C# - Pass Form Variables On To Second Postback?

Jan 20, 2011

Is it possible to postback to the server, perform a function, and then continue that postback on to an external place? (ie, to a payment system)(the scenario is clicking a button to place an order, mark it as sent, then send them off to the payment page (there are form variables that needs to be sent to the payment screen as well))


Pass Variables From One Page To Another

Jan 17, 2011

I want pass the current page variables to next page and further also.

How to do this?

I was able to handle this to next page by previous page variable property but not further.

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How To Pass Variables From One Page To Another

Jan 19, 2004

is there a way to pass variables from one page to another. I created one page where the user makes selections by ddl and textboxes. I want to be able to pass the selections to a second page of a datalist to display the results.

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Variables Dont Pass After They Are Out Of IDE?

May 8, 2009

Below is a snipit of code after the click event the variables are empty or are just not giving up the goods. The weird part is that when i would debug in VisStudio it worked fine but when I published it broke!!!

Label2.Text = var1;
Label5.Text = var2;
void OnClick(object sender, System.EventArgs

Label3.Text = var1;
Label4.Text = var2;

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How To Pass Multiple Variables Between Functions - C#

Aug 4, 2009

Below is a simple function called TestPass that passes a variable called intTestInt to the TestOutPut function. Now suppose that TestPass calculated two variables...one called "intTestInt" and another called "intTestIntTwo", how would I pass both variables from the TestPass function to the TestOutPut function??? What is the syntax used?



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Web Forms :: How To Pass Variables Between Includes

Sep 1, 2010

I have been reading up on this all day, and I can't find the answer (or more likely, don't understand the answers I have found) to my problem. I am completely new ASP.NET and trying to make a trasition from Classic ASP.

In classic ASP it was possible to 'pass' variables between include files. In ASP.NET includes are very different. I'll keep this simple:

I have 'header', 'content' and 'footer' pages. The header and footer are both 'includes' in the content page.

I want to be able to pass a variable from the header to the footer. Heres a snip of my code so far:




However this errors crops up in the footer when run:

Compiler Error Message: BC30451: Name 'helloworld' is not declared.

So how do I make this variable available to the pages involved??

I imagine there is more than one way of doing this for many circumstances.

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Pass Variables To Javascript Method From Code Behind

Jan 10, 2011

I am calling a javascript function from .cs file which is as below:

private string CallValuesScript()
StringBuilder sb = new StringBuilder();
sb.AppendLine("$(document).ready(function() {");
sb.AppendLine(" });");
return sb.ToString();

I have two integers declared at class level private int ratingLinkId = 0 ;

private int ratingValue = 0;

how I can pass these two integer values to the function "DisplayValues();" ? I have the javascript function is aspx as below:

function DisplayRatings(id, count) {

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How To Pass All The Local Variables In One Controller To View

Jan 16, 2011

In asp.net mvc3, I've got a few local variables in one of the controller, is there any neat way to pass all these variables to view? Something like "locals()" in python?

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Web Forms :: How To Pass Along String Variables To Function

Mar 14, 2011

I have never passed along variables to a function before. I have a function here that should return true or false.

My question is, how I do this in a realtime example. How do you pass along the 4 string variables to the function and see if cbValid is true or false ?


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SQL Reporting :: How To Pass Variables From SSIS To SSRS

Nov 26, 2009

I have reports invoked via SSIS packages using subscriptions.

Is it possible to pass variables from SSIS to SSRS?

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Pass Variables From Flash To .net And Vice Versa?

Jan 30, 2011

can i pass variables from flash to asp.net and vice versa? how do i do this?

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Ajax - Pass Session Variables To A Hyperlink?

Mar 3, 2011

finding " how to pass sesion variables to a hyperlink in asp.net "

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How To Access Variables In Postback

Mar 11, 2011

how do I access variables in a simple asp.net postback using either POST or GET?

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HttpHandlers / Modules :: Pass Two Variables To A Handler.ashx??

