Web Forms :: Change Attribute Values - Like Image?
Jul 19, 2010
is it possible to change attribute values on a non-asp.net controls (like an image)? I can change attributes on buttons and the like, but not on images? btnID.Style.Add("display", "inline") This works for a btn, but if I try to use this code to reference image (or even just try to make the image disappear) - it does not work Further info: I am using this code on a drop down list - basically when the user makes a selection i want to remove an image (make it invisible or visible) or change its display attribute (e.g. to inline). It does work ok for a real btn - but i can't reference an image ID.
I am new in ASP.NET and I am having a problem in generating the ID of each label that I generate in ListView's ItemTemplate control. I use it like this :
I am facing challenge of changing action attribute of html form tag. As my application is on shared hosting (medium trust) environment of godaddy server, I cannot use reflection to get control adapter of html tag page. So, I cannot use the following code in my Url Rewriting module.
[Code]....
Is there any otherway to implement the same functionality without reflection?
How to change the values in gridview on text change of templated control without databind again?the value of templated text boxes should change If i change the value of one of the templated textbox then accordingly(By mathematical calculations) the vlaues of all tempated textboxes should also change.
Passing a query string value retrieved to an ImageUrl attribute of an image control using asp.net c#.
I have a page called DisplayImage and within the page_load event i was able to retrieve somevalues from the query stringhcode=Request.Querystring["ccode"].Tostring();
I am trying to change the image url of an image button in my gridview. I cannot seem to be able to do this in the code behind. Is there a way I can do this through the image buttons controls?
I have a website that uses IFrame in a page that loads other pages based on server side logic. So, if I do a View source, I would see something like this:
My question is - Is there any way, an attacker can change the src attribute to point other users to a malicious website considering that the src is determined on the server side?
I wish to change the attribute foo to something else, and the attribute bar to something else. How can I easily do this? My current version (below) stack overflows with large documents, and has an awful smell to it.
string dd=LoadedXDocument.ToString(); foreach (var s in AttributeReplacements) dd = dd.Replace(s.Old+"=", s.New+"=");
My application writes custom attributes to input controls using Helper classes. And also we are loading the UserControl dynamically so we need to use FormCollection to get the posted values. Is there a way that we can access attribute values from FormCollection object.
I have an app I am transitioning to MVC3 to see what the upgrade path is essentially. I've hit a snag. I believe I've run into a change that may be due to the changes for Dependency Injection in action filter attributes, but I have been unable to track down the cause, and the "correct" solution.This project uses StructureMap and NHibernate. The NHibernate session is started at the beginning of each request, and ends at the end of each request, thanks to a small module. This is just to give an idea of the stack involved...o I have a few custom Authorize attributes (Inheriting from AuthorizeAttribute) that perform some more complicated authorization logic for specific actions that they decorate. Part of their functionality involves using two repositories which they must either (a) have injected, or (b) get from the StructureMap ObjectFactory themselves. In MVC2 I was using option b, so that the CONSTRUCTOR of the attribute looked like this:
[Code]....
This worked fine, as in MVC2 the constructor was called each time the attribute was evaluated. This BREAKS in MVC3, where it would appear that this is no longer the case. Due to this apparent change, the FIRST time this attribute is evaluated, it runs fine, but each subsequent time, any calls in the repositories fails because it claims the NHibernate Session object hasn't been started! The reason being, as far as I can tell, that the CustomAuthorizeAttribute is created once, and then held in whatever state it exists in at that point for the lifetime of the application... Which means that the dependencies inside of it (Which SHOULD go out of scope at the end of each request, and be reinstantiated / fetched at the beginning of subsequent requests), are instead persisting with it becoming stale after the first evaluation.After banging my head against the desk for a few hours, I realized that simply moving these calls to the ObjectFactory into the AutorizeCore method made everything work again.Now, all of this was of course, a hack, because there wasn't a good easy to do real dependency injection into attributes in MVC2. I hear that is changed in MVC3, and I am wondering if this behavior is in response this change, and if so, what do I need to do to make this work?
When you are entering an attribute value, what is the shortcut to jump out of the quoatation marks? It's a lot like hitting enter after you select an enum value for, say, a color or anything like that, that is also in quatations marks. When you hit enter, it fills in the value, jumps outside the quotes and lets you happily continue coding on your way. However, in instances where you are filling out, say, an id value, there is no Intellisense and hitting enter, tab, or whatever will not jump out of the quotes.
I am trying to update the enablePasswordReset from false to true programmatically but am struggling.. This is as far as I got!
ConfigurationManager.OpenWebConfiguration(Request.ApplicationPath); var section = (MembershipSection)config.GetSection("system.web/membership"); var defaultProvider = section.DefaultProvider; var providerSettings = section.Providers[defaultProvider]; // Now what?
I have a web user control menu of page. Now I want HOME (which is an hyperlink text) in menu to be Bold at the time default.aspx Loaded (Load event)! How can I do that If any one can provide code! I am using VB .Net at back.
I created a simple Master Page in Visual Studio 2008:
<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
and got green underlined 'Master' with two warning messages: 1.Validation (ASP.NET): This attribute name must be followed byan equal (=) sign and a value. If the value is in quotation marks, the quotation marks must match. 2. Validation (ASP.NET): Attribute 'Master' is not a valid attribute of element 'Control'.How I can get rid of the messages?
I have a hyper link control and I set the NavigateURL and the ImageURL property at runtime. I also need to set the class of the image tag that it generates but I cannot figure out how I can do that. The solution mentioned here [URL] does not work because the image url is hard coded.
I'm trying to change an image's imageurl on an aspx asp.net c# page based on a variable from #var=1` (or 2, or 3, or 4)
I know nothing about javascript unfortunately which is what I've been told I need. Can anyone point me at a novice based script I can try to learn via implementation?
