Questions on UI for WPF Forum

1 answer

299 views

[Solved] Filtering on an enum collection

Suppose you have the following definitions:

public enum Category { Spicy, Fat, Tasty, Expensive};

public class Dish

{

public string Name {get; set;}

public Category[] Categories {get; set;}

}

I show a collection of Dish objects in a RadGridView. As property Categories is a collection I concatenate the values into a single string, e.g. "Spicy, Fat". Now I would like to add some custom filtering behavior that makes it possible to this on the Categories column:

Show a sorted list of all the values in the Category enum (or perhaps only the values that are used by the Dish objects in the grid)
Use a CheckedList so that more than one value can be selected.
When more than one Category is used in the filter I want to see all items having at least one of the grades (i.e. an OR condition).

Example:
Grid content [Name: Categories]
- Filet Mignon: Expensive, Fat
- Sausage: Fat
- Thai Curry: Spicy, Tasty

If I select values Fat and Expensive I should see the rows for FiletMignon (matches both) and Sausage (matches Fat).
If I select values Spicy and Expensive I should see the rows for FiletMignon (matches Expensive) and ThaiCurry (matches Spicy).

I would be more than grateful for some help on this so thanks in advance!

GridView

answered on 13 Dec 2010

2 answers

221 views

Data Annotation Issue

Hi telerik Team

It seems that DataAnnotations don't work in RadControls_for_WPF35_2010_3_1110_Trial.

I build a Testclass and set it as ItemSource on GridView but except DisplayName all attributes are ignored.

public class Test

{

[Display(AutoGenerateField = false)]

[RangeAttribute(1, 10)]

public int Id { get; set; }

[DisplayName("TestNumber")]

[Display(Order = 1)]

[Required(AllowEmptyStrings = false, ErrorMessage = "Exception")]

public string Number { get; set; }

[Display(Order = 0)]

[Required(AllowEmptyStrings = false, ErrorMessage = "Exception")]

public string Name { get; set; }

}

List<Test> testList = new List<Test>();

Test test = null;

for (int i = 0; i < 10; i++)

{

test = new Test();

test.Id = i;

test.Name = "Name" + i.ToString();

test.Number = i.ToString();

testList.Add(test);

}

radGridView.ItemsSource = testList;

Your artikel here say it should work:
http://www.telerik.com/help/wpf/gridview-prevent-column-autogenerate.html
http://www.telerik.com/products/wpf/gridview.aspx#built-in-data-validation

What i'm doing wrong?

PS: I also try 00968RadControls_for_WPF_40_2010_3_1206_TRIAL_hotfix

PPS: It would great if user could add Sample VS Project to posts, not just images.

GridView

answered on 13 Dec 2010

1 answer

177 views

Expression_Dark theme for WPF TabControl

Expression_Dark theme is only for RadTabControl. Anyway to apply it to normal TabControl? (Can't use RadTabControl due to its buggy behvior in PRISM as a region).

Following in the markup doesn't work because there is no key defined in Expression_Dark theme for normal tabcontrol

<Style TargetType="{x:Type TabControl}" BasedOn="{StaticResource {telerik:ThemeResourceKey ThemeType=telerik:Expression_DarkTheme, ElementType=TabControl}}" />

General Discussions

answered on 13 Dec 2010

3 answers

208 views

Print

How do you print the Schedule view?
I don't want to print the actual screen ( using PrintVisual), but print the entire view?

ScheduleView

answered on 13 Dec 2010

1 answer

94 views

Takes more time (30 minutes)+Wpf Chart + Data Point with lineseries +Records more than 70000 records

Hi

We are creating an Lineseries chart with datapoints which has around 70000+ records .It is taking more than 30 minutes to load the chart .we have disable the animations to false(ChartArea.EnableAnimations = false) and also SamplingSettings.SamplingThreshold = 0. so please help us.The code we are using are as below

private void BuildDiskIoDetailsGraph(ObservableCollection<DiskIoDetails> raw, Telerik.Windows.Controls.RadChart ctrlChart, string title, bool isPrefetch)

{

if (raw.Count > 0)

{

DataSeries chartSeries = new DataSeries();

chartSeries.Definition =

new LineSeriesDefinition() { ShowItemLabels = false, ShowItemToolTips = true };

ctrlChart.SamplingSettings.SamplingThreshold = 0;

ctrlChart.DefaultView.ChartArea.EnableAnimations =

false;

ctrlChart.DefaultView.ChartLegend.Visibility =

Visibility.Collapsed;

ctrlChart.DefaultView.ChartLegend.UseAutoGeneratedItems =

true;

ctrlChart.DefaultView.ChartArea.AxisX.Step = 20f;

ctrlChart.DefaultView.ChartArea.AxisX.AutoRange =

true;

ctrlChart.DefaultView.ChartArea.AxisX.Title =

"Time";

