Web Forms :: How To Manipulate UserControl Objects From Main Page
Aug 16, 2010
I have a Masterpage which contains two contentpalceholder, first one for a Usercontrol and second one for my web forms.
Now I want to change the usercontrol's property of sqldatasource from out side of usercontrol such as some web forms. Can I access objects of usercontrol from the other web forms or masterpage?
I have a usercontrol (ascx) with a DropDownList placed on a MasterPage. It has AutoPostBack=true. I created a SelectedIndexChanged event for the dropdown on the usercontrol, but it does not fire when seleted item changes. The PostBack fires and both current page as well as MasterPage are reloaded but the SelectedIndexChanged is not fired. How can this event be trapped?
The PrintStyleSheet.css file has a set of printing css rules set in them wrapped in an @Media Print { } block.
I need a way to programmatically remove the PrintStyleSheet.css from the list of css files for ASP.NET to inject based on some flags. (Some instances we want to print the site verbatim without custom formatting).
I know i could build a seperate theme without the PrintStyleSheet.css in it and switch the theme programmatically, however this would introduce duplication of my master stylesheet which is not acceptable.
I have a main page with some buttons on it.If the user clicks on a button, a frame is created in the center and a order (web)form is shown.At the end of the form, when the order is placed, I want to close the frame somehow.What would be the best way to do this?If I do a redirect on the page that is in the frame, it just opens the main page in the frame, which isn't what I'm looking for of course.
I have a default.aspx page and a usercontrol.acsx. i have plugin this user control into default.aspx. I clicked a button in the usercontrol.aspx but i hope can fire event at default.aspx. The means that i hope when i click a button at usercontrol page and call an event at default.aspx. Can i do like that?
I want to set the focus to a specific control in .ascx from main page. When i load the mainpage.aspx, the focus should be on a text box control which is contained in web user part called selectperson.ascx
Got a user control that has a Listbox on it and I want to be able to pass the selected value back to the main page.
User Control code:[Code]....
Main page that has the user control: [Code]....
This is the error I get back and I've tried everything I know, but cannot sort it. Probably something stupid but I just cannot see it.
System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object. at bookings_roomadmin.Page_Load(Object sender, EventArgs e) in \serverd$InetpubwwwrootNETDevelopNewAppNewAppookings
I have 2 buttons on a page. 1 does some calculations once data is entered the other, which is at the top clears the page and opens a new one to enter an estimate number and once that is done it opens the calculation page where the 2 buttons are. What is now happening is once the user enters a percent value to do the calculation they just press enter, instead of tab, and it activates the new estimate number button instead of calcualte button. All works in the correct tab order but the default button seems to be the New Estimate button instead of the Calcualte button. any way to change that?
My site was working fine in Visual Studio 2008, but the code-behind pages have suddenly stopped recognising new controls which I add to the main page. For example I added a label with id 'lblEventHeader' to the main page and then tried to set a text property in the Page_Load event. I get a compile error of "the name 'lblEventHeader' does not exist in tne current context. Existing controls, which I added before this problem seems to be unaffected.
As far as I am aware, I have not done anything which should cause this. I have even reinstalled Visual Studio, but I still get the same error message. Have I inadvertently deleted or corrupted a reference file. I have checked the Codefile and Inherits properties of the page.
when the page above loads, i have link buttons on the left and an empty maincontent area next to its right. what i want to do is display an entry form in the main content on click event of the link button on the left. the second form is as below.(form not based on master page).
how do i perform this task and if i wanted to display a different form in place of the first one that appeared in the maincontent area, how do i go about it?
now i want to add a link button , on cllicking that link button a new page in other tab will open with that Product Name and ID , then i want to read that product name and id and fetch records according to it ...
e.g:
PRODUCTS PAGE :
GRIDVIEW :
ID | Name | Detail
1 | Apple | DETAIL
2 | Banana | DETAIL
now when a user click on DETAIL row in apple , in new tab a page called DETAIL will be open and it would show URL like this :
http://localhost/ABC/DETAIL.aspx/ASDESX9023
the reason behind ASDESX9023 is : i dont wanna show the actual project name and id here ...
then after recieving this URL ;
below in my data list which is residing in DETAIL Page , the records must get fetched according to this URL ..
page structure- Page1 = aspx page with iframe(Page2) page2= aspx page contain user control usercontrol UC = have a link
Problem- if I click any link of US there is a popup message but the problem is that popus comes inside the I-frame.I want that popup on my main page (page 1)
I have a handler CsvExport.ashx that resides in the root of my web application, the problem is it is called from a javascript include so I can't use ~/ how can i have it so that any call to a file name CsvExport.ashx in in folder in the web application get sent to the proper file?
I have a strange problem in my website. When I log out from the site and try to type the URL of the main page (first page after login) it shows it as logged in, While other pages are ok, Also when I refresh this main page it returned to the login pageI tried to ways of log in and log out (FormAuthentication & Seasons)
well i have a main page in which i have a grid with templete (textbox "maintxt"and a button)and a pop up in which i have a textbox"popuptxt" i want when ever i click the button of every row i can see the maintxt text in popuptxt i can edit it in popup and then by closing popup the text of maintxt update
have some Objects, lets say Employee and Role defined as below and I have defined relationships in my database that gives me a list of objects say employees and thanks to my framework each employee object also has a Role object linked via the RoleIDID, UserName, Password, Email, RoleIDRoleID, RoleNameSo in code I can do something like this
I know how to bind a simple objects to a dropdown list. However I am having problems binding my objects which contains sub objects to the control.i.e. with simple object i just do ddl.DataValueField = "myproperty" with my objects they contains sub objects which i want to bind. I have tried ddl.DataValueField = "sub-object.myproperty" which doesnt work.
I have a simple website that I'm building (practicing). In the main page, I'm using <div> to format my page.However, I have another page that I wish to load into/or view in the Main page. Can I do this without using a MasterPage?
I have a report which displays some textbox and a table. In "PDF" format, if table not fit in the page it start in text page. bu i want to display some row of the tabe in a main page (that if how many rows is possibel to show) and other in text page (that rest of others rows) but it is display to all row to next page
I have a Master page i.e. .aspx and in one of the page which has the main .aspx page is incorpaorated with a .ascx page(User control page). The .ascx page is having a button. so i want to reload the page when i click on this button.Can any one tell me how can i do response.redirect in this secario.
I'm trying to dynamically change the look of my main master page depending on what nested master page that the current content page is using .
So for example.
Main master page = main.master My nested page = nested.master (uses main.master) content page = content.aspx (uses nested.master)
So in the Page_Load event of main.master I want to add a switch statement that will check to see what nested master page is currently being used by content.aspx, or whatever content page is loaded.
So far I have got
protected void Page_Load(object sender, EventArgs e) { string nMaster = //This is the line of code that I am looking for. switch(master) { case "nested.master": //all my logic here. break; } }
I have a stripped down log in form on the top of each page, user/pass box and buttom, no keep me log in or error messages. If the user enters the right credetians he is log in and user name shows up instead of log in form; if he enters the wrong info, nothing happens.
Now, I want it to happen is that if the user enters the wrong credetians, and he doesnt get log in, he is redirect to the full Log In page.