Web Forms :: CrossPage PostBack In Series Of Pages?
Mar 17, 2010
I had a requirement to pass data between pages in my application.I have a Page A where user will input some data and on submit User will be redirected to Page B where again user will enter some more data and on submitting user will be show a confirmation in Page C after doing some calculations and data saving.Following is the idea I was trying to use:
PageA.aspx:
[Code]....
In Page A Codebehind file I am creating following public properties of the inputs to access in Page B:
[Code]....
In PageB.aspx:
using previouspage directive to access page A public properties
<%@ PreviousPageType VirtualPath="~/PageA.aspx" %>
[Code]....
In Page B Codebehind file I am creating following public properties for the inputs to access in Page C:
[Code]....
in PageC.aspx:
using previouspage directive to access page A public properties
Postback is working fine from Page A to Page B, but when posting data from Page B to Page C, it is automatically redirecting to Page A.
I am not getting any kind of error or anything. page is simply redirecting to Page A. One reason as I understand is that when I post data from Page A to page B. Page A life cycle is executed and Page A becomes null.But when the data is posted to Page C. why the PreviousPage property is checked for Page A?
Im using this code below, but it does not work. I am NOT specifying the "PreviousPageType VirtualPath" in the page, as I want to be able to post to this page from multipul different pages. It finds the placeholder ok, but the control collection for that placeholder is empty so the textbox is never found.
I want to be able to post to this page from many pages that are created using the custom error page. So I cant really specify the "PreviousPageType VirtualPath" as it can be many places all of which are not physical paths
I've a DetailsView which I would like to pass an ID across to another page but cannot figure out how to do it!My ContenPlaceHolder is called MainContent, DetailsView is called DetailsView1This is what I have:
I've got an issue with the postback property. I have a chart (Code below) which has two series pulled from a datasource.
Both series display fine but I've enabled the bars in the chart to respond to the click event and when items from the first series is selected, everything works fine. However, I try to pull the x value for the second series, which is supposed to be a date, but all I get is an interger.
I have a Cascading drop down list that is working fine to load the correct lists however I would like to have the last one initiate a query and display a datagrid on the same page containing the results of the query. Without Ajax involved this seems rather easy by using autopostback on the drop downs. If I could do it through Ajax that would be great but I can settle with having the page to reload to display the data. Right now I'm not sure how to do either. I enabled autopostback on the last drop down and wrote a method for it but I get an error at runtime saying:
I am trying to set history points for a form that posts to a second page. Both the first page and second page are content pages in a master page.The form is in an update panel and consists of several textboxes, one radiobutton group of two radiobuttons and one ajax calendar control. The last two textboxes are a zipcode box and a county box. The county box is populated from a database table when the user fills in the zipcode in a textbox and tabs out or clicks in the next textbox.
If I go to a content page on my website and enter some data into a textbox, then BEFORE I move focus from that control I press ENTER on the keyboard, the page_load event registers a postback event which in turn passes control to the Master page's page_load event where another postback=true is registered and THEN control goes to the first button on the Master page which is HOME, and then incorrect processing results. Autopostbacks are set to False on the textboxes. If I do not key data into any textbox and press ENTER on the keyboard, I correctly stay within the form
If I use the mouse or tab to navigate thru the textboxes, fill them in and press the Submit button, everything works fine. I cannot see why entering data into the textboxes triggers this action, and even so, why control does not return but instead gets 'lost' on the Master page.
Probably a simple fix to this I am not sure. Basically, I have a MasterPage that contains a Dropdownlist. This DDL controls what is displayed in ContentPlaceHolder. However, when postbacks are caused within the Contact Pages the DDL is resetting itself. How can I keep the selected value for the DDL between postbacks?
I'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
how can i persist gridview data after crosspage posting? It seems that every time i visit another page and get back to page the entire gridview data and page index were reset.
I am doing account creation process which is containing 5 forms/ screens. On screens user at any screen can click previous button and go to previous screen and change data (but sure it cannot be done on 1st screen, as there is no screen prior to 1st).
If I redirect user to previous screen all data is washed. I am even clearing form. For this I will have to fetch data back from db.
Can there be a way that I may not have to get data from db and data previous form may not be cleared and user can edit anything ?
I have 3 columns of data that get returned from a stored procedure. Date, Error code,and Quantity. On one day we can have 8 different error codes, with different quantities.For example on the date of 18 Nov we had error code 101 = 24, error code 102 = 36, error code 103 = 4, etc. I am trying to display the different error codes in columnswith their quantity by date. There will be multiple columns for a given day because the error codes range from 101 -124. How can I display this? I currently have Just oneat a time being display based on which the end user picks.
I am trying to create a page where my user can create a new attribute dropdown for their records. To which I have created a function whereby they can create a new list and add values to it.I have query that returns a dataview with fields List ID, List Name & List Item. I want to generate a new dropdownlist for each new List ID. It should also have auto postback (although, each list will then call the same procedure),This is all new territory to me. Although I'm working in VB, I can usually follow C# examples.
I have a page of several textboxes, which I would essentially like to populate from a single query. However, to begin with, I find myself unable to even populate one textbox from one query!
I have based the following on a query previously advised to me for use with drop-down lists (hence the use of DataTable). I have adapted this as follows:
Partial Public Class AddData Inherits System.Web.UI.Page Dim CommonFunctions As New CommonFunctions Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]....
I would like the Page_Load event to populate the textbox with this query, so that the value is present as soon as the page is presented. Also, how would you advise populating many different textboxes in one go, with one query? Is this possible too?
I want to display line permanently in Y axis in stacked chart , limitation is 3000 and now i am displaring yearly value ,i want make two column for one year value display 1.Total 2.total sales of the all the mobile.
Code :
protected void Page_Load(object sender, EventArgs e) { DataTable dt = new DataTable(); dt.Columns.AddRange(new DataColumn[] { new DataColumn("Apple"), new DataColumn("Nokia"), new DataColumn("Samsung"), new DataColumn("Sony"),
I am using the Chart control that is part of the newest version of ASP.NET. In this Chart, I have 3 Spline series. Each series consists of a nullable in array (int?[]). If the element in the array is a number, I wants it point plotted. However, in the case that the value is null, I do not want it plotted. Is there a way to do this? If so, how?
so I have 3 series that are created from Cross Table Data Bind. Unfortunately some of the points are missing. Is there an algorithm I can use to cycle through the datapoints for each series and insert empty points to the correct spots so that my data is displayed correctly?
I need to defining the Series parameters for an MS Chart.
Using the sample data below is it possible to set the X & Y value types for a graph with all days for the month on the X axis and the total number of visits for each day on the Y. Are MS Charts capable of auto generating the X axis based on the extents of the data dates as well a counting the daily instances?
I have 2 series in the same chartarea. Both contain values by year (x axis). The problem is if one series does not have data for a given year, the chart will display the first value in a series on the first tick mark whether it matches the xaxis label or not.
Example:
[Code]....
Notice the 2009 value for series1 appears in the first column and the Xaxis now has 2 2009 tick marks. How do I get the values to appear on the correct X axis marks?