List<object> processList = raw.Select(d => d.GetType().InvokeMember("ProcessNamePID", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, d, null)).Distinct().ToList();

foreach (object process in processList)

{

Color color = GetNextColor();

if (process.ToString().ToLower().StartsWith("system")) color = Colors.Blue;

if (process.ToString().ToLower().StartsWith("winlogon")) color = Colors.Maroon;

if (process.ToString().ToLower().StartsWith("idle")) color = Colors.Green;

chartSeries.Definition.Appearance.Foreground =

new SolidColorBrush(color);

chartSeries.Definition.Appearance.Fill =

new SolidColorBrush(color);

chartSeries.Definition.Appearance.PointMark.Fill =

new SolidColorBrush(color);

chartSeries.Definition.Appearance.Stroke =

new SolidColorBrush(Colors.LightGray);

chartSeries.Definition.Appearance.PointMark.Stroke =

new SolidColorBrush(color);

List<DiskIoDetails> dataList = raw.Where(d => d.GetType().InvokeMember("ProcessNamePID", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, d, null).ToString().Equals(process.ToString())).ToList();

foreach (object item in dataList)

{

string startTime = item.GetType().InvokeMember("StartTime", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, item, null).ToString();

string offset = item.GetType().InvokeMember("ByteOffset", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, item, null).ToString().TrimStart("0x".ToCharArray());

string ioType = item.GetType().InvokeMember("IOType", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, item, null).ToString();

string endTime = item.GetType().InvokeMember("EndTime", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, item, null).ToString();

string processName = item.GetType().InvokeMember("ProcessNamePID", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, item, null).ToString();

if (ioType.ToLower().Contains("read")) ioType = "Read";

else ioType = "Write";

if (string.IsNullOrEmpty(offset)) offset = "0";

if (chartSeries != null)

{

double initTime = Convert.ToDouble(startTime) / _nsPerSec;

double complete = Convert.ToDouble(endTime) / _nsPerSec;

DataPoint dp = new DataPoint( (Convert.ToDouble(startTime) / _nsPerSec),long.Parse(offset, System.Globalization.NumberStyles.HexNumber));

dp.Tooltip =

string.Format("{0}{1}InitTime: {2}{1}Complete Time: {3}{1}{4}", ioType, Environment.NewLine, initTime, complete, processName);

chartSeries.Add(dp);

//m_Line.Interactivity.Tooltips.Add(string.Format("{0}{1}InitTime: {2}{1}Complete Time: {3}{1}{4}", ioType, Environment.NewLine, initTime, complete, processName));

}

ctrlChart.DefaultView.ChartArea.DataSeries.Add(chartSeries);

}

Chart

answered on 13 Dec 2010

8 answers

295 views

Not able to click Add new item

Hello, I am using LINQ to SQL class in order to retrieve and write data in my SQL. I have a table called Student and Subjects. Student is my parent table and Subjects is my child table. I successfully displays per student his/her subjects with Hierarchical Data Grid. I can add, delete, update, read data in my Subjects using the Property CanUserInsertRows and ShowInsertRow as true. Now my problem is that when I want to add new item in my Student table I cannot click my add new item or it is not clickable. Any help please?
Here's my xaml file

<Window x:Class="HierarchiyGridSuccess.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerikData="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

Title="MainWindow" Height="350" Width="525">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto"/>

</Grid.RowDefinitions>

<telerik:RadGridView Grid.Row="0" x:Name="rgvData" ShowInsertRow="True" AutoGenerateColumns="False" telerik:Theming.Theme="Windows7" ItemsSource="{Binding}" >

<telerik:RadGridView.ChildTableDefinitions>

<telerik:GridViewTableDefinition />

</telerik:RadGridView.ChildTableDefinitions>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentID}" Header="Student ID" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentFN}" Header="Student First Name" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentLN}" Header="Student Last Name" />

</telerik:RadGridView.Columns>

<telerik:RadGridView.HierarchyChildTemplate>

<DataTemplate>

<telerik:RadGridView x:Name="RadGridView1" Loaded="rgvData_Loaded" AutoGenerateColumns="False" ShowInsertRow="False" CanUserInsertRows="False" ItemsSource="{Binding Subjects}" ShowGroupPanel="False" IsReadOnly="False">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding SubjectName}" Header="Subject Name" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding SubjectProf}" Header="Professor" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</DataTemplate>

