Questions on UI for WPF Forum

1 answer

166 views

inherit RadTreeViewItem

hello,

i am new to the telerik controls and i have a question to the radtreeview.

I have two normal classes and a hierarichal template. Everything works fine and the data is shown in tree.

Instead of the normal class i want to use the radtreeviewitem. I try to inherit wich works for the nodes but

not for the childs. Can you please give me a advice how to do this. Here is my code and my problem is

the Children property in the class recursiveObject. Thank you and greetings ....

public static ObservableCollection<RecursiveObject> FillRecursive(List<FlatObject> flatObjects, int parentId)

{

ObservableCollection<RecursiveObject> recursiveObjects = new ObservableCollection<RecursiveObject>();

foreach (var item in flatObjects.Where(x => x.ParentId.Equals(parentId)))

{

recursiveObjects.Add(new RecursiveObject

{

Data = item.Data,

NodeId = item.Id,

Menge = item.Menge,

Selected = false,

ParentKey = item.ParentId,

Children = FillRecursive(flatObjects, item.Id)

});

}

return recursiveObjects;

}

public class FlatObject

{

public int Id { get; set; }

public int ParentId { get; set; }

public string Data { get; set; }

public int Menge { get; set; }

public FlatObject(string name, int id, int parentId, int menge)

{

Data = name;

Id = id;

ParentId = parentId;

Menge = menge;

}

public class RecursiveObject : RadTreeViewItem

{

public bool Selected { get; set; }

public int NodeId { get; set; }

public int ParentKey { get; set; }

public string Data { get; set; }

public int Menge { get; set; }

public ObservableCollection<RecursiveObject> Children { get; set; }

}

TreeView

answered on 25 Apr 2018

4 answers

105 views

ResourceType Group

Hi, Is there a way to change the ResourceType orientation to vertical, but mantaining the days in horizontal?

We want to make something like in the attached file.

Greetings.

ScheduleView

answered on 25 Apr 2018

4 answers

295 views

Datapager not displaying

Hi,

I have a relatively simple RadGridView with a datapager. On one machine everything works fine. However, when I check out the sources to another machine everything works, but the datapager does not display, and there is no indication of an error. Any ideas how I could track this down?

Thanks ... Ed

DataPager

answered on 25 Apr 2018

2 answers

246 views

RowValidating anyhow raising a change in SelectedItem ?

Hi ,

i using MVVM and the problem i have is i capture RowValidating Event which is routedto a Method OnValidatingRow(arg)

DoValidatingRow = new DelegateCommand<object>(OnValidatingRow);

there i checkif valid or not and setting in some cases evnt.IsValid = false;

public override void OnValidatingRow(object arg)
{
var evnt = (GridViewRowValidatingEventArgs)arg;

evnt.IsValid = false;

<telerik:RadGridView x:Name="LookupListGridCtrl" ItemsSource="{Binding Nodes, Mode=TwoWay}" SelectedItem="{Binding Nodes.SelectedUiDataItem,Mode=TwoWay}" Grid.Row="1"
                             AutoGenerateColumns="false" GroupRenderMode="Flat" NewRowPosition="Top" SelectionMode="Single" SelectionUnit="FullRow"
                             CanUserDeleteRows="True" ScrollMode="Deferred" IsSynchronizedWithCurrentItem="True" CanUserResizeColumns="True" CanUserSearch="True"
                             RowIndicatorVisibility="Visible" Margin="0,0,0,1" ValidationType="Default">

            <telerik:EventToCommandBehavior.EventBindings>
                <telerik:EventBinding Command="{Binding CommandProvider.DoDeleteRow}" EventName="Deleted" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoInsertRow}" EventName="RowEditEnded" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoAddNew}" EventName="AddingNewDataItem" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoValidatingCell}" EventName="CellValidating" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoValidatingRow}" EventName="RowValidating" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
            </telerik:EventToCommandBehavior.EventBindings>

GridView

answered on 25 Apr 2018

9 answers

88 views

Switched computers and diagram stopped appearing in window

I recently had to switch to a new computer, from win 7 to win 10, and after I installed everything, I loaded my project, rebuilt it, and it all works fine(so far) except the RadDiagram control will not display. What could I be doing/not doing that would cause this.

Diagram

answered on 25 Apr 2018

7 answers

174 views

Keep Mask inside value

Hi,

Sorry if my question has been asked already in this forum.

I'm using a RadMaskedTextInput with a dynamic MASK set in code behind. My current mask is d4Sd3. Therefore, I am expecting 4 digits followed with a capital S and then another 3 digits.

It works well except that in my code behind I would like to get the full content of the input. If I type in 1234567 it displays 1234S567 which is perfect, but then in my code behind I only get 1234567 and the "S" is gone. I need this S to remain in this string. How can I achieve such thing ? This is just an example, it could be any sort of mask.

Cheers,

Chris

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 24 Apr 2018

1 answer

137 views

Word under cursor

I'm starting to play around with the Telerik RTB and I was wondering if there was a way to get the word under the mouse cursor?

RichTextBox

answered on 24 Apr 2018

1 answer

560 views

Changes to object properties not updating RadPropertyGrid

Hello,

I'm binding to multiple items using PropertySetMode="Intersection" and CurrentPropertySet. Changes to the properties from the PropertyGrid combobox work as expected, but changes to the objects from anywhere else in the application do not cause the PropertyGrid to update until the item selection is refreshed. The objects implement INotifyPropertyChanged. Is there something else I'm missing to get the changes to be shown in the PropertyGrid?

