Questions on UI for WPF Forum

24 answers

708 views

[Solved] GridView Spinner doesn't hide away (IsBusy)

Hello Telerik,

I have an issue when I try using your IsBusy property inside a grid.

Happens that the panel won't disappear. I tried using several of those "Loaded" events to make it happen manually (grid.IsBusy = false;), but then it won't even show at all.

I am using virtualization and infinite scrolling in my grid.

I just need a solution to hide the spinner when the data finish loading.

here is my code:

MainWindow.xaml

<Window x:Class="TelerikVirtualization.MainWindow"

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="MainWindow" Height="900" Width="700" >

<Window.Resources>

<Style x:Key="VitorStyle" TargetType="telerik:RadGridView" >

<Setter Property="AutoGenerateColumns" Value="False"></Setter>

<Setter Property="FilteringMode" Value="FilterRow"></Setter>

</Style>

</Window.Resources>

<Grid>

<Grid.Resources>

<DataTemplate x:Key="RowDetailsTemplate">

<telerik:RadGridView Name="playersGrid" Style="{StaticResource VitorStyle}" IsBusy="True"

ItemsSource="{Binding Children}" >

<telerik:RadGridView.ControlPanelItems>

<telerik:ControlPanelItem ButtonTooltip="Column chooser">

<telerik:ControlPanelItem.Content>

<ListBox ItemsSource="{Binding Columns}" BorderThickness="0">

<ListBox.ItemTemplate>

<DataTemplate>

<CheckBox Content="{Binding Header, Mode=OneWay}" IsChecked="{Binding IsVisible, Mode=TwoWay}" />

</DataTemplate>

</ListBox.ItemTemplate>

</ListBox>

</telerik:ControlPanelItem.Content>

</telerik:ControlPanelItem>

</telerik:RadGridView.ControlPanelItems>

<telerik:RadGridView.Columns>

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

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

<telerik:GridViewDataColumn DataMemberBinding="{Binding ParentID}"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</DataTemplate>

</Grid.Resources>

<telerik:RadGridView Name="RadGridView" ItemsSource="{Binding View}" Style="{StaticResource VitorStyle}" IsBusy="True"

RowDetailsTemplate="{StaticResource RowDetailsTemplate}" AutoGenerateColumns="False">

<telerik:RadGridView.Columns>

<telerik:GridViewToggleRowDetailsColumn/>

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

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

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

<telerik:GridViewDataColumn DataMemberBinding="{Binding Date}"

Header="Date"

DataFormatString="{}{0:dd/MM/yyyy}"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Discontinued}"/>

</telerik:RadGridView.Columns>

<telerik:RadGridView.ControlPanelItems>

<telerik:ControlPanelItem ButtonTooltip="Column chooser">

<telerik:ControlPanelItem.Content>

<ListBox ItemsSource="{Binding Columns}" BorderThickness="0">

<ListBox.ItemTemplate>

<DataTemplate>

<CheckBox Content="{Binding Header, Mode=OneWay}" IsChecked="{Binding IsVisible, Mode=TwoWay}" />

</DataTemplate>

</ListBox.ItemTemplate>

</ListBox>

</telerik:ControlPanelItem.Content>

</telerik:ControlPanelItem>

</telerik:RadGridView.ControlPanelItems>

</telerik:RadGridView>

</Grid>

</Window>

MainWindow.xaml.cs

using System.ComponentModel;

using System.Windows;

namespace TelerikVirtualization

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

BackgroundWorker worker = new BackgroundWorker();

public MainWindow()

{

InitializeComponent();

DataContext = new ViewModel();

}

ViewModel.cs *(install Fody.PropertyChanged nugget to make have it compiling)

using PropertyChanged;

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using Telerik.Windows.Data;

using System.Linq;

using System.Collections;

namespace TelerikVirtualization

{

[ImplementPropertyChanged]*

public class ViewModel

{

public VirtualQueryableCollectionView View { get; set; }

Controller controller;

public ViewModel()

{

controller = new Controller();

View = new VirtualQueryableCollectionView(controller.GetList()) { LoadSize = 10 };

}

Controller.cs

using System;

using System.Linq;

namespace TelerikVirtualization

{

public class Controller

{

public IQueryable GetList()

{

DataClasses1DataContext context = new DataClasses1DataContext();

var result = from x in context.MyTables

select new MyTableEntity() {

Date = x.Date.GetValueOrDefault(DateTime.Now),

Name = x.Name,

UnitPrice = x.UnitPrice.GetValueOrDefault(0),

id = x.ID,

Discontinued = x.Discontinued,

Children = (from y in context.MyChildTables

where y.ParentID == x.ID

select new MyChildTableEntity { ID = y.ID, Name = y.Name, ParentID = y.ParentID })

};

return result;

}

public class MyTableEntity

{

public int id { get; set; }

public string Name { get; set; }

public decimal UnitPrice { get; set; }

public DateTime Date { get; set; }

public object Children { get; set; }

public bool ? Discontinued { get; set; }

}

public class MyChildTableEntity

{

public int ID { get; set; }

public string Name { get; set; }

public int ? ParentID { get; set; }

}

Thank you.

