Questions on UI for WPF Forum

1 answer

218 views

The bottom of the text strings in my pie chart legend is being cut off.... Not sure why since I am just using the basic styles.

XAML

            <telerik:RadChart x:Name="ProgressChart"
                              Margin="4,8,4,4"
                              VerticalAlignment="Stretch"
                              HorizontalAlignment="Stretch">
                <telerik:RadChart.Background>
                    <SolidColorBrush Color="Transparent"/>
                </telerik:RadChart.Background>
            </telerik:RadChart>

Code Behind

            ProgressChart.Visibility = Visibility.Visible;
            ProgressChart.DefaultView.ChartArea.DataSeries.Clear();

            var areaSeries = new DataSeries {Definition = new PieSeriesDefinition()};

            areaSeries.LegendLabel = "test";
            areaSeries.Definition.ShowItemLabels = true;

            areaSeries.Add(new DataPoint(_dataList.Completed, _dataList.Completed));
            areaSeries.Add(new DataPoint(_dataList.Incomplete, _dataList.Incomplete));

            areaSeries[0].LegendLabel = "Completed";
            areaSeries[1].LegendLabel = "Incomplete";
            ProgressChart.DefaultView.ChartArea.DataSeries.Add(areaSeries);

Chart

answered on 30 Apr 2009

1 answer

109 views

Sample Application: Edit, Delete, Insert

Is there any good sample application or posting i can use to see how i should start an edit, delete and insert command on a grid using custom buttons?

GridView

answered on 29 Apr 2009

5 answers

128 views

Legend Location

How can I put the legend under the chart? Does it always have to locate at the right edge of the chart control?

Chart

answered on 29 Apr 2009

1 answer

35 views

Displaying bound data that needs a flip

I have a collection, something like this

Data Source (custom object)

This is a List<MyCustomObject> that contains all the properties.

Properties (strings):

ID
DESCRIPTION
VALUE

Upon binding to the grid, i need to flip this. I need each unique ID to become a new column, the value to be the data of that column, and the descriptoins to represent rows.

Example of final outcome:

                          ID           ID          {Infinite across}
DESCRIPTION VALUE     VALUE
DESCRIPTION VALUE     VALUE
DESCRIPTION VALUE     VALUE
                                           {infinite down}

How do you recommend i accomplish this?

GridView

answered on 29 Apr 2009

1 answer

93 views

New Roadmap?

How long before we have a new Roadmap? I'm currently evaluating different WPF components and need to know the future direction before I make a final decision.

General Discussions

answered on 28 Apr 2009

5 answers

386 views

GridViewDataColumn Background and Themes

I borrowed the code from the C# Examples and modified it to show the issue as well as another problem I've addressed in a separate posting. Notice that changing the resource dictionary that is merged using the buttons at the top does not effect the display of the gridview as expected. The other elements on the page do change, and if the alternate dictionary is loaded at the start it changes, but the buttons do not effect the grid. What gives?

    
            <Window x:Class="ThemeIssue.Window1" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" 
        
                xmlns:GridView="clr-namespace:Telerik.Windows.Controls.GridView;assembly=Telerik.Windows.Controls.GridView" 
        
                Title="Dynamic Resource Troubles">  
        
            <Grid> 
        
                    <Grid.RowDefinitions> 
        
                        <RowDefinition Height="50" /> 
        
                        <RowDefinition /> 
        
                    </Grid.RowDefinitions> 
        
                    <StackPanel Grid.Row="0" Margin="5" 
        
                                Orientation="Horizontal"   
        
                                Background="{DynamicResource ColorOne}" 
        
                                HorizontalAlignment="Center">  
        
                        <TextBlock Name="TextBlock1"   
        
                                   Margin="5" 
        
                                   VerticalAlignment="Center" 
        
                                   Background="{DynamicResource ColorTwo}" 
        
                                   Foreground="{DynamicResource ColorOne}" /> 
        
                        <Button Content="Light" Click="butLight_Click" Margin="5"/>  
        
                        <Button Content="Dark" Click="butDark_Click" Margin="5"/>  
        
                    </StackPanel> 
        
                    <telerik:RadGridView Name="RadGridView1" DataLoadMode="Asynchronous" Grid.Row="1" ColumnsWidthMode="Auto" 
        
