Questions on UI for WinForms Forum

4 answers

166 views

[Solved] Rad Ribbon Bar causes VB to crash

I'm using the RadRibbonBar with VB 2008.net express edition. I've followed the extra steps to get the ribbon bar to appear in the toolbox and everything seems to be OK. However, recently I find that when I create a new project the ribbon bar works fine until I save the project. Then the application won't start - nothing has changed since the last test other than saving the project. I've tried this out several times, changing different things, and have shown fairly conclusively that it is the saving of the project that causes the problem.

My test case was to create a new project, add the ribbon bar to the form, run the program. All fine. Save the project, run the program. Failed. All default names were left alone, no changes were made to the ribbon bar or the form.

This is the error that I get:

InvalidOperationException was unhandled

An error occurred creating the form. See Exception.InnerException for details. The error is: That assembly does not allow partially trusted callers.

What can I do to fix this? Any suggestions greatfully received.

Thanks,
Martin.

RibbonBar

answered on 21 May 2008

1 answer

143 views

Schedule control for WinForms

I can't find any control that works like the ASP.NET Schedule control on the Win32 platform. Am I blind og doesn't it exist?

Best regards
Dan

New Product Suggestions

answered on 21 May 2008

1 answer

146 views

Standard control properties

A quick question about standard control properties;

I have just started using the Winforms control set and started throwing some controls onto the forms expecting to have little problem when swapping out standard controls (buttons, check boxes) etc. I was surprised to find that the checkbox doesn't have a checked property?? Obviously I should be using IsChecked, but why the deviation from having the standard properties. I assumed that I should be able to simply swap out the basic UI controls without issue. Am I missing something very obvious here??

Thanks in advance.

General Discussions

answered on 20 May 2008

1 answer

186 views

SortChanging

The SortChanging-Event does create an wrong handler:

It should be (original documentation):
Private Sub radGridView1_SortChanging(ByVal sender As Object, ByVal e As SortChangingEventArgs)

It is (my project):
Private Sub rad_grid_SortChanging(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCollectionChangingEventArgs) Handles rad_grid.SortChanging

ergo, there no methods like e.NewSortExpression, etc.

I use the Version 6.0.2!

regards
Michael

GridView

answered on 20 May 2008

1 answer

254 views

Bottom border missing

I have a RadGridView which I clear the rows from, then add 5 or so records. The bottom border is missing though...I can see the vertical column lines, but nothing at the bottom...is this a bug?

Screenshot

GridView

answered on 19 May 2008

2 answers

114 views

[Solved] low minimum value: datetime picker design time error

I have used the Q3 2007 RADdatetimepicker on a windows form in my project. When I upgraded to Q1 2008, the form shows the following error message at design time:

"Value is lower than the minimum available value"

How can I resolve this error?

Calendar, DateTimePicker, TimePicker and Clock

answered on 19 May 2008

1 answer

152 views

Border formatting problem on scroll

I have a winforms application correctly displaying data from a dataset.

When a user double clicks on a row it opens a document associated with that row - I want the row to then be highlighted (ie create a border around it) so that the user knows they have viewed that item.

the code i'm using for this is:

dg2.Rows(dg2.SelectedRows(0).ViewInfo.CurrentIndex).VisualElement.BorderColor = Color.Blue
        dg2.Rows(dg2.SelectedRows(0).ViewInfo.CurrentIndex).VisualElement.BorderColor = Color.Blue
        dg2.Rows(dg2.SelectedRows(0).ViewInfo.CurrentIndex).VisualElement.BorderBoxStyle = Telerik.WinControls.BorderBoxStyle.OuterInnerBorders
        dg2.Rows(dg2.SelectedRows(0).ViewInfo.CurrentIndex).VisualElement.DrawBorder = True

this works fine - until i use the scroll bars - the highlights stay in the same place visually - but this now highlights the wrong items.

Help please......

GridView

answered on 19 May 2008

4 answers

168 views

[Solved] Default filter in ver Q1 2008

With the Q3 2007 this lines works

        For Each column As Telerik.WinControls.UI.GridViewDataColumn In RadGridView.MasterGridViewTemplate.Columns
            column.Filter.Function = Telerik.WinControls.UI.GridKnownFunction.Contains
        Next

but with the latest version i obtain the error
Error    1    'Function' no es un miembro de 'Telerik.WinControls.Data.FilterExpression'.
(Function is not a member of Telerik.WinControls.Data.FilterExpression)

Sorry for my english, i'm spanish.