GridView

answered on 23 Aug 2019

5 answers

631 views

SelectedItem Bindable in MVVM

Hi.
Just a question: The SelectedItem is not bindable to a property in the ViewModel on a MVVM pattern?

If not, how to get the selectedItem in the ViewModel?
I need becouse I've to manage the add and remove buttons.

Thanks and regards.

Andrea

TreeView

answered on 23 Aug 2019

1 answer

98 views

I Want to Lock the Diagram

Hi!

how can I set a Tips when RadDiagramShape MouseOver。

I want to Lock the Diagram,but want the Element event can work.

if I Set the IsEnabled is false . (RadDiagramShape_MouseMove) is not Working

Diagram

answered on 22 Aug 2019

1 answer

181 views

how can I set a Tips when RadDiagramShape MouseOver

Hi!

I am using RadDiagram and in my diagram.

how can I Show a Text Tips when RadDiagramShape MouseOver ?

Thanks

Diagram

answered on 22 Aug 2019

4 answers

197 views

GridView with lookup column

Is there any example i can see for RadGridView with a lookup column?

Thank you,
TM

GridView

answered on 21 Aug 2019

3 answers

157 views

Axis multiplier

Hello,

I have a spline series on a cartesian graph, the y values can vary from -750000 to 1000000. I would like to display the labels as multiples of .0001 to save some screen space. I can't see a property to do it.

Thanks.

Alan

ChartView

answered on 20 Aug 2019

2 answers

633 views

RadGridView WPF - How to sort by Group?

Saw instructions on how to use tags GroupByExpression, SelectFields, GroupByFields to sort groups by a sequence number. However, these tags are not available to me to use.

So, I would like to use standard RadGridView properties and techniques to create 3 groups that will be sorted by a sequence number...

3 Columns: Process, Date, Version

3 Groups ordered top to bottom: Group1, Group2, Group3.

When I click on the column name "Process" for example, currently the groups move up or down.

I want to keep the groups in the same visual order Group1, Group2, Group3 but only sort each column within the group.

Any ideas?

GridView

answered on 19 Aug 2019

1 answer

230 views

RadAutoCompleteBox in RadGridView

I have a RadGridView, in the first column is an AutoCompleteBox for searching names. I will search name and paste in to the same column.

I have build the AutoCompleteBox in RadgridView.CellEditTemplate like this:

<telerik:RadAutoCompleteBox DisplayMemberPath="Name"

TextSearchMode="Contains"

TextSearchPath="Name"

SearchText="{Binding Path=Name, Mode=TwoWay}"

AutoCompleteMode="Suggest"

SelectionMode="Single"

BoxesItemStyle="{StaticResource RadAutoCompleteBoxStyle}"

NoResultsContentTemplate="{StaticResource RadAutoCompleteBoxNoResultsContentTemplate}"

NoResultsContent="{x:Static resources:Translations.lbl_NoMatches}"

ItemsSource="{Binding Path=DataContext.Project.Customers, RelativeSource={RelativeSource AncestorType=telerik:RadGridView}}">

But i always get error "System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type; Type='RadWatermarkTextBox'", if i type in the column. DisplayMemberPath="Name" and SearchText="{Binding Path=Name, Mode=TwoWay}" ara in conflict. Can sameone help me?

Thanks in advance.

AutoCompleteBox

answered on 19 Aug 2019

4 answers

468 views

[Solved] Display all children values in filter panel

Hi Telerik,

I'm using a RadTreeListView with allowed filters.

> 'MyTreeListView.png' showing you my expanded tree.

When I click on the filter buttons, the panel is displayed, but in the values area, there are only the values of the "parent" rows (like in the 'Filter1' & 'Filter2' attached files).

I want to know if is it possible to display all existing values in the column ?

For example, in 'Filter2' screen, there will be :

[ ] nul

[ ] Task 1.1 A

[ ] Task 1 A

[ ] Task 1 B

[ ] Task 2 A

Thank you !

Valentin.

TreeListView