c# - How to convert a string to a byte array

Convert string to byte array
convert-string-to-byte-array.aspx 

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<script runat="server">  
    protected void Button1_Click(object sender, System.EventArgs e)  
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        const string txt = "array examples";
        byte[] bytearray = Encoding.ASCII.GetBytes(txt);

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            Label1.Text += b + " = " + Convert.ToChar(b).ToString()+  "<br />";
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<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - convert string to byte array</title>  
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<body>  
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        <h2 style="color:DarkBlue; font-style:italic;">  
            c# example - convert string to byte array
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</body>  
</html>
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