Questions on UI for WPF Forum

2 answers

140 views

Vertical Scrolling with custom GridViewRow.Template

Hi,

I have implemented a custom GridViewRow Template but the vertical scrolling of the grid is gone... I'm not sure if I turned it off though since there doesn't seem to be any property like "VerticalScrollBarVisibility" to set?

Here is a sample of how I am defining my grid:

    
                        <telerik:RadGridView x:Name="SettingsGrid" ItemsSource="{Binding ElementName=UC, Path=CurrentSettingList}" ScrollMode="RealTime"  
        
                                                 AutoGenerateColumns="False" ShowGroupPanel="False" IsFilteringAllowed="False" ColumnsWidthMode="Fill" ShowColumnHeaders="False" 
        
                                                 CanUserFreezeColumns="False" CanUserReorderColumns="False" CanUserSortColumns="False" VerticalGridlinesVisibility="Hidden" 
        
                                                 Margin="4,2,4,2" Loaded="SettingsGrid_Loaded">

Greg

GridView

answered on 08 Jul 2009

4 answers

411 views

RadGridView for WPF: Changing ContextMenu per Cell Clicked

Hi,
I want to be able to display a different context menu depending on which column cell the user right-clicks on as described on this article for the RadGridView for WinForms:
http://www.telerik.com/support/kb/winforms/gridview/radgridview-custom-context-menu-dependent-on-element-clicked.aspx

I need to be able to do the same in WPF. Is it possible?
Thanks,
Laura

GridView

answered on 08 Jul 2009

3 answers

142 views

[Solved] No items until user action

Hello,
I tried to recreating the 'First Look' sample with different objects. The code below is taken from the sample. I have only changed one line there.

    
            public Example() 
        
                    { 
        
                        InitializeComponent(); 
        
                        this.sampleRadCarousel.ItemsSource = DAL.GetCustomers(); 
        
                        this.sampleRadCarousel.Loaded += new RoutedEventHandler(sampleRadCarousel_Loaded); 
        
                    } 
        
                    void sampleRadCarousel_Loaded(object sender, RoutedEventArgs e) 
        
                    { 
        
                        Path path = CreateLinePath(); 
        
                        Telerik.Windows.Controls.RadCarouselPanel panel = this.sampleRadCarousel.FindCarouselPanel(); 
        
                        panel.ItemsPerPage = 7; 
        
                        panel.Path = path; 
        
                    }

The issue I am having is that the carousel does not display items until I move the mouse wheel or move the items in a different way.

The moduleCarousel.FindCarouselPanel().BringDataItemIntoView(customer); does not help. Is there a way to refresh or something ?

Carousel

answered on 08 Jul 2009

1 answer

145 views

Tooltip stays on screen

I have a line chart bound to a collection, the X-Axis has DateTime values. The collection gets a new item added every few seconds, and the chart correctly updates. But if I have a tooltip displaying when the chart updates, that tooltip becomes fixed to the screen, permanently visible, even if I move the application window away, until I close the application.

I'm using the 2009 Q2 controls.

Steve

Chart

answered on 08 Jul 2009

1 answer

366 views

Differences between Free WPF and Paid?

I recently downloaded the free version of the WPF controls. Is there any significant difference between the free version and the version that you can purchase from Telerik?

General Discussions

answered on 08 Jul 2009

4 answers

116 views

[Solved] Non-rectangular tabs?

is it possible to have non-rectangular tabs, which also overlap, like the ones in VS2008?

Steve

TabControl

answered on 07 Jul 2009

7 answers

238 views

Full documentation

The online documentation for the gridview doesn't seem comprehensive.
Is there any documentation that cover all the details?

Thanks

GridView

answered on 07 Jul 2009

1 answer

340 views

Tab Icon

I can not seem to figure out how to add an icon to the RadTabItem.Header. To tell you the truth I couldn't figure out hwo to add one to the Standard windows TabControl either ;). I can easily do it in XAML, but I need to do it in the code behind for some dynamically created tabs.

Any pointer?

Thanks!

TabControl

answered on 07 Jul 2009

2 answers

206 views

Set Date to null

I'd like to modify the template of the DatePicker but I'm not sure exactly the best way to go about it. I know that currently if the user clicks on the already selected date then it sets the SelectedDate to null, but what I'd like is a button on the outside of the DatePicker that can be clicked to set the date to null.

So the control would look like

<Textbox with date><Button to bring up calendar><Button to set value to null>

The button would only be clickable when there is a date of course.

I'm considering just putting together a UserControl that has this functionality, but I was wondering if there's an easy way to do it using a DataTemplate.

