how to send array by query string convert back into an array

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In 1.aspx

C#

string[] _array = new string[2];
_array[0]="field 1";
_array[1]="field 2";
Response.Redirect("2.aspx?file=" + _array);

In 2.aspx

C#

string[] _array;
_array = (string[])Request.QueryString["file"];

error:
Cannot convert type 'string' to 'string[]'

Posted 6-Dec-11 22:50pm

sufi2008123

Updated 6-Dec-11 23:01pm

Sergey Alexandrovich Kryukov

v3

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Sergey Alexandrovich Kryukov 7-Dec-11 5:03am

What's not clear in the error message?
--SA

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*Karthik Harve* · Answer 1 · 2011-12-06T23:00:00

I think you cannot pass string[] directly through query string.
instead try with session variable like this..

In Page 1

C#

string[] _array = new string[2];
_array[0]="field 1";
_array[1]="field 2";
Session["StrArray"] = _array;
Response.Redirect("2.aspx");

In Page 2

C#

string[] strArray = (string[])(Session["StrArray"]);

Hope this helps..

Eduard Lu · Answer 2 · 2011-12-06T23:03:00

Solution 3

In 2.aspx:

C#

string _string;
_string = (string)Request.QueryString["file"];

You are just pulling a string from the QueryString and not an array.

Regards,
Eduard

Posted 6-Dec-11 23:03pm

Eduard Lu

OriginalGriff · Answer 3 · 2011-12-06T22:58:00

If you must do that, then you will need to convert the string array into a single string and convert it back when you are done. The most obvious way is to use a separator character that does not appear in your string ("|" perhaps) and combine the array elements into a single string . You can then use String.Split to convert the string back to an array later.

how to send array by query string convert back into an array

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