custom control macro properties

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Eddie Foreman 215 posts 288 karma points

Aug 23, 2010 @ 16:26

UI Questions

Hi All,

First, sorry for all the topics today. I've a class that I need to load into a macro. So that the user can edit the public methods. I could not get the properties to appear and so as a test to isolate the problem, I used the following:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace hello
{
    public class test
    {
        public string SiteUrl
        {
            get { return _hello; }
            set { _hello = value; }
        }

        private string _hello = "hello Umbraco :-)";
    }
}

The dll is hello.dll, so in the .Net Custom Control macro fields. Assembly is set to hello and type to test. I get the error:

Error reading hello

System.NullReferenceException: Object reference not set to an instance 
of an object.
   at umbraco.developer.assemblyBrowser.Page_Load(Object sender, 
EventArgs e) in 
d:\TeamCity\buildAgent\work\7380c184e9fcd3ea\umbraco\presentation\umbraco\developer\Macros\assemblyBrowser.aspx.cs:line
 60

Any ideas?

Thanks

Eddie

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Ismail Mayat 4511 posts 10090 karma points MVP 2x admin c-trib

Aug 23, 2010 @ 16:54
1
Your class needs to inherit from System.Web.UI.UserControl or if the macro is going to be based on .net custom control you need to inherit from
- System.Web.UI.Control
- System.Web.UI.WebControl
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Bijesh Tank 192 posts 420 karma points

Aug 23, 2010 @ 17:47

0

For the type, try hello.test (i.e. [namespace].[class])

Then try the browse properties and it should appear.

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Eddie Foreman 215 posts 288 karma points

Aug 23, 2010 @ 18:43
0
Hi Ismail and Bijesh

Thanks for your replies.

Ismail, have tried to inherit from System.Web.UI.WebControls, but the same error appears. Not sure on how I would inherit from both System.Web.UI.Control and System.Web.UI.WebControl.
```
namespace hello
{
    public class hello : System.Web.UI.UserControl
    {
        public string SiteUrl
        {
            get { return _hello; }
            set { _hello = value; }
        }

        private string _hello = "hello Umbraco :-)";
    }
}
```
Bijesh, I'm afraid I stil get the error.

Thanks

Eddie
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Ismail Mayat 4511 posts 10090 karma points MVP 2x admin c-trib

Aug 24, 2010 @ 10:02

0

Eddie,

What version of umbraco and .net framework are you using?

Regards

Ismail

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Bijesh Tank 192 posts 420 karma points

Aug 24, 2010 @ 10:37
0
This should work. Just tried it out in a test solution
```
namespace test
{
    public class hello
    {
        public string SiteUrl
        {
            get { return _hello; }
            set { _hello = value; }
        }
 
        private string _hello = "hello Umbraco :-)";
    }
}
```
And then setting the Assembly to the name of the compiled dll (minus the .dll extension) and the Type set to test.hello. Make sure to save the macro first when you have edited the assembly and type fields, then browse properties.

This post may also help http://our.umbraco.org/forum/templating/templates-and-document-types/6803-How-to-connect-a-custom-control-to-a-macro,-newbie-question
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Eddie Foreman 215 posts 288 karma points

Aug 24, 2010 @ 11:33

0

Hi Guys

Interesting, not changed a thing and can now load on the control properties using hello.hello on the test class.

Must be down to a good nights sleep : -)

Thanks again to you both

Eddie

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Bijesh Tank 192 posts 420 karma points

Aug 24, 2010 @ 11:36

0

Glad you got it working :)

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