private void sample(objectsender, EventArgs e)
{
	//
	// When generating the service reference, choose "CustomerService" for namespace.
	//
	
	// Step 1: Prepare request
	CustomerService.AccessTokenRequest request = new CustomerService.AccessTokenRequest();
	request.client_id = "YOUR API KEY HERE";
	request.client_secret = "YOUR API SECRET HERE";
	request.grant_type = "client_credentials";

	// Step 2: Make request to server
	CustomerService.SoapServiceClient client = new CustomerService.SoapServiceClient();
	CustomerService.AccessToken response = client.GetAccessToken(request);
	
	// Step 3: Parse response
	string token = "";
	if (response.error.Equals(""))
	{
		token = response.access_token;
	}
	else
	{
		// Display error message
	}
}