C#

public static void ReadDataGridViewSettings(System.Windows.Forms.DataGridView dgv)
       {
           XmlDocument xmldoc = new XmlDocument();
           XmlNodeList xmlnode;
           FileStream fs = new FileStream(Application.StartupPath + @"\MyGrid.xml", FileMode.Open, FileAccess.Read);
           xmldoc.Load(fs);
           xmlnode = xmldoc.GetElementsByTagName("Row");
               for (int i = 0; i <= dgv.Rows.Count; i++)
               {
                   int cellcolor = int.Parse(xmlnode[i].ChildNodes.Item(0).InnerText.Trim());
                   int textcolor = int.Parse(xmlnode[i].ChildNodes.Item(1).InnerText.Trim());
                   if (cellcolor != 0)
                   {
                       dgv.Rows[i].DefaultCellStyle.BackColor = Color.FromArgb(Convert.ToInt32(cellcolor));
                       dgv.Rows[i].DefaultCellStyle.ForeColor = Color.FromArgb(Convert.ToInt32(textcolor));
                   }
                   else
                   {
                       dgv.Rows[i].DefaultCellStyle.BackColor = Color.White;
                       dgv.Rows[i].DefaultCellStyle.ForeColor = Color.Black;
                   }
               }
           fs.Close();
       }

<dataGridView1>
<Row>
<CellColor>-677434</CellColor>
<TextColor>0</TextColor>
</Row>
<Row>
<CellColor>0</CellColor>
<TextColor>0</TextColor>
</Row>
</dataGridView1>

I am a student at WGU academy. The school is not bad for what it is considering price and goals. I am going for a bachelors in cybersecurity. I have no background experience in anything I.T. I have only ever been an automotive technician and fire sprinkler installer.

To start at the university, you need to have some prerequisites done at the academy to get accepted. 1 is English composition 101 and the other is Microsoft software development OR Microsoft database administration. I chose software development to learn c#. 

On this class, there are 7 topics to pass. 
Also on this class, you can access a forum where other students post their problems or solutions on the same course. In that forum, I noticed one of the topics were, "I have finished the 4th topic and still feel I don't know how to code alone without the examples." 
With that said, I am on the third topic and am having trouble understanding some of the verbiage and what it means. I have tried Youtube videos and other means. any advice on where to learn better or where can I find better coding practices?

If you guys have any feedback on this school too, let me know. 

second topic is all about object oriented programming. I am only having trouble with keywords like, "This", constructors, delegates and signatures.

please short I remember that when clicking in a cell that the corresponding date evening retrieve and store in a variable. I use a calendar layout like a tables or columns are dates and a column has several cells, I want when I click on a cell to get its corresponding date.
I program in c #