Questions on UI for WPF Forum

0 answers

119 views

Hello,
I need to D&D from GridView to TreeView (+ Treeview on itself).
Everything is OK, based on the examples that are in the WPF Demo (TreeViewDragDropBehavior & GridViewDragDropBehavior).
The problem is I'm not able to reproduce the standard behavior like the one in Windows explorer :
- If the node is not expanded, I need to expand it after a delay. I tried the DropExpandDelay, but without any success
- There's no effect to show I'm over a node ("over" effect).
Any advices will be welcome
Best regards

DragAndDrop

asked on 06 Feb 2014

1 answer

240 views

MVVM Grid Binding how to handle Parameters

Hello I've a RadGridView that is placed withing a RadWindow and wrapped within an UserControl.

The RadWindow will be initialized by an ContextMenu of a parent RadGridView (selected item) please see the code snippets below.

Code from the ContextMenu to open a new RadWindow:

var tmpItem = row.Item as ItemModel;

.....

case "ViewRelatedItems":

if ( tmpItem != null )

{

RadWindow radWindow = new RadWindow();

radWindow.Width = 510;

radWindow.Height = 350;

UserControlRelatedItemsEntries ucTmp = new UserControlRelatedItemsEntries(tmpItem.ID, tmpItem.Type);

radWindow.Content = ucTmp;

radWindow.Owner = Application.Current.MainWindow;

radWindow.WindowStartupLocation = WindowStartupLocation.CenterScreen;

radWindow.ResizeMode = ResizeMode.NoResize;

radWindow.Header = "Entries:"; //TODO

radWindow.Show();

}

break;

XAML of the UserControl:

<UserControl x:Class="TEST..UserControlViewEntries"

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:sys="clr-namespace:System;assembly=mscorlib"

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

xmlns:viewModel="clr-namespace:test.ViewModels;assembly=Test.ViewModels"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="500">

<UserControl.DataContext>

<viewModel:MyViewModel />

</UserControl.DataContext>

<Grid>

<telerik:RadGridView x:Name="radGridEntries" Margin="0,30,0,0"

ItemsSource="{Binding Entries}"

AutoGenerateColumns="False" DataLoadMode="Asynchronous">

<telerik:RadGridView.Columns>

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

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

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

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

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

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</Grid>

</UserControl>

Code of the ViewModel

public class MyViewModel : ObservableObjectBase

{

#region Properties

public int SelectedItemID { get; set; }

public int SelectedItemTypeID { get; set; }

private ObservableCollection<XModel> _items;

public ObservableCollection<XModel> Entries

{

get

{

if ( _items == null )

{

_items = new ObservableCollection<XModel>();

var tmpResults = DataService.GetItems( this.SelectedItemID, this.SelectedItemTypeID);

tmpResults.ForEach( i => _items.Add( i ) );

}

return _items;

}

#endregion

#region Methods

#endregion

#region Constructors

public MyViewModel ()

{ }

#endregion

}

I come here not further...

How can i put the two required values SelectedItemID and SelectedItemTypeID to the ViewModel, so that they can be used when the DataBinding request the the Entries?

I'll hold this 2 values inside the ContextMenu "tmpItem" (e.g. tmpItem.ID and tmpItem.Type) but i've no idea how i could put that throuth the UserControl and ViewModel.

I think I am using the wrong approach... hopefully someone could give me an idea how to solve this issue.

Any help on this would be very welcome!

Kind regards
Daniel

GridView

answered on 06 Feb 2014

3 answers

150 views

Content of RadPane no shown when setting IsHidden to false

Hi!

I have a case where setting the IsHidden property to "false" expands the hidden pane, but does not draw the content.
When I then toggle the IsHidden property to true and fals again, the content is displayed correctly!

What can be the cause of this?

Regards,
Lennart

Docking

answered on 06 Feb 2014

12 answers

978 views

[Solved] Binding Document

I've seen a few examples - most Silverlight :-( - where you bind the RadRichTextBox to an "item"-object or data from a DataBase.
But how could this be done to a RadRichTextBox.Document.
Say I get a datarow from a table and I want to create a new document with content/text from this datarow.

RichTextBox

answered on 06 Feb 2014

4 answers

165 views

GridView and Touch Scrolling

I am unable to get touch scrolling to work properly on my grid view. When I scroll using the mouse everything works perfectly, but if I use a finger the scroll always jumps to either the first or last record in the list.

Ideas/Suggestions?

D

GridView

answered on 06 Feb 2014

5 answers

214 views

Parsing problem while typing in date

Hi, we're experiencing what looks like a bug in the RadDatePicker control.

I've set the culture in the App.xaml.cs file, and the DatePicker correctly displays the dates as intended:

/// <summary>

/// The main application class.

/// </summary>

public partial class App

{

#region Constructor

/// <summary>

/// Initializes a new instance of <see cref="App" />.

/// </summary>

public App()

{

StyleManager.ApplicationTheme = new Windows8Theme();

InitializeComponent();

Windows8Palette.Palette.AccentColor = (Color)Resources["AccentColor"];

ConfigureCulture();

}

#endregion

#region Private Methods

/// <summary>

/// Configures the culture for the application.

