Search Results

Search found 111084 results on 4444 pages for 'linq to sql code generato'.

Page 225/4444 | < Previous Page | 221 222 223 224 225 226 227 228 229 230 231 232  | Next Page >

• Need help with a Linq XML conditional grouping query

  - by FiveTools

  I have the following xml fragment: <BANNER ID="Banner 2" ROW_WIDTH="200"> <BANNER_TEXTS ID="BANNER_TEXTS"> <BANNER_TEXT UNDERLINE="false" SPAN_COL="1" WIDTHT="78px"></BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Years In Practice</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Internet Usage</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="4" WIDTHT="312px">Sales Reps Seen / Week</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Prescription Volume</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="222px">Patient Load</BANNER_TEXT> </BANNER_TEXTS> <BANNER_TEXTS ID="COLUMN_TEXTS"> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Total</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#60; 11 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">11-20 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">21-30 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Light 1-5 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Medium 6-10 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Heavy &#62;10 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">0</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">1-2</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">3-5</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#62;5</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">1-100</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">101-150</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#62;150</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">1-100</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">101-200</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">&#62;200</BANNER_TEXT> </BANNER_TEXTS> <BANNER_TEXTS ID="COLUMN_TEXTS"> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(A)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(B)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(C)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(D)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(E)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(F)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(G)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(H)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(I)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(J)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(K)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(L)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(M)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(N)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(O)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(P)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(Q)</COLUMN_TEXT> </BANNER_TEXTS> </BANNER> I would like to group all the 'BANNER_TEXT' in the second sequence using the first sequence 'BANNER_TEXT' as the key (only include elements where string is not null or empty). The span_col attribute in the first 'BANNER_TEXT' sequence indicates which elements by position in the 2nd sequence are related. An example: 'Years in Practice' would be the first key and the attribute SPAN_COL=3 for that element indicates it would contain '< 11 years', '11-20 years', '21-30 years' (the first grouping of string.empty = Total would be skipped).

  Read the article

• Execution plan issue requires reset on SQL Server 2005, how to determine cause?

  - by Tony Brandner

  We have a web application that delivers training to thousands of corporate students running on top of SQL Server 2005. Recently, we started seeing that a single specific query in the application went from 1 second to about 30 seconds in terms of execution time. The application started throwing timeouts in that area. Our first thought was that we may have incorrect indexes, so we reviewed the tables and indexes. However, similar queries elsewhere in the application also run quickly. Reviewing the indexes showed us that they were configured as expected. We were able to narrow it down to a single query, not a stored procedure. Running this query in SQL Studio also runs quickly. We tried running the application in a different server environment. So a different web server with the same query, parameters and database. The query still ran slow. The query is a fairly large one related to determining a student's current list of training. It includes joins and left joins on a dozen tables and subqueries. A few of the tables are fairly large (hundreds of thousands of rows) and some of the other tables are small lookup tables. The query uses a grouping clause and a few where conditions. A few of the tables are quite active and the contents change often but the volume of added rows doesn't seem extreme. These symptoms led us to consider the execution plan. First off, as soon as we reset the execution plan cache with the SQL command 'DBCC FREEPROCCACHE', the problem went away. Unfortunately, the problem started to reoccur within a few days. The problem has continued to plague us for awhile now. It's usually the same query, but we did appear to see the problem occur in another single query recently. It happens enough to be a nuisance. We're having a heck of a time trying to fix it since we can't reproduce it in any other environment other than production. I have downloaded the High Availability guide from Red Gate and I read up more on execution plans. I hope to run the profiler on the live server, but I'm a bit concerned about impact. I would like to ask - what is the best way to figure out what is triggering this problem? Has anyone else seen this same issue?

  Read the article

• LINQ transform Dictionary<key,value> to Dictionary<value,key>

  - by code4life

  I'm having a low-brainwave day... Does anyone know of a quick & elegant way to transform a Dictionary so that the key becomes the value and vice-versa? Example: var originalDictionary = new Dictionary<int, string>() { {1, "One"}, {2, "Two"}, {3, "Three"} }; becomes var newDictionary = new Dictionary<string, int>(); // contents: // { // {"One". 1}, {"Two". 2}, {"Three", 3} // };

  Read the article

• Uninstalling a SQL Server Clustered Instance

  I have installed and uninstalled several instances of SQL Server in the past. Today, I need to uninstall a SQL Server 2008 R2 clustered instance. I have never uninstalled a clustered instance of SQL Server before. Can you provide a how-to guide to uninstall a clustered instance of SQL Server 2008 R2? NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

  Read the article

• How to select a table from highest table use LinQ query

  - by user299683

  I have a sequence relationship: A has many Bs. B has many Cs. C has many Ds. They also make me so confused if there are more than 3 or 4,..tables. So, how can i select all Cs that satify A.Id="1". (something likes finding all grandsons of a grandfather) Thanks in advance.

