Want To Create A Webpage Which Can Handle User Events Like Page Navigation And Page Close
Sep 13, 2010
I would like to create a webpage which can handle user events like page navigation and page close. And also I would like to handle the event on server-side coding.
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Oct 28, 2010
I have an aspx webpage in which an user control is added dynamically as follows:
UserControl testUsrControl = LoadControl("TestUsrControl") as UserControl;
testUsrControl.ID ="test";
Then I tried adding an event handler of user control inside aspx like below:
testUsrControl.Drpdatafield_SelectIndexChanged += new EventHandler(this.Drpdatafield_SelectIndexChanged);
But this line is giving error at **testUsrControl.Drpdatafield_SelectIndexChanged **. The error is "Drpdatafield_SelectIndexChanged" doesn't exist in UserControl.How can get the testUsrControl's events inside aspx page dynamically.
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May 16, 2010
I'm trying to create an ASP.NET MVC master page so the site navigation on it will look like this:
Main Menu:Home | About | News
Sub Menu: Home_Page1 | Home_Page2
The Sub Menu section should always show sub-menu for the currently selected Main Menu page (on the example above 'Home' page is selected) unless a user hovers the mouse on another Main Menu item (then it shows that item's sub-menu instead).
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Sep 27, 2011
I am trying figure out how I handle events in a dynamically added user control. Basically I can add user controls dynamically to my form (I am then storing them in an ArrayList in a Session variable that I use to reload them on my Page_Load). Each control has a button on it. However, whenever I click the button, the event never fires (code is never reached). I assume it has something to do with the control being dynamic, and when I click a button, it goes out of scope, and when I reload it something is lose in the event handling.
Here's my code for adding a user control:
Code:
Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim alContact As New ArrayList
If Not IsPostBack Then
' Dummy controls for testing
Dim oContact As New ASP.ContactControl
[Code] ....
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Feb 26, 2010
Im working on a website where users can log into a members area, inside this area they will be able to communicate with other members.
In order to keep an accurate list of who is online and who is not, I would need to update a IsOnline field in my database when they log on and when they exit my website..
The login part is easy, but how can I determine if someone is leaving my website to go to another, or closing the browser.
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Mar 5, 2011
I am trying to create one subroutine that can handle all deletes for a web app. I have one delete popup panel in my master page, and I call it each time from my content pages. When an instance of delete is called from a content page, I store the name of a delete subroutine specific to the delete instance in a session variable and popup the delete panel in the master page. If a user types YES into a delete textbox in delete popup panel, a confirmDelete Subroutine in codebehind of the Masterpage is called. When the confirmDelete subroutine in the Masterpage is callled, I want to call a subroutine in the content page that has the name stored in the session variable. What is the simplest way to do that?
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May 13, 2010
When writing up a codebehind in Visual Studio for ASP.NET web forms applications, I often use the dropdowns at the top of the window to autogenerate page event handlers (e.g. Page_Load, Page_PreRender). I've noticed that sometimes Visual Studio likes to add numbers to these function names like "Page_Load1" or "Page_PreRender2".
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Feb 23, 2010
I have user control that inherits a base control class and these user controls are loaded using the LoadControl method, I can't seem to figure out how to raise events from user controls to the page that are dynamically loaded this way. Here is the delegate and event in the base user control class.
public delegate void SomeChangeEventHandler(object sender
, SomeChangeEventArgs e);
public event SomeChangeEventHandler SomeChangeEvent;
public virtual void OnSomeChanged(SomeChangeEventArgs e)
{
if (SomeChangeEvent != null)
{
SomeChangeEvent(this, e);
}
}
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Aug 3, 2010
I have an update panel on the parent page into which I load and remove a set of user controls.
Now, when a button is pressed on the user control, the events are fired but there are no changes in the page. For example:
Main Page
<updatePanelMain>
<childcontrol1>
<childcontrol2>
etc
ChildControl.ascx
<update panel 1>
<panel1/>
<panel2/>
<btn1/>
etc
So, if I want to hide panel 1 when btn1 is clicked etc, I simple use code such as panel1.visible = false.
All this gets executed but nothing happens to the page.
<asp:UpdatePanel ChildrenAsTriggers="false" UpdateMode="Conditional" ID="updatePanel"
runat="server" EnableViewState="true">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" EventName="Click" />
</Triggers>
<ContentTemplate>
However, when I use placeholders instead of update panels in the child controls, I dont face any such problems.
<asp:PlaceHolder ID="placeholderTypeOfInvestor" runat="server">
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Jul 20, 2010
I have a LinkButton within a User Control and it has handled with:
Private Sub LoginLinkLinkButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LoginLinkLinkButton.Click
Response.Redirect("/", True)
End Sub
On certain ASPX pages I would like to handle the click from the page's code behind, opposed to within the user control. How do I override the handle within the control from the parent's code behind page?
Update:
Based on the answer, I have the following no added to the User Control:
[code]....
The problem is determining the correct syntax for the if line because the above is invalid.
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Nov 9, 2010
I want to create a web page that will allow user to create a web page. The admin user should be able to give access rights to the controls which the user will place on his web page.
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Jan 6, 2011
Do you have any idea about the problem causes change the size of my nested aspx pages which are included in master page... When I click on my menu items, it navigates to new aspx pages which is in the content-placeholder .but new pages are getting smaller so my page contents, images, tables, text are moving. And my internet explorer is shutting down.
