title: Search in a text file from one symbol to another
body: <p>I am coding program, and stacked. Please can give me a code which search text in file from one specific symbol to another using C# visual Windows Forms , not console application. Like this text in textfile c:\id.txt</p>
  
  <blockquote>The entry was successfully copied to {ea4c4653-cc65-11e1-a2fc-001e101f4e71}.</blockquote>
  
  <p>search string from { to } , and result with { and }, without . at the end. And send found text in a message box.Code to search text in a file an send whole line in message box. But i need part of line.</p>