Passing variables from classical ASP to ASP.NET

Discussion in 'ASP.NET / ASP.NET Core' started by wisemx, Jan 22, 2007.

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  1. wisemx

    wisemx

    If you don't want to use a query or session why not save the value in a database?


    Both asp and asp.net would have access to the record/value that way.
     
    wisemx, Jan 22, 2007
    #1
  2. sawtontape

    sawtontape

    Hello,

    I've been googling this issue for 2 days now and but I haven't found a satisfying answer, so here I am, basically I am looking to find a good way to send variables (non-session)from ASP page to ASP.NET page and display it in ASP.NET page...

    Now I also dont want to deal with querystrings, I do not want to have the values of these variables visiblein the address bar..

    So I figured I use a simple HTML form in ASP put the variables I want to send as hidden input type and post them using javascript to .aspx file like so:
    This is code from .asp file:
    Iftransferdn <> "" Then
    %>
    <form name="amt" method="POST" action="transferdn.aspx">
    <INPUT TYPE=hidden NAME=total VALUE=<%=total%>>
    </form>
    <script>document.forms[0].submit()</script>
    <%
    '(total is a previously defined variable, everything is working correctly here I think)

    And here is the line in .aspx file that receives this info:
    .
    .
    .

    <% Dim total as String
    total = Request.Form("total")
    %>
    .
    .
    .
    <td><asp:textbox id="totalamt" runat="server" width="144px"><%=total%></asp:textbox></td>

    and it gives me a parcer error on the line above, why? I dont know, but hopefully someone will help me out with this, I am not too familiar with ASP.NET so maybe there is just some tiny thing I am missing or maybe I am doing this completely wrong, I just dont know and searching this online has not been helpful so far, I am planning to pass quite a few variables this way so it's important for me to find a way to do this and if you know of any other ways of doing this better please let me know..

    Thanks in advance..
     
    sawtontape, Jan 22, 2007
    #2
  3. Bruce

    Bruce DiscountASP.NET Staff

    You should be able to use POST to pass variable between ASP / ASP.NET pages.


    A parser error usually means the code has some syntax issues. Can you post the exact error and the code?


    Bruce

    DiscountASP.NET
    www.DiscountASP.NET
     
    Bruce, Jan 22, 2007
    #3
  4. sawtontape

    sawtontape

    Hello, thank you for your responses,


    Yes I have thought about adding an extra table to my database just for this transaction, I guess that is one solution but because the information I am sending is user specific it would require much more codeto make sure the ASP.NET page retrives the right user information and as I mainly work with ASP and not ASP.NET I just dont know how to even access my database from ASP.NET so it will require even more time on my part to search for more solutions, but actually I am still thinking about this option, do you know if its more secure than doing a post?


    Although simply posting infromation to ASP.NET site is a lot easier I think [​IMG]I just wonder how secure it is?


    but even that is not working for me right now, well here is the code and the error message, I think I am very close to getting it to work but not close enough apparently...



    Server Error in '/BLACK' Application.


    Parser Error


    Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

    Parser Error Message: Code blocks are not supported in this context.

    Source Error:





    Code:
    Line 96: <tr>
Line 97: <td noWrap align="right">Amount:</td>
Line 98: <td><asp:textbox id="txtTransactionAmount" runat="server" width="144px"><%=total%></asp:textbox></td>
Line 99: </tr>
Line 100:<tr>
    Source File: /BLACK/icharge.aspx Line: 98






    Version Information:Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210


    And here is the asp code (the code file is very big and everything works besides this post thing so I am just going to put the code I added to make this work):
    Iftransferdn <> "" Then
    %>
    <form name="amt" method="POST" action="icharge.aspx">
    <INPUT TYPE=hidden NAME=total VALUE=<%=total%>>
    </form>
    <script>document.forms[0].submit()</script>
    <%

    And the error is generated on this asp.net file (once again everything in this file worked before I added the 'post' code):
    <%@ Page Language="c#" Inherits="ibpaspx.icharge" CodeFile="icharge.aspx.cs" %>
    <%@ Register Assembly="nsoftware.IBizPayWeb" Namespace="nsoftware.IBizPay" TagPrefix="cc1" %>
    <HTML>
    <HEAD>
    <title></title>
    <LINK href="stylesheet.css" type="text/css" rel="stylesheet">
    </HEAD>

    <% Dim total as String
    total = Request.Form("total")
    %>
    <form id="form" method="post" runat="server">
    ................................
    <td><asp:textbox id="txtTransactionAmount" runat="server" width="144px"><%=total%></asp:textbox></td>
    </tr>
    <tr>
    <td noWrap align="right">Description:
    </td>
    ................................

    Thanks in advance,
     
    sawtontape, Jan 23, 2007
    #4
  5. vvsharma

    vvsharma

    You cannot assign a value to an ASP.NET control using a code block.Instead, set the 'Text' property of the textbox control from within the '<script></script> ' and not '<% %> on your aspx page.

    Vikram

    DiscountASP.NET
    www.DiscountASP.NET
     
    vvsharma, Jan 23, 2007
    #5
  6. sawtontape

    sawtontape

    Alright, well basically after about5 hours of taking all the wrong turns with this and being frustrated I learned abit about how ASP.NET works and how my variables were not correctly defined on my ASP page.....
    But I finally figured it out and I wanted to share the code herewith you just in case anyone else will have the same problem...

    So the ASP code is:

    Function open_icharge(total)
    %>
    <form name="totalamount" method="POST" action="icharge.aspx" target = "_top">
    <INPUT TYPE=hidden NAME="total" ID = "total" VALUE="<%response.Write(total)%>">
    </form>
    <script>document.totalamount.submit()</script>
    <%
    End Function

    And ASP.NET code is (put this before HTML tag code):
    <script runat="server">
    void Page_Load()
    {
    txtTransactionAmount.Text = Request.Form["total"];
    }


    </script>


    /// and then put your text boxes for each parameter you want to post over


    <asp:textbox id="txtTransactionAmount" runat="server" width="144px"></asp:textbox>
    Thanks everyone for the responses, it feels good to be done with something[​IMG]
     
    sawtontape, Jan 24, 2007
    #6
  7. Bruce

    Bruce DiscountASP.NET Staff

    Bruce, Jan 24, 2007
    #7
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