Here is some of the relevant XAML and my view model:

<DataTemplate x:Key="TemplateComboBoxTemplate">

<telerik:RadComboBox ItemsSource="{Binding Clubs, Source={StaticResource MyViewModel}}"

SelectedValue="{Binding CurrentPropertySet[ClubID], Mode=TwoWay}"

SelectedValuePath="ID"

DisplayMemberPath="Name"

Margin="0">

</telerik:RadComboBox>

</DataTemplate>

<telerik:RadPropertyGrid

Item="{Binding Players}"

PropertySetMode="Intersection"

AutoGeneratePropertyDefinitions="True"

AutoGeneratingPropertyDefinition="RadPropertyGrid_AutoGeneratingPropertyDefinition"/>

public class MyViewModel : INotifyPropertyChanged

{

public event PropertyChangedEventHandler PropertyChanged;

private ObservableCollection<Club> clubs;

private ObservableCollection<Player> players;

private List<Player> playersTemp = new List<Player>();

public MyViewModel()

{

clubs = new ObservableCollection<Club>();

Club club;

// Liverpool

club = new Club("Liverpool", new DateTime(1892, 1, 1), 45362, 1);

club.Players.Add(new Player("Pepe Reina", 25, Position.GK, "Spain", 1, true));

clubs.Add(club);

// Manchester Utd.

club = new Club("Manchester Utd.", new DateTime(1878, 1, 1), 76212, 2);

club.Players.Add(new Player("Edwin van der Sar", 1, Position.GK, "Netherlands", 2, false));

clubs.Add(club);

// Chelsea

club = new Club("Chelsea", new DateTime(1905, 1, 1), 42055, 3);

club.Players.Add(new Player("Petr Čech", 1, Position.GK, "Czech Republic", 3, true));

clubs.Add(club);

// Arsenal

club = new Club("Arsenal", new DateTime(1886, 1, 1), 60355, 4);

club.Players.Add(new Player("Manuel Almunia", 1, Position.GK, "Spain", 4, false));

clubs.Add(club);

players = new ObservableCollection<Player>(clubs.SelectMany(c => c.Players));

}

public ObservableCollection<Club> Clubs

{

get

{

return this.clubs;

}

public ObservableCollection<Player> Players

{

get

{

return this.players;

}

internal void ClearPlayers()

{

playersTemp.AddRange(players);

players.Clear();

OnPropertyChanged(nameof(Players));

}

internal void SelectPlayers()

{

foreach (var player in playersTemp)

{

players.Add(player);

}

playersTemp.Clear();

OnPropertyChanged(nameof(Players));

}

protected virtual void OnPropertyChanged(PropertyChangedEventArgs args)

{

PropertyChangedEventHandler handler = this.PropertyChanged;

if (handler != null)

{

handler(this, args);

}

private void OnPropertyChanged(string propertyName)

{

this.OnPropertyChanged(new PropertyChangedEventArgs(propertyName));

}

I prepared a sample project starting from another sample I found on this forum but I was unable to upload. I can provide this if it helps.

Thanks for any help you can offer!

PropertyGrid

answered on 24 Apr 2018

1 answer

126 views

Dynamic diagram

Can diagram be painted on intitialization based on input data ?

if i have list of objects and then for each object will be created shape

thank you

Diagram

answered on 24 Apr 2018

4 answers

248 views

Fluent Black Bug ?

Hi,

I am using WPF , MEF, PRISM and Telerik Components RadGrid , RadDataFilter and RadDataPager with the StyleManager.

The Problem i have is in RadDataFilter .If i open the Filter Criterias the Value for Filter is missing in Fluent Dark and Light . But if i only switch the Theme to Win8 it´s there. The Code of my View is below and some Pictures of the visual Tree are in the Attachments.

Is this a Bug in Fluent Styles or mine in xaml ?

In App.xaml.cs i only switch this 2 block of code to see if there is a Field in Win8 and also in Fluent but i can only find it in Win8 Theme correctly.

            //Fluent resources
            FluentPalette.LoadPreset(FluentPalette.ColorVariation.Light);
            FluentPalette.Palette.FontSizeS = 10;
            FluentPalette.Palette.FontSize = 10;
            FluentPalette.Palette.FontSizeL = 12;
            FluentPalette.Palette.FontSizeXL = 14;
            FluentPalette.Palette.FontFamily = new FontFamily("Segoe UI");
            FluentPalette.Palette.CornerRadius = new CornerRadius(5);
            FluentTheme apptheme = new FluentTheme();
            ThemeEffectsHelper.IsAcrylicEnabled = false;
            StyleManager.ApplicationTheme = apptheme;

            //Windows8Touch resources
            //Windows8Palette.Palette.FontSizeS = 8;
            //Windows8Palette.Palette.FontSize = 10;
            //Windows8Palette.Palette.FontSizeL = 12;
            //Windows8Palette.Palette.FontSizeXL = 14;
            //Windows8Palette.Palette.FontSizeXXL = 16;
            //Windows8Palette.Palette.FontFamily = new FontFamily("Courier New");
            //Windows8Palette.Palette.FontFamilyLight = new FontFamily("Courier New");
            //Windows8Palette.Palette.FontFamilyStrong = new FontFamily("Courier New");
            //StyleManager.ApplicationTheme = new Windows8Theme();

If you look into the visual Tree attached pictures it looks like there is something missing under the "Filter Editor" in Fluent Style compared to the same entry in Win8.

I also tried this Styles with different results.

worked ok with Vista => value field is there with StyleManager.ApplicationTheme = new VistaTheme();

but it´s also missing with => StyleManager.ApplicationTheme = new MaterialTheme();

Any Idea how i can fix this please.

Thanks br

Thomas Cinatl

DataFilter

answered on 24 Apr 2018