Does ASP.NET always apply the "ct100$..." prefixes to element IDs, or in some cases does it optimize this away if the element is guaranteed unique anyways. Recently I have seen builds differing in the ID prefixes being applied, one having the prefixes and one not but both deriving from the same source. Can anyone provide any more detail this, and on the workings of INamingContainers and ID generation?
View 1 RepliesI'm trying to implement a custom panel control that would act as a naming container. So far here is so what I've done.
First this is my custom control, MyPanel...
[ToolboxData("<{0}:MyPanel runat=server></{0}:MyPanel>")]
public class MyPanel: Panel, INamingContainer
{
}
And I try using it like so:
<cc1:MyPanel ID="A" runat="server">
<asp:HyperLink ID="TestHyperLink" runat="server" />
</cc1:MyPanel>
<cc1:MyPanel ID="B" runat="server">
<asp:HyperLink ID="TestHyperLink" runat="server" />
</cc1:MyPanel>
Obviously it doesn't work, that would have been too easy. ASP.net still complains about there being 2 DocumentHyperLink:
The ID 'DocumentHyperLink' is already used by another control.
ASP.Net Html.TextBoxFor (and the other XxxxxFor editor helper methods) default to rendering a field prefix. How do I disable field prefixes so it simply renders the property name as the Name/ID?
Here's an example:
<%= Html.EditorFor(m => chart.Title) %>
is rendered as:
<input id="Chart_Title" name="Chart.Title" type="text" value="">
I would prefer it to be rendered as:
<input id="Title" name="Title" type="text" value="">
I'm implementing an AJAX autocomplete feature where the user types into a textbox and the webpage generates suggestions (pretty much like how Google's search box works). I got the AJAX part to work right, but for some reason, my database query does not.Let's say I want to find "Chicago". Using the following query does not find it.SELECT TOP 10 citynames FROM city WHERE CONTAINS(citynames, 'chi*')But using this query does.SELECT TOP 10 citynames FROM city WHERE CONTAINS(citynames, 'chicago')By the way, "citynames" is an ntext type field and I'm using SQL SERVER 2008.Does anyone know why my first query can't find "Chicago"? I've been staring at that query for hours, yet can't find anything wrong with it. Something wrong with the database maybe?
View 2 RepliesIs there a way to force the MVC automatically generated code to follow the conventions you have set in your preferences? For example, I keep all curly braces on the same lines as their declaring class, method, etc, but when generating a controller, it completely disregards my settings. Is there a setting someplace to force the same code generation as other parts of project?
View 2 RepliesI have the following scenario: my website displays articles (inputted by an admin. like a blog).So to view an article, the user is referred to Home/Articles/{article ID}.However, the user selects which article to view from within the Articles.aspx view itself, using a jsTree list.So I what I need to do is to be able to differentiate between two cases: the user is accessing a specific article, or he is simply trying to access the "main" articles page. I tried setting the "Articles" controller parameter as optional (int? id), but then I am having problems "using" the id value inside the controller.
View 7 RepliesI have an MVC action on my abstract BaseControlller like this (and this action is common across all inheriting controllers):
//
// GET: /controller/RenderForm/{formType}
[Authorize(Roles = "Administrators")]
public ActionResult RenderForm(FormType formType, BaseContentObject contentObject)
[code]...
Is it possible to do an optional join as follows?:
private void OptionalJoin(string phrase)
{
from t in db.Table
// (if phrase != string.Empty then) join t2 in db.Table2 on t.Id equals t2.Id
select t
}
Although I'm aware that I can copy/paste this and move the conditional logic outside the query, the query is ~200 lines and there are 4 different optional joins I would like to incorporate, so it would get messy and be difficult to maintain. I'm looking for a clean, streamlined way to do this.
I want to create a method with optional parameters in my wcf service. I am doing it like this
[Code]....
When I try to use it in my client application and try to pass the values only for first two parameters it gives me an error that"Argument not sepecified for parameter Status"
Wondering if you could give me a nudge in the right direction. I'm working on an app where I need to validate a field for a correct URL. However, this is an optional field and may be left blankI was just wondering, how can I bypass the validator if the field is null.
View 5 Repliesin vb.net while entering a new entry i want to assign a record a unique id like in case of numeric i do this way
[code]....
in this case m using itemid as a unique id and the format is 1,2,3... and m finding out the max and assigning to a new record but how to assign if the previous id is of the a00001,a00002,a00003,a00004...so on. how i do i produce a unique id in this case
I've a requirement to be able to generate PDF's within our (ASP.net) application. We need to meet the following requirements:
The text will be largely dynamic and must be added programatically. we'd like to base these generated documents off PDF templates provided by our designers. Some of the sections/pages may or may not be visible depending on certain conditions - we'd like the content to 'flow' upwards to fill the space when something is removed. Some of the pages may need to repeat, depending on certain conditions.Some of the PDF templates will be out of our control (we're populating application forms supplied by third parties), so being able to read in a blank PDF and populate it would be good.
I've looked at iTextSharp and it seems to do most of these things (i.e. I can take a PDF, edit it to include form fields where we need to fill data and then use iTextSharp to read that in as a template and populate the data), however, I'm not sure how then to go about potentially hiding whole sections and/or repeating pages.
