Hello All,
I have a 2-dimensional array that I am storing as a session variable. I have
no idea on how I can cast the session variable back to 2-dimensional array.
Any pointers?
Reference code below...
Array declaration:
DateTime[][] DateRangesForDataLists = new DateTime[5][];
Sample element population:
DateRangesForDataLists[0] = new DateTime[2];
DateRangesForDataLists[0][0] = System.DateTime.Today;
DateRangesForDataLists[0][1] = new
DateTime(System.DateTime.Today.Year,System.DateTim e.Today.Month,1);
Storing in session:
Session["DataListStartEndDates"] = DateRangesForDataLists;
Trying to access from session:
private DateTime GetDateFromSession(int FirstIndex, int SecondIndex)
{
DateTime[,] DateRangesForDataLists = new DateTime[5,2];
DateRangesForDataLists = (DateTime[,])Session["DataListStartEndDates"];
return DateRangesForDataLists[FirstIndex,SecondIndex];
}
And in the above method it is giving me an error: "Specified cast is not
valid." What am I doing wrong?
Thanks for your help!! 5 3849
Try:
DateTime[][] DateRangesForDataLists =
(DateTime[][])Session["DataListStartEndDates"];
karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"Diffident" <Di*******@discussions.microsoft.com> wrote in message
news:BA**********************************@microsof t.com... Hello All,
I have a 2-dimensional array that I am storing as a session variable. I have no idea on how I can cast the session variable back to 2-dimensional array. Any pointers?
Reference code below...
Array declaration: DateTime[][] DateRangesForDataLists = new DateTime[5][];
Sample element population: DateRangesForDataLists[0] = new DateTime[2]; DateRangesForDataLists[0][0] = System.DateTime.Today; DateRangesForDataLists[0][1] = new DateTime(System.DateTime.Today.Year,System.DateTim e.Today.Month,1);
Storing in session: Session["DataListStartEndDates"] = DateRangesForDataLists;
Trying to access from session: private DateTime GetDateFromSession(int FirstIndex, int SecondIndex) { DateTime[,] DateRangesForDataLists = new DateTime[5,2] DateRangesForDataLists = (DateTime[,])Session["DataListStartEndDates"]; return DateRangesForDataLists[FirstIndex,SecondIndex]; }
And in the above method it is giving me an error: "Specified cast is not valid." What am I doing wrong?
Thanks for your help!!
Nope, it gives me the same error message.
When you observe my code, I declared the array as a jagged array but while
retrieving I am casting it to a normal 5x2 array.....is that the problem?
How can I cast it into a jagged array?
"Karl Seguin [MVP]" wrote: Try:
DateTime[][] DateRangesForDataLists = (DateTime[][])Session["DataListStartEndDates"];
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"Diffident" <Di*******@discussions.microsoft.com> wrote in message news:BA**********************************@microsof t.com... Hello All,
I have a 2-dimensional array that I am storing as a session variable. I have no idea on how I can cast the session variable back to 2-dimensional array. Any pointers?
Reference code below...
Array declaration: DateTime[][] DateRangesForDataLists = new DateTime[5][];
Sample element population: DateRangesForDataLists[0] = new DateTime[2]; DateRangesForDataLists[0][0] = System.DateTime.Today; DateRangesForDataLists[0][1] = new DateTime(System.DateTime.Today.Year,System.DateTim e.Today.Month,1);
Storing in session: Session["DataListStartEndDates"] = DateRangesForDataLists;
Trying to access from session: private DateTime GetDateFromSession(int FirstIndex, int SecondIndex) { DateTime[,] DateRangesForDataLists = new DateTime[5,2] DateRangesForDataLists = (DateTime[,])Session["DataListStartEndDates"]; return DateRangesForDataLists[FirstIndex,SecondIndex]; }
And in the above method it is giving me an error: "Specified cast is not valid." What am I doing wrong?
Thanks for your help!!
"Diffident" <Di*******@discussions.microsoft.com> wrote in message
news:BA**********************************@microsof t.com... Hello All,
I have a 2-dimensional array that I am storing as a session variable. I have no idea on how I can cast the session variable back to 2-dimensional array. Any pointers?
Reference code below...
Array declaration: DateTime[][] DateRangesForDataLists = new DateTime[5][];
Hmm, that isn't a 2-dimensional array...rather an array of arrays...thought
I'd point that out. A two dimensional array would be defined as DateTime[,]
DateRangesForDataLists, would it not? I may be wrong, haven't dealth with
2-dimensional arrays in a long time in C#....in VB.Net, though, DateTime()()
is considered an array of arrays and DateTime(,) is 2-dimensional...
