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 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 ...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...Datagrid not refreshing in Parent web control even after re-binding from Child web control?
Hello ....., I have dropped a web user control (B) in one my web user control (A). Now (A) contains control (B). After proving some data in (B) to be binded to the DataGrid control used in (A), I call the DataBind. When debugging the Items, the Count property shows the number of Items correctly, but the datagrid doesn't seems to have rendered the updated datagrid content. Please help me out of this problemThanx and Regards,Hemant...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...HTML Controls vs Web Form Controls
I have a page with both controls (HTML and Web Form Controls). I am trying to use an html Calendar control and then get the date selected by the user and put into a Web form input field control. When I try to run this the HTML control cannot talk to the Web form control.
Please post some code so I can help u.
Hi here is the Code. Also I added a web form text input control and an html text control and created a fu...Add .Net Control to Web Custom Control
I want to add .NET Control (like: TextBox, Button...) to Web Custom Control.How i can do it? Alphavn
That's called a composite control -- "Mark As Answer" if my reply helped you --
What gunteman said, that is one approach and in most cases the right one.But its also possible to add child controls to a Control thats inherit from WebControl itself.
Be sure to implement INamingContainer to that inherited Control too, thats the important point of that approach.--Microsoft MVP - Visual Developer ASP / ASP.NET- http://www.aspnetzone.de/blogs/peterbuch...Web form Controls vs HTML controls
Hi, can anyone explain me the difference between Web Form Controls and HTML controls? What is their usability and disadvantages? Can i write code behind HTML controls?
Thanx in advance.
Yes, you just have add "runat=server", in your HTML control.
The Web Server Control, have more funtionality that the HTML controls.
With Web Server Control, you can work easy with Data. Too, you have controls as AdRotator, WebCalendar and more... : http://samples.gotdotnet.com/quickstart/MCP Sergio Tarrillo
Here are the Recommendations from Microsoft ....when to use 1 over the other...Accessing web controls from within a DataGrid control
Could someone tell me how to access other web controls from within a datagrid control? I have a ListBox control in a DataGrid, but can't figure out how to set the ListBox's datasource from the code behind.
Any help would be great appreciated. Thanks.
With the DataGrid you have the ItemDataBound event, where you can find any web control that were added to it, for each row listed in the DataGrid.
Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound
If e.Item....web controls and web user control
i have a problem in a web form ,
I have a webform that contains a web user control which in turn contains a html input form ,the web control events don't fire up ,When I click button ,no effect ,I don't know what is the effect of the html form which is in the web user control on the web controls in the web form ??
can any one help me
the web control event should be handle in the code behind page, is the event handler for the button you are clicking registered? You can try double clicking the button, should give you the default btn_click event handler in code behind.
Also, make ...Use Web Control In a Web Control
Is this possible?I am working with an aspx page that consists of many different web controls.One of the web controls contains search criteria. One of the criteria is a date range where I am trying to add a popup calendar --> which is another web controlCan I register the popupcaledar control on the questionaire control? I have tried, but nothing seems to be registered.Any ideas will GREATLY help.Relax and have some Home Brew!Prosecute the Owner - Don't PERSECUTE the Breed!Breed Specific Legislation targets the WRONG end of the LEASH!
Without seeing your code we can'...How to place a DataGrid Control with in a DataGrid Control
I want to place a DataGrid control in a DataGrid control can any one plz tell me the procedure to place the control
Thanks in Advance
<!---<asp:DataGrid ID=dg_List runat=server><Columns><asp:TemplateColumn><ItemTemplate><asp:DataGrid ID=dg_List2 Runat=server></asp:DataGrid> </ItemTemplate> </asp:TemplateColumn> </Columns> </asp:DataGrid> --->