Jul 27, 2010

I have a gridview and in it is code to display an image


This works fine for pass one variable. but I need to send two variables 'ImageNum' and 'refID' to the Handler.ashx page, any ideas how, tried a few things in last few hours and as yet no joy!

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State Management :: How To Pass Session Variables From .net To Coldfusion

Sep 21, 2010

We are in the process of refactoring from cf to .net, so, I am working on the Login page and converting it from cf to .net. So, when I am autheticated and enter into our website, I need to redirect it to a cfm page (just temporary, since we will be refactoring that also eventually).

So, I am autheticated (using CustomMembership Provider model for sql server) and then when I redirect to the cfm, the app.cfm should validate the .net session variables. Here is where i am stuck:

I have the .net session variables in the aspx side:something like Session["UserId"].ToString() = Value from a login txt box (also authenticated against data in the database)

Session["UserName"].ToString() = Value from the db corresponding to the User Name entered in the text box.

So, now I have all the session variables in the .net side. Now, how do I retreive these .net session in the cf side? Any small peice of code to retrive the asp.net session variable in the application.cfm side would be great.

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Pass Multiple Variables Between Pages Doesn't Work?

Jan 11, 2009

I am trying to pass multiple variables between pages....

Page1.aspx (sending page)
Dim StrValue1 As String
Dim StrValue2 As String
StrValue1 = Server.UrlEncode(Value1)
StrValue2 = Server.UrlEncode(Value2).......

This does not work correctly. Page2.aspx is recieveing Value1 correctly but not Value2. I dont think I have the correct syntax... Have tried the redirect with an ampersand in the middle but that does not work either...

Response.Redirect("Page2.aspx?Value1=" & Value1 & "&?Value2=" & Value2)

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DataSource Controls :: Declare Variables And Pass Values In Vb?

Mar 6, 2010

I need to declare a variable xyz, then, using a select statement, pass a variable into it so I can then insert it into a table.

Dim @xyz As
set @xyz = (select xyz
from systable)

1. I get a squiggly line below the @.

2. I get informed that set and let are no longer supported.

3. When I remove the @ I get the squiggly below select.

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AJAX :: Sync Postback To Form With A Different URL / PORT When Form Contains ScriptManager / UpdatePanel?

Apr 14, 2010

I have a page with a ScriptManager / UpdatePanel. I currently need to PostBack to a https page from an http page (different ports). I also need the same session data. Currently, I copy my form to a new form, and when I postback to my new Target on a new Port, I get a crash in xmlHttp..something. I will have to post more details later.

I'm currently wondering if this is possible. And does anyone know of such a fix. I even tried to Turn off Partial Rendering and I still get crashes. I can't do this until I pull out the scriptManager / UpdatePanel.

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Session Variables Lost On Postback Using AJAX?

Jun 7, 2010

I'm evaluating using Ajax in a new project and so I've developed a simple web page to test a few things, however even the simplest task seems to cause my session to be cleared. I am using VS2008 with .Net 3.5 SP1 and the page is in my existing solution which has several custom handlers and modules in the web.config. Below is the code I'm using, it's a simple test which puts a variable into the session then on the buttons postback tries to get the same variable, however it always fails as the session is blank.

The Default.aspx code snippet
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" /> [code]....

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State Management :: Protect Variables On PostBack?

May 19, 2010

I have a slight delemma that I have not been able to work out.

My Scenario is:

Page_Loads > Calls Sub Random Data Retrieved from a Table - Displayed on screen & Sets Variables from Row(0) for an Insert Statement > Click Button to Insert those Variables.(essentially, the Insert Statement Parameters are Dynamic in that they change each time the page loads)

The Problem I am having, is that each time the page loads, I need a New DataSet, and the Page_Load is operating too quickly, changing my variables on postBack and ultimately, inserting the new values that are now loaded.

How can I:

Page_Loads > Get and Set the Variables I need > Protect Those Variables from changing on the Next Postback (so the insert statement gets the values Iwant to insert but also set and get the next ones)?