                               IsReadOnly="True" AutoGenerateColumns="False">  
        
                        <telerik:RadGridView.Columns> 
        
                            <telerik:GridViewDataColumn   
        
                                HeaderText="ID"   
        
                                Background="{DynamicResource ColorTwo}" 
        
                                DataMemberPath="ID" /> 
        
                            <telerik:GridViewDataColumn   
        
                                Width="*"   
        
                                HeaderText="Name"   
        
                                Background="{DynamicResource ColorOne}" 
        
                                DataMemberPath="Name" /> 
        
                            <telerik:GridViewDataColumn   
        
                                DataFormatString="{}{0:c2}"   
        
                                HeaderText="UnitPrice"   
        
                                Background="{DynamicResource ColorThree}" 
        
                                DataMemberPath="UnitPrice" /> 
        
                            <telerik:GridViewDataColumn   
        
                                DataFormatString="{}{0:d}"   
        
                                HeaderText="Date"   
        
                                Background="{DynamicResource ColorFour}" 
        
                                DataMemberPath="Date" /> 
        
                            <telerik:GridViewDataColumn HeaderText="Discontinued" DataMemberPath="Discontinued">  
        
                                <telerik:GridViewDataColumn.CellStyle> 
        
                                    <Style TargetType="GridView:GridViewCell">  
        
                                        <Setter Property="Template">  
        
                                            <Setter.Value> 
        
                                                <ControlTemplate TargetType="GridView:GridViewCell">  
        
                                                    <Border BorderThickness="{TemplateBinding BorderThickness}"   
        
                                                        BorderBrush="{TemplateBinding BorderBrush}"   
        
                                                        Background="{TemplateBinding Background}">  
        
                                                        <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" 
        
                                                              IsChecked="{Binding Discontinued}" IsEnabled="False" /> 
        
                                                    </Border> 
        
                                                </ControlTemplate> 
        
                                            </Setter.Value> 
        
                                        </Setter> 
        
                                    </Style> 
        
                                </telerik:GridViewDataColumn.CellStyle> 
        
                            </telerik:GridViewDataColumn> 
        
                        </telerik:RadGridView.Columns> 
        
                    </telerik:RadGridView> 
        
                </Grid> 
        
            </Window>

    
            using System;  
        
            using System.Collections.Generic;  
        
            using System.ComponentModel;  
        
            using System.Linq;  
        
            using System.Windows;  
        
            using System.Windows.Media;  
        
            namespace ThemeIssue  
        
            {  
        
                /// <summary> 
        
                /// Interaction logic for Window1.xaml  
        
                /// </summary> 
        
                public partial class Window1  
        
                {  
        
                    private DateTime start;  
        
                    private ResourceDictionary lightColors = new ResourceDictionary();  
        
                    private ResourceDictionary darkColors = new ResourceDictionary();  
        
                    public Window1()  
        
                    {  
        
                        CreateResourceDictionaries();  
        
                        Resources.MergedDictionaries.Add(lightColors);  
        
                        InitializeComponent();  
        
                        start = DateTime.Now;  
        
                        Loaded += Example_Loaded;  
        
                        RadGridView1.DataLoaded += RadGridView1_DataLoaded;  
        
                        RadGridView1.SortDescriptions.PropertyChanged += ResetTime;  
        
                        RadGridView1.GroupDescriptions.PropertyChanged += ResetTime;  
        
                    }  
        
                    private void CreateResourceDictionaries()  
        
                    {  
        
                        var light = new SolidColorBrush(Colors.Yellow);  
        
                        var dark = new SolidColorBrush(Colors.Green);  
        
                        var lightAlpha = new SolidColorBrush(ModifyAlpha(light, 50));  
        
                        var darkAlpha = new SolidColorBrush(ModifyAlpha(dark, 50));  
        
                        lightColors.Add("ColorOne", dark);  
        
                        lightColors.Add("ColorTwo", light);  
        
                        lightColors.Add("ColorThree", darkAlpha);  
        
                        lightColors.Add("ColorFour", lightAlpha);  
        
                        darkColors.Add("ColorOne", light);  
        
                        darkColors.Add("ColorTwo", dark);  
        
                        darkColors.Add("ColorThree", lightAlpha);  
        