</telerik:RadGridView.HierarchyChildTemplate>

</telerik:RadGridView>

<Button Content="Save!" Width="Auto" Height="Auto" Grid.Row="1" Click="Button_Click" />

</Grid>

</Window>

And my class file

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

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.Navigation;

using System.Windows.Shapes;

using System.Collections.Specialized;

using Telerik.Windows.Controls;

using Telerik.Windows.Controls.GridView;

namespace HierarchiyGridSuccess

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

DataAccessDataContext m_dcData;

public MainWindow()

{

InitializeComponent();

this.Loaded += new RoutedEventHandler(MainWindow_Loaded);

this.rgvData.Items.CollectionChanged += new NotifyCollectionChangedEventHandler(Items_CollectionChanged);

rgvData.Filtered += new EventHandler<Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs>(rgvData_Filtered);

}

void rgvData_Loaded(object sender, RoutedEventArgs e)

{

var childGrid = (RadGridView)sender;

var parentRow = childGrid.ParentRow;

if (parentRow != null)

{

rgvData.SelectedItem = childGrid.DataContext;

parentRow.IsExpandedChanged += new RoutedEventHandler(parentRow_IsExpandedChanged);

}

void parentRow_IsExpandedChanged(object sender, RoutedEventArgs e)

{

rgvData.SelectedItem = ((GridViewRow)sender).DataContext;

}

void rgvData_Filtered(object sender, Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs e)

{

rgvData.ItemsSource = m_dcData.Students;

}

private void Items_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)

{

try

{

if (e.Action == NotifyCollectionChangedAction.Add)

{

foreach (Student item in e.NewItems)

{

this.m_dcData.Students.InsertAllOnSubmit(e.NewItems.OfType<Student>());

}

if (e.Action == NotifyCollectionChangedAction.Remove)

{

this.m_dcData.Students.DeleteAllOnSubmit(e.OldItems.OfType<Student>());

}

catch (Exception s)

{ }

}

void MainWindow_Loaded(object sender, RoutedEventArgs e)

{

m_dcData = new DataAccessDataContext();

m_dcData.Log = Console.Out;

DataContext = m_dcData.Students;

rgvData.ShowInsertRow = true;

}

private void Button_Click(object sender, RoutedEventArgs e)

{

var changes = this.m_dcData.GetChangeSet();

rgvData.BeginInsert();

MessageBox.Show(string.Format("There are {0} inserts and {1} deletes pending.", changes.Inserts.Count, changes.Deletes.Count));

m_dcData.SubmitChanges();

}

How come I cannot click the add new item of my parent table?

GridView

answered on 11 Dec 2010

1 answer

140 views

How to disable animation when MinimizedItemsPosition changes?

I have set IsItemsAnimationEnabled to false.
As expected, this does prevent animation when I drag and swap one item with another.

I am changing MinimizedItemsPosition when the user clicks a button. The minimized items move to the newly specified position, but the movement is animated.
Is this the desired behavior?

My controls do not animate well, so I am trying to avoid these animations.
Buzz

TileView

answered on 11 Dec 2010

1 answer

124 views

[Solved] ShowDistinctFilters hides close button

Hi,

I just want to mention that you should review the filter dropdown template.
Because when I want to hide Distinct Filters I also loose the close button with it.
I know this is because "ShowDistinctFilters" hides the "top part" of the dropdown.

But if I want (which I do often) hide distinct filters I loos this (important) button.
Of course I could generate my own template - but this should be "in the box".

Manfred

GridView

answered on 11 Dec 2010

10 answers

301 views

Create label box and textbox in rad grid view?

sorry the table structure is not good.so i create one more thread.
Hi telerik team,
I am sivakanth. we are using ur telerik rad controls in our latest WPF project.
I want to create following table structure inside rad gridview.

Enter Name	Text Box
Department	Combo box
Gender	Radio button
Save	Button

Is it possible to create inside radgrid view ?

if possible mean give me some coding guidlines.

if not posible mean than which control i used to create these structure.

thank you.

GridView

answered on 11 Dec 2010

5 answers

183 views

[Solved] RadDragAndDropManager.StartDrag

Is there an example of manually starting a drag via StartDrag?

