C#

using (PromptForm form = new PromptForm())
{
  DialogResult result = form.ShowDialog();
  if (result == DialogResult.OK)
    return form.Answer;
  else return null;
}

PromptForm form = new PromptForm();
try
{
  // Rest of code goes here
}
finally
{
  form.Dispose();
}

--ABC123
Content-type: application/x-www-form-urlencoded
 
param1=value1&param2=value2
--ABC123
Content-disposition: form-data; name="FileField"
Content-type: text/plain
 
This content is from a text document.
--ABC123--

SqlCommand cmd = connection.CreateCommand();
cmd.CommandText = "sp_helpdb";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@dbname", SqlDbType.NVarChar, 128).Value = "master";
SqlParameter retVal = new SqlParameter("@RETURN_VALUE", SqlDbType.NVarChar,
  128, ParameterDirection.ReturnValue, false, 0, 0, null,
  DataRowVersion.Current, null);
cmd.Parameters.Add(retVal);
try
{
  connection.Open();
  cmd.ExecuteNonQuery();
}
finally
{
  connection.Close();
}
Console.WriteLine(retVal.Value);