I have searched for a solution to this...so if I overlooked I apologize. Please advise as to where to find solution.
I have 2 RadListBox elements each wrapped in asp:UpdatePanel with UpdateMode="Conditional". When I call .Update on the update panel containing the drop destination control, it seems the drag and drop (even move with buttons) functionality is no longer available.
ASPX:
VB.NET:
rlb2.ClearSelection()
rlb2.Items.Clear()
up2.Update()
I downloaded the latest release and doesn't change this behavior.
Thanks...Kelly
I have opened a support ticket for this issue. Once resolved I will post the answer for anyone else having this issue.
10/11/2011....
So it seems the issue is created when an async postback occurs and only one of the two controls is updated (.Update on the update panel). The immediate solution is to update both controls (.Update on both update panels). I have asked for this to be addressed in a future release as I strongly believe this is a bug. Hope someone finds this helpful.
10/12/2011....
Seems the "answer" is to update both controls. ie...Seperate update panels, call .Update on both.
You can view the ticket at http://www.telerik.com/account/support-tickets/view-ticket.aspx?threadid=471747
I have 2 RadListBox elements each wrapped in asp:UpdatePanel with UpdateMode="Conditional". When I call .Update on the update panel containing the drop destination control, it seems the drag and drop (even move with buttons) functionality is no longer available.
ASPX:
<
div
style
=
"float:left; width:285px;"
>
<
asp:UpdatePanel
ID
=
"up1"
runat
=
"server"
UpdateMode
=
"Conditional"
>
<
ContentTemplate
>
<
telerik:RadListBox
ID
=
"rlb1"
runat
=
"server"
AllowTransfer
=
"true"
EnableDragAndDrop
=
"true"
TransferMode
=
"Copy"
TransferToID
=
"rlb2"
SelectionMode
=
"Multiple"
ButtonSettings-VerticalAlign
=
"Middle"
ButtonSettings-ShowTransferAll
=
"false"
AllowTransferOnDoubleClick
=
"true"
Height
=
"300px"
Width
=
"100%"
></
telerik:RadListBox
>
</
ContentTemplate
>
</
asp:UpdatePanel
>
</
div
>
<
div
style
=
"float:left; width:285px; padding:0px 0px 0px 10px;"
>
<
asp:UpdatePanel
ID
=
"up2"
runat
=
"server"
UpdateMode
=
"Conditional"
>
<
ContentTemplate
>
<
telerik:RadListBox
ID
=
"rlb2"
runat
=
"server"
EnableDragAndDrop
=
"true"
AllowReorder
=
"true"
AllowDelete
=
"true"
AllowTransferDuplicates
=
"false"
ButtonSettings-VerticalAlign
=
"Middle"
Height
=
"300px"
Width
=
"100%"
></
telerik:RadListBox
>
</
ContentTemplate
>
</
asp:UpdatePanel
>
</
div
>
VB.NET:
rlb2.ClearSelection()
rlb2.Items.Clear()
up2.Update()
I downloaded the latest release and doesn't change this behavior.
Thanks...Kelly
I have opened a support ticket for this issue. Once resolved I will post the answer for anyone else having this issue.
10/11/2011....
So it seems the issue is created when an async postback occurs and only one of the two controls is updated (.Update on the update panel). The immediate solution is to update both controls (.Update on both update panels). I have asked for this to be addressed in a future release as I strongly believe this is a bug. Hope someone finds this helpful.
10/12/2011....
Seems the "answer" is to update both controls. ie...Seperate update panels, call .Update on both.
You can view the ticket at http://www.telerik.com/account/support-tickets/view-ticket.aspx?threadid=471747