JavaScript interacts with .NET applications

JavaScript interacts with .NET applications_Experiment 1

C# calls JavaScript functions
                                                                                                                                                                           to . A few examples are given below to facilitate everyone’s learning and communication.

There are many JavaScript engines currently, including Google’s Google Chrome V8, Noesis.Javascript, Jurassic.ScriptEngine and so on. As a result of the test, Jurassic.ScriptEngine is more convenient.

The following takes Jurassic.ScriptEngine as an example to introduce a few small examples.

Example 1, calling JavaScript functions in C#

(1) Create a new C# Windows project

(2) Reference the Jurassic library

The picture after the reference is completed:

(3) Add 2 TextBox and 1 Button on WinForm. X TextBox is used to enter the JS code, and the results displayed by the JS calculation. The interface layout is as shown in the figure: The corresponding code is as follows: The corresponding code

              var is a weakly typed object in C#, newly added since the .NET3.5 version. Detailed instructions can be found on MSDN.引 First load the JS code in Textbox1 through the script engine, and then call the C#call to the program that has been loaded to the JS engine by calling the global function.

JS code:

                                                                                                                                          

JS code:

function add (a,b)

{

Return (a+b)*2;

}

function main(a, b)

{

var x=add(a,b);

return x;

}

Running effect (2)

Summary:

in the script.