I need help with code for the click event of a Button1 that will delete two characters to the left of the current cursor position in a richTextBox1 on a Silverlight 4 Page.
Therefore if the following the text in richTextBox1 before clicking Button1 (with the cursor currently being just after the full stop)
This is a simple sentencee.
After clicking Button1 it should look like
This is a simple sentence
Please note that clicking Button1 has deleted full stop and the extra e at the end of the word "sentence"
Thank you for your help in anticipation.