Questions on UI for WPF Forum

14 answers

202 views

Horizontal scrolling when filter returns no result

Hi,

I'm using a RadGridView with a lot of columns, which requires horizontal scrolling to see all the columns. But when a filter is applied to a column outside the view, and that filter returns no results (empty list), the view scrolls to the start and the horizontal scrollbar disappears. If that happens, I can't clear the filter because I can't scroll to the column the filter is set on.

I tried:

    
            <telerik:RadGridView ScrollViewer.HorizontalScrollBarVisibility="Visible">  
        
            <!-- columns and stuff --> 
        
            </telerik:RadGridView>

But the scrollbar still disappears.

Is there some solution for this problem?

Thanks in advance.

GridView

answered on 02 Dec 2009

2 answers

442 views

Pie chart with percentage

Hi,

I'm binding data to a pie chart. My YValues are double representing percentage (e.g. 0.258963 for 25,90 %).
I would like that the Telerik Pie Chart display label as percentage (25.90%) and not as the value of the double (0.258963).
What's the solution ? Should i convert my YValues on my own or Telerik have a "format" properties.

Thanks in advance.

G. Moelens

Chart

answered on 02 Dec 2009

3 answers

125 views

DocumentHost Tab Context Menu

How can I set a context menu when I right click on the tab of a document in the DocumentHost?

Docking

answered on 01 Dec 2009

2 answers

83 views

MultiSelection problem with CheckBox column and Grouping

Hello,

when grouping is active there seems to be a problem with multi-selection by clicking on the CheckBoxes of a GridViewSelectColumn (using the current internal build). CheckBox and row change state, but SelectionChanged is not raised.

Multi-selection by mouse clicking is raising SelectionChanged as expected.

Thanks for looking into this,

Alex

GridView

answered on 01 Dec 2009

1 answer

199 views

CellStyle for All gridView

Hello,

How can I set the CellStyle for All Cell of RadGridView ?

GridView

answered on 01 Dec 2009

4 answers

425 views

Getting checked items using MVVM

Hi
I'm using a RadTreeView with checkboxes. I'm binding the ItemsSource property of the radtreeview to a collection of my businessobject. I need to retrieve the checked items (businesss objects) on my view model class. I tried to bind the CheckedItems property to an ObservableCollection on my viewmodel. but it gives me a compile error because the set accessor is not accessible.
Is there another way of doing this other than hooking it to the checked event from the code behind?

TreeView

answered on 30 Nov 2009

4 answers

152 views

Subclassing and binding

Hello,

I have recently upgraded to the latest Q3 release and have run into a problem that used to work with the Q2 binaries. I have an object that I use to “collect” properties from multiple objects for displaying on a grid. For instance, I have a person object with name properties, and an address object(collection) with its fields. In a grid, I’d like to display the person’s name and their (primary) address.

I had a solution that worked well in the Q2 binaries, but since the upgrade my solution will no longer work as the item source seems to look at the base class, instead of the object being passed in.

Here’s a boiled down example to illustrate my issue.

Here's the class difinitions:

    
                    public class Visualitems : List<Visualitem> {  
        
                        object Parent { get; set; }  
        
                    }  
        
                    public abstract class Visualitem {  
        
                        public object Parent { get; set; }  
        
                    }  
        
                    public class GridDataItem : Visualitem {  
        
                        public GridDataItem( string first, string middle, string last ) {  
        
                            this.FirstName = first;  
        
                            this.LastName = last;  
        
                            this.MiddleName = middle;  
        
                        }  
        
                        public string FirstName { get; set; }  
        
                        public string MiddleName { get; set; }  
        
                        public string LastName { get; set; }  
        
                    }

Here's how I attempt to setup and populate the grid:

    
                        Visualitems items = new Visualitems();  
        
                        items.Add( new GridDataItem( "Jon", "A", "Smith" ) );  
        
                        items.Add( new GridDataItem( "Tom", "P", "Jones" ) );  
        
                        items.Add( new GridDataItem( "Ken", "W", "Adams" ) );  
        
                        items.Add( new GridDataItem( "Kelly", "C", "Truman" ) );  
        
                        Telerik.Windows.Controls.GridViewDataColumn gvc = new Telerik.Windows.Controls.GridViewDataColumn();  
        
                        gvc.UniqueName = "FirstName";  
        
                        gvc.Header = "First Name";  
        
                        gvc.DataContext = "FirstName";  
        
                        gvc.IsVisible = true;  
        
                        gvc.Width = new Telerik.Windows.Controls.GridViewLength( 1, Telerik.Windows.Controls.GridViewLengthUnitType.Star );  
        
                        grid.Columns.Add( gvc );  
        
                        Binding binding = new Binding();  
        
                        binding.Source = items;  
        
                        binding.Mode = BindingMode.OneWay;  
        
                        binding.BindsDirectlyToSource = true;  
        
                        grid.DataContext = binding.Source;  
        
                        grid.SetBinding( Telerik.Windows.Controls.RadGridView.ItemsSourceProperty, binding );

This will generate the error: "Property with name FirstName cannot be found on type Visualitem"

Any guidance on this matter would be appreciated...

Thank you in advance for your time,

Craig

GridView

answered on 30 Nov 2009

1 answer

72 views

Can't instantiate RagGridView

Hi, i am trying to use RadGridView

i have add the reference dll and add namespace definition,

and use this Code in my project

                    <Controls1:RadGridView ItemsSource="{Binding Orders}" AutoGenerateColumns="True"></Controls1:RadGridVie>         

I have no compiler error, but when i lunch the application i get the follow exception:

Can not assign value '/Telerik.Windows.Controls.GridView;component/themes/office/black/GridViewToggleButton.xaml' to property 'Source' of object 'System.Windows.ResourceDictionary'. Object reference not set to an instance of an object. Error at object 'System.Windows.ResourceDictionary' at markup file 'Telerik.Windows.Controls.GridView;;;Component/Themes/GenericOfficeBlack.xaml'.

How Can i solve my problem ?

GridView

answered on 30 Nov 2009

1 answer

90 views

X-Axis is not starting at chart begining

Hi,
I am creating a chart in code behind.

I have a small problem when using SplineAreaSeriesDefinition -> see attachment.
I cant get the series x axis to start at zero ?

Does anyone have a tip ?

Best regards.
krissi.

Chart

answered on 30 Nov 2009

1 answer

54 views

Unexpected behavior of RadGridView.MinHeight

All,

I have found a bug in the RadGridView control which causes the group area to be larger then expected. To reproduce this bug, just set the MinHeight property of the grid view control to some large number. This even proves true in designer mode.

- Rashad Rivera

GridView

answered on 30 Nov 2009