SqlDataAdapter .update Function not updating

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C#

SQL

I have One Table Call RSN_ALl in Sql database
, I want to Updates its few row by my XML file,based On RSN column Primary key.

I try By sqlcommnadBuilder and other way but its not updating.

Noted: In XMl file I have 2 or 3 rows which have Same "RSN" value as DataBase but other Columns Values are Different Which I need to Update
I Got Exception as

Update requires a valid InsertCommand when passed DataRow collection with new rows.

And When I use CommandBuilder I got Exception as

Violation of PRIMARY KEY constraint 'PK_RSN_All'. Cannot insert duplicate key in object 'dbo.RSN_All'.
The statement has been terminated.

but this Rows Already Present in Sql DataBase TAble

using (SqlConnection cn = new SqlConnection(SqlHelper.ConString))
{
   DataSet DsXmlData = new DataSet();
   DsXmlData.ReadXml(xml_file_path);
   DsXmlData.Tables["RSN_ALL"].PrimaryKey = new DataColumn[] { DsXmlData.Tables["RSN_ALL"].Columns["RSN"] };

   using (SqlDataAdapter da = new SqlDataAdapter("select * from RSN_All", cn))
   {
      DataSet ds = new DataSet();
      da.Fill(ds);

      // SqlCommandBuilder SqlcommBui = new SqlCommandBuilder(da);
      //string Command = SqlcommBui.GetUpdateCommand().CommandText;

      string updataCommand = "update RSN_All set Batch_M_id = @Batch_M_id ,Parent_RSN =@Parent_RSN, Pkg_Location =@Pkg_Location, CompanyId =@CompanyId where RSN =@RSN";
      SqlCommand cmd = new SqlCommand(updataCommand, cn);
      cmd.Parameters.Add("@Batch_M_id", SqlDbType.BigInt, 0, "Batch_M_id");
      cmd.Parameters.Add("@Parent_RSN", SqlDbType.VarChar, 20, "Parent_RSN");
      cmd.Parameters.Add("@Pkg_Location", SqlDbType.NVarChar, 100, "Pkg_Location");
      cmd.Parameters.Add("@CompanyId", SqlDbType.Int, 0, "CompanyId");
      cmd.Parameters.Add("@RSN", SqlDbType.VarChar, 20, "RSN");
      da.UpdateCommand = cmd;

      da.Update(DsXmlData.Tables["RSN_ALL"]);
   }
}