Questions on UI for WinForms Forum

14 answers

236 views

Hi,

I have a problem with grouping data in RadGridView. I set IList as dataSource to RadGridView.
IList is a list of objects some class Product. Class Product has property Category which is a class with some fields too.

How can I set by what field of class Gategory group the data, when I grouping by Category column in Poduct ?

Any help would be appreciated!

Regards!

GridView

answered on 04 Jan 2011

8 answers

2.8K+ views

How can I change color of scroll bars vertical and horizontal (for nested panels also)?

Hi!

How can I change color of scroll bars vertical and horizontal (for nested panels also)?

I do this:

this.TableElement.VScrollBar.BackColor = Color.Red;

this.TableElement.HScrollBar.BackColor = Color.Red;

but nothing changes.

Regards

GridView

answered on 04 Jan 2011

1 answer

117 views

Obsolete?

I the toolstrip is obsolete now, what in the world are we supposed to use as an alternative? We have toolbars (toolstrips) throughout our application!

Toolstrip (obsolete as of Q3 2010)

answered on 03 Jan 2011

5 answers

578 views

Can't disable risize form at Radribbon form

Hi! I had add the new form to my project which the new form is RadRibbon Form
At the form i had add the Office2007BlackTheme also.

I had a question here:
When run the RadRibbon Form i will able to resize the Form by mouse.
How do i disable that function.

I'm Using the RadControls for WinForms Q2 2010 SP2

Thank!

Regards
Johnny

RibbonBar

answered on 03 Jan 2011

1 answer

122 views

DockingManager NullReferenceException

Hi,

On the launch of the splitter window if the user tries to resize the sub window by dragging/moving the splitter, A NullReferenceException is thrown. The following is the stack message.
------------------------------------------------------------------------------------------------------------------------------------

   System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.WinControls.Docking.DockSite.CalcSplitterMargin(Splitter& splitter)
   at Telerik.WinControls.Docking.DockSite.OnMouseDown(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at Telerik.WinControls.Docking.DockSite.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
------------------------------------------------------------------------------------------------------------------------------------

Note: sub windows are the DockPanels which are added to the DockingManager using SetDock.

Thanks for any help,
Srinivas.

Dock

answered on 03 Jan 2011

1 answer

185 views

Rotator Web Browser at Runtime

Is there a way to change the url at runtime for the web browser item? I would like the browser to rotate thru a group of .swf files in a given folder or list. Whenever I try to change the url property I get an error stating it is Read Only. I am programming in Visual Basic 2008.

Rotator

answered on 03 Jan 2011

8 answers

1.5K+ views

No data to display

Hi,
I am using Radgridview and define columns using the smart tag in design window. Every thing works fine. If there is no data available to display in the grid, it should give the message "No data to display". But this does not happen. How should i acheive this?. I get the message only if i dont define columns and use AutoGenerateColumns=True.

With Regards,
S. Surendar.

GridView

answered on 03 Jan 2011

7 answers

179 views

Sort a String

Hello,

I have a TextColumn in my grid that contains data like this:

10
11
100
100A

I would like to sort this string like numbers (e.g. 10, 11,....), but I can't set simple the DataType of this Column because of the Characters.

Is there any way to sort like this?

Best regards,
Patrick

GridView

answered on 03 Jan 2011

3 answers

128 views

Diffrent datasource for every rows in GridView.

Hello,
I have problem with using two datasource in one column in my grid. I have two columns:
- column to choose type of number
- column GridViewComboBoxColumn with numbers binded to datasource
User in every rows can choose type and number from next column, I have two data source with numbers A, and number B. Can I define datasource for any rows? Someone implemented this mechanism ?
I use Q2 2010.

Thanks for help
Marcin

GridView

answered on 03 Jan 2011

3 answers

209 views

radbutton enable problem

Hi there....
I'm using Winform 2010 3 10 1109 dev....
I'm attached picture when the button is enable, disable, then I'm enable it again....
there are something wrong, the button not looks like the first when i'm enable it...
but the function is the same...
What's wrong with the button...??
first enable
disable
enable Again

Buttons, RadioButton, CheckBox, etc

answered on 03 Jan 2011