Linq Concatenate Row Values. Dec 1, 2025 · The LINQ standard query operators provide query cap

Dec 1, 2025 · The LINQ standard query operators provide query capabilities including filtering, projection, aggregation, and sorting in C#. The basic gist of it is that you cannot access string. STRING_AGG concatenates the values of string expressions and places separator values between them. I have the following data as table called "SudentAssessment" with these data. Another thing to improve would be to set the capacity of the StringBuilder, but then you would need to loop though the dictionary and add upp the length of the strings Aug 2, 2018 · I will get 3 rows of result from the table. trim Into… Jan 28, 2022 · Hello All we want to append " ’ " in each row of the column"Data" of data table DT1 without using For each row. foreach(row in Dataset) { string finalName= row. While the second parameter is the list we are concatenating with the specified separator. May 10, 2013 · I have following LINQ query to get a set of data. The suggested code from the referenced link above is as follows - Nov 22, 2015 · How do I concatenate all content of a list in one string in C#? Feb 10, 2022 · How to concatenate multiple rows list with same value into single row Asked 3 years, 11 months ago Modified 3 years, 11 months ago Viewed 2k times Sep 3, 2012 · One thing to improve would be to avoid the intermittent strings p. However I need the result to be Peacock,Lion,Lizard. I need to remove duplicates based on Name, Number and Friend column. I want to add a new property for data from child table which will have column values from a child Nov 25, 2025 · In SQL Server, there are many scenarios where you might need to concatenate multiple row values from a column into a single comma-separated string. Null values are added into the rows from both tables that don't have a match. Feb 8, 2018 · I Have a datatable with following records ID NAME VALUE CONTENT 1 AAA 10 SYS, LKE 2 BBB 20 NOM 1 AAA 15 BST 3 CCC 30 DSR 2 BBB Oct 20, 2023 · Hello so my situation is: I have a merged data table which I compare with another datatable (A_B_C) by using LINQ activity in order to have only unique rows as outcome, my code is: Certsdone - my merged DT unique row … Jan 21, 2020 · We would like to show you a description here but the site won’t allow us. toString. join in EF queries. Dec 4, 2025 · It retrieves every row but only the specified columns, which are product_name and unit_price. Learn about LINQ Concatenation operator - Concat. Dec 11, 2025 · There are multiple ways to concatenate strings in C#. Please help. This is working fine. Use LINQ to concatenate multiple rows into single row (CSV property) Asked 16 years, 10 months ago Modified 8 years, 7 months ago Viewed 36k times May 23, 2023 · This tutorial explains how to concatenate text and date values in Excel, including an example. I used String. The Concat () method appends two sequences of the same type and returns a new sequence (collection). var fields = from row in datarows from field in row from col in columnnames where field. ToList(); i tried above code, i don't know how to get expected output steven 0 2 Reply ANSWER Replied: on Nov 10, 2023 07:13 AM Report Nov 5, 2021 · I have an existing linq query which gets some data into a view model object. Nov 10, 2023 · 1 ID1 chennai 2 ID2 bglore 2 ID1 delhi linq query output userid name location ID1 A chennai,delhi ID2 B bglore var results = _context. Collections. compare() and DataFrame. This comprehensive tutorial explores grouping techniques, query expressions, and practical examples to master LINQ data manipulation in C# programming. trim, k2=d (8). Join(“,”, From i In Group Select i. Then you have the data in memory (aka LINQ to Objects), so you can access string. ToString,row(“Post Dec 1, 2008 · In many places in our code we have collections of objects, from which we need to create a comma-separated list. Key + p. IQueryable<TSource> Concat<TSource> (this System. The type of collection varies: it may be a DataTable from which we need a certain col. (From d In dt. Input Datatable : Name Work Ram Tester Ram Developer Ram Devops John SM John Tester Output - Name work Tester Ram Developer Devops John SM Tester Sep 5, 2012 · Concatenate multiple rows into a single row in LINQ Asked 13 years, 4 months ago Modified 9 years, 3 months ago Viewed 20k times Use LINQ to concatenate multiple rows into single row (CSV property) Asked 16 years, 10 months ago Modified 8 years, 7 months ago Viewed 36k times Jan 30, 2019 · Group the repetitive value in the object list using Linq query. 9k33137 asked Aug 2, 2018 at 20:08 TheFallenOne 1,71622766 1 Answer Sorted by: 3 Sep 2, 2017 · 698 Is there any easy LINQ expression to concatenate my entire List<string> collection items to a single string with a delimiter character? What if the collection is of custom objects instead of string? Imagine I need to concatenate on object.

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