DataSource And DataMember Property By Code

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here is what i want to do:

object DataSource_m;

public object DataSource
{
get
{

return DataSource_m;

}

set
{

DataSource_m = value;

}

}

this property is for a Custom Control.

Now When I add this Control in a form and go to its property window I get A property as DataSource as expected, in the designer mode.

when i click the DataSource Property to attach a databse, i dont get the "Add Project DataSource" option in the property, which we usually get in the DataGridView Control's DataSource Property......

what attributes should i use to get That.

SCREENSHOT:

http://adieu.webs.com/Images/Untitled.bmp

Posted 28-Jun-10 10:39am

OWDARO

Updated 30-Jun-10 8:13am

v2

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TheyCallMeMrJames · Answer 1 · 2010-06-28T10:46:00

Solution 1

Hey there,

There is a walk through here[^] on MSDN that you will find helpful.

The key thing you're likely missing is adding the attributes required to pick up those properties.

Cheers.

Posted 28-Jun-10 10:46am

TheyCallMeMrJames

Comments

OWDARO 30-Jun-10 13:26pm

thank you very much for it my friend but i even tried the attributes.
that also doesn't work.....
well i will see ur link too now and will tell u whether i was successful or not...
thank u once again

William Winner · Answer 2 · 2010-06-30T08:25:00

you can simply do this:

C#

using System.ComponentModel;
//more using statements

public class YourClass:SomeControl
{
    object DataSource_m;

    
    [AttributeProvider(typeof(IListSource)), RefreshProperties(RefreshProperties.Repaint)]
    public object DataSource
    {
        get{ return DataSource_m;}
        set{ DataSource_m = value;}
    }

}

[Update: you'll probably also want the RefreshProperties Attribute]

[Response to comment]
This is my class:

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
namespace TestFormCSharp
{
    class MyDataSourceClass:Control
    {
        object dataSource_m;
        [AttributeProvider(typeof(IListSource)), RefreshProperties(RefreshProperties.Repaint)]
        public object DataSource
        {
            get { return dataSource_m; }
            set { dataSource_m = value; }
        }
    }
}

and this is what I get:
http://yfrog.com/bfscreenshotdatasourcej[^]

If you're not getting the same, then you'd have to show us more of your class declaration and/or tell us what version of VS you're using...if you're using VS;