GridView

answered on 17 May 2008

3 answers

299 views

RowDeleting e.cancel cause crash

Hi,
if I try to cancel a delete action in the RadGridView, I got a execption error.

The problem appear in the Option dialog of the radRibbon. In this dialog I got a radGridview, if something are deleted, I check if I can delete it. If not a set the e.cancel = true. If e.cancel=true the system give me this error:

    
            System.ArgumentOutOfRangeException was unhandled  
        
              Message="L'index était hors limites. Il ne doit pas être négatif et doit être inférieur à la taille de la collection. Nom du paramètre : index" 
        
              ParamName="index" 
        
              Source="mscorlib" 
        
              StackTrace:  
        
                   à System.Collections.ArrayList.get_Item(Int32 index)    à Telerik.WinControls.UI.GridViewInfo.DeleteRow(GridViewDataRowInfo[] rows)    à Telerik.WinControls.UI.GridTableBodyElement.ProcessCmdKey(Keys keyData)    à Telerik.WinControls.UI.RadGridView.ProcessCmdKey(Message& msg, Keys keyData)    à System.Windows.Forms.Control.PreProcessMessage(Message& msg)    à System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)    à System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)    à System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FPreTranslateMessage(MSG& msg)    à System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)    à System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)    à System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)    à System.Windows.Forms.Form.ShowDialog(IWin32Window owner)    à System.Windows.Forms.Form.ShowDialog()    à Progest.ProgestVB.frmMain.RadRibbonBar1_OptionsButton_Click(Object sender, EventArgs e) dans C:\DotNet_WS\Progest\Dev\Progest\Forms\frmMain.vb:ligne 191    à System.EventHandler.Invoke(Object sender, EventArgs e)    à Telerik.WinControls.RadItem.OnClick(EventArgs e)    à Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)    à Telerik.WinControls.RadItem.DoClick(EventArgs e)    à Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)    à Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)    à Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)    à Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)    à Telerik.WinControls.RadElement.DoMouseDown(MouseEventArgs e)    à Telerik.WinControls.RadControl.OnMouseDown(MouseEventArgs e)    à System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)    à System.Windows.Forms.Control.WndProc(Message& m)    à System.Windows.Forms.ScrollableControl.WndProc(Message& m)    à Telerik.WinControls.RadControl.WndProc(Message& m)    à Telerik.WinControls.UI.RadPopupControl.WndProc(Message& m)    à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)    à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)    à System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)    à System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)    à System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)    à System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)    à System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)    à System.Windows.Forms.Application.Run(Form mainForm)    à Progest.ProgestVB.Program.Main(String[] args) dans C:\DotNet_WS\Progest\Dev\Progest\Main.vb:ligne 17    à System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)    à System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)    à Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()    à System.Threading.ThreadHelper.ThreadStart_Context(Object state)    à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)    à System.Threading.ThreadHelper.ThreadStart()  
        
              InnerException:

I try to use e.cancel=true in the validating event and all work good. I have trouble only in the deleting event.

The exception are on the line: opt.ShowDialog()

    
                    Private Sub RadRibbonBar1_OptionsButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadRibbonBar1.OptionsButton.Click  
        
                        Dim Opt As New dlgOptions  
        
                        Opt.ShowDialog()  
        
                        Opt.Dispose()  
        
                    End Sub

here the deleting function:

    
                    Private Sub RadGridSegments_RowDeleting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.RowDeletingEventArgs) Handles RadGridSegments.RowDeleting  
        
                        If oSegment.PeutEffacer(e.Row.Cells("ID").Value) = False Then 
        
                            MessageBox.Show(RM.GetString("dlgConfig_EffSegment"), "", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)  
        
                            e.Cancel = True 
        
                        End If 
        
                    End Sub

any suggestion?

GridView

answered on 17 May 2008

3 answers

177 views

Desert?

Ok, so I have the trial for the Q1 2008 Winforms and I would like to test out the desert theme...actually...any theme would be nice.

I create a new radform, set the theme to Desert and in the designer it looks great. I run it...everything goes back to plain.

If I choose other themes most of them don't even change from the default. The few that do still don't show anything at runtime.

What am I missing?

David

Themes and Visual Style Builder

answered on 17 May 2008