Composite Controls

origjones · August 31st, 2006, 08:45 AM

Hi all.

I'm in the process of creating a composite control using C# and Visual Studio Prof 2005. The control takes an Image Url as one of its properties and this is defined in the component as:

//snippet of code

private String _FirstImageURL;

[
Category("Images"),
Description("The URL of the Image - e.g ~/images/first.gif"),
Browsable(true)
]
public String FirstImageURL
{
get { return _FirstImageURL; }
set { _FirstImageURL = value; }
}

//end code snippet

However, this doesn't give the desired effect when the component is being used in a project. Where the built in ASP:Image component has a button in the properties to allow the programmer to browse for the image within the current project, mine is just a normal text box.

I have tried many different ideas including changing the type from String to Image in the component code.

Does anyone have any ideas of how I can achieve this browsing option in the property of my component?

Thanks in advance,

Orig. :)

(p.s. please let me know if you need me to explain it better, I realise I might not be explaining this very well!)

Imar · August 31st, 2006, 09:41 AM

Hi there,

Try adding an Editor attribute like this:

Code:

[EditorAttribute(typeof(System.Web.UI.Design.ImageUrlEditor), typeof(UITypeEditor))]
public string ImageUrl
{
    get
    {
        return imgUrl;
    }
    set
    {
        imgUrl= value;
    }
}

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004
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origjones · August 31st, 2006, 09:58 AM

Hi Imar.

Thankyou for your help, it worked perfectly,

Orig.