How Can I Dynamically Execute C# Code Like JavaScript's `eval()`?

The dynamic code in C#executes

Dynamic code assessment is a powerful technology for creating dynamic and flexible applications. Although JavaScript uses the EVAL () function to achieve this purpose, C#provides different methods to achieve similar functions.

Use the Roslyn script API

Roslyn script API supports dynamic execution of the C#code. Consider the example of the attributes of different names based on the integer variable I.

Code example:

// 假设您有一个整数变量'i'

// 创建一个表示所需属性名称的字符串
var propertyName = "Property" + i.ToString();

// 使用CSharpScript.EvaluateAsync动态执行代码
dynamic result = await CSharpScript.EvaluateAsync($"typeof(MyClass).GetProperty(\"{propertyName}\")?.GetValue(myObj)");

Explanation:

Here, CSHARPSCRIPT.EVALUASYNC accepts the string of the code that represents the code, and returns a dynamic object containing the result. This string contains:

Getproperty method, search attribute according to the name.

MyObj is an instance of the class containing the attribute.
GetValue method to obtain the value of the attribute.
• This method provides the function of flexible dynamic access attributes, similar to the EVAL () function in JavaScript.

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