C# richtexteditor insert
I have a richtexteditor that works. But I want to make a button in the toolbar(where you can edit the richtextbox) to insert a piece of text ( the text will be: " {...} "). 

What did i do already:

I made a button in the toolbar. Now is my question: how do you insert this string on the place where the cursor stands?

thanks
C# richtexteditor insert
===

I have a richtexteditor that works. But I want to make a button in the toolbar(where you can edit the richtextbox) to insert a piece of text ( the text will be: " {...} "). 

What did i do already:

I made a button in the toolbar. Now is my question: how do you insert this string on the place where the cursor stands?

thanks