I want to build dynamic lambda expression like this: x=> x.ID.
From one of the posts i could so far build x => x.Id >= 3. Can someone help me to
achieve x=> x.ID using code below:
var parameter = Expression.Parameter(typeof(Person), "x");
var member = Expression.Property(parameter, "Id"); //x.Id
var constant = Expression.Constant(3);
var body = Expression.GreaterThanOrEqual(member, constant); //x.Id >= 3
var finalExpression = Expression.Lambda<Func<Person, bool>>(body, param); x => x.Id >= 3
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lambda expression
Jan 31, 2018 11:37 AM|kodnil|LINK
Hello,
I want to build dynamic lambda expression like this: x=> x.ID.
From one of the posts i could so far build x => x.Id >= 3. Can someone help me to achieve x=> x.ID using code below:
var parameter = Expression.Parameter(typeof(Person), "x"); var member = Expression.Property(parameter, "Id"); //x.Id var constant = Expression.Constant(3); var body = Expression.GreaterThanOrEqual(member, constant); //x.Id >= 3 var finalExpression = Expression.Lambda<Func<Person, bool>>(body, param); x => x.Id >= 3</div>
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Re: lambda expression
Feb 01, 2018 10:13 AM|Cathy Zou|LINK
Hi kodnil
You can see how to construct the lambda here,
https://stackoverflow.com/questions/41244/dynamic-linq-orderby-on-ienumerablet/233505#233505
http://www.codemag.com/Article/1607041/Simplest-Thing-Possible-Dynamic-Lambda-Expressions
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/expression-trees/how-to-use-expression-trees-to-build-dynamic-queries
Best regards
Cathy
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