[C #] replaces characters/strings based on index

Key code:

        #regionReplace characters by index// <summary>        /// Replace characters by index        ///<para>eg:assert.areequal ("Zbcdefghij", Stringhelper.replaceat ("Abcdefghij", 0, ' Z '));</para>         // </summary>        /// <param name= "Data" > Strings to be manipulated </param>        // <param name= "index" > Target index </param>        /// <param name= "Replace" > Replace with characters </param>        // <returns> string after operation </returns>         Public Static stringReplaceat ( This stringDataintIndexCharReplace) {StringBuilder _builder =NewStringBuilder (data); _builder[index] = replace;return_builder.        ToString (); }#endregion        #regionReplace a string based on an index// <summary>        /// Replace string with index        ///<para>eg:assert.areequal ("Zxcdefghij", Stringhelper.replaceat ("Abcdefghij", 0, 2, "ZX")); </para >        // </summary>        /// <param name= "Data" > Strings to be manipulated </param>        // <param name= "index" > Target index </param>        // <param name= "Length" > Need to replace length </param>        /// <param name= "Replace" > Replace with string </param>        // <returns> string after operation </returns>         Public Static stringReplaceat ( This stringDataintIndexintLengthstringReplace) {StringBuilder _builder =NewStringBuilder (data); _builder.            Remove (index, length); _builder. Insert (index, replace);return_builder.        ToString (); }#endregion

Hope to be helpful!

[C #] replaces characters/strings based on index