RadGridView doesn't display at all

[Tarun]

Sorry for the naive question...

I am a first time user of the telerik WPF controls, I am following the tutorial here to add a RadGridView to my application...

My wpf application is build using MVVM, I am adding the RadGridView control to one of the views, see implementation below...

<UserControl x:Class="SprintAnalyzer.Module.Presentation.Views.MiddleView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
            xmlns:prism="clr-namespace:Microsoft.Practices.Prism.Interactivity.InteractionRequest;assembly=Microsoft.Practices.Prism.Interactivity"
            xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
             xmlns:interactions="clr-namespace:SprintAnalyzer.Module.Presentation.Interactions"
             xmlns:Views="clr-namespace:SprintAnalyzer.Module.Presentation.Views" mc:Ignorable="d"
             d:DesignHeight="300" d:DesignWidth="300">

    <Grid x:Name="LayoutRoot" Background="Lavender">
        <telerik:RadGridView x:Name="radGridView" AutoGenerateColumns="True"
                             ItemsSource="{Binding Path=AnalysisResults}" >
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Result}" Header="Result"/>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Category}" Header="Category"/>
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</UserControl>

Note - I have added a reference to xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" my project already has a reference to the Telerik.Windows.Code, Telerik.Windows.Controls.GridView and Telerik.Windows.Controls.Input. 

When I run the application, the grid is not displayed at all. 

The viewmodel implementation,

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
using Microsoft.Practices.Prism.Commands;
using Microsoft.Practices.Prism.Events;
using SprintAnalyzer.Common;
using SprintAnalyzer.Common.Service;
using SprintAnalyzer.Module.Presentation.Models;
using SprintAnalyzer.Module.Presentation.Requests;
using SprintAnalyzer.RulesEngine;
using SprintAnalyzer.Common.Events;

namespace SprintAnalyzer.Module.Presentation.ViewModels
{
    public class MiddleViewModel : ViewModelBase
    {
        private readonly IEventAggregator _eventAggregator;
        private ICommand _button;
        public string Output { get; private set; }

        public ICommand OnClick
        {
            get { return _button; }
            set
            {
                _button = value;
                RaisePropertyChangedEvent("OnClick");
            }
        }

        public MiddleViewModel(IApplicationContextService contextService, IEventAggregator eventAggregator)
        {
            this._contextService = contextService;
            this._eventAggregator = eventAggregator;
            this.OnClick = new DelegateCommand(this.Button_Clicked);
            _eventAggregator.GetEvent<AnalysisRunTrigger>().Subscribe(ExecuteAnalysisRunTrigger, ThreadOption.BackgroundThread);
            _eventAggregator.GetEvent<AnalysisResultEvent>().Subscribe(OnAnalysisRunResult, ThreadOption.UIThread);
            _eventAggregator.GetEvent<ExceptionRaisedEvent>().Subscribe(OnExceptionRaised,
                                                                       ThreadOption.UIThread);
            this.AnalysisResults = new ObservableCollection<AnalysisResult>();
        }

        private void OnExceptionRaised(ExceptionDetail obj)
        {
               // Removed for now
        }

        private void OnAnalysisRunResult(AnalysisResult analysisResult)
        {
            AnalysisResults.Add(analysisResult);
        }

        private static Person CreatePerson()
        {
               // Removed for now
        }

        private void SetPeopleExecute()
        {
                // Removed for now
        }

        private void GetPersonCallback(Person p)
        {
              // Removed for now
        }

        private void CancelCallback()
        {
             // Removed for now
        }

        private ObservableCollection<AnalysisResult> _analysisResults;
        public ObservableCollection<AnalysisResult> AnalysisResults
        {
            get
            {
                return _analysisResults;
            }
            set
            {
                _analysisResults = value;
                RaisePropertyChangedEvent("AnalysisResults");
            }
        }

        private void ExecuteAnalysisRunTrigger(string triggerState)
        {
            try
            {
                switch (triggerState)
                {
                    case "StartAnalyzis":

                        rulesFactory.Execute();

                        break;
                }
            }
            catch (Exception ex)
            {
                _eventAggregator.GetEvent<ExceptionRaisedEvent>().Publish(new ExceptionDetail() { Message = ex.Message });
            }
        }

        private string _message;
        private readonly IApplicationContextService _contextService;

        public string Message
        {
            get { return _message; }
            set
            {
                _message = value;
                RaisePropertyChangedEvent("Message");
            }
        }

        private void Button_Clicked()
        {
            //throw new NotImplementedException();
        }
    }
}

Note that the AnalysisResults is ObservableCollection...

If I take the RadGridView out of the equation and use the good old Wpf GridView control, my application works, I can see the grid load up with the values for the same code...

What am I missing?
 
 

[Tarun]

Bump...

Any one?

[Dimitrina]

Hi,

In order to use the RadGridView please add references to the following assemblies:

Telerik.Windows.Controls
Telerik.Windows.Controls.GridView
Telerik.Windows.Controls.Input
Telerik.Windows.Data
 

All the best,
Didie
the Telerik team

[Doug]

I have the same issue even with your sample alone.  The XAML has an outline for the grid, but doesn't display anything.  When you run the program you get a blank white screen.  Only caveat is I am using the Office 2013 theme.

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using Telerik.Windows.Controls;
using Telerik.Windows.Controls.GridView;
using Telerik.Windows.Controls.Input;
using Telerik.Windows.Data;

namespace TelerikWpfApp1
{
    /// <summary>
    /// Interaction logic for GridTest.xaml
    /// </summary>
    public partial class GridTest : Window
    {
        public GridTest()
        {
            InitializeComponent();
        }

        public class DemoClass
        {
            public int ID { get; set; }
            public string Name { get; set; }
            public string Company { get; set; }
            public bool IsComplete { get; set; }
            public DateTime DueDate { get; set; }
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            ObservableCollection<DemoClass> myDemoClasses = new ObservableCollection<DemoClass>();

            for (int x = 1; x <= 2000; x++)
            {
                var dc = new DemoClass();
                dc.ID = x;
                dc.Name = "Person " + x.ToString();
                dc.Company = x % 2 == 0 ?
                    "Super Company " + x.ToString() : "Sub-par company " + x.ToString();
                dc.IsComplete = x % 4 == 0 ? true : false;
                dc.DueDate = DateTime.Today.AddDays(x);
                myDemoClasses.Add(dc);
            }

            radGridView1.ItemsSource = myDemoClasses;

        }
    }
}


XAML

<Window x:Class="TelerikWpfApp1.GridTest"
        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"
        Title="GridTest" Height="300" Width="300" Loaded="Window_Loaded">
    <Grid>
        <telerik:RadGridView HorizontalAlignment="Left" Margin="77,46,0,0" Name="radGridView1" VerticalAlignment="Top" />
    </Grid>
</Window>

[Dimitrina]

Hi,

It seems you have referenced the NoXaml binaries. In that case you need to merge the respective Resource Dictionaries.
You can find more information on Implicit Styles here.

Regards,
Didie
Telerik