}        //End exitToolStripMenuItem_Click (object, EventArgs)

        /// <summary>
        /// Handles the Click event of the PostfixGenButton control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void PostfixGenButton_Click(object sender, EventArgs e)
        {
            if (InfixTextBox.Text != String.Empty)
            {
                PostFix = new PostFix(InfixTextBox.Text);
                FileListBox.Items.Add(PostFix.InfixExpression);
                PostfixTextBox.Text = PostFix.PostFixExpession;
                PostFixs.Add(PostFix);
            }            //End if statement
            else
            {
                MessageBox.Show("Infix box empty");
            }    //End else statement
        }        //End PostfixGenButton_Click (object, EventArgs)
        }        //End aboutInfixToPostfixToolStripMenuItem_Click (object, EventArg)

        /// <summary>
        /// Handles the Click event of the inputInfixDataHereToolStripMenuItem control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void inputInfixDataHereToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try
            {
                FilePath = Utility.GetPath(OpenFileTitle, 0);
                FileData = Utility.LoadDataFile(FilePath);
            }            //End try-statement
            catch (Exception r)
            {
                MessageBox.Show(r.Message);
            }            //End catch-statement
            for (int i = 0; i < FileData.Count; i++)
            {
                PostFix = new PostFix(FileData [i]);
                PostFixs.Add(PostFix);
            }            //end for loop

            foreach (PostFix data in PostFixs)
            {
                FileListBox.Items.Add(data.InfixExpression);
            }    //end for-each loop
        }        //End inputInfixDataHereToolStripMenuItem_Click (object, EventArgs)