Questions on UI for WinForms Forum

3 answers

243 views

I have an application with multiple tabs. I'd like it possible for user to "undock" tabs from the tabstrip and convert them into windows simply by dragging the tab outside of the tabstrip. And similar to re-dock a window as a tab if you drag a window back onto the tabstrip.

This is implemented in Google Chrome browser and I find the idea really appealing. And a nice way for the user to make separate windows on demand.

Is this possible to do with the WinForms Rad Controls? A small proof-of-concept would be great.

Tabstrip (obsolete as of Q2 2010)

answered on 26 Aug 2010

1 answer

166 views

ContextSwitchDeadlock during scheduler DataSource setting

Hi,

We have scheduler with resources. When try to set scheduler DataSource property, VS shows the message that ContextSwitchDeadlock was detected. DataSource contains 1 resource with more than 200 appointments. I guess the problem is in a large number of appointments we try to show. Is there any limits regard this. This is a complete text of a message:
ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x20cae8 to COM context 0x20cc58 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.

Thanks.

Scheduler and Reminder

answered on 26 Aug 2010

6 answers

235 views

Radcombobox to raddropdown issue

Hello,

Is there a way to get multiline text in the dropdownlist just like the radcombobox in the previous version? We are using the radcombobox in our project and we are testing the latest version on our project. I could not see how to do multiline text in the raddropdownlist. Please suggest me how to implement multiline text in raddropdownlist.

Thanks,
Ajay

DropDownList

answered on 26 Aug 2010

6 answers

685 views

SpinEditor Maximium Value Property

I have a Spin Editor and want to limit the range from 0 to -16.

If I set Minimium to - 16 and Max to 0, the upper limit goes to 100

If I set Minimium to -16 and Max to 1, the upper limit is 1.

Seems to be a problem.

SpinEditor

answered on 26 Aug 2010

2 answers

382 views

Auto horizontal scroll and item tooltip in RadListControl

HI,

I have some problem when using RadListControl.

First, not showed horizontal scroll bar automatically when item text drawn over horizontal area.
My item text use html redering.

Second, can not find property of tooltip in RadListDataItem.
RadListBoxItem has TooltipText in RadListBox.
You recommend RadListControl instead RadListBox.
But I need item tooltip text really.
How to implement item tooltip in RadListControl?

Jaehong.

ListControl

answered on 26 Aug 2010

2 answers

151 views

Scheduler with Linq

Hi,
Scheduler control is a very nice one, but I wasn't able to make work proper.
What I want: a win form with a radScheduler control, a custom EditAppointmentDialog ( example with email was enough), load data from data base, and save new appointments into database, but I want to save when click on OK button in EditAppointmentDialog .
My problem is how to save (via Linq) into database.Where is the save process done? How can save the appointment when the user click OK button in EditAppointmentDialog ? Can I override this click handler?

I found sample for wpf , ajax, silverlight, but I need for win forms,( smt like Custom Fields with Dataset but with Linq and saving in EditAppDlg).

Thanks !

Scheduler and Reminder

answered on 25 Aug 2010

1 answer

154 views

Unable to theme RadComboBoxItem

Recently I upgraded from Q3 2009 to 2010 Q1 SP1 (409) and got all the control themes working except for RadComboBoxItem(s). The only thing I have been able to modify is the "ScrollThickness". I'm also trying to change the font size and the mouse over background. So far I have tried to create a custom theme from stratch using the new VSB. Nothing under the RadComboBox > RadListBoxElement > RadListBoxItem is changing the appearance what so ever. I've tried everything under the Elements section and the Element States. I added the 3 theme files is made to my theme builder in VS (RadComboBox, Repository, RadSizablePopupControl). The only thing I have had luck so far with is adding the "RadSizablePopupControl" to the StylesheetRelations in the existing theme file. That was able to get me the larger ScrollThickness, but nothing else.

Any help would be appreciated.

Thanks,
Aaron

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 25 Aug 2010

12 answers

1.7K+ views

Gridview Value Change

Hi I am using Q2 2009 radGridview with checkbox column. I need to do count the number of rows has been checked after eacg checkbox is checked. But the value changed event in the radgridview is not working properly. It's not returing the true value after the checkbox is checked in current row. If i check two checkboxes first time the selected checkbox doesn't return true.When i select the second checkbox then it shows one row is checked that was previously checked .Pls tell me an appropriate event for the checkbox checked event in grid.Thanks for the help.

GridView

answered on 25 Aug 2010

1 answer

131 views

focus

Hello,

I need to set focus to the same Radtextbox if it is empty while pressing ENTER key

Will be very helpful if i get the solution early.

Thanx
Jayanthi

TextBox

answered on 25 Aug 2010

7 answers

328 views

[Solved] How do I add a custom control to a Ribbonbar chunk?

I think I saw an article on this somewhere, but I can't find it. I want to add a Usercontrol or even just a nonstandard Telerik control (like radDateTimePicker) to an existing RadRibbonBar.

RibbonBar

answered on 25 Aug 2010