Question

As you can see, I am trying to insert variables into strings. In my new finance program, I am attempting to insert the variables (stock symbols) into strings, which is the URL to the interactive charts in Yahoo! Finance. Here is a code sample from my failed program:

int num = int:: Parse(textBox1->Text);
// ...
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^ e) {
    this->webBrowser1->Navigate("http://finance.yahoo.com/blahblah/xxxxx"num"xxxxx"num".html);
}

In the code above, I tried to put the variable num inside the URL. I formed a string from bits and pieces. The only problem I have now is how to stick the variables in. Here are the errors I ran into:

Warning – C++ CodeDOM parser error: Line: 123, Column: 14 — Unexpected token for a ‘term’.

Error – error C2146: syntax error : missing ')' before identifier 'num'.

Error – error C2059: syntax error : ')'.

I would appreciate any help if possible. Please post any improvements, substitutes, or tips to help. You can also email me at [e-mail]. Thanks!

Answer 1

Something like this should work

String::Format(gcnew String("http://finance.yahoo.com/blah blah/xxxxx{0}xxxxx{1}.html"),
              123,
              456);

(no compiler available to check actual code)

---

Here is my stab (still not compiled/tested) at integrating this into your snippet:

int num = int:: Parse(textBox1->Text);
// ...
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^ e) {
    this->webBrowser1->Navigate(String::Format(gcnew String("http://finance.yahoo.com/blah blah/xxxxx{0}xxxxx{1}.html"),
              num,
              num));
}