Expected Class, Delegate, Enum, Interface, Or Struct?
May 19, 2010I am getting this build error on the following line of code, and do not find anyhting wrong there.
public partial class _Default : System.Web.UI.Page
{
}
[code]...
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Aug 11, 2010I am getting the same error (as this post: http://forums.asp.net/p/1346731/4020966.aspx) as expected class,delegate,enum,interface or struct and also type or namespace definition or end of file expected.Below is the code:
public
partial
class
[code]...
How To Create Enum Class
Jan 23, 2010 i have tables like Lookup and lookupvalues in the lookup table like and lookup values like
LookupId LookupName | lookupValueId lookupId Name
1 Country | 1 1 Usa (country)
2 State | 2 2 All(state)
3 Relation | 3 2 Colarado (state)
4 3 agenttoClient(relation)
now i want create enum class form databse
my req is
enum lookup{
Country,state,Relation(these should be come from Databse when ever application intialised)
}
now i able acces lookupvalues
lookup.country.1=>USa
lookup.State.1=>All
lookup.State.2=>Colorado
lookup.Relation.1=>Agent to client
C# - Adding Delegate Or Event Property To Class?
Oct 4, 2010I created a control where other developers can create an instance and use. There is a button click in the control. How do I allow developers to plug in their own code in a certain part of my control? I am not sure if or how exactly to use a delegate or event in this scenario.
[code].....
How to I update MyControl to allow this?
Use Abstract Class And Interface Class?
Jan 29, 2010When to use Abstract class and when to use Interface class.
View 10 RepliesC# - Specified Cast Is Not Valid. Enum / Try Also Enum.Parse But Didnt Work?
Sep 28, 2010whats wrong with this code, i try also Enum.Parse but didnt work.
public enum RoleNames
{
Administrator,
[code]...
Architecture :: Use A C# Class Or A Interface?
Feb 3, 2011I have a block of SQL statements that I like to use as a sort of function.
I was thinking that I could make a class and inherit all of the master function, then add the parts that I need for other sections of the program in a sub class.
The problem is, up to this point I've been programming ASP .Net through visual studio, and it's kind of just programming behind controls. I'm not sure where to put the class/function/method/interface, or whatever we call it.
Of course you probably know that visual studio creates a bunch of partial classes when you do an ASP. Net application... so.. to get access to a function like object, across classes.. use an Interface?
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Jan 23, 2011I have created a Slider User Control which implements ISlider Interface.I have some methods like SetValue below which should accept both ISlider types and standard Slider control type.Am I'm obliged to use this heavy syntax is there any shortcut?
public void SetValue(Object slider, Double value)
ISlider ISlider;
ISlider = slider as ISlider;
if (ISlider != null)
ISlider.Value = value;
((Slider)slider).Value = value;
Set View Properties From Another Class / Interface?
Nov 16, 2010There is a SearchPage which has a properties ErrorMessage, SuccessMessage etc. This is basically a MVP pattern so for each page(view) there is IView that contains definitions for all the properties
I am using decoratoe pattern to set these peoperties dependingon the message type. There is another Interface IBaseMessage which has a method DisplayMessage() and a class BaseMessage which implements the interface. This class has a definition of the view
Interface IbaseMessage
{
DisplayMessage()
}
baseMessage:IbaseMessage
{
public Iview _view{get; set;}
DisplayMessage()
{
_view.Warning ="<message>"
_view.error="<message>"
}
Here, I am not able to set the message to the view properties. I am getting the error as "Object reference not set to an instance of the object"
There Is No Interface Definition Of Rwuser Class?
Mar 5, 2010I have a Class RWuser(base Class)it has diff methods agent is another class it is inherited the base classit has diff methodsfor the above classes i am writing interface definitions in the constructor of a classthe above in one project and i am creating one more project and add ref of the above to this one when i am calling Child Class(Agent)it giving error like there is no interface definition of rwuser class
[Code]...
MVC :: Cannot Create An Instance Of The Abstract Class Or Interface?
Dec 12, 2010Error 1279 Cannot create an instance of the abstract class or interface 'System.Web.Mvc.FileResult'
[Code]....
I am using MVC 2. The same code works in my onather application. I have no idea about this error.
Create A Log Everytime When Methods In An Interface Class Are Called
Dec 30, 2010I want to update a log file(txt) everytime when methods in a an interface class are called? Is there any way to do this other than writing code in every method to create log?
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Mar 8, 2010I've made an interface called ApprovalEvent in a separate file with the namespace myproject... I've also made a class called PurchaseOrder... it's also in the same namespace, just in a separate file. Whenever I try to make PurchaseOrder implement ApprovalEvent it always says that ApprovalEvent is undefined...
How can I make the class recognize that the interface exists but is in a different file?
