Questions on UI for WinForms Forum

1 answer

347 views

Good with everyone
I have a problem creating a user control with a radlabel. I would like both to be transparent and allow to see the bottom of the window, but I have failed. I tried changing the background and the opacity property.

Thanks in advance.

Victor Bocanegra

General Discussions

answered on 02 Dec 2009

2 answers

130 views

Theme Colors in SplitButton Dropdown

Hello,

I've recently upgraded to Q3 2009. The upgrade has seemingly broken my dropdown colors for my Split Buttons. I previously created a custom theme based on the Desert theme, however, the dropdown colors were not changed from the Desert default. These values were [in the theme editor]:

RootRadElement -> RadDropDownMenuElement->FillPrimitive

BackColor/2/3/4: 243, 243, 229

RootRadElement -> RadDropDownMenuElement->RadElement->FillPrimitive

BackColor/2/3/4: 222, 222, 204

When I open the theme editor now for my split buttons, these colors still appear as desired. However, when the Split Buttons are clicked at runtime, the dropdown menu items instead have two shades of white/gray as fill colors instead of the two shades of the sandy color specified above. Also, normally when I run into problems like this with Telerik controls, I typically hard code changes to the elements at runtime as a workaround. However, in this case, I am unable to reach these components of the element tree. When working with a RadSplitButton, the only available element is the DropDownButtonElement which does not have children leading to a DropDownMENUElement.

Any help would be appreciated.

Jeremy

Buttons, RadioButton, CheckBox, etc

answered on 01 Dec 2009

1 answer

108 views

Carousel elements selection

Hi!
Can anyone tell me how can i select elements from a carousel with left and right arrows?

Carousel

answered on 01 Dec 2009

3 answers

607 views

radGridView Column Header Text Wrap

Hi,

I have many column to display, several with long titles, and "No Scrolling" is strict instruction.
I have check all related docs, but don't find a way.

Is there any way so that I can Wrap Column Header ?

Thanks.

GridView

answered on 01 Dec 2009

1 answer

88 views

Selective expansion of rows involving hierarchical data

Hello,

I am testing out the RadGridView control and noticed when setting up a relationship for hierarchical data display in the control that once I add a row programmatically to the child template's data source that all rows on the main/parent template will expand out when clicking on the + icon for the row even though not all rows have any linked child rows. For my purposes, I would like to disallow the expanding of rows if there's nothing to show as in many cases there will only be a few (if any) rows with child rows linked up. Is this possible? Is there an event I should cancel? Or a way to disable/make invisible the + icon for rows that have no child rows?

Thanks,
Mark

GridView

answered on 01 Dec 2009

1 answer

113 views

Scroll enabled

How to enabled scroll in RadPanelBar when bar list elements are bigger then panel.

Panelbar (obsolete as of Q2 2010)

answered on 01 Dec 2009

2 answers

224 views

Casting Problem..

Hi,

I used Custom Field for scheduler control. And I watched Adding Custom Fields to RadScheduler for WinForms Appointments. And I read online help. I did it same things.

My problem,

It can't cast IEvent object to NewAppointmentObject on ApplySettingsToEvent.. NewAppointmentObject is inherited from Appointment Class.. Its code is following.

    
            using System;  
        
            using System.Collections.Generic;  
        
            using System.Text;  
        
            using Telerik.WinControls;  
        
            using Telerik.WinControls.UI;  
        
            namespace LearnRadScheduler  
        
            {  
        
                public class NewAppointmentObject : Appointment  
        
                {  
        
                    public NewAppointmentObject()  
        
                        : base()  
        
                    {  
        
                    }  
        
                    private string subjectEN = string.Empty;  
        
                    public string SubjectEN  
        
                    {  
        
                        get { return this.subjectEN; }  
        
                        set  
        
                        {  
        
                            if (this.subjectEN != value)  
        
                            {  
        
                                this.subjectEN = value;  
        
                                this.OnPropertyChanged("SubjectEN");  
        
                            }  
        
                        }  
        
                    }  
        
                    private string locationEN = string.Empty;  
        
                    public string LocationEN  
        
                    {  
        
                        get { return this.locationEN; }  
        
                        set  
        
                        {  
        
                            if (this.locationEN != value)  
        
                            {  
        
                                this.locationEN = value;  
        
                                this.OnPropertyChanged("LocationEN");  
        
                            }  
        
                        }  
        
                    }  
        
                    private string descriptionEN = string.Empty;  
        
                    public string DescriptionEN  
        
                    {  
        
                        get { return this.descriptionEN; }  
        
                        set  
        
                        {  
        
                            if (this.descriptionEN != value)  
        
                            {  
        
                                this.descriptionEN = value;  
        
                                this.OnPropertyChanged("DescriptionEN");  
        
                            }  
        
                        }  
        
                    }     
        
                }  
        
            }

I run the project, All appointments are coming to screen in Scheduler control. But I select an appointment, showing my custom edit dialog and getting all values. No problem. I want to add new appointment. I click empty line and openning CustomAppointmentEditDialog. I write some things. I click OK button. But I bought an exception. Is is following.

Exception Message :

    
            Property accessor 'SubjectEN' on object 'Telerik.WinControls.UI.Appointment' threw the following exception:'Object does not match target type.'