If Not Page.IsPostBack Doesnt Work for me in my Page_Load because each time the page.loads, I need those new Random Variables from a DataSet

Someone had Mentioned ViewState, but I am uncertain how to use it. I just want to protect the variables so that it inserts properly

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Passing Variables From One Web Form To Another

Jun 29, 2009

I have two web forms, home.aspx and account.aspx. home.aspx calls account.aspx via a hyperlink.I want to get info in a textbox and label in home.aspx and display them on the account.aspx. How do I go about it.

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Forms Data Controls :: Pass The Fields Values To The JavaScript Variables

Mar 13, 2010

i am still stcuk with my project and unabale to perform calculation on my edited gridview..

here is my problem :

i have fields (f1,f2,f3, f4...) pulled from my sql data base table. into a gridview.

the "f4" field value is based on some calculation done on f1, f2 & f3 field values..

1- i need to have the same calculation done when i edit and update f1, f2 & f3 on my gridview...

more complicated..

2 -my calculation are based on a javascript function ...

a- how can i pass the fields values to the JavaScript variables...perform the calculation....then reassign back the result varibale to the f4 field ?? ..then update my gridview with the new calculation..


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Forms Data Controls :: Pass 2 Different Public Variables To 2 Different Rows In GridView?

Feb 17, 2011

In my example below I am trying to Bind 2 different size GoogleAds to the 2 first rows in the GridView. One Ad on each row. The ads that are inside.......

(i2 == 0) and(i2 == 1).

I need to use <%if (Counts < 2) %> in HTML to restrict it to just 2 Rows, so this variable needs to be passed correctly also. As it is now, Counts is not passed correctly so <%if (Counts < 5) %> needs to be set in order to see any ads at all. I beleive this is because Page.DataBind() is binding the last ad in memory from the loop.

So when running this code, the same ad (i2== 2) is set to 3 rows in the GridView. This is my problem!


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Web Forms :: Pass Variable Form One Form To Another?

May 18, 2010

I want to pass the string input from a text boxe in Form1 to appear in a specfic textbox field in form2.

I'm trying to do it via HyperLink in the source form:


and this code in the destination form:


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Form.Request Not Getting Variables From POST?

Jul 22, 2009

This script is modified from the code on the paypal website. I'm getting the stream from paypal after a transaction (IPN-instant payment notification) and I receive the email.

Why don't the variables get written to my sql table? I'm using Request.Form but I'm not sure exactly what that does? StrFormValues stores the post from paypal. Does Request.Form retrieve the values from StrFormValues and store each value in the new variable?

Here's the code:



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Web Forms :: Form Submission - Get The Posted Variables

Jul 6, 2010

If I were using PHP I could submit a form to a new page, or the same page, and get the posted variables by doing something such as $_POST['txtVariable'], how do I do the same thing in ASP.NET? And is it possible to have more than one form per page?

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Making Global Variables Persist Through Page Postback (view Counter)?

Mar 24, 2004

This might be a silly question, but I have a global variable I have declared at the very beginning of my form class definition: Public Class TestWebForm Inherits System.Web.UI.Page Dim PowerOfTwo As Integer Dim Page_InitCount As Integer ... Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init Page_InitCount += 1 InitializeComponent() Dim POTLabel As New Label POTLabel.Text = Page_InitCount ... End Class Every time I post back the number displayed is 1. How do I store a value so that is persists throughout a session?

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C# - HttpWebRequest POST Adds A NULL Value To Form Variables

Jan 10, 2011

I am attempting to call a RESTful service using an HttpWebRequest object via POST. I am attempting to pass 1 variable with the Request body which contains a url encoded string. I see the request when it hits the server; however, it shows 2 form variables. The first is Form[null] and the second is my variable.I am attempting to locate the source of this NULL key; however, I cannot. Any ideas on how I may be able to remedy this since it's throwing issues when I attempt to use it with the Nancy web framework for .Net.


var request = WebRequest.Create("http://localhost:8888/RouteName") as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";[code]...

