Questions on UI for WPF Forum

1 answer

87 views

Hi All,

I'm new to WPF but trying to work through this Book Control. Could somebody please give me a quick code example on how to get access to the objects I play on the page, for example if I put a button on a page. In vb.net code how do I get access to that object if I wanted to change its label. I take it I need to first get the RadBookItem which should be the page I am on and then somehow use an object collection to get access to the child objects on that page but I cannot see anything like that in the intellisense for RadBookItem ?

Kind Regards

Ken

Book

answered on 16 Jan 2013

5 answers

558 views

[Solved] How to set filters to column programmatically?

I've found this article: http://www.telerik.com/help/wpf/gridview-filtering-programmatic.html
But column doesn't have "ColumnFilterDescriptor" property. I use 2011.3.1220.40 version of controls.

My problem:
I want to set filters to auto-generated column. I can set filters to grid using "grid.FilterDescriptors" property. It filters data in grid but when I open filter in column header it resets. How to set filters to column?

P.S. My code for adding filter to grid:

grid.FilterDescriptors[i] = new ColumnFilterDescriptor(newColumn)

{

FilterDescriptors = oldColumnDescriptor.FilterDescriptors,

LogicalOperator = oldColumnDescriptor.LogicalOperator,

Column = newColumn

};

GridView

answered on 16 Jan 2013

1 answer

85 views

What is the behavioural difference between the "Auto" and "Fixed" Containers in the Diagram Toolbox example.

I presumed one did "Auto" shape layout and the other did "Fixed" shape layout but I cannot see any behavioural difference when playing around with these controls in the Telerik demo.

Diagram

answered on 16 Jan 2013

1 answer

264 views

Removing header

Hi there,

I'm trying to host a RadTimeLine inside a RadTimeBar so that I can view timeline events but with the selection ability of the TimeBar.

a) If I want the mouse scrolling to work, I need to have intervals set on my RadTimeBar, but I don't want duplicate intervals to be displayed. I can't seem to make the header height for the RadTimeLine drop to zero - is it possible to completely hide either of the headers?

b) I'd like the cursor to just be a single line rather than a selected range - representing an instant in time rather than a period. Is there a simple way to do this?

Many thanks

Nick

TimeLine

answered on 16 Jan 2013

1 answer

64 views

Docking with single RadPaneGroup within DocumetnHost

Hi,

Is it possible to limit the number of RandPaneGroup within a RadDocking control?

At this moment, we have one RadSplitContainer with RadPane in it on the left for navigation purpose.

And another DocumentHost with one RadPane in it occupying the rest of area.

When there are multiple RadnPane in the RandPaneGroup of the DocumentHost, they can be draaged out to float, and when they dock back, we would like to make the float window docked back to the original PanGroup they are from.

The reason is we are using Prism region with radDocking. When they radpane are docked back to diffrent RadPanGroup. exceptions will be thrown.

Is it possible to do it? Does it need to disalbe some indicator of the Compass?

Regards,

Yu

Docking

answered on 16 Jan 2013

1 answer

175 views

Databinding RadMap Center and ZoomLevel

I have data bound the RadMap Center and ZoomLevel to properties in my ViewModel. These work fine up until I move the map or zoom in/out using the mouse. It appears as if the databinding is no longer working. I'm firing the OnPropertyChanged events but the map fails to respond. The mouse events are being handled directly by the control.

Any Idea if this is a bug? Or should I update these properties in another way?

Map

answered on 16 Jan 2013

3 answers

234 views

Using a Report in Wpf?

Hi,

is it possbile to view a Report (Example the Dashboard.trdx) in a wpf Application?

Thanks
Best Regards
Rene

General Discussions

answered on 16 Jan 2013

7 answers

179 views

[Solved] Unit testing VirtualQueryableCollectionView

Is it possible to write unit test against the VirtualQueryableCollectionView? I tried to write a unit test to verify the VirtualItemCount, but it seems that the collection is tightly coupled to the UI components and therefore requires tests to run on a STA thread. Is this correct?

GridView

answered on 16 Jan 2013

1 answer

207 views

[Solved] ArgumentNullException thrown from DocumentPosition.Finalize()

This exception occurred while I was using the RadRichTextBox, and it crashed my application. I have not been able to reproduce it since. I am on RadControls for WPF version 2012.3.1017.40.

