I've been developing classic ASP pages at the job for the past five years and now we are moving to ASP.NET. I'm trying to understand how to get form field values from one page to another and it seems like there is more than one way to do it. In classic ASPI just called request.form collection and got the information. Which way is recommended in .net? Cross Page, Transfer, or HttpRequest?
View 1 RepliesI am trying to pass a value between two pages. However on my target page, the value is not found. My source page includes the following code.
Public ReadOnly Property SQLString() As String
Get
Return "SELECT * FROM City"
End Get
End Property
On my target aspx page I have included the following directive:
<%@ PreviousPageType VirtualPath="~/tools/SearchResults.aspx"%>
In the target page code behind I have included the following in the page load:
Me.Master.Page.PreviousPage.SQLString
However, Visual studio complains that, SQLString is not a member of System.Web.Ui.page. I must note I am useing master pages, and vaguely recall this causing an issue when accomplishing this in the past.
I use a Custom Validator (which validates on the server) and a button (it's PostbackUrl = "Page2.aspx").
When I press the button the browser show always Page2 without checking if the page is valid.
I have 2 forms and i want to pass data to the second from the first. All i get is null value or nothing. In the first page i have :
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Before response i check the value and it's "7" Then on my second page i have. on page load, or on a button. Dim s As String = Request.Form("CurrentId") I have also tried with putting on markup:
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I am doing project in asp.net(3.5),c#.net and sqlserver2005 I am using cross page posting property from reviewsubmit.aspx page to principalauthentication.aspx, and to get the values to other page i am using get propery, here the problem is when i am posting details to other page from there i am submitting to db. if both users logged in at a time and submitted, second submitted user previouspage values coming as first submitted previous page values. what should i do, how can i resolve
View 5 RepliesI have a form with 4 dynamically TextBoxes. I have a Button with PostBackUrl set to another form. In that form I am trying to access the Dynamic TextBoxes using Page.PreviousPage.FindControl("PlaceHolder1").Controls.ofType<TextBox>(). But I am unable to access the dynamically created textboxes.Am I doing something wrong or is it a Limitation?
View 3 RepliesI have a user control where is a textbox and button with PostBackUrl="two.aspx". This user control I have on a page one.aspx. When I click that button, on two.aspx I want to have access to the textbox from ascx control. PreviousPage.FindControl doesn't work. How to do that?
View 3 RepliesI'm trying to pass post data from one page to the next but PreviousPage always equals null.This is what I have in the original page (inside an updatepanel
<asp:Button ID="mmGo" runat="server" Text="Merge" PostBackUrl="~/Default2.aspx?action=merge"/>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<%@ PreviousPageType VirtualPath="~/Default.aspx" %>
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I am tring to send form values to a page from a user control. I included the user control in a master page.When i use page.previouspage it can not get value. is there any way to send form data to a page from a user control included in a master page?
View 5 RepliesI'm working on a wizard-like set of page, and I'm relying on cross page postbacks to navigate between them.
I need to be able to trigger the Load event on the previous page in order to save the form data for the page.
I've been told that for situations of this sort all I had to do is access the PreviousPage property in the destination page and this would trigger the load event of the previous page but for some reason this doesn't seem to be working.
Is there anything else I can do to explicitly trigger the load event on the previouspage if the PreviousPage property is not null?
I have a FileUpload control in the Source page. On the Upload button handler, I read the file into memory (after doing some validations) and since it's always going to be a TXT file, I create a string that I need to pass to the Destination page. I thought of using Cross Page postback and set the PostBackUrl property of the upload button. But it appears that the breakpoint in the Upload button handler is never hit. It directly goes to the Page_Load in the Destination page. If I can't use Cross Page postback and don't want to use Session or the database, how do I pass this string from Source page to the Destination page?
View 2 RepliesIs it possible to use cross-page postbacks (or a similar method, perhaps Server.Transfer) to post form data (say, Data-set A) to a page, which then allows the user to add some additional information (say, Data-set B) and then postback to the original page the complete set of data (A+B) which then flows through the normal event execution process, similar to as if all data A+B was submitted on the original page to itself in a normal postback?
I don't want the second page to have any type knowledge of the original page, it just needs to supply two additional feeds and send the data on. This way different pages and controls could use this method for gaining additional data.
For example:
Page 1 could have a form with various text inputs, and two hidden fields Hidden1 + Hidden2 which are empty.
When the form on page 1 is submitted the user is presented with page 2, they complete that page and then all the form data from page 1 is posted back to page 1 but with the hidden fields 1 + 2 complete. Page 1 then has all the information it needs to complete.
I'm thinking that perhaps page 2 just needs to use PreviousPage and take its post data, add to it and then post it back to page 1, but as if it came from Page 1 and not Page 2. But I'm not sure if this is possible and ASP.NET might read this as tampered data?
I have an interesting issue I have racked my brain trying to find a solution to.
I have a site with a single master page. Part of that master page is a text field and button. They are not part of a content placeholder, they are simply part of the master page, itself, and are intended to allow people to search the site from any page on the site.
So, all search requests are routed to a search.aspx page, regardless. I am doing this by setting the PostBackUrl attribute of the button control to "search.aspx".
This all works great, except when I try to use this search capability from the search.aspx page, itself. I figure this is because I am using the Page.PreviousPage object and since a postback from the search.aspx page, itself will result in the Page.PreviousPage being Nothing, it is not performing the proper action.
