Accessing Dynamic Controls On Next Page When Redirecting With PostBackURL?
Aug 20, 2012
I had a issue with accessing dynamic controls in destination.aspx, which i had created during runtime while populating them in a panel in source.aspx.
In source.aspx, i generate controls and fill them up in a panel, after that, this page was posted to destination.aspx. however, i am unable to retrieve my controls at the destination page.
Following are some of the ways i had tried.
this does not work at all, i can't cast a control using a request, it only returns me a string.
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Jan 3, 2011
on my default.aspx page, i have one dropdownlist (which has book types as values e.g. small books, medium books etc.). Then one textbox. And one button named 'Search'. On button click the datagrid shows result by filtering table data with book type and search string that user enter in textbox.
So on 'Search' button click, i want to load the same page with result but with query string like 'Default.aspx?booktype=small' (using response.redirect) if user selects small in dropdown list. The problem is when i click 'Search' button and the page gets loaded again I cannot access dropdownlist values and search string that user has entered. It takes null only when I use,
[Code]....
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Mar 1, 2010
Can I configure ASP.NET custom errors so that it would redirect to other site when error has occurred. Even more, I would like to redirect to different web page every time. Here is my simplified actual case: User opens my pages with query? urlpage=[URL] and I would like to redirect to this page when error occurs. How should I act in this scenario?
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Feb 2, 2014
I have a registration page I enter the details of the customers and redirect to another page for capturing photo and I come back to the registration page. I want to retain all the values i entered when i land on the registration page.
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Aug 9, 2010
i have 2 dropdown list, menu and a gridview in my aspx page.
in the gridview a have add a linkbutton with select CommandeName.
i want to use the postbackurl in the linkbutton to open an other page with querystrings parameters.
this querystrings should contain: the selected item in Menu, the dropdownlist1 selected value, dropdownlist2 selectev value and the gridview selected value.
how do i add all the controls value to my postbackurl ?
[code]....
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Aug 3, 2010
I generate dynamic grids based on a count value returned from some DB tables. the code for it goes like this : I give and Id to each grid that is generated.
if (myDataList1.Count >= 1)
{
for (int i = 0; i < myDataList1.Count; i++)
{
//retrieving the exact i count from pageload
ViewState.Add("newCount", i);
//creating the dynamic grid with its corresponding gridview properties.
grvDynamic = new GridView();
grvDynamic.ID = "GridView" + (i+3);
grvDynamic.AutoGenerateColumns = false;
grvDynamic.RowCreated += GridViewRowCreated;
grvDynamic.RowDataBound += grvDynamic_RowDataBound;
//adding bound field columns to retrieve data from stored proc
BoundField metric = new BoundField();
metric.HeaderText = "Goal ";
metric.DataField = "metric";
grvDynamic.Columns.Add(metric);
BoundField mtd = new BoundField();
mtd.HeaderText = "MTD";
mtd.DataField = "value_MTD";
grvDynamic.Columns.Add(mtd);
BoundField goal = new BoundField();
goal.HeaderText = "Tier Level Achieved";
goal.DataField = "value_goal";
goal.HeaderStyle.Width = Unit.Percentage(10);
grvDynamic.Columns.Add(goal);
BoundField you1 = new BoundField();
you1.HeaderText = "Month End";
you1.DataField = "firstLevel_you";
grvDynamic.Columns.Add(you1);
BoundField you2 = new BoundField();
you2.HeaderText = "Month End";
you2.DataField = "secondLevel_you";
grvDynamic.Columns.Add(you2);
ButtonField singleClick = new ButtonField();
singleClick.CommandName = "clickHyperlink";
singleClick.Visible = false;
grvDynamic.Columns.Add(singleClick);
BoundField metricId = new BoundField();
metricId.HeaderText = "Metric Id";
metricId.DataField = "metricID";
metricId.Visible = true;
grvDynamic.Columns.Add(metricId);
//binding the gridview to data.
grvDynamic.DataSource = data;
grvDynamic.DataBind();
grvDynamic.Columns[5].Visible = false;
}
}
protected void grvDynamic_RowDataBound(object sender, GridViewRowEventArgs e)
{
//this basically gets the metric Id's of rows with the ishyperlink flag set to 'Y'. I need to make these particular cells clickable var isClickable = (from md in myDataList3 where md.IsHyperLinkFlag == 'Y' &&
md.value_MTD != null select md.metricID).ToList();
if (e.Row.RowType == DataControlRowType.DataRow)
{
// Get reference to button field in the gridview.
LinkButton _singleClickButton = (LinkButton)e.Row.Cells[5].Controls[0];
if (isClickable.Contains(Convert.ToInt32(e.Row.Cells[6].Text)))
{
e.Row.Cells[1].Style["cursor"] = "hand";
e.Row.Cells[1].Style["color"] = "blue";
e.Row.Cells[1].Style["textdecoration"] = "Underline";
e.Row.Cells[1].Attributes.Add("onClick", "window.location ='../HeaderPages/page2.aspx' ");
}
}
}
This code works perfectly fine , depending on the ishyperlink flag in the database...specific cells in the grid are made clickable and then redirected to page2.aspx My Issue: I need to capture which specific cell in which specific grid the user has clicked. store some information in sessions based on the cell clicked and use that information in page2.aspx.
