In some expressions, it's easier to concatenate strings using string interpolation, as the following code shows: string userName = "" Use the + and += operators for one-time concatenations.
The following code shows examples of using the + and += operators to concatenate strings: string userName = ""
Even if you use several + operators in one statement, the string content is copied only once. The + operator is easy to use and makes for intuitive code. To concatenate string variables, you can use the + or += operators, string interpolation or the String.Format, String.Concat, String.Join or StringBuilder.Append methods. "objects in memory is often tedious and error-prone." Transferring data from SQL tables or XML trees to " + "query can only be represented as a string without compile-time type checking or " + Because the object world has no notion of query, a " + Data types often require translation between the two worlds there are " + "are tables, columns, rows, nodes, and separate languages for dealing with " + On the one side are concepts such as classes, " + Programmers work in C# or Visual Basic " + String text = "Historically, the world of data and the world of objects " + Concatenation of literals is performed at compile time, not run time. There's no run-time performance cost regardless of the number of strings involved. The parts are concatenated into a single string at compile time. The code concatenates the smaller strings to create the long string literal. The following example splits a long string literal into smaller strings to improve readability in the source code. The modified code either runs in the interactive window or, if compilation fails, the interactive window displays all C# compiler error messages. Once you execute the code, you can modify it and run the modified code by selecting Run again. Select the Run button to run an example in an interactive window. The C# examples in this article run in the Try.NET inline code runner and playground.
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