Web Forms :: Cannot Access Control Id From Code Behind (c#)
Feb 18, 2010
I have a .aspx page that inherits from a class (Hmp.Web.Lib.HmpWebPage which actually inherits System.Web.UI.Page) . The code behind for my page starts like this.
public
partial
class
FnmMessagesEdit : Hmp.Web.Lib.HmpWebPage
I have several checkbox controls on my web form that are not server controls (runat="server") How can I access these controls form my C# code? Can this be done with document.GetelementById from the server side using C#? Or some other technique?
I am not allowed to make these server controls (runat=server) because of a requirement.
I have an asp.net 3.5 WebSite application where I have a bunch of UserControls.
In some scenarios I have a reference of type Control (System.Web.UI.Control) that I need to cast to a specific User Control type (to access public properties and methods of the User Control).
The User Control classes are all declared in "the global scope", i.e. not within a namespace. However, for some reason, only some of my User Controls is possible to type in a code file and show up in intellisense and some just wont. In one scenario I could write the cast in code anyway and the site would build (but the UserControl type name did not shift in to the ordinary class name color (light green, you know) in VS text editor), but when running the page I still get the error message about missing using directive or a reference...
If I use the VS 2010 "Navigate to" feature (Ctrl+,) and search for a type I usually get one hit for the Type/Class name and another for the actual file. When searching on my User Control class names I only get the file hits, no class representation. This even goes for those User Control types I actually can access in code.
I've tried to compare the User Control classes that work and doesn't work, but I can't find any difference, they are all declared as public partial.
tbDisplay is a "text box" asp:textbox control. I need to replace de 'Messages' for avariable. so instead of printing "Messages" all the time, I can change the information on the variable prior to display the message. how to change 'Messages' to a variable.
I have a user control called adminMenu and I use it in my index.aspx and all is fine, but I need to access a MenuItem in adminMenu and need to change NavigateUrl on the MenuItem. Tried this code with no luck:
Not sure if I should be accessing adminMenu properties from controls code behind, but when I try from controls code behind was not able to access it either.
I'm building form validation controls for our C# ASP application. The bulk of the work is handled by a BaseValidator control (subclassing System.Web.UI.UserControl), which also has the markup for the validation output. This is then extended by subcontrols like PasswordValidator, that provides the Validate method and any extra fields needed by that validator control.
(The end goal is to have controls like <uc1:PasswordValidator ControlId="txtPassword" /> which we can plop into any form with minimum duplication.)
However, PasswordValidator.ascx.cs cannot access the form elements defined in BaseValidator.ascx; the only way I've found to do so is to duplicate the markup in each subcontrol's *.ascx file. How can I extend BaseValidator.ascx.cs and access BaseValidator.ascx's markup in the subclass?
I have been asked to support a legacy app and I can't get access to the code behind files. I need to add a new feature that gets a list of items from the database on page_load, what way would adding an "in-page" page_load affect the compiled page_load?
I am dynamically creating div tags in my code behind and adding code into the innerHTML property of the div tag and then rendering out the html to replace values inside of a table structure that I have, I then place all the table code onto the page. I want to be able to access the div tags again from the code behind, but can't seem to because well obviously they aren't set to runat="server". Is there any way to do this or to set them so they can runat server.
I'm having trouble accessing custom profile properties that I've declared in my web.config using the TableProfileProvider available at [URL] I set everything up according to the instructions but keep receiving an error stating "The type or namespace name 'Profile' could not be found" whenever I refer to the Profile object in my codebehind. My web.config is:
I need to access a control inside a repeater and change its properties. To enable it or not. I got an erorr message Object reference not set to an instance of an object. Here is my code inside a method. protected void
rptCAP_ItemDataBound(object sender, RepeaterItemEventArgs e) { LinkButton lnDel = (LinkButton)rptCap.FindControl("lnkDelete"); lnkDel.Enabled = false; //<<<<< this is where the error occur }
I have a calendar control in which i am loading data from db using the below method.
[code]...
What i want to achieve is in the selection changed event of the calendar.I would like to access the calendar selected cell value.I tried to look for a event in the selection changed method but unable to come up with any.Let me know if anyone came across this and able to access the value in the selected cell control value.
I have a parent control and a child control. On parent control load I am setting a cookie value. On child control I am checking if this cookie is not null then call parent control's CalculateDeliveryAndTax() method. How should I go about accessing from child control, parent control's CalculateDeliveryAndTax() method.
I have a 2 textboxes in a Login View on my Content Page (login.aspx) and Login Button outside of Login View. I want to pass the values of those textboxes to the members of class when user hit Login button.
I have User.cs class which contains TxtLogin and StrLogin.
[Code]...
When I debug the program and enter correct username and password it should show me "Thank you" rather than it is showing me "Enter valid Username and Password".
I have a Web Site project running on VD2008, with an Access back end and .NET 3.5, C#.
I have created the project several times and added the usual App_Code, Pages, App_Data, Properties, folders. I created a Master Page and several content pages BUT I am unable to get to the folders or root where there is a Class (code) file.
I have tried all the usual lines...
using SumaCard.App_Code
OR
SumaCard.App_Code.FTP_Code ftpc = new SumaCard.App_Code.FTP_Code();
but nothing works? I have been hasseling over this for 2 days now.
What have I missed? Maybe I built the project wrongly? (Project | New Project | Visual C# | Web | ASP.NET Web Application |??