Check it out, remember, I am hardly ever correct in my assumptions... :)
Especially, this early in the morning...
Mythran
how is it declared? why can't you cast it as it is declared? post some code
if you still need help.
--
Regards,
Alvin Bruney [MVP ASP.NET]
[Shameless Author plug]
The Microsoft Office Web Components Black Book with .NET
Now Available @ www.lulu.com/owc
Forth-coming VSTO.NET - Wrox/Wiley 2006
-------------------------------------------------------
"Karl Seguin [MVP]" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME
net> wrote in message news:#G**************@TK2MSFTNGP12.phx.gbl... Try:
DateTime[][] DateRangesForDataLists = (DateTime[][])Session["DataListStartEndDates"];
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"Diffident" <Di*******@discussions.microsoft.com> wrote in message news:BA**********************************@microsof t.com... Hello All,
I have a 2-dimensional array that I am storing as a session variable. I have no idea on how I can cast the session variable back to 2-dimensional array. Any pointers?
Reference code below...
Array declaration: DateTime[][] DateRangesForDataLists = new DateTime[5][];
Sample element population: DateRangesForDataLists[0] = new DateTime[2]; DateRangesForDataLists[0][0] = System.DateTime.Today; DateRangesForDataLists[0][1] = new DateTime(System.DateTime.Today.Year,System.DateTim e.Today.Month,1);
Storing in session: Session["DataListStartEndDates"] = DateRangesForDataLists;
Trying to access from session: private DateTime GetDateFromSession(int FirstIndex, int SecondIndex) { DateTime[,] DateRangesForDataLists = new DateTime[5,2] DateRangesForDataLists = (DateTime[,])Session["DataListStartEndDates"]; return DateRangesForDataLists[FirstIndex,SecondIndex]; }
And in the above method it is giving me an error: "Specified cast is not valid." What am I doing wrong?
Thanks for your help!!
I'm not sure why my code doesn't work, this code compiles fine for me:
DateTime[][] DateRangesForDataLists = new DateTime[2][];
DateRangesForDataLists[0] = new DateTime[2];
DateRangesForDataLists[0][0] = DateTime.Today;
DateRangesForDataLists[0][1] = DateTime.Today.AddYears(1);
DateRangesForDataLists[1] = new DateTime[3];
DateRangesForDataLists[1][0] = DateTime.Today;
DateRangesForDataLists[1][1] = DateTime.Today.AddYears(1);
DateRangesForDataLists[1][2] = DateTime.Today.AddYears(2);
object o = DateRangesForDataLists;
DateTime[][] back = (DateTime[][])o;
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"Diffident" <Di*******@discussions.microsoft.com> wrote in message
news:DB**********************************@microsof t.com... Nope, it gives me the same error message.
When you observe my code, I declared the array as a jagged array but while retrieving I am casting it to a normal 5x2 array.....is that the problem?
How can I cast it into a jagged array?
"Karl Seguin [MVP]" wrote:
Try:
DateTime[][] DateRangesForDataLists = (DateTime[][])Session["DataListStartEndDates"];
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"Diffident" <Di*******@discussions.microsoft.com> wrote in message news:BA**********************************@microsof t.com... > Hello All, > > I have a 2-dimensional array that I am storing as a session variable. I > have > no idea on how I can cast the session variable back to 2-dimensional > array. > Any pointers? > > Reference code below... > > Array declaration: > DateTime[][] DateRangesForDataLists = new DateTime[5][]; > > Sample element population: > DateRangesForDataLists[0] = new DateTime[2]; > DateRangesForDataLists[0][0] = System.DateTime.Today; > DateRangesForDataLists[0][1] = new > DateTime(System.DateTime.Today.Year,System.DateTim e.Today.Month,1); > > Storing in session: > Session["DataListStartEndDates"] = DateRangesForDataLists; > > Trying to access from session: > private DateTime GetDateFromSession(int FirstIndex, int SecondIndex) > { > DateTime[,] DateRangesForDataLists = new DateTime[5,2] > DateRangesForDataLists = (DateTime[,])Session["DataListStartEndDates"]; > return DateRangesForDataLists[FirstIndex,SecondIndex]; > } > > And in the above method it is giving me an error: "Specified cast is > not > valid." What am I doing wrong? > > > Thanks for your help!! > This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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