I have vertical image slidslow using datalist. on left side i have vertical scrolling thumbnail items. if we click the thumbnail i need to load all
related fullsize images on right side of the thumbnail. i need to load all full size images without posting the page.coz if i post the page my thumbnail images position get reset and starts from begining. so i need to avoid this.
I Have two pages source.aspx and target.aspx. Source.aspx has one button and other form controls the collect input. The button has its postbackurl property set to target.aspx. On target.aspx I have another button and other form controls that collect input. When the user clicks on the target.aspx button, I want the inputs from both source and target gathered to be inserted into the database. The problem is the Page.PreviousPage property is only available during the initial rendering of the target.aspx page. So when I click on target.aspx button, PreviousPage is now null.
One strategy of mine is to collect the information on page_load and store it in ViewState, but is there any other method that I should consider in this process. I think the cleanest approach would be to somehow access PreviousPage on the button_click event handler, but how can I access this property.
I am trying to do a cross page postback and in the target page I am trying to reference a usercontrol.this my user control class declaration.
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this how I try to reference it in the target paget:
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It will not compile and the problem I get or the error I get is: Error 79 Type 'BCWeed.GetADeal.UI.PurchaseCartAJAX' is not defined. D:ills systemBills Desktop estSocialmypurchase.aspx.vb 7 29 D:...Social
I'm writing unit tests in ASP.NET 4.0 web application (ASP.NET Forms, not MVC). There are several spots in the code where I call the ServerVariables collection to call variables like REMOTE_ADDR. Since my unit tests do not actually initiate HttpRequests when executing my code, things like ServerVariables are Null and therefore error when I try to call HttpContext.Current.Request.ServerVariables("REMOTE_ADDR")
All the solutions I've found to address this issue refer to MVC and so they assume that HttpRequest derives from HttpRequestBase, which it does in MVC but not in ASP.NET Forms.I tried using Moq but you can't mock a sealed class, and HttpRequest is unfortunately sealed with no interface.
I am currently a beginner in asp.net i am currently watching msdn videos of "beginners developers learning" i am on the topic of application state so i got confused on a topic of "cross page postback" can anybody explain what that is
and another thing is "profile" object we use it in web.config file
1. what is cross page post back?
2. what is web.config file?
I want to do something similar to what happens when you click an asp.net button that has a PostBackURL set. I've tried Server.Transfer but the URL doesn't change (which is something I want). Is there a better way to do this, or alternatively is there a way to make Server.Transfer display the correct URL?
View 2 RepliesI'm trying to solve an issue in an elegant way. The problem at hand is I have 2 aspx pages (I'll call then Page1.aspx and Page2.aspx).
Page1.aspx contains an AJAX tab control with 3 tabs (I'll call the control Tab1). Page2.aspx also contains an AJAX control with 3 tabs (I'll call the control Tab2).
My question is, is there an elegant way to have a hyperlink on the second tab of the Tab1 control that links to the thrid tab on the Tab2 control? And, is there a way this linkage can be represented as a web address (example : http:\someserversomeappsomepage.aspx???TabControlIdentifier,???TabNumber.
The current methodology we are implementing is to pass the TabControlID and Tab number as querystring values and the set the focus in the codebehind of the page. But the only way I can think of to implement this across multiple pages is to have all the receiving pages implement the same overriding class that handles the focus issue.
when any Button control is clicked generally it Postback the page to itself, and the same page is regenerated.This is the usual defination of postback in context of a Button Control. But my dear friends i am confused that what is the actual mechanism behind this.Okey say for definition the above statement is fine but believe me i not not getting the actual meaning.What is posting back the Page? What is Page in browser's context? There is only html markup, JavaScript and CSS codes in browser's page.These make up the html page. I think there is no any relation of this Browser's page with ASP.NET Page class. What does it mean that browser's content is posted back to the Page itself ?
View 1 Replies1- I am using updatepanel and somethings work asynchronously and others do not which are in the same page.
But could it be that using the "same" trigger for two different update panels causes the first one to be asynchronously and the second one not?
2- In php u have something called $_POST['variablename'] which u get from a previous page. Is there anything similair in ASP.NET?
My point is that I have a dropdownlist and I want in the next page to launch a message depending on what the user chooses in the dropdownlist.
Master Page(See where i call Logon user control . )<%@ Master Language="C#" Inherits="System.Web.Mvc.ViewMasterPage" %>
View 1 RepliesI've been having trouble getting a postbackurl to work, so I tried to do a simple test between two pages and I still get the same thing.
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That's all I have on Test1.aspx, yet no matter what I do it just postsback to itself. I can't get it to direct to Test2.aspx. I've tried LinkButton too.
I'm using VS2010 and the builtin webserver.
I'm getting the 'Object reference not set to an instance of an object.' error on PreviousPage after using PostBackUrl.I created a simple test page to recreate the problem, however it worked fine, until I moved the source and destination pages into different folders. Is this the reason the PreviousPage object is null? how do I fix it?Both the folders the source and destination pages are in are in the root directory of the website.Source Page: /companies/test.aspx
<asp:Content runat="server" ID="Content" ContentPlaceHolderID="FullPage">
<asp:TextBox ID="Demo" runat="server"></asp:TextBox>
<asp:LinkButton ID="testlink" Text="test" runat="server" PostBackUrl="~/Documents/test2.aspx">
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