Question: How to Open a custom webpart from the other custom webpart through a link buttom.

I have a custom webpart in which i have a link buttons of all other custom webparts in that page.On click event the particular webpart should be open.

can anyone please help me in solving this...

Answer: 
So, maybe I undetstand your question incorrectly, but...
Here listed all most used Window Form controls: <http://msdn.microsoft.com/en-us/library/aa511482.aspx>

How about the LinkLabel, is it what you're looking for? Read more about the LinkLabel class: <http://msdn.microsoft.com/en-us/library/system.windows.forms.linklabel.aspx>

Sorry if I missed...
I think you should implement your own UserControl with the help of LinkLabel (ie. splitting the text to an array of words and use each one in a LinkLabel). Of course this is one way to do it. There's many ways to do it but I don't think there's an easy one.