  Read the article

• Problem in converting ToDictionary<Datetime,double>() using LINQ(C#3.0)

  - by Newbie

  I have written the below return (from p in returnObject.Portfolios.ToList() from childData in p.ChildData.ToList() from retuns in p.Returns.ToList() select new Dictionary<DateTime, double> () { p.EndDate, retuns.Value } ).ToDictionary<DateTime,double>(); Getting error No overload for method 'Add' takes '1' arguments Where I am making the mistake I am using C#3.0 Thanks

  Read the article

• Entity framework with Linq to Entities performance

  - by mare

  If I have a static method like this public static string GetTicClassificationTitle(string classI, string classII, string classIII) { using (TicDatabaseEntities ticdb = new TicDatabaseEntities()) { var result = from classes in ticdb.Classifications where classes.ClassI == classI where classes.ClassII == classII where classes.ClassIII == classIII select classes.Description; return result.FirstOrDefault(); } } and use this method in various places in foreach loops or just plain calling it numerous times, does it create and open new connection every time? If so, how can I tackle this? Should I cache the results somewhere, like in this case, I would cache the entire Classifications table in Memory Cache? And then do queries vs this cached object? Or should I make TicDatabaseEntities variable static and initialize it at class level? Should my class be static if it contains only static methods? Because right now it is not.. Also I've noticed that if I return result.First() instead of FirstOrDefault() and the query does not find a match, it will issue an exception (with FirstOrDefault() there is no exception, it returns null). Thank you for clarification.

  Read the article

• LINQ extention SelectMany in 3.5 vs 4.0?

  - by Moberg

  Hi When I saw Darins suggestion here .. IEnumerable<Process> processes = new[] { "process1", "process2" } .SelectMany(Process.GetProcessesByName); ( http://stackoverflow.com/questions/3059667/process-getprocessesbyname/3059733#3059733 ) .. I was a bit intrigued and I tried it in VS2008 with .NET 3.5 - and it did not compiling unless I changed it to .. IEnumerable<Process> res = new string[] { "notepad", "firefox", "outlook" } .SelectMany(s => Process.GetProcessesByName(s)); Having read some Darins answers before I suspected that it was me that were the problem, and when I later got my hands on a VS2010 with.NET 4.0 - as expected - the original suggestion worked beautifully. My question is : What have happend from 3.5 to 4.0 that makes this (new syntax) possible? Is it the extentionmethods that have been extended(hmm) or new rules for lambda syntax or? I've tried to search but my google-fu was not strong enough. Please forgive if the question is a bit naive and note that I've taged it as beginner :)

  Read the article

• For-Loop and LINQ's deferred execution don't play well together

  - by Tim Schmelter

  The title suggests that i've already an idea what's going on, but i cannot explain it. I've tried to order a List<string[]> dynamically by each "column", beginning with the first and ending with the minimum Length of all arrays. So in this sample it is 2, because the last string[] has only two elements: List<string[]> someValues = new List<string[]>(); someValues.Add(new[] { "c", "3", "b" }); someValues.Add(new[] { "a", "1", "d" }); someValues.Add(new[] { "d", "4", "a" }); someValues.Add(new[] { "b", "2" }); Now i've tried to order all by the first and second column. I could do it statically in this way: someValues = someValues .OrderBy(t => t[0]) .ThenBy(t => t[1]) .ToList(); But if i don't know the number of "columns" i could use this loop(that's what I thought): int minDim = someValues.Min(t => t.GetLength(0)); // 2 IOrderedEnumerable<string[]> orderedValues = someValues.OrderBy(t => t[0]); for (int i = 1; i < minDim; i++) { orderedValues = orderedValues.ThenBy(t => t[i]); } someValues = orderedValues.ToList(); // IndexOutOfRangeException But that doesn't work, it fails with an IndexOutOfRangeException at the last line. The debugger tells me that i is 2 at that time, so the for-loop condition seems to be ignored, i is already == minDim. Why is that so?

  Read the article

• Assigining ID vs object - linq to sql

  - by jess

  Say, I have an entity Customer which has relationship with city,order etc.Now,when I am adding a customer object,should I assign customer.cityid, or customer.city? Now,from form I get cityid from dropdown,to assign city object,I will have to make a query using id selected.

  Read the article

• linq include with condition

  - by user276640

  i have function public Menu Details(int? id) { return _dataContext.Menu.Include("ChildMenu").FirstOrDefault(m => m.MenuId == id); } now i need to add condition to child list ChildMenu something like fieldname=id. how can i do it?

