User Controls :: Getting Data From Iframe In Separate User Control
Sep 18, 2012
I have a website the main page holder is placed within an iframe - everytime I navigate to a page from the menu a new page id is set within the frame. I have a left hand panel seperate to thee i frame which is a usercontrol and is static. I'm trying to capture the main iframe pageid from within the usercontrol.When I navigate to to a new page - the iframe is updated but the usercontrol is not, and im struggling to think of how I can grab frame id from within the usercontrol.
I've tried setting trhe page id as a session variable but this isnt accurrate enough. I need to grab it as as soon as a new page is hit.
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Similar Messages:
Jun 4, 2010
I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.
If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?
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Mar 29, 2011
I have a user control with following hyperlink:
<asp:HyperLink ID="MakeOrderLink" runat="server" onclick="return MakeOrderLink_onClick(this);" />
javascript function redirects based on provided parameters to another page
function MakeOrder_onClick(sender) {
//param1, param2
document.location.href = sender.href + '&count=' + param1 + '&date=' + param2;
return false;
}
This user control is placed on .aspx page, which I need to provide as an iframe.
I need the page to open in new window.
MakeOrderLink.Target = "_blank" works when the control is placed only in .aspx page but I can not figure out how to redirect when it is nested two levels down (link inside user control contained in iframe contained in another .aspx page).
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Oct 2, 2010
If I'm correct the membership functionality separates account and user (profile) data in two tables. Why not one table? What's the design priciple behind this?
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Jun 11, 2010
I have to access the parent form's controls inside an event handler method on my user control's code behind.
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Mar 10, 2011
I have a web user control that represents a simple message box. It is used to display simple messages like "Item has been deleted", or "The item was saved successfully".
On the other hand, I have another web user control that represents the item in the form of an editable form (I made this a user control because this is used in two different pages). I want to embed an instance of the message box user control inside the editable form. I am writing this right after the @Control directive:
[Code]....
Instead of using @Register directives, I register the user controls in web.config and so far this has worked just fine.
With the above markup, the project compiles, but whenever I try to navigate to a page that contains this construct, I get an HttpParseException exception. Furthermore, Visual Studio states that the tack w7rc9:MessageBox doesn't represent a known control.
What am I doing wrong?
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Mar 7, 2011
I am having one doubt regarding the use of static variable in Asp.net pages.I am having one page say UserDetails.aspx.In this page, I have one static variable to store some data specific to a user. So, will this ?
public partial class UserDetails
{
static int numberOfReviews=0;
[code]...
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Apr 16, 2010
I need some on techniques to perform page redirect in asp.net. Which one is more recommended to use in asp.net?
Dynamically changed the src of the Iframe to difference aspx.
[code]....
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Sep 1, 2010
I have an ASP.NET 4.0 application with some simple user controls. The user controls work fine on the design surface (VS.NET 2010), but when they're loaded during application execution, nothing shows up.
Futhermore, the various child controls of the user controls are null when referenced inside the code behind for the user control.
The code behind for the user control executes as expected, but any reference to child controls are null.
It's like ASP.NET is never parsing the ASCX to create the instances of the child controls.
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Mar 28, 2011
I have a user control (ascx file) that contains an interface for users to change the data retrieved from the db. So, I am displaying data and most of this data can be edited by the user. When the user enters text into a textbox, and clicks "Save Changes", the value they typed in is lost and not persisted to the database. I realize now this is because the SaveChanges button does a postback, and the user control gets reloaded with its original valuesbefore the code within my SaveChanges button gets executed. I'm not sure if there are properties I need to set to save the input data, or if I need to write my own code to do it. What is the generally accepted method to do this? (Also, all of the controls in the ascx file are wrapped in an Update Panel.)
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Feb 25, 2011
I have DefaultPage with MasterPage, two web user controls A.ascx and B.ascx. A.ascx is nesting B.ascx
I created folder App_LocalResources and added there two files: B.ascx.resx and B.ascx.xx-XX.resx.
Each resoource file has lblText.Text item.
B.ascx has a label:
[Code]....
I'm trying to use this [URL] methods to localize web user controls, but it doesn't work. Is there some trick for web user controls?
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Apr 16, 2012
I hava a page default.aspx having master page abc.aspx and web user control login.ascx i want to call perform simple alert function on login button but not on client click event. For e.g
Protected Sub BtnMyIpLogin_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnMyIpLig.Click
'Some Validation part here for user login
'then my if condition like
If flag_alert = 0 Then Page.ClientScript.RegisterStartupScript(Me.GetType(), "btnflag", "alert('Your Download / View Limit Exceed More Than 90%');", True) End If
but it is not working.........................
