C # Filters special characters, preserves Chinese, letters, numbers, and-

#region public static string Filterchar (string inputvalue) filters special characters, retaining Chinese, letters, numbers, and-
<summary>
Filter special characters, keep Chinese, letters, numbers, and-
</summary>
<param name= "Inputvalue" > Input string </param>
<remarks> send and receive detailed address this is the case: "No. 40-73 Cang Chang Road, Ying Yuan Village Four Square 69th, Room 202", this with-special characters do not need to filter out </remarks>
<returns></returns>
public static string Filterchar (String inputvalue)
{
Return Regex.Replace (Inputvalue, "[' [Email protected]#$^&* () =|{} ':; ', \\[\\].<>/?~! @#￥......&* () &mdash;|{} ""; /*-+]+ "," ", regexoptions.ignorecase);
if (Regex.IsMatch (Inputvalue, "[a-za-z0-9\u4e00-\u9fa5-]+"))
{
Return Regex.match (Inputvalue, "[a-za-z0-9\u4e00-\u9fa5-]+"). Value;
}
Return "";
}
#endregion

C # Filters special characters, preserves Chinese, letters, numbers, and-