Here is what I am attempting to do:
Drag files (ie from Windows Explorer, Desktop, etc) to a Telerik control (in this instance a RadTreeListView).

What I already have working:
Dragging within the RadTreeListView is fully implemented

What I have tried:
Register the DragOver event on the RadTreeListView with this code:

if (!RadDragAndDropManager.IsDragging)

{

Collection<object> pPayload = new Collection<object>();

if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())

{

foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())

{

if (File.Exists(pFilePath))

{

ITrack pTrack = new MediaTrack();

pTrack.IsMasterTrack = true;

pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);

pTrack.FileName = pFilePath;

pPayload.Add(pTrack);

}

if (pPayload.Count > 0)

{

RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);

}

if (!RadDragAndDropManager.IsDragging)

{

Collection<object> pPayload = new Collection<object>();

if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())

{

foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())

{

if (File.Exists(pFilePath))

{

ITrack pTrack = new MediaTrack();

pTrack.IsMasterTrack = true;

pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);

pTrack.FileName = pFilePath;

pPayload.Add(pTrack);

}

if (pPayload.Count > 0)

{

RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);

}

if (!RadDragAndDropManager.IsDragging)

{

Collection<object> pPayload = new Collection<object>();

if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())

{

foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())

{

if (File.Exists(pFilePath))

{

pPayload.Add(pFilePath);

}

if (pPayload.Count > 0)

{

RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);

}

The problem is it never starts the drag! Is there something I am missing? I would have thought this would have kick-started the Rad Drag and Drop features, but it doesn't seem to do anything.

Travis

	if (!RadDragAndDropManager.IsDragging)
            {
                Collection<object> pPayload = new Collection<object>();


                if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())
                {
                    foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())
                    {
                        if (File.Exists(pFilePath))
                        {
                            ITrack pTrack = new MediaTrack();
                            pTrack.IsMasterTrack = true;
                            pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);
                            pTrack.FileName = pFilePath;
                            pPayload.Add(pTrack);
                        }
                    }
                }
                if (pPayload.Count > 0)
                {
                    RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);
                }
            }
	if (!RadDragAndDropManager.IsDragging)
            {
                Collection<object> pPayload = new Collection<object>();
                if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())
                {
                    foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())
                    {
                        if (File.Exists(pFilePath))
                        {
                            ITrack pTrack = new MediaTrack();
                            pTrack.IsMasterTrack = true;
                            pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);
                            pTrack.FileName = pFilePath;
                            pPayload.Add(pTrack);
                        }
                    }
                }
                if (pPayload.Count > 0)
                {
                    RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);
                }
            }
	if (!RadDragAndDropManager.IsDragging)
            {
                Collection<object> pPayload = new Collection<object>();
                if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())
                {
                    foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())
                    {
                        if (File.Exists(pFilePath))
                        {
                            ITrack pTrack = new MediaTrack();
                            pTrack.IsMasterTrack = true;
                            pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);
                            pTrack.FileName = pFilePath;
                            pPayload.Add(pTrack);
                        }
                    }
                }
                if (pPayload.Count > 0)
                {
                    RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);
                }
            }
	if (!RadDragAndDropManager.IsDragging)
            {
                Collection<object> pPayload = new Collection<object>();
                if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())
                {
                    foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())
                    {
                        if (File.Exists(pFilePath))
                        {
                            ITrack pTrack = new MediaTrack();
                            pTrack.IsMasterTrack = true;
                            pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);
                            pTrack.FileName = pFilePath;
                            pPayload.Add(pTrack);
                        }
                    }
                }
                if (pPayload.Count > 0)
                {
                    RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);
                }
            }
	if (!RadDragAndDropManager.IsDragging)
            {
                Collection<object> pPayload = new Collection<object>();
                if (e.Data is System.Windows.DataObject && ((System.Windows.DataObject)e.Data).ContainsFileDropList())
                {
                    foreach (string pFilePath in ((System.Windows.DataObject)e.Data).GetFileDropList())
                    {
                        if (File.Exists(pFilePath))
                        {
                            ITrack pTrack = new MediaTrack();
                            pTrack.IsMasterTrack = true;
                            pTrack.Name = Path.GetFileNameWithoutExtension(pFilePath);
                            pTrack.FileName = pFilePath;
                            pPayload.Add(pTrack);
                        }
                    }
                }
                if (pPayload.Count > 0)
                {
                    RadDragAndDropManager.StartDrag(TrackListTreeListView, pPayload, null);
                }

DragAndDrop

answered on 11 Dec 2010