                        darkColors.Add("ColorFour", darkAlpha);  
        
                    }  
        
                    private Color ModifyAlpha(SolidColorBrush light, byte alpha)  
        
                    {  
        
                        Color lightlightModified = light.Color;  
        
                        lightModified.A = alpha;  
        
                        return lightModified;  
        
                    }  
        
                    private void ResetTime(object sender, PropertyChangedEventArgs e)  
        
                    {  
        
                        start = DateTime.Now;  
        
                    }  
        
                    private void Example_Loaded(object sender, RoutedEventArgs e)  
        
                    {  
        
                        RadGridView1.ItemsSource = new MyBusinessObjects().GetData(100);  
        
                    }  
        
                    private void RadGridView1_DataLoaded(object sender, EventArgs e)  
        
                    {  
        
                        RadGridView1.FilterDescription.PropertyChanged += FilterDescription_PropertyChanged;  
        
                        TextBlock1.Text = String.Format("Total time to load data: {0} ms",  
        
                                                        Math.Round((DateTime.Now - start).TotalMilliseconds));  
        
                    }  
        
                    private void FilterDescription_PropertyChanged(object sender, PropertyChangedEventArgs e)  
        
                    {  
        
                        RadGridView1.FilterDescription.PropertyChanged -= FilterDescription_PropertyChanged;  
        
                        ResetTime(sender, e);  
        
                    }  
        
                    private void butLight_Click(object sender, RoutedEventArgs e)  
        
                    {  
        
                        Resources.MergedDictionaries.Clear();  
        
                        Resources.MergedDictionaries.Add(lightColors);  
        
                    }  
        
                    private void butDark_Click(object sender, RoutedEventArgs e)  
        
                    {  
        
                        Resources.MergedDictionaries.Clear();  
        
                        Resources.MergedDictionaries.Add(darkColors);  
        
                    }  
        
                }  
        
                public class MyBusinessObjects  
        
                {  
        
                    private string[] names = new string[]  
        
                                                 {  
        
                                                     "Côte de Blaye", "Boston Crab Meat",  
        
                                                     "Singaporean Hokkien Fried Mee", "Gula Malacca", "Rogede sild",  
        
                                                     "Spegesild", "Zaanse koeken", "Chocolade", "Maxilaku", "Valkoinen suklaa"  
        
                                                 };  
        
                    private double[] prizes = new double[]  
        
                                                  {  
        
                                                      23.2500, 9.0000, 45.6000, 32.0000,  
        
                                                      14.0000, 19.0000, 263.5000, 18.4000, 3.0000, 14.0000  
        
                                                  };  
        
                    private DateTime[] dates = new DateTime[]  
        
                                                   {  
        
                                                       new DateTime(2007, 5, 10), new DateTime(2008, 9, 13),  
        
                                                       new DateTime(2008, 2, 22), new DateTime(2009, 1, 2),  
        
                                                       new DateTime(2007, 4, 13),  
        
                                                       new DateTime(2008, 5, 12), new DateTime(2008, 1, 19),  
        
                                                       new DateTime(2008, 8, 26),  
        
                                                       new DateTime(2008, 7, 31), new DateTime(2007, 7, 16)  
        
                                                   };  
        
                    private bool[] bools = new bool[] {true, false, true, false, true, false, true, false, true, false};  
        
                    public IEnumerable<MyBusinessObject> GetData(int maxItems)  
        
                    {  
        
                        var rnd = new Random();  
        
                        return from i in Enumerable.Range(0, maxItems)  
        
                               select new MyBusinessObject(i, names[rnd.Next(9)], prizes[rnd.Next(9)],  
        
                                                           dates[rnd.Next(9)], bools[rnd.Next(9)]);  
        
                    }  
        
                    public class MyBusinessObject  
        
                    {  
        
                        private int id;  
        
                        private string name;  
        
                        private double unitPrice;  
        
                        private DateTime date;  
        
                        private bool discontinued;  
        
                        public MyBusinessObject(int ID, string Name, double UnitPrice, DateTime Date,  
        
                                                bool Discontinued)  
        
                        {  
        
                            this.ID = ID;  
        
                            this.Name = Name;  
        
                            this.UnitPrice = UnitPrice;  
        
