C#

using System;
using System.Windows.Forms;

namespace ValuePassing
{
    public class FormParent : Form
    {
        public FormParent()
        {
            Shown += new EventHandler(FormParent_Shown);
        }

        void FormParent_Shown(object sender, EventArgs e)
        {
            FormChild formChild = new FormChild();
            formChild.ValueChanged += new EventHandler<ValueChangedEventArgs>(formChild_ValueChanged);
            formChild.VisibleToParentMethod(100);
            formChild.VisibleToParentProperty = 200;
        }

        void formChild_ValueChanged(object sender, ValueChangedEventArgs e)
        {
            Text = (string.Format("Value = {0}", e.Value));
        }
    }

    public class FormChild : Form
    {
        public event EventHandler<ValueChangedEventArgs> ValueChanged;

        private int visibleToParentValue;

        public int VisibleToParentProperty
        {
            get { return visibleToParentValue; }
            set
            {
                MessageBox.Show("Property");
                SetVisibleToParentValue(value);
            }
        }

        public void VisibleToParentMethod(int value)
        {
            MessageBox.Show("Method");
            SetVisibleToParentValue(value);
        }

        private void SetVisibleToParentValue(int value)
        {
            if (visibleToParentValue != value)
            {
                visibleToParentValue = value;
                OnVisibleToParentValueChanged(new ValueChangedEventArgs(value));
            }
        }

        protected virtual void OnVisibleToParentValueChanged(ValueChangedEventArgs e)
        {
            EventHandler<ValueChangedEventArgs> eh = ValueChanged;
            if (eh != null)
                eh(this, e);
        }
    }

    public class ValueChangedEventArgs : EventArgs
    {
        public ValueChangedEventArgs(int value)
        {
            Value = value;
        }
        public int Value
        {
            get;
            private set;
        }
    }
}

<br />
            string word = "fdffd";<br />
            foreach (char c in word)<br />
            {<br />
                byte b = Convert.ToByte(c);<br />
                if ((int)b > 65 && (int)b < 90)<br />
                {<br />
                    // Upper case ASCII letter<br />
                }<br />
                else if ((int)b < 97 || (int)b > 122)<br />
                {<br />
                    // lower case ASCII letter<br />
                }<br />
                else<br />
                {<br />
                    word.Replace(c.ToString(), string.Empty);<br />
                }<br />
           }<br />

MarkBrock wrote:

Convert each character into a byte