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how to pass an array from one Web form to another in ASP.net with c#

Posted on 2009-05-06
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how to pass an array from one Web form to another in ASP.net with c#
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Question by:tatchis1
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by:cdebel
ID: 24320721
I would use Session variables...
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by:ALaRiva
ID: 24320732
If you are using Server.Transfer to go to the other page, then store it in the ViewState.

If you are not using Server.Transfer, then store it in the SessionState.

Make sure and remove it from the SessionState once you are done with it.

HTH
- Anthony
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by:cdebel
ID: 24320763
Here's how i would do it in VB.NET... i'm sure you can translate this quite easily:

        Dim arr(50) As String
        arr(1) = "Hello"
        arr(2) = "World"
        Session("MYARRAY") = arr
        Page.Response.Redirect("http://somewhere.com/myotherpage.aspx")

Then in your other page...
        ArrayFromOtherSite = Session("MYARRAY")

There's of course other methods like passing parameters after the URL like this:
http://somewhere.com/myotherpage.aspx?param1=Hello¶m2=World

but it's up to you...
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by:CJMilner
ID: 24321024
Serialize the array and then either:
- put it in the viewstate
- post it
- alter the postback url on a button click
- session vars
or querystring (if it's not too long)

Hope this helps

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Accepted Solution

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AsishRaj earned 500 total points
ID: 24322267
Well it simple - cdebel has given you the easiest way out
Populate your array
then save your array into the session
    Session("sessionArrayName") = yourArray;

go to which ever page you want

Declare a new array

string[] newarray = new string[arraysize];

newarray = Session("sessionArrayName") ;
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Author Comment

by:tatchis1
ID: 24325184
I want to pass my parmeter using this method but I'm receiving an error.

Response.Redirect("CondemnedStockSummary.aspx?Value1" = txtStart.Text);
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Expert Comment

by:CJMilner
ID: 24325201
Move the equals inside the string and add a + to the end of the string to concatenate the variable with the string. Like this

Response.Redirect("CondemnedStockSummary.aspx?Value1=" + txtStart.Text);
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Author Comment

by:tatchis1
ID: 24325706
Can I do more than one parameters with this method?
Response.Redirect("CondemnedStockSummary.aspx?Value1=" + txtStart.Text);
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by:cdebel
ID: 24330932
tatchis1: please, next time that you ask a question and get correct answers from people, don't accept a single answer as you did.  

And about your last comment, check my comment #24320763 ... the answer is already there!
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by:cdebel
ID: 24330951
its especially frustrating when the person who is marked as having the good answer says:
"Well it simple - cdebel has given you the easiest way out is to..."
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by:AsishRaj
ID: 24349739
I agree, i will post Free Points For You Shortly
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by:AsishRaj
ID: 24349756
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by:cdebel
ID: 24351193
All what the askers have to do is to press the "REQUEST ATTENTION" button if my memory is good, then ask to split the points and the manager of this zone will help.

The important thing is that the asker understand how to do splits points for next time because if he keep doing this, people might refuse to answer him.  (same if he give a grade E to someone who gave a good answer too).
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