del.icio.us Tags:
ASP.NET,
C#Hi there,
Here is an extension method for getting a value from the session in a safe manner.
1: static public bool TryGet<T>(this HttpSessionState session, string key, out T value) {
2:
3: bool flag = false;
4: value = default(T);
5:
6: if (session != null) {
7: object objectValue = session[key];
8: if (flag = (objectValue != null && objectValue is T)) value = (T)objectValue;
9: }
10:
11: return flag;
12: }
The usage is simple like:
1: bool flag;
2: if(this.Page.Session.TryGet<bool>("MyFlag", out flag)) {
3: // TODO value exists and can be used
4: }
Regards
Posted
10-09-2009 8:46
by
velio