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Aug 25, 2010
Iam using masterpage and i want to use navigation menu ,but i don't want to use sitemap concept
how to work with navigation menu and assign the pages in navigation menu in master page
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Apr 9, 2010
I've googled a bit for the exact order of all gridview events relative to and where inbetween page events. The only Microsoft article: [URL] is not very clear. I'm especially interested in the gridview row_command event relative to page events.
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Oct 27, 2010
Following is my requirement :
I have 3 asp.net web pages. From the 1st page i am opening showmoadlDialog(2nd page) in which(2nd page) i am storing some value in session(Ineed to do this here only) and checking some count which is coming from database, If count is Zero it will display message but if some value is there and then if i click on Ok button it will redirect to 3rd page. And close the 1st and 2nd Page.
how to do this ?
When i am clicking on Ok button it is showing some cofirmation message(Do you want to close this window) but this i dont want.
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May 23, 2010
I need to update datalist in image gallery when fileupload has been completed.
<div style="display: block;">
<div>
<div style="padding-left: 15px; padding-right: 15px;">
<div>
<uc1:ctrlFileUpload ID="ctrlFileUpload1" runat="server" />
<uc2:ctrlImageGallery ID="ctrlImageGallery1" runat="server" />
</div>
<div>
</div>
</div>
</div>
</div>
In the Control File Upload I need to fire the the other ctrl to refresh the page.
<asp:UpdatePanel ID="UpdatePanelUploadArea" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<span>
<asp:FileUpload ID="FileUpload1" runat="server" />
<br />
<asp:Button ID="UploadButton" runat="server" Text="Upload Now" OnClick="UploadButton_Click" />
<asp:Label ID="lblResult" runat="server" ForeColor="#0066FF"></asp:Label>
<br />
</span>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="UploadButton" />
</Triggers>
</asp:UpdatePanel>...........
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Apr 18, 2010
I have the default.aspx page that I'm using javascript (in page_load) to open a new window (main.aspx) without toolbars/menus. This is the window I wan't up the remainder of the time. Is there a way to close the default.aspx page after opening the new window?
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Dec 1, 2010
I'm creating a web user control in asp.net using C# in which i can select a date from a calendar and display it in a textbox. when i select a date from the calender it has to be displayed in the textbox. now i need to set my own properties by which i can select datetime patterns in cs codefile. for example
usercontrol1.dd-mm-yyyy.
this is one example. now i want all the datetime patterns of "en-us". when i use that usercontrol in another page i want to set any of the properties(datetime patterns) to that control.
public partial class DateControl : System.Web.UI.UserControl
{
string dateformat;
public string Dateformat
{
[Code].....
i said that i want set properties for my user control and create events for that..
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Mar 21, 2010
When a button/link is clicked, I want this URL to be called followed by the execution of the following statements. The ASP.Net page is in C# btw.
Function A
statement A
call abc.apsx
statement B
abc.aspx is a silent page, doesn't display anything on the page but creates an output.txt file. So when abc.aspx is called, output.txt file is created and Statement B is executed seamlessly.
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May 3, 2010
I am feeling that I have terribly wrong somewhere. I was working on a small asp.net app. I have some dynamic themes in the heme folder and have implemented a page base class to load the master page on the fly. The master is having the ContentPlaceHolder like: <asp:ContentPlaceHolder ID="cphBody" runat="server" />
Now I am adding pages that are derived from my base class and added the form elements. I know, Visual Studio has problem showing the page in the design mode. I have a dropdown box and wish to add the event of onselectedindexchange. But it is not working. the page is like this:
<%@ Page Language="C#" AutoEventWireup="true" Inherits="trigon.web.Pages.MIS.JobStatus" Title="Job Status" AspCompat="true" CodeBehind="JobStatus.aspx.cs" %>
<asp:Content ID="Content1" ContentPlaceHolderID="cphBody" runat="Server">
<div id="divError" runat="server" />
<asp:DropDownList runat="server" id="jobType" onselectedindexchange="On_jobTypeSelection_Change"></asp:DropDownList>
</asp:Content>
I have also tried adding the event on the code behind like:
protected void Page_Load(object sender, EventArgs e)
{
jobType.SelectedIndexChanged += new System.EventHandler(this.On_jobTypeSelection_Change);
if (!IsPostBack)
{
JobStatus_DA da = new JobStatus_DA();
jobType.DataSource = da.getJobTypes();
jobType.DataBind();
}
}
protected void On_jobTypeSelection_Change(Object sender, EventArgs e)
{
//do something here
}
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Jul 15, 2010
I'm trying to create a page that displays a databound gridview to the user showing them the items being processed. Then the page should immediately begin processing. The problem is that the page never shows the gridview (or any other control) until the process is complete. The process is being sent to a WCF service. I've tried setting the page to async and running the wcf in async mode but the content still fails to display.
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May 7, 2010
I have an asp.net C# website. Because of iPhone doesn't support flash i want to change a theme of my site on page load or init if user using it. Could any one show me (code in c#) how to determine that user is browsing my website using iPhone or iPad, not a blackberry, or android etc.
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Feb 10, 2010
When does an event of a master page fire? What is the order of firing events between Master page and Content page in asp.net?
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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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May 28, 2010
Using C#, ASP.NET 3.5, VS 2008.
On a page with some user controls, I need to execute some lines of code only once (i.e. not on postback), however, the code must run after ALL page objects complete loading.
Example, Page1.aspx also contains uc1.ascx and uc2.ascx. If I imbed the code in a if (!PostBack) code block, it will end up running before the corresponding page load is completed for uc1 and uc2.
Is there a way to run the code on Page1.aspx once AFTER all the objects on the page have run thru their page load events?
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