Here's some code:
[Code]....
Alternative For Static Method In Interface - Enforce Implementing Class-level Methods
Oct 28, 2010I have a hierarchy in my website project as below:
[CustomControl1 - folder]
- CustomControl1.ascx
- CustomControl1.css
- CustomControl1.js
I load css and js files dynamicaly based on which controls are used on particular page. I am doing it by using following code:
[code]....
where AddLinks method adds HtmlLink controls to Page.Header with href attribute set to coresponding css and/or js file.
I would like to add Interface that would force new controls to have AddLinks method but it is impossible since it is a static method. Because my custom controls inherit from Control class I cannot use abstract class and/or virtual methods either. How can I achieve my goal?
Web Forms :: How To Use Struct In Code Behind
Mar 4, 2010I want to use a struct in my code behind, but Im not getting intelli-sense, so I must be declaring ti wrong here is the relavent code.
[Code]....
Now when I type tjSelected. I would expect intelli-sense to kick in but it doesn't.
Custom Server Controls :: Implementing An Interface From A Class Library In A Custom Control?
Jul 8, 2010I'm building an n-tier application, with the web client and the class library separate. I'm also using the factory pattern of development, using interfaces to act as containers for different objects they are associated with. The problem I'm expreriencing is that I declared a public interface class in the class library and I can create an instance of it in in my aspx pages but whenever I declare it in my custom control code-side, i get an error, like so:
Error 20 The type or namespace name 'IContentMaker' could not be found (are you missing a using directive or an assembly reference?)
notge that I have inherited the class library namespace using the 'using' keyword just in case you are wondering. My code is like so:
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using TQO_Classes ; //importing the class library project
public partial class PageContentMgr : System.Web.UI.UserControl
{
private IContentMaker _data; //this line throws the error, it works fine on aspx pages
C# - Binding A Generic List Of Type Struct To A Repeater?
Aug 19, 2010I've had a bit of a problem trying to bind a generic list to a repeater. The type used in the generic list is actually a struct.
I've built a basic example below:
[code]....
I then create two fruits using the struct (apple and orange). These fruits are then added to the list.
Finally, I bind the generic list to the DataSource property of the repeater...
The markup looks like this:
[code]....
I expect to see the fruit name and price printed on the screen, separated by a horizontal rule.
At the moment I am getting an error relating to actual binding...
**Exception Details: System.Web.HttpException: DataBinding: '_Default+Fruit' does not contain a property with the name 'FruitName'.**
Declaration Expected / Get The Error Declaration Expected @ PostData?
Apr 21, 2010What am I missing here?I get the error Declaration Expected @ myPostData=
[Code]....
Dim encoding As New ASCIIEncoding()
Dim RateXML
As
String =
"123"
'Format the Data
Dim myPostData
As
Byte()
myPostData = encoding.GetBytes(RateXML)
^^^^^^^
Translating C# Delegate To VB.NET?
Nov 19, 2010I am trying to translate or convert C# code that a friend gave me. I have limited C# knowledge but was going along OK until I hit the following code that includes a delegate. I cannot figure out how to get the equivalent functionality in VB.NET. I'm using
.NET 2.0 and VS2005.
public bool TryGetRedirectMatch(UrlContext url, out RedirectMatch match)
{
if (url.Path.StartsWith("/product.aspx", StringComparison.InvariantCultureIgnoreCase))[code]....
How To Apply Delegate And BeginInvoke
Mar 12, 2010I am working with .net 3.5 and making application in asp.net. I show some application which is make in C# in Windows form where i see following code in class level declaration
[Code]....
and following code in form load
[Code]....
and following code in some event
[Code]....
Now my problem is I am making application in asp.net code behind VB.net where I cannot how to apply all this in my application. I more confuse with Delegate and BeginInvoke. I read somewhere that to use BeginInvoke in VB you should use Ajax.
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Dec 14, 2010In my code behind on a button click event I want to set the text of a label to inform the user where in the process we are. How do I create a delegate to allow the label to get updated
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Jun 28, 2010I am using ASP .NET and C#, and using the code-behind-pages concept.I am trying to implement a business delegate pattern in ASP .NET to reduce coupling between the presentation and business tiers.I want to have several ASP pages send information (through asp buttons clicks) to a "business delegate" ASP page, which will in turn send the necessary information to a C# method.The problem is that each button_click event in ASP .NET is directly tied to a C# method. I am having trouble understanding how to separate the presentation and business logic because of that.
View 1 RepliesAJAX :: Protected Delegate Sub AsyncTaskDelegate ()
Sep 2, 2010 I am trying to get this to bind to a gridview, without any luck. I would like each asynctask to ultimately return seperate datasets, but for now I can deal with the same one being returned.
[Code]....