What Should I Use For X And Y Value?

foreach (DataRow row in dt.Rows)
        {
            lstData.Add(new Tablelist() { FileName=csv,  process = row["process"] + "", Event = row["Event"] + "", status = row["status"] + "" });
 
        }
    }
        DataTable dtoutput = new DataTable();
       var columnNames =  lstData.Select(k => k.FileName).Distinct();
       foreach (string columnName in columnNames)       
           dtoutput.Columns.Add(columnName, typeof(string));
       DataRow newrowPassCount = dtoutput.NewRow();
         foreach (string columnName in columnNames) {
            int count = lstData.Where(k=> k.FileName == columnName).Count(k => k.status == "Pass");
            newrowPassCount[columnName] = count; 
        }
         dtoutput.Rows.Add(newrowPassCount);
 
         DataRow newrowFailCount = dtoutput.NewRow();
         foreach (string columnName in columnNames)
         {
             int count = lstData.Where(k => k.FileName == columnName).Count(k => k.status == "Fail");
             newrowFailCount[columnName] = count;
         }
         dtoutput.Rows.Add(newrowFailCount);
 
         gridview.datasource = dtoutput;
         gridview.databind();