C#

Hi Experts,

I have a requirement to access a connected printer device through their embedded web server.
The device had an option to secure its details using username and password.
Once it is set, we can only communicate through "https" to that device.
Also there is windows credentials popup will come from UWP app once we initiate communication through https and wait for the user to enter the correct username and password as in web server.

My requirement is we need to pass those credentials as authorization header for a POST request to that device.

eg:-
Authorization: Basic YWRtaW46MTIzNDU2Nzg5


How to access those Windows credentials in UWP app. Without this authorization token, i am getting HTTP:401 unauthorized error for the POST request.


Please guide me to resolve this issue.


What I have tried:

I tried hard coding the username and password entered in the web server.

var username = usrName;
                   var password = pwd;
                   var base64String = Convert.ToBase64String(Encoding.ASCII.GetBytes($"{username}:{password}"));
                   _httpClient.AuthorizationHeader = new KeyValuePair<string, string>("Basic", base64String);


then in this case the POST request is successful.

Also tried the same in a separate test application. In that case after entering the credentials in the windows credentials popup the same POST request is again sending automatically with those credentials as Basic auth token.

Regards
Spk

Hello  experts
I have this behavior that I cannot figure it out.  The following code loops through and extracts some firewall settings.  It is triggered by a button

try
{

Type typeFWPolicy2 = Type.GetTypeFromProgID("HNetCfg.FwPolicy2");
INetFwPolicy2 fwPolicy2 = (INetFwPolicy2)Activator.CreateInstance(typeFWPolicy2);

foreach (INetFwRule rule in fwPolicy2.Rules)
	{
	lvItems.RuleName = rule.Name; ;
	lvItems.RemoteAddress = rule.RemoteAddresses;
	lvItems.Protocol = rule.Protocol.ToString();
	lvItems.LocalPort = rule.LocalPorts;
	dataGrid1.Items.Add(lvItems);
	//MessageBox.Show("close me");
}


}
catch (Exception ex)
{

MessageBox.Show("something went wrong");

}
When I run it, the datagrid is populated with the same record (only the first) entry that is repeated several times.
then I added a MessageBox to troubleshoot, then  Datagrid is populated correctly but I need to acknowledge each Messagebox !!!!.  It is like it just needs that extra mouse click.
any help is greatly appreciated  

var lstFilters = dbLinq.Price
                .GroupBy(g => g.Date.Year);

foreach (var group in lstFilters)
{
   foreach (var item in group) // here I get an exception regarding Command TimeOut. 
   {
      
   }
}

lstFilters.AsParallel().ForAll(chunks =>
{
      // what should I include here? 
});

try
           {


               //update button
               string cmd_query = "UPDATE [book_tbl] SET [Type_ID] = '@cmbtyp',[category] ='@cmbcat',[title] ='@title',[publisher_ID] ='@cmbpub', [A_ID] ='@cmbauthor',[first_name] ='@fname',[last_name]='@lname',[publication] ='@pub' where [ISBN] =@isbn";

               //parameters

               cmd.Parameters.AddWithValue("@cmbtyp", SqlDbType.Int).Value =cmbtyp.Text;
               cmd.Parameters.AddWithValue("@cmbcat", SqlDbType.VarChar).Value = cmbcat.Text;
               cmd.Parameters.AddWithValue("@title", SqlDbType.VarChar).Value = txtTitle.Text;
               cmd.Parameters.AddWithValue("@cmbpub", SqlDbType.Int).Value = cmbpub.Text;
               cmd.Parameters.AddWithValue("@cmbauthor", SqlDbType.Int).Value = cmbauthor.Text;
               cmd.Parameters.AddWithValue("@fname", SqlDbType.VarChar).Value = txtfname.Text;
               cmd.Parameters.AddWithValue("@lname", SqlDbType.VarChar).Value = txtlname.Text;
               cmd.Parameters.AddWithValue("@pub", SqlDbType.VarChar).Value = txtpub.Text;
               cmd.Parameters.AddWithValue("@isbn", SqlDbType.Int).Value=txtISBN.Text;
               con = new SqlConnection(ConnectionString);
               con.Open();
               //cmd = new SqlCommand();
               cmd = con.CreateCommand();
               cmd.CommandType = CommandType.Text;
               cmd.CommandText = cmd_query;
               cmd.ExecuteNonQuery();
               con.Close();

               MessageBox.Show("record updated successfully");
               //reset controls
               clear();
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
           }