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Feb 18, 2010
I have 3 search pages which all implement IProductSearch. I have a results page that expects it's PreviousPage to be a cross page postback of type IProductSearch. The IProductSearch pages use the postbackurl property to post themselves to the results page. The results page then loads the search params from the IProductSearch page and loads the results. All in all its working well.
Now, I want to create a IProductSearch page that has no gui and takes all its values from the querystring. But as there is no button to press (therefore no postback url property) how do I get this gui-less IProductSearch page to cross-page post to the results page?
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May 6, 2010
i have a datalist displaying some items as follow:
[Code]....
but since none of the control in the datalist can have a command name this method doesnt execute.Without it alos the Href property doesnt redirect to the page.Have i miss something or any other way this could be achieve?
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Jan 28, 2011
Lets say I have a Web Application with a menu of products. When a user clicks a menu item, then create and display a dynamic set of controls in an Update Panel. I am currently doing this however the PostBack and recreation of controls is tedious and resource intensive.
Not sure about this but is it possible to build a webpage with controls on it, then display it in update panel or IFrame? Then on post back you wouldn't have to recreate everything all over again?
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Jan 29, 2010
I am using forms authentication and authorization through roleManager. I have two Roles - "Customers" and "Employees". The redirection to the default page for the "Customers" role is working fine, but I get an oledb error stating that one or more parameters are not being passed when I redirect a user from the "Employees" role. The following is the code in login.aspx that handles the authentication of the user:
If myReader.Read() Then ' We have a match
If myReader(1) Then ' This is true if an Employee and false otherwise
If Not Roles.IsUserInRole(logInUser.UserName, "Employees") Then
Roles.AddUserToRole(logInUser.UserName, "Employees")
End If
ElseIf Not Roles.IsUserInRole(logInUser.UserName, "Customers") Then
Roles.AddUserToRole(logInUser.UserName, "Customers")
End If
FormsAuthentication.RedirectFromLoginPage(logInUser.UserName, logInUser.RememberMeSet)
Else
Response.Write("Invalid credentials")
End If............................................
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Jan 26, 2011
i have a masterpage and has some linkbuttons in it, i also have a webform which is a content page for the masterpage. i like to access the controls to the webform via the linkbutton residing in the masterpage or access the linkbuttons via the webform controls.
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Sep 22, 2010
I have a master page with a textbox that I want to use for a search, and display the results on the content page.
I've dragged in the datasource to the content page, and configured the formview to use that datasource... almost.
The issue I'm having is that on the last step of the configure datasource wizard where you select the parameters, I want to select the master page textbox control for the search parameter... but of course it's not available in the list. The list only allows me to choose controls from the content page.
How do I set this master page search box as the parameter for my datasource?
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Jan 29, 2010
i'm using button for open a new form.the code in test.aspx file is,
< asp:Button
ID="Button3"
runat="server"
Text="Send
Enquiry" Postbackurl="~/contact.aspx" Width="90px"
onclick="Button3_Click"
/>
this is also not working. And i tried this control in code behind file,test.aspx.vb.
Public
Sub Button3_Click(ByVal
sender As
Object,
ByVal e
As EventArgs)
Handles Button3.Click
Response.Redirect("contact.aspx")
End
Sub
i'm sending a label value to next form(i.e "contact.aspx")or user filling form,where some textboxes must be filled by user.
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Feb 23, 2010
I want to access controls (textbox and HTML hidden fields) from current page to do some transactions in my database.
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Sep 3, 2010
I have a problem i am trying to work out the best method with my limited skills. Im using vb.net(VS 2010) I am using a dll for an IFrame , which is call from code behind. On my site I havea masterpage which has two gridviews. ( GrdViewWebBureau is the one i am using for this query) GrdViewWebBureau is contained within an update panel and updated on a timer control trigger. GrdViewWebBureau updates the page with file counts and status from our clients. I can click on any one of the cells and the code behind is fired. What I am trying to do is put an IFrame on the master page and every time a user clicks on the grid, the Iframe is fired up.
I have tested the iframe and vb code behind from a dummy page and it works, however when the Iframe is on the master page it doeant work. What I am tryingh to achieve is that no matter what page a user is on the site, they will be able to click on the GrdViewWebBureau and the iframe will fire with the correct childpage. Each webPage may also have an Iframe as well, so i dont know if it is possible to make the IFrame global and just call that control ?? I have no idea if 1 this is possible with the code i have and 2, if i have the brains to understand the who what why and when.
[Code]....
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Feb 7, 2011
I have created a forgot password page with a PasswordRecovery control in it.
