ComboListBox SetSelected fails in MDI applications

[Tim Jackson]

I have a form, with a single control - ComboListBox. I bind that control to a datasource using datasource, displaymember, and valuemember. I display that form. In either
the load event or instance of the form, I can have code to SetSelected to true for any two items. If that form is part of an application where the mainform is an MDI form, that SetSelected does not work. If that form is part of an app where the main is NOT an mdi form, it works fine. Exact code both projects.

Weeeeeeird.

Tim

[Arun Srinivasan]

Hi Tim,

Which version of Essential Tools are you currently using? Also, we do not have a ComboListBox control so are you using the ComboBoxExt control along with the Windows Forms ListBox? Can you update us with details so that we can try to set up a sample and take a look at this issue?

Regards
Arun

[Tim Jackson]

Do too, do too. :)

Syncfusion.Tools

ComboListBox ClassSpecifies the list box used in a ComboBoxAdv.

For a list of all members of this type, see ComboListBox members.

Inheritance Hierarchy

System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
System.Windows.Forms.ListControl
System.Windows.Forms.ListBox
Syncfusion.Windows.Forms.Tools.ComboListBox

Syntax
[Visual Basic]Public Class ComboListBox
Inherits ListBox
[C#]public class ComboListBox : ListBox
[JScript]public class ComboListBox extends ListBox
See Also
ComboListBox Members | Syncfusion.Windows.Forms.Tools Namespace

Syncfusion.Windows.Forms.Tools.ComboListBox

We are using the most current release of
Syncfusion 1.6 I believe.

Tim

> Hi Tim,
>
> Which version of Essential Tools are you currently using? Also, we do not have a ComboListBox control so are you using the ComboBoxExt control along with the Windows Forms ListBox? Can you update us with details so that we can try to set up a sample and take a look at this issue?
>
> Regards
> Arun
>

[Administrator]

We are using 1.6.1.5

[Tim Jackson]

So are we.

> We are using 1.6.1.5

[Administrator]

Hi,

Please refer to the sample attached. Could you modify it to illustrate the above mentioned problem ? Also, please create an incident in this regard in DirectTrac and we will send you the download instructions for the latest release of Essential Suite. Thanks for your cooperation.

Regards,
Guru Patwal
Syncfusion, Inc.

[Tim Jackson]

Your project references a CombBoxBase which
i do not have. What is the namespace for
this object?

Syncfusion.Windows.Forms.Tools.ComboBoxBase
does not exist in my environment.

Tj

> Hi,
>
> Please refer to the sample attached. Could you modify it to illustrate the above mentioned problem ? Also, please create an incident in this regard in DirectTrac and we will send you the download instructions for the latest release of Essential Suite. Thanks for your cooperation.
>
> Regards,
> Guru Patwal
> Syncfusion, Inc.

[Administrator]

Hi Tim,

Please replace all instances of ComboBoxBase with ComboBoxExt and that should take care of this error. ComboBoxExt control was renamed as ComboBoxBase according to the Essential Suite 2.0 naming conventions. Please let me know if you need any othe information.

Regards,
Guru Patwal
Syncfusion, Inc.

[Paul Laudeman]

Hi Guru,

I've modified your sample project to demonstrate the problem we're experiencing. Please refer to our support incident for more information.

Thanks!
-Paul

> Hi Tim,
>
> Please replace all instances of ComboBoxBase with ComboBoxExt and that should take care of this error. ComboBoxExt control was renamed as ComboBoxBase according to the Essential Suite 2.0 naming conventions. Please let me know if you need any othe information.
>
> Regards,
> Guru Patwal
> Syncfusion, Inc.

[Administrator]

Hi Paul,

Thanks for the modified sample. I will update your incident on DirectTrac. We appreciate your cooperation.

Regards,
Guru Patwal
Syncfusion, Inc.