TextBox problem with newLine

Question

Hello,
I have a textbox called textBox1, which multiline property is true. When i insert a statement like:

                          

 textBox1.Text="Hello\r\nWorld";

its showing like :

Hello

World

But after that i want to set the cursor position on the third line. How to do that. I am using windows applicatio with C#.
regards,
bjb