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Url Variables To Populate Form Fields And/or Auto Submit

Nov 12, 2010

I have a shortcut on my desktop to a login page for a website I use quite often. Every time I go there I have to reenter my user name and password.

The desktop URL shortcut I have is


I've tried adding the following changes


But this doesn't auto populate the fields on the website when it loads. Is there something special I need to do so the webpage will fill in the fields on the form?

Also bonus if I could just auto submit to login so I don't need the page to load and have me click "login" but I don't think that's possible... or is it?

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Security :: Form Based Authentication And Session Variables

Apr 19, 2010

I am using form based authentication in one of my website. I issue AuthenticationTicket on successful login and use this ticket to validate request. but now I need to store other variables immidiately after authenticating request (just like adding session for username, email etc. variable after successful login).

My question is if I make use of session to store variables, do I need to concern about it as form based authemtication is cookie based and it is not related with session timeout.

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Storing Querystring Variables In Hidden Form Elements In Masterpage?

Nov 6, 2009

I would like to store some querystring variables in hidden form elements on the masterpage and reference them from web user controls so that I can preserve the information and consolidate the code in one place...

However, I cannot seem to get access to the information from the web user controls....

I am using public variables on the masterpage to set and get the hidden form element data, e.g:


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Web Forms :: State Management - Session Variables - Search Form With Two Panels

Sep 4, 2009

I have a Search.aspx page with TWO ASP.NET panels as below. Search Panel :- Contains Search controls such as TextBoxes, DropDownList controls to accept search criteria and Search button. SearchResults panel: - Contains GridView to show Search results, New Search button and Refine Search button.

Functionality User enters Search criteria on Search Panel and selects Search button on Search panel. Search results are shown using GridView control on Search results panel. New Search button on Search results panel navigates the user to Search panel, so that user can start New search. Refine Search button should navigate the user to Search panel showing the latest search criteria entered. Example :- FirstName TextBox shows 'John'. Above functionality is achieved except Refine search button. Search.aspx code behind is shown below. Let me explain the logic / how i m trying to achieve the functionality.

On Search panel - Search button event i m storing Search criteria in Session variables. GetSearchResults() method returns data Table where Search criteria session values are passed as parameters in SQL query. As you notice in New Search button click event Session values are set to null and retrieved to Search.aspx , so Search panel is shown without any previous search criteria. Above methods works fine and functionality achieved except Refine Search button.

Functionality on Search results panel. It is important to explain the reason for below code in Search.aspx Page_Load() event. On Search results panel when Search results are shown using GridView, one of the columns i.e., View column navigates the user to UserView.aspx page by passing selected record ID in query string. UserView.aspx page contains Retrieve Search resutls button, when that button is pressed below code get executed


Above code redirects to Search.aspx page. I have below code in Page_Load() event of Search.aspx page. When the user clicks Retrieve Search results button on UserView.aspx, retrieve search results button click event transfers to Search.aspx page. In Page_Load() event of Search.aspx i m checking if any of the Session values are NOt Null and performing search again and showing the search results again. It is working fine.


Using below code works fine to meet all the requirements except Refine button on Search.aspx - Search results panel. Because when ever Refine button is selected Search.aspx - Page_Load() gets executed and If Session["value"] != null) gets executed, so search results are shown instead of showing Search panel with the search criteria entered.


how can I get Refine button work? I want to show the Search panel (Search.aspx) with the Search criteria stored in Session as you notice in abvoe code.

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C# - How To Pass An Array Of Structures Through Postback

Mar 23, 2011

I have the following structure:

private struct S_indiv
public int[] x;
public int s;
public S_indiv(int[] p1, int p2)
x = p1;
s = p2;
and array:
private static S_indiv[] ind;

How can I pass this array through Postback?

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Web Forms :: Pass Value To Page_Init On Postback?

