SqlCommand with Entity Framework

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C#

SQL-Server

ASP.NET4

I am using Entity framework to execute sql query using entity framework and Successfully executed using

context.Database.ExecuteSqlCommand(strt)  

It takes sql query, now i want to execute sqlcommand using entity framework. How i can do it?

My Code Is Below

while (reader.Read())
               {
                   StringBuilder MyStringBuilder = new StringBuilder("Insert into " + Tablename + "(");
                   StringBuilder CopyString = new StringBuilder("Insert into " + Tablename + "_Temp (");

                   for (int k = 1; k < validList.Count; k++)
                   {
                       MyStringBuilder.Append("@" + validList[k].ToString()).Append(",");
                       CopyString.Append("@" + validList[k].ToString()).Append(",");
                   }

                   MyStringBuilder.Remove(MyStringBuilder.Length - 1, 1);
                   CopyString.Remove(CopyString.Length - 1, 1);

                   MyStringBuilder.Append(")");
                   CopyString.Append(")");

                   SqlCommand MountCmd = new SqlCommand(MyStringBuilder.ToString(),Mcon);

                   ParamArrayAttribute
                   for (int a = 1; a < validList.Count; a++)
                   {
                       s = reader[a].ToString();
                       MountCmd.Parameters.AddWithValue("@"+validList[a].ToString()+"", s);
                   }
                   try
                   {
                       context.Database.ExecuteSqlCommand();       //here i am trying to excute SqlCommand Object MountCmd
                   }
                   catch (Exception)
                   {
                       context.Database.ExecuteSqlCommand();
                   }
               }