Questions on UI for WPF Forum

1 answer

143 views

Our code used to work before upgrading to March 09.

    
              public SearchResultsPage(cRecordIndexObjectList[] recordIndexObjectList) 
        
                    { 
        
                        InitializeComponent(); 
        
                        dt = new DataTable(); 
        
                        General.ConvertRecordIndexObjectToTable(recordIndexObjectList, dt,null); 
        
                        gvSearchResults.ItemsSource = dt; 
        
                        // Hide the IsBold column 
        
                        GridViewColumn columnBold = gvSearchResults.Columns["IsBold"]; 
        
                        if (columnBold != null) 
        
                            columnBold.IsVisible = false; 
        
                        // Hide the RecordIndexObjectList object 
        
                        GridViewColumn column = gvSearchResults.Columns["RecordIndexObjectList"]; 
        
                        if (column != null) 
        
                            column.IsVisible = false; 
        
                        gvSearchResults.Visibility = Visibility.Visible; 
        
                        lblTotal.Content = "Total Records: " + gvSearchResults.Records.Count; 
        
                    }

None of the columns are there and the count that I used to get on my last line is 0.

Can you please advise?

GridView

answered on 18 Mar 2009

2 answers

120 views

Q1 2009 GridView breaks existing custom grid editor controls

Hello,

After upgrading to the latest version (2009.1.312.35) of the WPF Grid View my custom grid editor controls have stopped working, though they worked fine with the previous version (2008.3.1217.35). I used ideas from a forum post to create a grid editor control that allows users to type in any value they want in the combo box so they're not restricted to just the values in the list.

Now whenever I double click to edit a cell using my custom editor control, the value gets cleared and the editor does not show up. I have to click a third time to get the editor to appear and once it does it is blank because the value got cleared. When I debug I can see that the DataContext is always null whereas with the previous version the DataContext was always populated with the object the row was bound to.

I can reproduce this behaviour in the ForeignKey sample project from the forum post that I linked to earlier by making the following changes.

Changed this:

    
                        comboBoxEditor.GotFocus += ((sender, e) => 
        
                        { 
        
                            PersonType personType = (PersonType)((Field)this.DataContext).Value; 
        
                            comboBoxEditor.SelectedItem = (from PersonType item in comboBoxEditor.Items 
        
                                                           where item.PersonTypeID == personType.PersonTypeID 
        
                                                           select item).FirstOrDefault(); 
        
                        });

to this:

    
                        comboBoxEditor.GotFocus += ((sender, e) => 
        
                        { 
        
                            var person = DataContext as Person; 
        
                            if (person != null && person.PersonType != null) 
        
                            { 
        
                                comboBoxEditor.SelectedItem = (from PersonType item in comboBoxEditor.Items 
        
                                                               where item.PersonTypeID == person.PersonType.PersonTypeID 
        
                                                               select item).FirstOrDefault(); 
        
                            } 
        
                        });

Notice how when you double click on a cell in the PersonType column, the value gets cleared. Once you click a third time the editor will appear.

(Please note that to get this sample project to work with the latest version of the grid I also had to change the editor settings properties to be regular properties because EditorSettings seems to no longer be a dependency object.)

I hope someone can help me with this problem.

Thanks,

Joel

GridView

answered on 18 Mar 2009

1 answer

96 views

Update Issue with RadControls for WPF (Version: 2009.1 312)

Hi,

I had downloaded the latest DLLs in the RadControls for WPF (Version: 2009.1 312). The existing project has started giving some errors as follows:

1. The property 'IsHierarchyRoot' does not exist in XML namespace 'http://schemas.telerik.com/2008/xaml/presentation'

2. The type 'telerik:GridViewBackground' was not found.

3. The type 'telerik:NavigationPresenter' was not found.

Please Advice. Is there any new DLL that need to be referred?

Regards
Ashish Garg

GridView

answered on 18 Mar 2009

1 answer

50 views

GridView MouseLeftButton down no longer works

Our MouseLeftButtonDown events no longer fire. So we changed to MouseLeftButtonUp and that works. Why doesn't MouseLeftButtonDown work anymore?

GridView

answered on 17 Mar 2009

3 answers

247 views

WPF used as a "web application"?

Hello!
I use the ASP.NET telerik controls and love them...

However in a new development project at my company, it has been decided to use WPF as both a desktop solution (great! Meant for that!) but also as a "web product". It will be accessible via a public site but also sold for intranet use. It is a HUGE RMS system for the fire industry. Are there any case studies using WPF application run in this way? Over the internet via browser? What are the limitations? I have not been able to find ANY information really on using WPF as a web application.

I know ASP.NET is used for web apps, but in this case, management wants to use WPF. Mainly for the single code base (Desktop/web). However, it does not appear to have been meant for web deployment based on the literature... THoughts?

