The C# equivalent [closed]

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I am trying to close the program :HHTCntrl.exe as if the user clicked exit on that program. I have the following Borland C++ code. What is the C# equivalent?

FILE *sf;
AnsiString ClosePollControl = AnsiString("HHT")+cbHHTNo->Text+AnsiString(".cls");
sf = fopen(ClosePollControl.c_str(),"w");
fclose(sf);

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You're opening the file for writing. Assuming that cbHHTNo is the string containing file name, in C# it will go like that:

var path = "HHT" + cbHHTNo + ".cls";
using (var file = File.OpenWrite(path))
{
    // do sth with the open file stream here
}

---

Well, it is actually pretty simple.

There isn't a concept of an AnsiString in C# so you have to use a string.

string ClosePollControl = "HHT" + cbHHTNo->Text + ".cls";
// Open the stream and write to it.
using (FileStream fs = File.OpenWrite(ClosePollControl)) 
{

}

This assumes you have some user level control, cbHHTNo, that you are getting the Text (e.g. string).

---

If you are trying to shutdown the process then use System.Diagnostics.Process class. For example,

Process process = Process.GetProcessesByName("HHTCntrl.exe").FirstOrDefault();

if (process != null)
{
     process.Kill(); // to immediatelly kill the process or use process.CloseMainWindow() to gracefully "kill" the process
}

If you want to close an active form use Close() method.