Jul 28, 2010

I have a gridview control with some linkbuttons in.

When the linkbutton is pressed, i want the ID value attached to it, to be usually in the Page_Init where i need to create some dynamic controls, based on this ID.

But since the linkbutton's click event, is fired AFTER the Page_Init, this is a little hard for me to do.

How would i go about doing this, if it is even possible?

The reason behind, is that the linkbutton refers to a calendar event. Once clicked, it will list the details, but it will also list any comments, users have submitted about it. The dynamic controls i need to create, are delete buttons for the comments, so an admin can remove offensive comments.

All done on a single aspx page, with updatepanels (visible toggles, and populating labels). I would like to avoid sending users to another page, with a horrible ?id=6 link.

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2008 Pass Form Name To Another

Jul 22, 2010

In the WEB Application, there is a common FORM WebFrmDataShow.aspx which contains DataGridView control and comboxbox which contains the SQL SERVER Table names for the User to select to display the data on the DataGridView. It also contain this BEHINDCODE coding to allow the user to click and return to the calling Form.

<!-- Site navigation menu -->
<ul class="navbar">
<li><a href=" What Form Name">Previous Page</a>

There are a few other FORMs which contain almost similar code TO load WebFrmDataShow.apx:

<!-- Site navigation menu -->
<ul class="navbar">
<li><a href="WebFrmDataShow.aspx">Previous Page</a>

This FORM WebFrmDataShow.aspx when the user click on the Hyperlink I don't know which calling FORM to return to. SO HOW TO PASS THE CALLING FORM NAME TO THIS WEBFRMDATASHOW.ASPX?

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AJAX :: Pass Textfield Data To Code Behind Without Postback?

Dec 1, 2009

I'm new to these techniques and I want to use user input for filtering purposes in a bunch of gridviews without doing postbacks.

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How To Pass Values As Form Elements Or On Url

Feb 21, 2009

In a masterpage, I am assigning values x=2, y="test" on page_load. There is a <a hef="page2.aspx"> go to page 2 </a> in the master page. I want to assign x and y to form elements in the master page OR put them in the url like page2.aspx?x=2&y=test. I will have a sub page_load()...end sub in page2.aspx and want x and y available to it.

How do I get x and y as variable values in the script in page2 when sent as form elements? Same question but when they are sent in the url? For ex. response.write( what goes here ?) in form element case and in url case.

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State Management :: Pass Value To Another Form?

Aug 19, 2010

I have QuoteNumber filed in Db.aspx(ddquote.txt) i want to pass this QuoteNumber values(values should to another web form/page i.e. mail.aspx when i click mail button, Message should supposed to display in textbox(txtQuote.txt) of mail.aspx form/page is "You are sending "QuoteNumber" quotation to "MailID",

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Web Forms :: How To Pass Selected Value Of DropdownList To A User Control On Postback

Feb 25, 2010

I need to create a user control which will be loaded according to the selected value of a dropdownlist. The Dropdownlist is not the part of Control. I want to pass the value of selected value of dropdonwlist to my user control and the user control will load according to the Value. For not postback it work fine. But when the page is postback, that is when i select a item form dorpdownlist, the user control is not loaded.

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Onclick Event Pass Value To IFrame Form?

Jun 17, 2009

I have a page called "Search.aspx" that includes a repeater control which has a link within the repeater. The link uses fancyzoom to popup a hidden div, the hidden div uses an iFrame to call "form.aspx".

I need to pass a value pulled from the DB using <%#Container.DataItem("hotelName")%> to the "form.aspx" in the iFrame.

Here's my code so far:


<a href='#<%#Container.DataItem("id")%>' OnClick="LinkButton1_Click">More Info</a>


Protected Sub LinkButton1_Command(ByVal sender As Object, ByVal e As CommandEventArgs)
Dim hotelName As String = Request.Form("hotelName")
'do I convert hotelName to a Private Querystring?
End Sub


Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim hotelName As String = Request.QueryString("hotelName")
End Sub

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