Thanks
Harold

General Discussions

answered on 17 Mar 2009

1 answer

125 views

Can't load Toolbox

I installed RadControls for WPF Q1 2009. I can't get any tools to post to the Toolbox. I select RadCarouselPanel on the WPF tab, click OK, but nothing gets added. I've added Telerik.Windows.Controls as a reference.
Added 3/15. VS2008SP1 now restarts anytime I try to add a tool. This seems to be a VS problem. I've tried "devenv /reset and /safemode w/o success. I see where this was a problem before SP1. Any help appreciated; it makes it hard to use RadControls!
Added 3/17. Toolbox now working see - Can't add items to toolbox in Visual Studio 2008

General Discussions

answered on 17 Mar 2009

2 answers

144 views

StyleManager.Theme Bug

Hi Telerik,

In Q1 2009 when I drop down the list for the StyleManager.Theme in the IDE (Blend AND VS2008) a strange gradiant (purple to blue with a black line under) list appears for the list of themes.

I can get you a screenshot if you need it.

~Mike

General Discussions

answered on 16 Mar 2009

1 answer

286 views

wpf demo: error on building/running solution

I download and installed the latest 2009 Q1 release and the included demo examples contains a lot of errors:

XmlRepository.cs(119,11): error CS1502: The best overloaded method match for 'System.Collections.ObjectModel.ObservableCollection<Telerik.Windows.Examples.Employee>.ObservableCollection(System.Collections.Generic.List<Telerik.Windows.Examples.Employee>)' has some invalid arguments
XmlRepository.cs(121,5): error CS1503: Argument '1': cannot convert from 'System.Collections.Generic.IEnumerable<Telerik.Windows.Examples.Employee>' to 'System.Collections.Generic.List<Telerik.Windows.Examples.Employee>'
XmlRepository.cs(220,14): error CS1502: The best overloaded method match for 'System.Collections.ObjectModel.ObservableCollection<Telerik.Windows.Examples.Order>.ObservableCollection(System.Collections.Generic.List<Telerik.Windows.Examples.Order>)' has some invalid arguments
XmlRepository.cs(220,46): error CS1503: Argument '1': cannot convert from 'System.Collections.Generic.IEnumerable<Telerik.Windows.Examples.Order>' to 'System.Collections.Generic.List<Telerik.Windows.Examples.Order>'
Gauge\Gallery\CarDashboard\Example.xaml.cs(96,4): error CS1501: No overload for method 'Begin' takes '0' arguments
Gauge\Gallery\CarDashboard\Example.xaml.cs(104,4): error CS1501: No overload for method 'Stop' takes '0' arguments
Gauge\Gallery\CarDashboard\Example.xaml.cs(116,6): error CS1501: No overload for method 'Begin' takes '0' arguments
Gauge\Gallery\CarDashboard\Example.xaml.cs(133,6): error CS1501: No overload for method 'Begin' takes '0' arguments
Gauge\Gallery\WeatherStation\Example.xaml.cs(125,4): error CS1501: No overload for method 'Begin' takes '0' arguments
GridView\RowPreview\Example.xaml.cs(89,15): error CS0117: 'System.Windows.Media.Animation.Storyboard' does not contain a definition for 'SetTarget'
GridView\RowPreview\Example.xaml.cs(94,4): error CS1501: No overload for method 'Begin' takes '0' arguments
GridView\DataSources\Example.xaml.cs(180,11): error CS1502: The best overloaded method match for 'System.Collections.ObjectModel.ObservableCollection<Telerik.Windows.Examples.Customer>.ObservableCollection(System.Collections.Generic.List<Telerik.Windows.Examples.Customer>)' has some invalid arguments
GridView\DataSources\Example.xaml.cs(180,46): error CS1503: Argument '1': cannot convert from 'System.Collections.Generic.IEnumerable<Telerik.Windows.Examples.Customer>' to 'System.Collections.Generic.List<Telerik.Windows.Examples.Customer>'

my laptop is setup with:
VS2008, .Net 3.5 SP1, XP2Pro

Any solution? Tnx.

General Discussions

answered on 16 Mar 2009

3 answers

196 views

Pie Chart Series Naming

Is there currently a way to label the series on a pie chart from a data field ?

Chart

answered on 16 Mar 2009

6 answers

171 views

Problem in Blend

Hi,

I use VS and Blend to build a wpf application. When using Blend all of a sudden I get the following error message
The name <telerik control tab/grid> does not exist in the namespace "http://schemas.telerik.com/2008/xaml/presentation"'

I have tried Clean, re-referencing, re-build but to no avail. This error is only in design time in Blend.

any advise?

P

General Discussions

answered on 13 Mar 2009