C# : change listbox items color

i am working on program on windows forms I have a listbox and I am validating data I want the correct data be added to the listbox with color green while the invalid data added with red color and I also want from the listbox to auto scroll down when an item is added and thanks

code :

try
{
    validatedata;
    listBox1.Items.Add("Successfully validated the data  : "+validateddata);
}
catch()
{
    listBox1.Items.Add("Failed to validate data: " +validateddata);
}