DatePicker

answered on 06 Jul 2009

2 answers

150 views

LabelProperties do not listen on property change when DataContext is set after InitializeComponent

If i have a trigger on IsEnabled in my LabelProperties style an bind that to a DependecyProperty in my ViewModel the Trigger will not 'fire' when i set the DataContext after InitilizeComponent only if i set it before. The problem with this is that IsEnable will not work if i set the DataContext in xaml on a UserControl containing the gauge. I think that this is a faulty behavior because Minor/MajorTickStyle works if i set the DataContext after InitilizeComponent.

well this thread is useless without code so...

my usercontrol

    
            <UserControl x:Class="WpfTest_Telerik.UserControl1" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" 
        
                Width="300" Height="300">  
        
                <UserControl.Resources> 
        
                    <Style x:Key="MajorTickStyle" TargetType="{x:Type telerik:TickProperties}">  
        
                        <Setter Property="Background" Value="White" /> 
        
                        <Style.Triggers> 
        
                            <Trigger Property="IsEnabled" Value="False">  
        
                                <Setter Property="Background" Value="Black" /> 
        
                            </Trigger> 
        
                        </Style.Triggers> 
        
                    </Style> 
        
                    <Style x:Key="LabelProperties" TargetType="{x:Type telerik:LabelProperties}">  
        
                        <Setter Property="Foreground" Value="White" /> 
        
                        <Style.Triggers> 
        
                            <Trigger Property="IsEnabled" Value="False">  
        
                                <Setter Property="Foreground" Value="Black" /> 
        
                            </Trigger> 
        
                        </Style.Triggers> 
        
                    </Style> 
        
                </UserControl.Resources> 
        
                <Grid> 
        
                    <telerik:RadGauge> 
        
                        <telerik:RadialGauge> 
        
                            <telerik:RadialScale> 
        
                                <telerik:RadialScale.MajorTick> 
        
                                    <telerik:TickProperties IsEnabled="{Binding Path=IsActive}" Style="{StaticResource MajorTickStyle}"/>  
        
                                </telerik:RadialScale.MajorTick> 
        
                                <telerik:RadialScale.Label > 
        
                                    <telerik:LabelProperties IsEnabled="{Binding Path=IsActive}"  Style="{StaticResource LabelProperties}" /> 
        
                                </telerik:RadialScale.Label> 
        
                            </telerik:RadialScale> 
        
                        </telerik:RadialGauge> 
        
                    </telerik:RadGauge> 
        
                </Grid> 
        
            </UserControl>

code behind

    
            using System.Windows.Controls;  
        
            namespace WpfTest_Telerik  
        
            {  
        
                /// <summary>  
        
                /// Interaction logic for UserControl1.xaml  
        
                /// </summary>  
        
                public partial class UserControl1 : UserControl  
        
                {  
        
                    public UserControl1()  
        
                    {  
        
                        // will work  
        
                        //DataContext = new UserControl1ViewModel();  
        
                        InitializeComponent();  
        
                        // will not work  
        
                        DataContext = new UserControl1ViewModel();  
        
                    }  
        
                }  
        
            }

my viewmodel

    
            using System;  
        
            using System.Windows;  
        
            using System.Timers;  
        
            using System.Windows.Threading;  
        
            namespace WpfTest_Telerik  
        
            {  
        
                public class UserControl1ViewModel : DependencyObject  
        
                {  
        
                    private readonly Dispatcher _currentDispatcher;  
        
                    public UserControl1ViewModel()  
        
                    {  
        
                        _currentDispatcher = Dispatcher.CurrentDispatcher;  
        
                        var timer = new Timer(2000);  
        
                        timer.Elapsed += TimerElapsed;  
        
                        timer.Start();  
        
                    }  
        
                    void TimerElapsed(object sender, ElapsedEventArgs e)  
        
                    {  
        
                        Action x = () => IsActive = !IsActive;  
        
                        _currentDispatcher.BeginInvoke(x);  
        
                    }  
        
                    public bool IsActive  
        
                    {  
        
                        get { return (bool)GetValue(IsActiveProperty); }  
        
                        set { SetValue(IsActiveProperty, value); }  
        
                    }  
        
                    // Using a DependencyProperty as the backing store for IsActive.  This enables animation, styling, binding, etc...  
        
                    public static readonly DependencyProperty IsActiveProperty =  
        
                            DependencyProperty.Register("IsActive", typeof(bool), typeof(UserControl1ViewModel), new UIPropertyMetadata(false));  
        
                }  
        
            }

Gauges

answered on 06 Jul 2009