to access it from the fitnesse project. base(global::System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString, mappingSource) I guess it has something to do with the connection strin...