Solved

How add attribute with enum to control?

Posted on 2009-04-06
5
347 Views
Last Modified: 2012-05-06
How do I add an attribute to a custom control that takes an enum as its argument.  For example (in psuedo code):

[SetProperty1(SomeClass.Enum3)]
class MyControl() : Control
{
  MyControl(){
    int attributeValue = passedInEnumValue;}
}

I'd like to do this for web and winform controls.
0
Comment
Question by:brettr
  • 3
  • 2
5 Comments
 
LVL 29

Expert Comment

by:anarki_jimbel
ID: 24083540
Shouldn't be a problem. See my example for a very primitive control. After I build a solution I can drag the control from the toolbox onto my form. In the properties window I can see the property MyCustomProperty and all enumm members in a dropdown list.

    public class MyEnums
    {
 
        public enum Enum1
        {
            Enum1Item1, 
            Enum1Item2,
            Enum1Item3 
        }
    }
 
===================================
 
        public MyUserControl()
        {
            InitializeComponent();
            this.BorderStyle = BorderStyle.FixedSingle;
            this.BackColor = System.Drawing.Color.Red;
        }
 
 
        private MyEnums.Enum1 _customProp;
        public MyEnums.Enum1 CustomProperty
        {
            get { return _customProp; }
            set { _customProp = value; }
        }
    }

Open in new window

0
 
LVL 29

Expert Comment

by:anarki_jimbel
ID: 24083548
if this is not what you want - explain what do you need this attribute for?
0
 

Author Comment

by:brettr
ID: 24083793
I need an attribute because a designer will rarely be used.

I want to provide the control with a role.  It will then decide to show/hide based on the user being in that role.
0
 
LVL 29

Accepted Solution

by:
anarki_jimbel earned 500 total points
ID: 24084042
Hmmm... Don't think there is anatrribute you need. Still, you may try to create a custom one:
http://aspalliance.com/778_Attributes_and_Reflection_in_C

I'd choose another way...
0
 

Author Comment

by:brettr
ID: 24084086
Yes - that's a bit involved just for an attribute.

I could overload the constructor and pass in the role value, since the control may not use roles in some cases.  But if it does, the call will supply it via a constructor.  Is there a better way for this?
0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
In a recent question (https://www.experts-exchange.com/questions/28997919/Pagination-in-Adobe-Acrobat.html) here at Experts Exchange, a member asked how to add page numbers to a PDF file using Adobe Acrobat XI Pro. This short video Micro Tutorial sh…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question