/// </summary>

private static void ConfigureCulture()

{

// set the default culture to English (AU)

// ReSharper disable UseObjectOrCollectionInitializer

var culture = new CultureInfo("en-AU");

// ReSharper restore UseObjectOrCollectionInitializer

// long date format is used on date controls ("D")

culture.DateTimeFormat.LongDatePattern = "ddd d-MMM-yyyy";

// short date format is used in grids ("d")

culture.DateTimeFormat.ShortDatePattern = "dd-MMM-yy";

Thread.CurrentThread.CurrentCulture = culture;

Thread.CurrentThread.CurrentUICulture = culture;

}

#endregion

}

However when a user types in '25-9-13', as soon as they type the '9', the date is shown as 'Mon 1-9-2025' in the tooltip, ie, it suddenly flips the format to yy-mm-dd.

Note that this is not a problem in the corresponding Silverlight control - typing '25-9' correctly shows 'Wed 25-Sep-2013' in the tooltip.

Is this a bug, or something that we can resolve somehow?

Thanks

Sam

DatePicker

answered on 06 Feb 2014

1 answer

133 views

[Solved] Drag and drop inside treeviewlist item with dragdropmanager

Hi,
I have been working on a project with TreelistView and DragDropManager.
I have a treelistview and i want to drag and drop the items in it.
For example, my treelistview items are like that.

Main_1
- Sub 1_1
- Sub 1_2
Main_2
- Sub 2_1
- Sub 2_2
- Sub 2_3

and i want to drag (Sub 2_2) from (Main_2) to (Main_1). But i can't find the drop position of dragging item, and how can i use this drop position to find the item which dragging item is dropped on.

One more question:
var item = (args.OriginalSource as FrameworkElement).ParentOfType<???????>() -->> What is the correct type for treelistview.

a basic example could help me.
with kind regards

TreeListView

answered on 06 Feb 2014

1 answer

243 views

RadPane IsHidden binding doesn't hide all panes when in RadPaneGroup

Hi,

I'm having trouble with the IsHidden binding of my RadPanes. If I have 2 or more RadPanes within a RadPaneGroup and have their IsHidden properties bound to a static class boolean property, only 1 of the multiple panes within the RadPane group hides when I toggle the property from false to true.

All IsHidden bindings are working, there appears to be a bug when toggling the binding on more than one RadPane within a RadPaneGroup.

I'm using library 2013.1.220.40.

XAML Example:

<telerikDocking:RadSplitContainer Orientation="Horizontal" InitialPosition="DockedBottom">

<telerikDocking:RadPaneGroup>

<TAS2DockingPanes:ModificationsPane x:Name="radPaneModifications" CanUserClose="False" CanDockInDocumentHost="False" IsHidden=

"{Binding Source={x:Static TAS2DockingPanes:VisibilitySettings.Instance}, Path=CanViewModificationsPane, Converter={StaticResource boolToReverseConverter}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

/>

<TAS2DockingPanes:ExtrasPricingPane x:Name="radPanePricingExtras" CanUserClose="False" CanDockInDocumentHost="False" IsHidden=

"{Binding Source={x:Static TAS2DockingPanes:VisibilitySettings.Instance}, Path=CanViewExtrasPricingPane, Converter={StaticResource boolToReverseConverter}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

/>

</telerikDocking:RadPaneGroup>

</telerikDocking:RadSplitContainer>

Static Class

public class VisibilitySettings : INotifyPropertyChanged

{

private static readonly VisibilitySettings instance = new VisibilitySettings();

private VisibilitySettings() { }

public static VisibilitySettings Instance

{

get

{

return instance;

}

private static bool m_canViewExtrasPricingPane;

private static bool m_canViewModificationsPane;

public static void SetVisibilitySettings(bool canViewExtrasPricingPane, bool canViewModificationsPane)

{

Instance.CanViewExtrasPricingPane = canViewExtrasPricingPane;

Instance.CanViewModificationsPane = canViewModificationsPane;

}

public bool CanViewExtrasPricingPane

{

get

{

return m_canViewExtrasPricingPane;

}

set

{

m_canViewExtrasPricingPane = value;

OnPropertyChanged(new PropertyChangedEventArgs("CanViewExtrasPricingPane"));

}

public bool CanViewModificationsPane

{

get

{

return m_canViewModificationsPane;

}

set

{

m_canViewModificationsPane = value;

OnPropertyChanged(new PropertyChangedEventArgs("CanViewModificationsPane"));

}

//INotifyPropertyChanged Event

public event PropertyChangedEventHandler PropertyChanged;

public void OnPropertyChanged(PropertyChangedEventArgs e)

{

if (PropertyChanged != null)

PropertyChanged(this, e);

}

Has anyone else noticed such behaviour?

Many thanks,

Rob

Docking

answered on 06 Feb 2014

1 answer

125 views

Drag and drop from Radtreeviewitem to RadDiagram

Hi,
I've a tree of files managed with a RadTreeView and I need to select a RadTreeViewItem and display its content on a RadDiagram with a drag and drop operation (in style of Visual studio)
How can I do this? I've already followed several tutorial on this web site without success.

Thanks
C

DragAndDrop

answered on 06 Feb 2014

2 answers

730 views

[Solved] Showing a progress bar on RadGridView at each row-level?

A picture is worth a thousand words, so I attach you my need.

Obvioulsy such image belong to the classical GridView incorporated by defaul on VS Studio 2012 stuff.

That's the XAML code for that:

<DataGridTemplateColumn Header="Actual" Width="80" Visibility="Visible">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <ProgressBar Value="{Binding Path=Stock_Actual, Mode=OneWay}" Minimum="0" Maximum="{Binding Stock_max}" />
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
Thanks in advance for your help,

General Discussions

answered on 06 Feb 2014