source code page in csharp

To create a source code file in C#, you can use an Integrated Development Environment (IDE) such as Visual Studio. Follow these steps:

1. Open Visual Studio.
2. Create a new project by clicking File > New > Project.
3. Select the C# template you want to use for your project, such as Console Application or Windows Forms Application.
4. Choose a name and location for your project and click Create.
5. In the Solution Explorer, right-click on the project name and select Add > New Item.
6. Select C# File, give it a name and click Add.

You can now begin writing your C# code in the editor. Save your file and build your project by clicking on Build > Build Solution. This will compile your code and generate an executable file that can be run.