XML is displayed in one line problem

Question

I have the following Code to display Data from the Database in XML Document

public void generate_XML_AllTables(string Dir)
    {
        SqlDataReader Load_SP_List = null;  //SQL reader that gets list of stored procedures in the database
        SqlDataReader DataclassId = null;   //SQL reader to get the DataclassIds from tables

        SqlConnection conn = null;
        conn = new SqlConnection("Data Source= --SOME DATABASE--; persist security info=False;Trusted_Connection=Yes");

        SqlConnection conn_2 = null;
        conn_2 = new SqlConnection("Data Source= --SOME DATABASE--; persist security info=False;Trusted_Connection=Yes");

        SqlCommand getDataclassId_FromTables;

        int num_SP = 0, num_Tables = 0;
        string strDataClass;    //Name of table
        string sql_str;         //SQL command to get 

        conn.Open();

        //Selecting all Load Stored Procedures of CLNT & Get the table names
        // to pass the Load operation which generates the XML docs.
        SqlCommand cmd = new SqlCommand("Select * from sys.all_objects where type_desc='SQL_STORED_PROCEDURE' and name like 'CLNT%Load';", conn);
        Load_SP_List = cmd.ExecuteReader();

        while (Load_SP_List.Read())
        {
            //Gets the list of Stored Procedures, then modifies it
            //to get the table names
            strDataClass = Load_SP_List[0].ToString();
            strDataClass = strDataClass.Replace("CLNT_", "");
            strDataClass = strDataClass.Replace("_Load", "");
            sql_str = "select DataclassId from " + strDataClass;


            //Gets the DataclassID's from the tables then passes 
            //the parameters to the method Run_Load_StoredProcedure
            //(Table name, DataclassID)
            conn_2.Open();
            getDataclassId_FromTables = new SqlCommand(sql_str, conn_2);
            DataclassId = getDataclassId_FromTables.ExecuteReader();

            while (DataclassId.Read())
            {
                string test = DataclassId[0].ToString();
                Guid oRootGuid = new Guid(test);
                run_Load_StoredProcedure(strDataClass, oRootGuid, Dir);
                num_Tables++;
            }

            DataclassId.Close();
            conn_2.Close();
            num_SP++;
        }

        Load_SP_List.Close();
        conn.Close();
        System.Console.WriteLine("{0} of Stored Procedures have been executed and {1} of XML Files have been generated successfully..", num_SP,num_Tables);

    }

    public string run_Load_StoredProcedure(string strDataClass, Guid guidRootId, string Dir)
    {
        SqlDataReader rdr = null;

        SqlConnection conn = null;
        conn = new SqlConnection("Data Source= --SOME DATABASE--; persist security info=False;Trusted_Connection=Yes");
        conn.Open();

        // Procedure call with parameters
        SqlCommand cmd = new SqlCommand("CLNT_" + strDataClass + "_Load", conn);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.CommandTimeout = 0;

        //Adding parameters, in- and output
        SqlParameter idParam = new SqlParameter("@DataclassId", SqlDbType.UniqueIdentifier);
        idParam.Direction = ParameterDirection.Input;
        idParam.Value = guidRootId;

        SqlParameter xmlParam = new SqlParameter("@XML", SqlDbType.VarChar, -1 /*MAX*/ );
        xmlParam.Direction = ParameterDirection.Output;

        cmd.Parameters.Add(idParam);
        cmd.Parameters.Add(xmlParam);

        rdr = cmd.ExecuteReader(CommandBehavior.SingleResult);

        DirectoryInfo dest = new DirectoryInfo(Dir + "\\Backup");
        DirectoryInfo source = new DirectoryInfo(Dir);

        if (source.Exists == false)
        {
            source.Create();

            if (dest.Exists == false)
            {
                dest.Create();
            }
        }
        string xmlFile = @Dir + "\\" + strDataClass + " [" + guidRootId + "].xml";

        //The value of the output parameter ‘xmlParam’ will be saved in XML format using the StreamWriter.
        System.IO.StreamWriter wIn = new System.IO.StreamWriter(xmlFile, false);
        wIn.WriteLine(xmlParam.Value.ToString());
        wIn.Close();
        rdr.Close();

        conn.Close();

        return xmlFile;
    }

The problem the generated XML Files are all displayed in One Line. Can someone suggest an edit to make the XMLs in a normal Multi-line format?

EDIT

Here is an example of the generated XML

<CT_MilitaryUsers Version="1" DataSource="Source" ModDttm="2010-07-20T14:13:55.320" ModUser="EUADEV\A003893" ModuleOwner="EUADEVS06\SS2008" CreateDttm="2010-07-20T14:13:55.320" CreateUser="EUADEV\A003893">

  <CtMilitaryUsers DataclassId="8BA475CB-5582-481B-A3DE-099F4E59D323" EntityId="8BA475CB-5582-481B-A3DE-099F4E59D323" Name="CTP" IsExtMilUser="0" />

 </CT_MilitaryUsers><CT_MilitaryUsers Version="1" DataSource="Source" ModDttm="2010-07-    20T14:13:55.320" ModUser="EUADEV\A003893" ModuleOwner="EUADEVS06\SS2008" CreateDttm="2010-07-20T14:13:55.320" CreateUser="EUADEV\A003893"><CtMilitaryUsers DataclassId="8BA475CB-5582-481B-A3DE-099F4E59D323" EntityId="8BA475CB-5582-481B-A3DE-099F4E59D323" Name="CTP" IsExtMilUser="0"/></CT_MilitaryUsers>

it used to be displayed in one line but even now (after using the XDocument) it's still not well formatted

Answer 1

If the problem is that the source XML string does not include the neccesary formatting, you could load the XML into an XmlDocument and then use that to write to stream with formatting.

Here is a quick example.

  XmlDocument doc = new XmlDocument();
  doc.LoadXml(xmlParam.Value.ToString());

  using (StreamWriter wIn = new StreamWriter(xmlFile, false))
  using (XmlTextWriter wr = new XmlTextWriter(wIn))
  {
    wr.Formatting = Formatting.Indented;
    doc.WriteTo(wr); 
  }