ShellApplication.HandleException : InteractionDesktopClient: App Domain Unhandled exception
Top Exception
Type=System.ArgumentNullException
Source=mscorlib
Message=Value cannot be null.
StackTrace:
at System.Threading.Monitor.ReliableEnter(Object obj, Boolean& lockTaken)
at System.Threading.Monitor.Enter(Object obj, Boolean& lockTaken)
at Telerik.Windows.Documents.DocumentPosition.Dispose() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Documents\Core\DocumentPosition\DocumentPosition.cs:line 2626
at Telerik.Windows.Documents.DocumentPosition.Finalize() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Documents\Core\DocumentPosition\DocumentPosition.cs:line 2650

Is this a known issue?

Thanks,
Evan

RichTextBox

answered on 16 Jan 2013

5 answers

670 views

AggregateFunctions and GridViewDataColumn Footer Issue

Hi,

I am trying to use the AggregateFunctions and display them inside the Footer of the Grid using ItemsControl.ItemTemplate similar to the sample you provide. Though this works fine I have run into a problem, I have a tab control with 2 tabs inside each tab I have a Grid both using AggregateFunctions displayed in the footer using the ItemsControl.ItemTemplate. Initially the footers are displayed fine, if I however move between tabs/grids the footers are displayed empty.

If I do not use the ItemsControl.ItemTemplate approach the footers work fine, if I go and add or update the contents of the grid then the footer is displayed correctly again.

This code does not work:

    
            <telerik:GridViewDataColumn Header="Available Amount" UniqueName="Amount" DataMemberBinding="{Binding Amount}" > 
        
                <telerik:GridViewDataColumn.AggregateFunctions> 
        
                    <telerik:SumFunction Caption="Sum: " ResultFormatString="{}{0:0}" SourceField="Amount" /> 
        
                    <telerik:AverageFunction Caption="Average: " ResultFormatString="{}{0:0}" SourceField="Amount" /> 
        
                </telerik:GridViewDataColumn.AggregateFunctions> 
        
                <telerik:GridViewDataColumn.Footer> 
        
                    <StackPanel Orientation="Vertical" Margin="5,0">  
        
                        <telerik:AggregateResultsList ItemsSource="{Binding}" VerticalAlignment="Center" Grid.Column="4">  
        
                            <ItemsControl.ItemTemplate> 
        
                                <DataTemplate> 
        
                                    <StackPanel Orientation="Horizontal" VerticalAlignment="Center">  
        
                                        <TextBlock VerticalAlignment="Center" Text="{Binding Caption}" Width="100"/>  
        
                                        <TextBlock VerticalAlignment="Center" Foreground="Blue" Text="{Binding FormattedValue}" /> 
        
                                    </StackPanel> 
        
                                </DataTemplate> 
        
                            </ItemsControl.ItemTemplate> 
        
                            <ItemsControl.ItemsPanel> 
        
                                <ItemsPanelTemplate> 
        
                                    <StackPanel Orientation="Vertical" /> 
        
                                </ItemsPanelTemplate> 
        
                            </ItemsControl.ItemsPanel> 
        
                        </telerik:AggregateResultsList> 
        
                    </StackPanel> 
        
                </telerik:GridViewDataColumn.Footer> 
        
            </telerik:GridViewDataColumn>

This code does display but I would really like to control how it is displayed:

    
            <telerik:GridViewDataColumn Header="Available Amount" UniqueName="Amount" DataMemberBinding="{Binding Amount}" > 
        
                <telerik:GridViewDataColumn.AggregateFunctions> 
        
                    <telerik:SumFunction Caption="Sum: " ResultFormatString="{}{0:0}" SourceField="Amount" /> 
        
                    <telerik:AverageFunction Caption="Average: " ResultFormatString="{}{0:0}" SourceField="Amount" /> 
        
                </telerik:GridViewDataColumn.AggregateFunctions> 
        
            </telerik:GridViewDataColumn>

I am using Q2 2009 (Version: 2009.2.701.35)

Hopefully it is something I am missing.

Regards,
Glen

GridView

answered on 16 Jan 2013