  Read the article

• LINQ, creating unique collection of a collection

  - by Wish

  I have class Vertex and a class Edge (Edge holds 2 properties - Vertex Source and Vertex Target); Edges and Vertexes are collected into lists Some example: A-->B // edge from vertex A to B B-->C // edge from vertex B to C C-->A // edge from vertex C to A A-->C // edge from vertex A to C -- this is two way edge So I would like to make IDictionary<Edge, bool> which would hold edges (A--B and B--A would be like 1), and bool - if it is two way or no. I need it because when I draw them now, it draws 2 arrows under one another. I would better make 1 arrow. So I'm pretty stuck right here... May anybody help me a bit ?

  Read the article

• SQL Server Migration Assistant 2008 (SSMA)

  One of my client’s requirements is to migrate and consolidate his company departments’ databases to SQL Server 2008. As I know the environment, they are using MySQL , MS-Access and SQL Server with different applications. Now the company has decided to have a single dedicated SQL Server 2008 database server to host all the applications. So there are a few things to do to upgrade and migrate from MySQL and MS-Access to SQL Server 2008. For the migration task, I found the SQL Server Migration Assistant 2008 (SSMA 2008) is very useful which reduces the effort and risk of migration. So in this tip, I will do an overview of SSMA 2008. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

  Read the article

• Is SQL Server Compact *ever* OK to use on a web server?

  - by Troy

  I'd like to host a personal database for about 500 people (1 database per person) on my web server. A person could possibly share their database with a friend or two. On my web server, I'd have some web services, perhaps for doing synchronization, and maybe even an ASP.NET Web Forms front end to the database. If I restart my IIS web server, would this likely cause database corruptions? Would this be expected to perform ok? If not Compact, should I instead use SQL Express and create a database in SQL Server for each of my 500 people?

  Read the article

• Conditional Join In LINQ?

  - by Soo

  I am trying to write a query that grabs information from one database and joins it to information in a different database. TableA idA valueA idB TableB idB valueB The tricky part is that in TableA, idB isn't always defined, so when I do a normal join, I only get results where TableA has a idB value. What I want is to be able to grab all of the information from TableA even if it doesn't have a corresponding idB value.

  Read the article

• How do I convert an arbitrary list of strings to a SQL rowset?

  - by Jim Kiley

  I have a simple list of strings, which may be of arbitrary length. I'd like to be able to use this list of strings as I would use a rowset. The app in question is running against SQL Server. To be clearer, if I do SELECT 'foo', 'bar', 'baz' I get 'foo', 'bar', and 'baz' as fields in a single row. I'd like to see each one of them as a separate row. Is there a SQL (or SQLServer-specific) function or technique that I'm missing, or am I going to have to resort to writing a function in an external scripting language?

  Read the article

• Linq order by aggregate in the select { }

  - by Joe Pitz

  Here is one I am working on: var fStep = from insp in sq.Inspections where insp.TestTimeStamp > dStartTime && insp.TestTimeStamp < dEndTime && insp.Model == "EP" && insp.TestResults != "P" group insp by new { insp.TestResults, insp.FailStep } into grp select new { FailedCount = (grp.Key.TestResults == "F" ? grp.Count() : 0), CancelCount = (grp.Key.TestResults == "C" ? grp.Count() : 0), grp.Key.TestResults, grp.Key.FailStep, PercentFailed = Convert.ToDecimal(1.0 * grp.Count() /tcount*100) } ; I would like to orderby one or more of the fields in the select projection.

  Read the article

• Problematic behavior of Linq Union?!

  - by Foxfire

  Hi, consider the following example: public IEnumerable<String> Test () { IEnumerable<String> lexicalStrings = new List<String> { "test", "t" }; IEnumerable<String> allLexicals = new List<String> { "test", "Test", "T", "t" }; IEnumerable<String> lexicals = new List<String> (); foreach (String s in lexicalStrings) lexicals = lexicals.Union (allLexicals.Where (lexical => lexical == s)); return lexicals; } I'd hoped for it to produce "test", "t" as output, but it does not (The output is only "t"). I'm not sure, but may have to do something with the deferred processing. Any ideas how to get this to work or for a good alternative?

  Read the article

• Linq 2 SQL Grouping Question

  - by Jack Marchetti

  var groups = from p in dc.Pool join pm in dc.PoolMembers on p.ID equals pm.PoolID group p by p.Group into grp select new { grp.ID }; This isn't working. Basically I want to do the grouping, and then select certain columns, but when I do select new { grp. } I get no intellisense, so I'm obviously doing something wrong. Any ideas?