<asp:PasswordRecovery ID="PasswordRecovery1" runat="server"
BorderColor="#E6E2D8" BorderPadding="4" BorderStyle="Solid" BorderWidth="1px"
Font-Names="Verdana" Font-Size="0.8em" Height="210px"
onsendingmail="PasswordRecovery1_SendingMail" Width="491px">
I want to redirect the user back to the login.aspx page once the user clicks the Forgot Password button.
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Dec 24, 2010
I have a page in which I am not using cache by using this code:
HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
HttpContext.Current.Response.Cache.SetValidUntilExpires(false);
HttpContext.Current.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.Cache.SetNoStore();
Now I want to know: Is there any difference between coming to this page using a proper link or coming back using browser back button, or is there any way to detect this?
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Sep 4, 2010
I have a page that will generate upto 10 copies of some web controlls, depending on how many the user wants, but I am not sure on how to access the data the user enters into it. The code I have is:
[Code]....
As you can see I want to access the vale to add to the list but not sure. I tried tbGameNamei.Vaue but VS has a kanipshat about it.
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Jan 15, 2010
need some info regarding button click. I want to send mail with autorespond mail on single button click. Within that waiting time I want a screen that will show "REDIRECTING" (like gmail) and will show a "thank you" page after successfully sending themail.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
[code]....
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May 21, 2010
I am trying to redirect an ASPX Page to a Classic ASP Page, This is Working Fine with my Local IIS (version 5.1). OS is XPesponse.Redirect("xyz.asp?id=1234");I tried to deploy it into Windows server 2003, IIS Version 6.0 and i am getting an error"Page Cannot be Displayed. here is a problem with the page you are trying to reach and it cannot be displayed."
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Nov 8, 2010
n the web page I need to print some content partly fetched from database to the user. The user can print all the reciepts of his basket or just print one reciept. what I do for now is that I redirect user to another page including datalists that fetched regarding info from database and then by clicking print it prints data. after that user shoud push back button to be redirected back to main page.But I want to do something on my page, that some how maybe pop up modals or flyouts or anything else, will be able to show data collected from database match with users basket, and let user click print and then print it. I need a solution on the same page not on the other page.
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Mar 17, 2013
protected void lblNVariz_Click(object sender, EventArgs e)
{
Session["Page"] = "~/Admin.aspx";
Response.Redirect("Admin/Bank-Data.aspx");
}
but when I click on link button it didn't redirect to Bank_data.aspx page it just refresh admin.aspx page
but when I change code Like below
protected void lblNVariz_Click(object sender, EventArgs e)
{
Response.Redirect("Admin/Bank-Data.aspx");
}
it redirect to Bank_data.aspx page.When I put session on it, it didn't worked...
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Nov 12, 2013
vs 2010, sql server 2008
I want login page code.my code is not working.
I have user table with username and password.
obj = new common();
con = new SqlConnection();
con = obj.getconnection();
SqlCommand cmd = new SqlCommand();
SqlDataReader rd;
cmd.Connection = con;
con.Open();
cmd.CommandText = "select username,password from user where username =@username and password=@password";
[CODE]..
when username and password is correct , it should redirect to default page.
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Jun 28, 2010
We have some code which is designed to build up a key/value pair of controls on a ASP.NET webforms page and their values. We use the "Controls" collection and recursion to build up this key/value pair.
The only issue is that ascx controls don't appear to come back in the "Controls" collection. Instead we get the controls on the ascx.
Something similar to the following code:
[Code]....
The subCtl is never a ascx control. Is there a way to get a list of the ascx controls on page or better still a different collection that contains both types?
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Nov 22, 2011
This is my html:
Code:
<!-- ADD PRINTER -->
<asp:Panel ID="AddPanel" runat="server" Visible="false" CssClass="aspPanel">
<h1>Add Printer</h1>
<p><asp:Label ID="lblPrinterEmailAddress" OnLoad="ProcesstextValues" runat="server" Text="Common/Label/EmailAddr" CssClass="aspLabel" />
[Code]......
When the user hits the Save button, AddSaveChanges_Click() is called. In that procedure, I want to make sure the user has entered a valid email in txbPrinterEmailAddress. The problem is when I reference RegExEmailValidator in my code behind, I get object reference not set to an instance. This is my code when I detect the invalid email
Code:
Else
Logwriter.LoggerWrite(String.Format("Page is NOT valid and {0} is an invalid email id", txbPrinterEmailAddress.Text), "MyLog")
'EditPanel.Visible = True
'ShowListPanel.Visible = False
'AddPanel.Visible = False
RegExEmailValidator.Enabled = True
RegExEmailValidator.Validate()
End If
And my log entries are:
11/22/2011 1:40:37 PM Page is NOT valid and xxxxxx is an invalid email id
11/22/2011 1:40:37 PM EXCEPTION in AddSaveChanges_Click() - Object reference not set to an instance of an object.Why is RegExEmailValidator not an instantiated object?
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