Check for the first char in a text box

Question

I'm trying to check if a textbox starts with a -.

I tried the following code, but it doesn't work:

if(textbox1->Text::StartWith("-"))

if(String(textbox1->Text).StartWith("-");

Answer 1

Assuming this is C++/CLI and WinForms (in which case your question really needs retagging),

if (textBox1->Text->StartsWith("-"))