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Oct 16, 2012
I'm working on a project in which i added an user control. I put some css effect in it and a also added a dropdown. When i run the application the effects are working but when i change the dropdown values the css effects will lost somehow.
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Jul 21, 2010
I want to create a user control that will again contain a user control that will be dynamically generated and can be repeated N times with respect to data present in data table.
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Dec 9, 2010
I've got a user control which contains a number of other user controls. I need programmatic access to some of the properties of one of the inner controls from the page which contains the outer control.
So, Page contains Outer Control contains Inner Control, and Page needs access to Inner Control's properties.
I could of course create properties in Outer Control which return the corresponding properties in Inner Control, but this would be tedious. What I would like to do is add a property to Outer Control which returns Inner Control itself, so that Page can access its properties directly:
(In codebehind for Outer Control):
public UserControls_InnerControl InnerControl { get { return this.ctlInnerControl; } }
But when I build the website I get:
The type 'UserControls_InnerControl' is defined in an assembly that is not referenced. You must add a reference to assembly 'App_Web_fc5rstgb, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'.
What the hell? I work programmatically with instances of user controls all the time (for example, adding them dynamically to other controls) and I've never seen this before. Is there anything I can do?
Edit: Interestingly, it's not the property in OuterControl which exposes InnerControl which is causing the exception. It's the code in Page which consumes this property that errors.
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Jun 11, 2010
I have a view where I want to perform different actions on the items in each row in a table, similar to this (in, say, ~/Views/Thing/Manage.aspx):
[code]....
In the most part, this is working fine. The problem is that if ThingService.SetEnabled throws an error, I want to be able to display the error at the top of the table. I've tried a few things with Html.ValidationSummary() in the page but I can't get it to work.
Note that I don't want to send the user to a separate page to do this, and I'm trying to do it without using any javascript.
[code]....
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Sep 10, 2010
I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?
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Feb 17, 2011
I am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error
saying "Object reference is not set an instance".
how to refresh data from another user control ...
My senerio below :
1 Aspx page
2. User control
calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..
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Feb 18, 2011
I'm attempting to create a simple menu user control just as outlined here.
The attached code results in an "Object reference not set to an instance of an object" error, but I can't figure out why.
<%@ Master Language="VB" CodeFile="MySite.master.vb" Inherits="MySite" %>
<%@ Register src="Controls/Menu.ascx" tagname="Menu" tagprefix="my" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">......
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May 7, 2015
I would like users to upload a profile picture when they register, and to then show that picture in a picture box control when they are logged in based on that specific user.
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Jan 8, 2010
I would like to use the gridview paging feature and have built a gridview with a user control. The data source has lots of columns, so to make it easier I want to return a LIST<MyObject> and just pass <Myobject> into the user control rather than all the data elements. Not sure how I access the object of the data source to bind to the control. Assume it would be during ondatarowbound.
Also, my guess is there is a better way to do this than gridview. I'd take either solution that allows me to have easy paging and pass the complete object into the user control
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Jul 16, 2010
I want to convert windows user control into web user control..I have the usrDataView.cs..I need to convert this file into usrdataview.ascx.can anyonr help me?...how I can convert the file...Is any method is available..
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Apr 27, 2016
When a user wants to view another user profile on user profile page this error will show up
ERROR
Server Error in '/' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 72: protected void OnDataBound(object sender, EventArgs e)
Line 73: {
Line 74: string userName = (FormView1follow.Row.Cells[0].FindControl("hfUserName") as HiddenField).Value;
Line 75: string friendsUserName = (FormView1follow.Row.Cells[0].FindControl("hfFriendsUserName") as HiddenField).Value;
Line 76: string followStatus = (FormView1follow.Row.Cells[0].FindControl("hfFollowStatus") as HiddenField).Value;
HTML
<div class="text-center">
<asp:FormView ID="FormView1follow" runat="server" OnDataBound="OnDataBound" Width="100%">
<ItemTemplate>
<asp:HiddenField ID="hfUserName" runat="server" Value='<%# Eval("UserName") %>' />
<asp:HiddenField ID="hfFriendsUserName" runat="server" Value='<%# Eval("FriendUserName") %>' />
[Code] .....
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Oct 7, 2010
User control can not be added in to toolbox,Unless or until it is changed into custom control.(VS 2005.) Once i have changed user control into custom controls(Composite Controls,WebControls,Controls) then i can add it into tool box. These statement are correct?. or is there any possibility to add usercontrol in toolbox?
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Sep 7, 2010
I have a calendar control where a user selects a date and then inputs info into a FormView control. Underneath the FormView is a GridView that shows all data from the SelectedDate on the calendar control. However, when the date is selected, all the information from the table ( from all dates ) is displayed.
[Code]....
And the code behind:
[Code]....
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