                            this.Date = Date;  
        
                            this.Discontinued = Discontinued;  
        
                        }  
        
                        public int ID  
        
                        {  
        
                            get { return id; }  
        
                            set { id = value; }  
        
                        }  
        
                        public string Name  
        
                        {  
        
                            get { return name; }  
        
                            set { name = value; }  
        
                        }  
        
                        public double UnitPrice  
        
                        {  
        
                            get { return unitPrice; }  
        
                            set { unitPrice = value; }  
        
                        }  
        
                        public DateTime Date  
        
                        {  
        
                            get { return date; }  
        
                            set { date = value; }  
        
                        }  
        
                        public bool Discontinued  
        
                        {  
        
                            get { return discontinued; }  
        
                            set { discontinued = value; }  
        
                        }  
        
                    }  
        
                }  
        
            }

GridView

answered on 28 Apr 2009

1 answer

87 views

Some Columns Don't Allow Grouping

I have a RadGridView that is bound to a list of Medication Objects.
A medication contains the following fields:
Drug - object                  Bound to Drug.Name
Dosage - string              Bound to Dosage
StartTime - DateTime     Bound to StartTime
EndTime - DateTime      Bound to EndTIme
Comments - String         Bound to Comments

When the control binds to my list, all of the fields are allowed to be grouped except for the Drug.Name. Is there a way to group this column?

Here is my XAML

<telerik:RadGridView Margin="-2,2,2,-2" AutoGenerateColumns="False" Name="radGridView1" ItemsSource="{Binding PatientMedications}">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn HeaderText="Name" DataMemberBinding="{Binding Path=Drug_.Name}" UniqueName="{x:Null}"/>

<telerik:GridViewDataColumn HeaderText="Dosage" DataMemberBinding="{Binding Path=Dosage}" UniqueName="{x:Null}" />

<telerik:GridViewDataColumn HeaderText="Started" DataMemberBinding="{Binding Path=StartTime}" UniqueName="{x:Null}" />

<telerik:GridViewDataColumn HeaderText="Ended" DataMemberBinding="{Binding Path=EndTime}" UniqueName="{x:Null}" />

<telerik:GridViewDataColumn HeaderText="Comments" DataMemberBinding="{Binding Path=Comments}" UniqueName="{x:Null}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

Thanks,

Billy Jacobs

GridView

answered on 28 Apr 2009

1 answer

114 views

Turning off the navigation control?

Is there a way to hide the navigation control that automatically displays?

Carousel

answered on 27 Apr 2009

4 answers

177 views

Expression Blend NullReferenceException

We have a WPF project which uses several telerik grids. We bind to the grids by using setting the DataContext property in the Window_Loaded, and the ItemsSource on each grid to "{Binding}". Using the Q308 release, the grids worked in Blend and Visual Studio (though had a whole host of other issues which I won't get into). Now that Q109 is out, I have upgrade all of our references to the new DLLs, but not changed any code. The project will build just fine, and the application will work (other than an issue that I will submit in another post).

However, with the new DLLS, the Visual Studio designer will crash as soon as I open the XAML (with no error), and Expression Blend refuses to open the XAML - it displays a NullReferenceException, which appears to being thrown in the Telerik.Windows.Controls.GridView.GridViewITemsControl.DisconnectFromDataEventsFunction(). I would paste the entire contents of the exception, but the developers of Blend apparently saw fit to not include the ability to copy the text of errors that occur in the application.

Any ideas, or do you need more information?

GridView

answered on 27 Apr 2009

1 answer

163 views

Aggregate functions do not work for ICustomTypeDescriptor

Hello,
I have a collection of a class implementing ICustomTypeDescriptor bound to WPF GridView. Basic functionalities such as viewing, sorting, grouping and filtering works fine. But when I try to add an AggregateFunction to the groups I receive a null reference exception. As far as I can see, the Properties collection of the RecordManager for the grid does not contain the property descriptions from the ICustomTypeDescriptor, Is there a solution or workaround for this situation?

Additionally, I would expect TypeDescriptionProvider attribute on a class would perform similar as implementing ICustomTypeDescriptor interface for the class. The Microsfot ListView control, for example, can handle this situation.

Thanks,

Mehmet Ali

GridView

answered on 27 Apr 2009