Issue in CSV loading to Silverlight datagrid

<sdk:DataGrid  Name="dgrIncidents"   AutoGenerateColumns="False"  HeadersVisibility="All"
                                                RowBackground="Cornsilk" AlternatingRowBackground="LemonChiffon"
                                                 IsReadOnly="True" CanUserResizeColumns="True" GridLinesVisibility="All">
                            <sdk:DataGrid.Columns>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Reported Date" Binding="{Binding Reported_Date}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Incident ID" Binding="{Binding Incident_ID}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Closed Date" Binding="{Binding Closed_Date}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Last Resolved Date" Binding="{Binding Last_Resolved_Date}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Assigned Group" Binding="{Binding Assigned_Group}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Assignee" Binding="{Binding Assignee}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Status" Binding="{Binding Status}"/>
                                <sdk:DataGridTextColumn CanUserReorder="True" CanUserResize="True" CanUserSort="True" Width="Auto" Header="Summary" Binding="{Binding Summary}"/>
                            </sdk:DataGrid.Columns>
                        </sdk:DataGrid>

void lFnLoadDataInGrid()
        {
            try
            {
                lFnStartWait();
                dgrIncidents.ItemsSource = lFnLoadCSVDataInGrid();
                lFnStopWait();
            }
            catch (Exception)
            {

                throw;
            }
        }


        List<clsGridLoadExcelData> lFnLoadCSVDataInGrid()
        {
            try
            {
                if (Prp_Opendialogue.File == null)
                {
                    lFnShowPopupErr("Please select CSV file");
                    return null;
                }

                List<clsGridLoadExcelData> lArrObjclsGridLoadExcelData = new List<clsGridLoadExcelData>();

                StreamReader lObjStreamReader = new StreamReader(Prp_Opendialogue.File.OpenRead());

                bool lBlnIsColumnRow = true;

                while (lObjStreamReader.Read() != null)
                {
                    string lStrLine = lObjStreamReader.ReadLine();

                    if (lBlnIsColumnRow)
                    {
                        lBlnIsColumnRow = false;
                        continue;
                    }

                    if (lStrLine == null)
                        break;

                    if (lStrLine.Trim() == "")
                        continue;

                    string[] lArrStrCells = null;

                    lArrStrCells = lStrLine.Split(",".ToCharArray());

                    if (lArrStrCells == null)
                        continue;

                    if (!(lArrStrCells.Length == 8))
                        continue;

                    clsGridLoadExcelData lObjclsGridLoadExcelData = new clsGridLoadExcelData();

                    lObjclsGridLoadExcelData.Reported_Date = lArrStrCells[0];
                    lObjclsGridLoadExcelData.Incident_ID = lArrStrCells[1];
                    lObjclsGridLoadExcelData.Closed_Date = lArrStrCells[2];
                    lObjclsGridLoadExcelData.Last_Resolved_Date = lArrStrCells[3];
                    lObjclsGridLoadExcelData.Assigned_Group = lArrStrCells[4];
                    lObjclsGridLoadExcelData.Assignee = lArrStrCells[5];
                    lObjclsGridLoadExcelData.Status = lArrStrCells[6];
                    lObjclsGridLoadExcelData.Summary = lArrStrCells[7];

                    lArrObjclsGridLoadExcelData.Add(lObjclsGridLoadExcelData);
                }

                lObjStreamReader.Close();
                lObjStreamReader.Dispose();

                return lArrObjclsGridLoadExcelData;
            }
            catch (Exception ex)
            {
                lFnShowPopupErr(ex.Message.ToString());
                return null;
            }
        }

   class clsGridLoadExcelData
        {


            public string Reported_Date { get; set; }
            public string Incident_ID { get; set; }
            public string Closed_Date { get; set; }
            public string Last_Resolved_Date { get; set; }
            public string Assigned_Group { get; set; }
            public string Assignee { get; set; }
            public string Status { get; set; }
            public string Summary { get; set; }



        }