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Modified today. The reference documentation for the standard query operators in the System.Linq namespace generally uses method syntax. You can create a new method to check age using if else and call that method from linq Query Result=CheckAge (p.Age) public string CheckAge (int age) { if (age <= 24) return "Age is less than 24 yrs"; else if (age <= 40) return "Age is less than 40 yrs"; else if (age >= 60) return "Age is more than 60 yrs"; return ""; } "Client" : "Other")) I'm not sure what the question is, but a possible answer could be: It would be a complicated way of saying something simple, though. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Check this example. [Solved]-Using if else statement in Linq Query-LINQ,C# You can create a new method to check age using if else and call that method from linq Query Result=CheckAge(p.Age), You can use Conditional Logic in the select, sorry i'm confuse with syntax it's my request u define it clearly, That is nothing but if(age<=24) {} else {}, http://msdn.microsoft.com/en-us/library/ty67wk28(v=VS.71).aspx. LinqExpression()_linq expression_maiker- This is only viable if you don't need the element's value in the condition. The following example shows a simple query expression and the semantically equivalent query written as a method-based query. Status = (Deals.Count() == 0 ? All you need is: If clientId = 0 we want ALL employees,. Provide an answer or move on to the next question. if (condition) { query = query.Where (b => b == "something else"); } You can use the WhereIf statement method avaialbe in LINQ in this way: query = query.WhereIf (condition, b => b == "something else"); So your final code will be: When to use multiple where clauses in LINQ? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 1. s.StudentID == StudentUserID : s.TutorUserID == TutorUserID), where (ISSTUDENT == true ? I had a scenario like this where I had to check for null within the list itself. Extensions methods "extend" an existing type; they can be called as if they were instance methods on the type. How to write an inline IF statement in JavaScript? ? About an argument in Famine, Affluence and Morality. Find centralized, trusted content and collaborate around the technologies you use most. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Does a summoned creature play immediately after being summoned by a ready action? In a LINQ query, the from clause comes first in order to introduce the data source ( customers) and the range variable ( cust ). Thanks for contributing an answer to Stack Overflow! You need to understand that what's in the WEHRE clause is a boolean expression not a statement. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. You also must use a method call for a query that retrieves the element that has the maximum value in a source sequence. Is it suspicious or odd to stand by the gate of a GA airport watching the planes?