vb.net - Accessing the key/value of a dictionary -

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how access key/value of dictionary? have code:

    try           if keystrokedictionary.containskey(letter)             keystrokedictionary.keys.equals(letter)         end if      catch ex exception         msgbox(ex.message)     end try     return letter

letter single letter gets passed in string value. keystrokedictionary dictionary information looks this:

{[65, 0]} {[66, 1]} {[67, 2]}

where key first number , value second number. since code isn't looking @ key/value right, it's not returning letter, , therefore not working.

.equals() not assignment operator, comparison function.

try 

letter = " ";  if keystrokedictionary.containskey(letter)    letter = keystrokedictionary.values(letter) end if  return letter

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