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How can I pass a variable through the query string from one listview to another?

Posted on 2009-04-09
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Last Modified: 2013-12-17
I have written a C# .Net web site using visual studio 2008. I have two pages, each containing a asp.net 3.5 listview control bound to a linqdatasorce. All I want to do is pass a variable from one listview to the other through the query string, is this possible?
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Question by:Shepwedd
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Expert Comment

by:spprivate
ID: 24107496
There are two way to do this.
When ever you want to go to next page form the querysring something like this.
Response.redirect ("../page2.aspx?param1="+listviewcontrol.selectedvalue;
In the other page
listview2.selectedvalue=Request.Querystring["param"].toString();

Or
Put the value in a Session. So Session["myval"]=istviewcontrol.selectedvalue;
in page 2
listview2.selectedvalue=Session["myval"].tostring();

Make sure in either cases check for null conditions
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Author Comment

by:Shepwedd
ID: 24108102
Using your first approach, on the second listview upon using my version of:

listview2.selectedvalue=Request.Querystring["param"].toString();

I get the error: cannot be assigned to, it is read only?

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Author Comment

by:Shepwedd
ID: 24108117
...and I was entering the code within my LinqDataSources OnSelecting event.
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Accepted Solution

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Shepwedd earned 0 total points
ID: 24136759
This solution is as simple as:

<asp:HyperLink runat="server" id="hlNavigate" NavigateUrl='<%#  "~/trustAccounts.aspx?Id=" + Eval("TrustID") %>' Text="Accounts" />
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