How to view ASP.NET trace information

You can enable ASP.NET tracing either at an Application level or at a page level.

With the tracing enabled, you can view the trace output in a trace viewer by navigation to trace.axd from the root of your application. For example, if the URL of your application is http://localhost:11423/Website, then the trace viewer can be accessed at http://localhost:11423/WebSite1/trace.axd.

You can click on the “View Details” link of a requested page to see further information about that specific page.

To write to the trace output, you can add the statement Trace.Write(“This is an action in my page.”) into your code.

The trace request limit and whether the most recent tracing data is kept and shown in the viewer can be specified in the web.config file as follows:

<system.web>
<trace enabled=”true” mostRecent=”true”
pageOutput=”true” requestLimit=”20” />

Dynamic Create DataTable from Generic List using Reflection

I have few methods that returns different Generic Lists.But main thing here I am using Reflection to convert Generic List into Datatable.

public static DataTable ListToDataTable<T>(List<T> list)
      {
          DataTable dt = new DataTable();

          foreach (PropertyInfo info in typeof(T).GetProperties())
          {
              Type pt = info.PropertyType;
              if (pt.IsGenericType && pt.GetGenericTypeDefinition() == typeof(Nullable<>))
              {
                  pt = Nullable.GetUnderlyingType(pt);
                  dt.Columns.Add(info.Name, pt);
              }
              else
                  dt.Columns.Add(new DataColumn(info.Name, info.PropertyType));
          }
          foreach (T t in list)
          {
              DataRow row = dt.NewRow();
              foreach (PropertyInfo info in typeof(T).GetProperties())
              {
                  row[info.Name] = info.GetValue(t, null);
              }
              dt.Rows.Add(row);
          }
          return dt;
      }