  Read the article

• Use of where in multiple joins to remove rows - linq

  - by bergin

  hi, I have a table of orders. the status is on the soilorders which is joined to the orders. I only want to return orders where the joined soilorder does not have status "Removed". I had thought that join sso in db.SoilSamplingOrders on ord.order_id equals sso.order_id where sso.status.Equals("Removed")!=true but then no records are returned! thanks for any help (query below) var query = from ord in db.Orders join sso in db.SoilSamplingOrders on ord.order_id equals sso.order_id where sso.status.Equals("Removed")!=true join cust in db.Customers on ord.customer_id equals cust.customer_id select new Listing { assigned_to = sso.assigned_to, company = cust.company, order_id = ord.order_id, order_created = ord.order_created, customer_id = ord.customer_id, order_created_by_employ_id = ord.order_created_by_employ_id, first_farm_on_order = (from f in db.SoilSamplingSubJobs where f.order_id == ord.order_id select new ListingSubJob { first_farm_on_order = f.farm }). AsEnumerable().First().first_farm_on_order, total_fields = (from f in db.SoilSamplingSubJobs where f.order_id == ord.order_id select new { f.sssj_id }).AsEnumerable().Count(), total_area = (float?) (from f in db.SoilSamplingSubJobs where f.order_id == ord.order_id && f.area_ha != null select f.area_ha ).Sum() ?? 0 , total_area_ph_density = (float?)(from f in db.SoilSamplingSubJobs where f.order_id == ord.order_id && f.ph != null select f.ph).Sum() ?? 0, };

  Read the article

• Strange LINQ to SQL Behavior

  - by mcass20

  What is wrong with the last query? Is it a bug or am I missing something? This query returns 2 records (correct): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>David</value>%")); This query returns 2 records (correct): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>%David%</value>%")); This query returns 0 records (correct): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>av</value>%")); This query returns 2 records (correct): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>%av%</value>%")); This query returns 0 records (correct): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>v</value>%")); This query returns 15 records (incorrect, should return 2): query = query.Where(Log => SqlMethods.Like(Log.FormattedMessage, "%<key>Name</key><value>%v%</value>%"));

  Read the article

• SQL Server 2008: The columns in table do not match an existing primary key or unique constraint

  - by 109221793

  Hi guys, I need to make some changes to a SQL Server 2008 database. This requires the creation of a new table, and inserting a foreign key in the new table that references the Primary key of an already existing table. So I want to set up a relationship between my new tblTwo, which references the primary key of tblOne. However when I tried to do this (through SQL Server Management Studio) I got the following error: The columns in table 'tblOne' do not match an existing primary key or UNIQUE constraint I'm not really sure what this means, and I was wondering if there was any way around it?

  Read the article

• how to get particular column distinct in linq to sql

  - by kart

  Hi All, Am having columns as category and songs in my table for each category there are almost 10 songs and in total there are 7 category such that which was tabled as category1 songCategory1a category1 songCategory1b category1 songCategory1c --- category2 songCategory2a category2 songCategory2b category2 songCategory2c --- category3 songCategory3a category3 songCategory3b category3 songCategory3c --- like that there is table in that i want to get the result as category1 category2 category3 category4 kindly any one help me , i tried (from s in _context.db_songs select new { s.Song_Name, s.Song_Category }).Distinct().ToList(); but it didnt work its resulting as such.

  Read the article

• Which Namespaces Must Be Used to Connect to SQL Server with ADO.NET?

  - by every_answer_gets_a_point

  i am using this example to connect c# to sql server. can you please tell me what i have to include in order to be able to use sqlconnection? it must be something like: using Sqlconnection; ??? string connectionString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=""C:\SQL Server 2000 Sample Databases\NORTHWND.MDF"";Integrated Security=True;Connect Timeout=30;User Instance=True"; SqlConnection sqlCon = new SqlConnection(connectionString); sqlCon.Open(); string commandString = "SELECT * FROM Customers"; SqlCommand sqlCmd = new SqlCommand(commandString, sqlCon); SqlDataReader dataReader = sqlCmd.ExecuteReader(); while (dataReader.Read()) { Console.WriteLine(String.Format("{0} {1}", dataReader["CompanyName"], dataReader["ContactName"])); } dataReader.Close(); sqlCon.Close();

  Read the article

• Displaying text in C# from XML via LINQ

  - by xscape

  Is there a way to display "Test" value as bold just like the implementation of newline? <testElement>Test &#xD; Test</testElement> The output of the above line when you display it is: TEST TEST I want to know what/how to make the second line as bold just line by using expressions. Thank you

  Read the article

< Previous Page | 221 222 223 224 225 226 227 228 229 230 231 232  | Next Page >