Questions on UI for WinForms Forum

1 answer

165 views

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

243 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

1.6K+ views

[Solved] 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

242 views

[Solved] 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

228 views

[Solved] 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

245 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

2 answers

118 views

[Solved] GridViewRowInfo.IsExpanded Error!!

GridViewRelation selfRelaction = new GridViewRelation(this.radGridView1.MasterTemplate, this.radGridView1.MasterTemplate);

selfRelaction.ParentColumnNames.Add("column1");

selfRelaction.ChildColumnNames.Add("column2");

this.radGridView1.Relations.Add(selfRelaction);

this.radGridView1.Columns["column1"].IsVisible = false;

this.radGridView1.Columns["column2"].IsVisible = false;

this.radGridView1.Rows.Add(1, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(2, 1, "1", "1", "1", "1");

this.radGridView1.Rows.Add(3, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(4, 3, "1", "1", "1", "1");

this.radGridView1.Rows.Add(5, null, "1", "1", "1", "1"

); 



//error : radGridView1.Rows.Count is "0"!

this.radGridView1.Rows[0].IsExpanded = true;

this.radGridView1.Rows[2].IsExpanded = true

;



radGridView1.Rows.Count is "0"!

Help me! Both Q2 and Q3!

GridView

answered on 31 Dec 2010

1 answer

178 views

AutoHide tab height

Hi,

How do I set the height of the tab that is shown when a toolwindow is autohidden?

if I use

radDock.AutoHideWindow(toolWindow);

in the forms ctor the height of the tab is smaller than when doing it in the forms Load eventhandler or when the users manually autohides a toolwindow.

Thanks,
Brian

Dock

answered on 30 Dec 2010

2 answers

213 views

submenu width

Hi,
I have a problem with submenus width in a radapplicationmenu inside a radribbonbar.
My submenus are larger then the main menu.

How ca I set my submenus as large as my main menu ?

As attachement a screenshot of my problem

Main Menu
Sub Menu

RibbonBar

answered on 30 Dec 2010

3 answers

286 views

[Solved] How can I disable hot tracking from column header elements?

Hi

How can I disable hot tracking from column header elements?

Regards

GridView

answered on 29 Dec 2010