Controlling web control instances on Web Form
I have created a composite control, extending functionality of the Hidden Control. However, I would like to prevent the user from adding this control to the page multiple times. I only want one instance of the control on the Web Form. What setting in my project to I adjust to enable this functionality? I can not find it in any of the books that I have referenced. Is this a setting or is this code that has to be added to the inheriting class.
Looks like there is no standard apporach. But I'd consider using static field to count number of created objects and throw exception if second object ...How do you expose an event from a server control within an user control on an web form?
I have a calendar inside of an user control Simple.ascx The user control is sitting on my web form Simple.aspx. How do I access the VisibleMonthChanged event from my web form Simple.aspx? Is it possible?
Create Event in usercontrol which fires on page when VisibleMonthChanged event fires on usercontrol.
Jigar Desai-----------------------Do not forget to "Mark as Answer" on the post that helped you.
Ok, I created the event
Public Event MonthChanged()
Then I add the follow to Simple.aspx.vb
Private Sub Simple_MonthChanged() Si...Dynamiclly added web control in a web control problem?
I have a small problem...I have a web control, that creates dynamicly some other my custom controls and add these to itself. But when there is a postback, how can I get the information of the dynamiclly added control.
Here is my example:(I have simplified)
1 DropDownList d;
2 protected void Page_Load(object sender, EventArgs e)
4 d= new DropDownList();
7 d.AutoPostBack = true;
8 d.SelectedIndexChanged += new Event...Web Custom Control within a Web Custom Control
I was wondering if this can be done and how. I've created a simple custom control that displays a header which is my first custom control. So I'm just a baby when it comes to this..
Within the header I currently have a property for breadcrumbs which is a string.
What I would like to do is have the breadcrumb property be a Link Button List. I did find a custom control of a Link Button List which is exactly what I wanted. My question is how can/do I include this into my custom control?
Can it done? How? Please help? I'm at a lose here.
You should be able to do ...how to call controls of web control form in coding of other forms?
hello everyone i have one problem i have created one webcontrol shoppingcart in which there are two labels one of qty and other of amt which are initially enable =falsenow on other page(aspx page) i have one txtbox of qty as txtqty i want tat as soon as user enters qty txtqty and clicks on add cart button it shd be display d value in lblqty of web control shopping cart make sure i m using datalist on aspx page so give me suggestions on tat basis and my coding is in vb. plz give ur suggestions as fast as possible. Neeti
what do you mean by webcontrol.... it this user control or normal ...Custom Control within a Control Control
I am developing a custom controls that will render headers for different web sites. Within these controls, I want to place another custom control that will change the language. I created the language control and had it implement IPostBackDataHandler. This control works fine if I drag it on a new web form, but if I tell a header custom control to render it problems occur. The Language Selector custom control does not have a Page member anymore and the event handlers do not work. Does anyone have any experience with doing something similiar? Anyone have any suggestions?
...Web control in web control
Hi,There are two simple web user controls A and B, where B contains A. They just display the bunch of text boxes, so I do not need them even in tool pane. They sit in the same project next to web form.I noticed that web user control put on ASPX page does not appear in code behind, but if I create it with protected keyword and name being exactly the same as id it works fine. I can access such a web control from code behind and see the value assigned in IE. The problem is that the same routine does work for my A web control in B. When I assign the value IE, I keep getting null reference. ...How to access individual controls from a form containing the web user control containing those controls
Below is a block of code in my .aspx form named default.aspx. In this form I load a web user control. I then add it to a place holder control.(Lines 3 and 4 below) So how do I access the individual controls in my web user control? I want to set the properties on those controls, but I am baffled as to how to access the control. For example I have a text label control named "label3". How do I access this control.
Because for example, under certain situations I want to hide that control. ( Label3.Visible = false;)
2&nb...controlling an object in a web control from the page the web control is placed in
I have created a web control in vb.net that has an image button and an image. when it loads the image button is visible and the image is not.
I want to be able from the page which "includes" the web control to set the image button to invisible and the image to visible.
When I tried this, the main page didn't recognise the image button or the image (both < asp: objects).
help would be gratefully appreciated.
oh yeah, it's inline code so any code behind stuff will just confuse me ;)
Some code please.-- Justin Lovell...UpdatePanel within a web user control resets data of controls outside the user control
I have a usercontrol on my page which displays a running marquee text. It makes use of an UpdatePanel (within the user control) to refresh the marquee text (within the updatepanel) at periodic intervals. For this I added a timer control and its tick event as an async postback trigger for the UpdatePanel.
I have a lot of textboxes and dropdown list boxes (all with runat=server) on the page outside the above user control. These are also contained in different UpdatePanels.
Problem is, when the user control does a postback to refresh the marquee text, it causes some of...User Control Within UserControl
If I have a user control A and then inside it a user control B embedded/referenced within it. User Control A has a panel defined (cpeNewUser) that I want to manipulate from the code behind of User Control B based on some event that happens.So putting this in my code behind of User Control B won't work as it has no idea of cpeNewUser:cpeNewUser.Collapsed = true;So is it because only at runtime they are married up and because of this you cannot access each other's objects at compile time? How would I get this to work becuase I'm using all user controls inside a AJAX Too...Adding ajax extenders to custom controls added at runtime within a wizard control
I have a problem where i have a web page (inheriting from a master page which contains the scriptmanager control) containing a dynamically created wizard control. At runtime i add the steps from custom controls i have created, basically simulating content etc. Now - when i try to add ajax extenders to the custom controls it errors out on load and says that the controls havent been registered - have scoured the web but cant seem to find any info re what the cause/solution is - help please.
Hi, What exactly the error says?
Did you look into your web configuration file (web.c...Retreiving a value from a web form within a web user control
I have a page (web form) that retreives some data from a database. To be more specific: at some point when user clicks a button (in the web form) there is some ID number retreived from a database in code behind. At the same time the Visible property of the nestet web user control is chamged to true. I want than forward the ID to the web user control so that a grid view can load data from a database for that ID.
How can I access that data (the ID) within a web user control context nested in that page?
Check this ;ink
http://www.codeproject.com/K...access controls on web user control x from web user control Y
I have 2 web users controls in a page and I would like to get or set the selected values of a few dropdown boxes on web user control X from web user control Y and I also would like to know how to access functions that are on a web user control X from a web user control Y, is this possible? How can I do it?
Using PropertiesIf the Sample.ascx control has two textboxes and submit button.You can access the valu...