Stack Trace :

    
            "   at System.ComponentModel.ReflectPropertyDescriptor.GetValue(Object component)\r\n   at Telerik.WinControls.UI.Scheduler.BindingProviderBase`1.UpdateDataItemProperty(Object item, T schedulerItem, SchedulerMapping mapping)\r\n   at Telerik.WinControls.UI.Scheduler.BindingProviderBase`1.UpdateDataItemProperties(Object item, T schedulerItem)\r\n   at Telerik.WinControls.UI.Scheduler.BindingProviderBase`1.InsertCore(T itemToInsert)\r\n   at Telerik.WinControls.UI.SchedulerBindingDataSource.EventBindingProvider.InsertCore(IEvent itemToInsert)\r\n   at Telerik.WinControls.UI.Scheduler.BindingProviderBase`1.Insert(T itemToInsert)\r\n   at Telerik.WinControls.UI.RadScheduler.OnAddAppointments(IList list)\r\n   at Telerik.WinControls.UI.RadScheduler.appointments_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)\r\n   at Telerik.WinControls.Data.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)\r\n   at Telerik.WinControls.Data.ObservableCollection`1.NotifyListenersCollectionChanged(NotifyCollectionChangedEventArgs e)\r\n   at Telerik.WinControls.Data.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)\r\n   at Telerik.WinControls.Data.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)\r\n   at Telerik.WinControls.Data.ObservableCollection`1.InsertItem(Int32 index, T item, Action`1 approvedAction)\r\n   at Telerik.WinControls.Data.ObservableCollection`1.InsertItem(Int32 index, T item)\r\n   at Telerik.WinControls.UI.SchedulerAppointmentCollection.InsertItem(Int32 index, IEvent item)\r\n   at System.Collections.ObjectModel.Collection`1.Add(T item)\r\n   at Telerik.WinControls.UI.RadScheduler.AddNewAppointmentWithDialog(DateTimeInterval interval, Boolean recurringAppointment, SchedulerResourceCollection resources)\r\n   at Telerik.WinControls.UI.DayViewAppointmentsTable.cell_DoubleClick(Object sender, EventArgs e)\r\n   at Telerik.WinControls.RadItem.OnDoubleClick(EventArgs e)\r\n   at Telerik.WinControls.RadItem.DoDoubleClick(EventArgs e)\r\n   at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)\r\n   at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)\r\n   at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)\r\n   at Telerik.WinControls.UI.RadScheduler.OnMouseUp(MouseEventArgs e)\r\n   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)\r\n   at System.Windows.Forms.Control.WndProc(Message& m)\r\n   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)\r\n   at Telerik.WinControls.RadControl.WndProc(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)\r\n   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)\r\n   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.Run(ApplicationContext context)\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)\r\n   at KocSchool_Grades.TestProject.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81\r\n   at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)\r\n   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)\r\n   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()\r\n   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)\r\n   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)\r\n   at System.Threading.ThreadHelper.ThreadStart()"

    This code ,
        NewAppointmentObject newAppObj = ev as NewAppointmentObject;

    return null..

I think, it can not do casting.
    NewAppObj return NULL after casting.. !!

    
                    protected override void ApplySettingsToEvent(Telerik.WinControls.UI.IEvent ev)  
        
                    {  
        
                        NewAppointmentObject newAppObj = ev as NewAppointmentObject;  
        
                        if (newAppObj != null)  
        
                        {  
        
                            newAppObj.SubjectEN = this.txtSubjectEN.Text;  
        
                            newAppObj.LocationEN = this.txtLocationEN.Text;  
        
                            newAppObj.DescriptionEN = this.txtDescriptionEN.Text;  
        
                        }  
        
                        base.ApplySettingsToEvent(ev);  
        
                    }

I did it same things in help document. My WinForms controls version is 2009 Q3, but same code was running my previous version that is 2008 Q2.

from now, thanks for all helps..

Scheduler and Reminder

answered on 01 Dec 2009

1 answer

102 views

Starting time in Scheduler

HI,

In RadScheduler by setting RulerStartScale I can specify starting time of dayview. Type of RulerStartScale is integer so I have to pass integer as starting time. But It sets hour only, I want to set Hour and Minutes as starting time. For example by setting RulerStartScale=11 will set Starting time from 11. But What should I do if I want starting time for ruler time as 11.30..??

Scheduler and Reminder

answered on 01 Dec 2009

0 answers

149 views

Error in form before loading the designer

To prevent possible data loss before loading the designer the following errors must be resolved

at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg)
at System.Xml.XmlTextReaderImpl.Throw(String res)
at System.Xml.XmlTextReaderImpl.ParseEntityName()
at System.Xml.XmlTextReaderImpl.ParseAttributeValueSlow(Int32 curPos, Char quoteChar, NodeData attr)
at System.Xml.XmlTextReaderImpl.ParseAttributes()
at System.Xml.XmlTextReaderImpl.ParseElement()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.GeneratedAssemblyEntry.RealizeMoniker(String moniker)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.GeneratedAssemblyEntry.get_FileName()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.get_Assembly()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.GeneratedAssemblyEntry.get_Assembly()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, String description)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchGeneratedEntries(AssemblyName assemblyName, String typeName, Boolean ignoreTypeCase, Assembly& assembly)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchEntries(AssemblyName assemblyName, String typeName, Boolean ignoreCase, Assembly& assembly, ReferenceType refType)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, ReferenceType refType)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name, Boolean throwOnError)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetType(ITypeResolutionService trs, String name, Dictionary`2 names)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.FillStatementTable(IDesignerSerializationManager manager, IDictionary table, Dictionary`2 names, CodeStatementCollection statements, String className)
at System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, CodeTypeDeclaration declaration)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
at System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost host)

how can i solve this error
Any one can help me!!!
Regards,
vignesh

General Discussions

asked on 01 Dec 2009

3 answers

240 views

distinct values in GridViewComboBoxColumn

I added GridViewComboBoxColumn per the help files. http://www.telerik.com/help/winforms/grid_gridviewcomboboxcolumn.html

What I am trying to figure out is how to make the values in the combobox distinct. Is there a property or setting to do this or do I have to programmically remove all of the dups?

Thanks
Stephen

GridView

answered on 30 Nov 2009