I am trying to use the code available here to generate thumbnail images of url's that are returned as part of a search function in my website. Everything works fine when I am running through the development server in Visual Studio 2010, but when I push the code out to the server (Windows Server 2008 64bit w/ IIS 7 running in Integrated Mode) the code never returns a thumbnail. Is there something I need to do to get this working in IIS 7?
View 1 RepliesAs concluded in this thread http://forums.asp.net/t/1583508.aspx MVC 2 converts some disallowed characters in the 'id' property of tag to the HtmlHelper.IdAttributeDotReplacement but the code to do that is internal to mvc and not exposed as i can see. Will I need to copy the code into my project so my custom herlps can do the same?
View 4 RepliesI have a bunch of C# functions with string, int and bool arguments that serve as data entry interfaces. I'd like to be able to create a webform for each method; a textbox for each string/int and a checkbox for each bool.
Is there a way to automate this process?
I want to declare Optional Parameter in C#.As in VB.Net we have OPTIONAL Keyword,In C# is there any way or we have to pass all the arguments in C#?
VB.NET CODE
[code]....
I have got a problem about setting the optional parameter to NULL in sql sp. Initially I set all the parameters null in the sql sp. That's OK. But I would like to set the parameters to Null again if a particular parameter has a value of - 1 by using the "IF ELSE" statement block. However, the problem was that I was unable to set the parameter to NULL in the IF ELSE statement. So please correct my IF ELSE statement in the store procedure. This is really urgent and important for my project.
spGetMealsByNutritions]
@MealTypeID Int,
@Gluten Bit = Null,
@Dairy Bit = Null,
@Egg Bit = Null,
@Fish Bit = Null,
@Veg Bit = Null,
@Pork Bit = Null,
@Beef Bit = Null,
@Soy Bit = Null,
@Sesame Bit = Null
[code]...
What is the best way to handle following situation? A dropdown(for master table) is optional in a particular form. But, In database table the field is constrained with foreign key. If user don't select from dropdown then It creates problem because of foreign key. One solution is to create default option in master table and use it in case of blank selection. but in dropdown, we need to handle this to show on top. Is it perfect solution?
View 1 RepliesI have a timespan ts that has mostly minutes and seconds and sometimes hours. I'd like to format a string that'll give these results depending on the data
3:30 (hours not displayed, showing only full minutes)
13:30
1:13:30 (shows only full hours instead of 01:13:30)
So far I have
string TimeSpanText = string.Format("{0:h\:mm\:ss}", MyTimeSpan);
but it's not working.
the very famous actionlink:
<%: Html.ActionLink("Back to List", "Index")%>
Now, this link is in my Details view. The Index view is a search page. The url of that looks like this:
[URL]
as you can see, quite the amount of parameters. Obviously I want to keep all these parameters when I return to the Index page, so I need to add them in the ActionLink.
now, I'm tired of doing that manually, it's ok for 1, but not for 6. This should go a lot easier.
question: How do I return All parameters of the current url into the actionlink as optional routevalues.
I've been looking to Request.QueryString. It has to be something with that. I was thinking of writing some static method in Global.asax doing the job but no luck yet. maybe there is an easy way to do this which I dont know about??
Edit: This is what I came up with (which works)
[code]....
I'm starting a port of an existing ASP.NET Web Forms CMS to ASP.NET MVC and want to get the routing right from the start.Note: it isn't important to have the exact same URL structure.I think this answer is close to what I'm looking for but would like some additional input should anyone have it.
?Content=News/CurrentNews/This_is_a_news_article
?Content=Corporate/About_Us/Overview
[code]...
I have a controller method that is called with many different combinations of URL's. To overcome issue i am using optional parameters.here is my controller method signature...public ActionResult localMembersSearch(string Gender, string calling, [Optional]string Region, [Optional]string County, [Optional]string Town, [Optional]string queryvalues)the first two parameters are not optional but always expect
View 1 RepliesI want to add optional parameters in my routing table.For example I would like the users to browse a product catalog like this:http://www.domain.com/browse/by-category/electronics/1,2,3 etc
routes.MapPageRoute(
"ProductsBrowse",
"browse/{BrowseBy}/{Category}",
"~/Pages/Products/Browse.aspx"
am to add optional parameter to pass these in a method the parameter may vary every time.And i need to pass these parameter to a method, so my question is how should i add these optional parameter to a collection and what kind of collection object should i use and how should i use that.
View 1 RepliesI am working on an add-on component that needs to play nice with other similar add-ons. There is a 3rd party component that decided to implement the functionality a little differently than the default. What I am trying to do is call an overload of a method that only the 3rd party component has, like this:
Select Case True
Case TypeOf provider Is 3rdParty.Provider
result = DirectCast(provider, 3rdParty.Provider).GetNames(method, True)
Case Else
result = provider.GetNames(method)
End Select
Unfortunately, the DLL that contains 3rdParty.Provider is optional, so this code will give compile errors if it is not present. How can I accomplish the same thing but make it safe to run whether the 3rdParty.Provider.dll is present or not?