Formatting Column Cells based on Data Value

This example highlights the cell value in the DateTime column based on the day of week.

protected void C1GridView1_RowDataBound(object sender, C1.Web.Wijmo.Controls.C1GridView.C1GridViewRowEventArgs e)  
        {  
            if (e.Row.RowType == C1GridViewRowType.DataRow)  
            {  
                        DateTime dt = new DateTime(long.Parse(e.Row.Cells[1].Text) * 10000).AddYears(1969);  
                        if (dt.ToString("dddd") == "Monday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Red;  
                        }  
                        if (dt.ToString("dddd") == "Tuesday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Green;  
                        }  
                        if (dt.ToString("dddd") == "Wednesday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Yellow;  
                        }  
                        if (dt.ToString("dddd") == "Thursday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Blue;  
                        }  
                        if (dt.ToString("dddd") == "Friday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Orange;  
                        }  
                        if (dt.ToString("dddd") == "Saturday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Violet;  
                        }  
                        if (dt.ToString("dddd") == "Sunday")  
                        {  
                            e.Row.Cells[1].BackColor = System.Drawing.Color.Indigo;  
                        }  
                        }  
        }  

One important thing in the above code is that the Wijmo Gridview date column returns JSON string for cell's Text when 'e.Row.Cells[1].Text' is used .To parse this string in to Date object the formula used is : DateTime dt = new DateTime(long.Parse(e.Row.Cells[1].Text) * 10000).AddYears(1969);