Questions on UI for WPF Forum

2 answers

182 views

I've started a new thread becouse that question can be interested to others members of the comunity. The exThread is:
http://www.telerik.com/forums/timeline-group-sorting
Now my question about group height of groups in timeline control.
I have 3 groups (pic1) and i've got TimelineGroupPeriodControl instances (MainTimeline is my instance of radtimeline):

var e = MainTimeline.ChildrenOfType<TimelineGroupPeriodControl>().ToList();
e.ForEach(control =>
{
var str = control.ActualHeight.ToString(CultureInfo.InvariantCulture);
builder.AppendLine(str);
});
MessageBox.Show(builder.ToString());

When the control is in state such as pic1 this code returns me result: 15, 15, 15;
When the items intersecs such as pic2 this code return me 15, 15, 15 too.
But the actual height of period groups is differnt in this 2 cases. How can I get the actualHeight of group. And groupName (скл... in my case) too.
Thanks!
nd one more qustion. With the new version of teleik wpf cotrols (2014) the radtimeline throws an exception in XAML visual designer. The stack trace is:

XamlParseException: TargetType "RadSlider" is not match the type of element "TimelineScrollBar".

в System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
в System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
в System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
в System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
в System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
в System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
в System.Windows.FrameworkElement.ApplyTemplate()
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
в System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
в System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
в System.Windows.Controls.Grid.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
в System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Border.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Control.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)

TimeLine

answered on 10 Jun 2014

1 answer

110 views

RadPivotMap - Ordering Category

Is there an easy way to change the display order of Categories? The categories are showing up in the display of the Pivot map ( A B ) I want them to show up ( B A ) How do I specify the order?

Thanks
Paul

TreeMap and PivotMap

answered on 10 Jun 2014

3 answers

637 views

HorizontalAlignment of CheckBox Column

Hello,

How can I set the HorizontalAlignment property to "Center" of a CheckBox Column (GridViewDataColumn = boolean)?

Regards,

Henrique

GridView

answered on 09 Jun 2014

11 answers

357 views

[Solved] Timeline Group Sorting

Hello!
I've implemented DragAndDrop behavior for my TimeLine. But my timelineitemssource have several groups. When I drag items inside the group all is right. Start time in source are changing and visualization occured. My next goal is realise DragAndDrop between groups. And the goal is reached. But sometimes (I can't understand why) group soring is changed. Images attached. I have DataAnnotaion on timeline and it's height and margins depends on groups. When sorting changed occured all my logic breaks. Can you tell me when group sorting occured and what is the rule of sorting. If Group sorting can be disabled it's will be super!
Sorry for my English.

TimeLine

answered on 09 Jun 2014

5 answers

375 views

TextBox.IsReadOnly doesn't work inside RadPropertyGrid.PropertyDefinitions

One TextBox is outside of RadPropertyGrid and One TextBox is inside RadPropertyGrid.  The two are set to IsReadOnly=True, but only the outside one actually show read-only.



Version: Telerik.Windows.Controls.Data, Version=2013.3.1316.45.

Compiled with .Net 4.5

WPF app.

<

Window

x:Class="PropGridTest.MainWindow"

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

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

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

x:Name="ThisControl"

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

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto"/>

<RowDefinition Height="*"/>

</Grid.RowDefinitions>

<TextBox IsReadOnly="True" Text="Read-only" />

<telerik:RadPropertyGrid

Grid.Row="1"

AutoGeneratePropertyDefinitions="False"

Item="{Binding ElementName=ThisControl}">

<telerik:RadPropertyGrid.PropertyDefinitions>

<telerik:PropertyDefinition

DisplayName="Prop 1"

GroupName="Group 1"

OrderIndex="0">

<telerik:PropertyDefinition.EditorTemplate>

<DataTemplate DataType="telerik:PropertyDefinition">

<TextBox HorizontalAlignment="Left" IsReadOnly="True" Text="Read-only" Width="100"/>

</DataTemplate>

</telerik:PropertyDefinition.EditorTemplate>

</telerik:PropertyDefinition>

</telerik:RadPropertyGrid.PropertyDefinitions>

</telerik:RadPropertyGrid>

</Grid>

</Window>

PropertyGrid

answered on 09 Jun 2014

6 answers

264 views

Specifying a binding for Tile.DisplayIndex causes exception

Hello Telerik,

I'm trying to specify a binding on a tile's displayindex through a style. For some reason i get an exception stating:

System.ArgumentNullException occurred
HResult=-2147467261
Message=Value cannot be null.
Parameter name: property
Source=PresentationFramework
ParamName=property
StackTrace:
at System.Windows.Setter.CheckValidProperty(DependencyProperty property)
InnerException:

This is my style for the tiles:



<!-- Tile Style -->

<Style TargetType="{x:Type telerik:Tile}"

<Setter Property="Background"

<Setter.Value

<LinearGradientBrush

<GradientStop Color=

"{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:Tile}, Mode=FindAncestor}, Path=Content.Color.StartColor}"

Offset="0.0"

/>

<GradientStop Color=

"{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:Tile}, Mode=FindAncestor}, Path=Content.Color.EndColor}"

Offset="1.0"

/>

</LinearGradientBrush

</Setter.Value

</Setter

<Setter Property="TileType" Value="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Content.Size, Converter={StaticResource tileTypeConverter}}"

/>

<Setter Property="DisplayIndex" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:Tile}, Mode=FindAncestor}, Path=Content.DisplayIndex, Mode=OneTime}" />

</Style>

Am I doing something obviously wrong?

TileList

answered on 09 Jun 2014

3 answers

230 views

Set columns to same width

Hi,

I have a requirement of setting column widths to a uniform value, based on the widest column within a property group description.

Attached is a drawing illustrating the requirement.

Is this possible to do?

Thanks,
Edwin

PivotGrid

answered on 09 Jun 2014

5 answers

439 views

Binding Errors

Hi,

using RadDiagram shows binding errors at debug:

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=StartPoint; DataItem=null; target element is 'PathFigure' (HashCode=17749809); target property is 'StartPoint' (type 'Point')

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=StartBezierPoint; DataItem=null; target element is 'LineSegment' (HashCode=40121966); target property is 'Point' (type 'Point')

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=EndPoint; DataItem=null; target element is 'PathFigure' (HashCode=45256881); target property is 'StartPoint' (type 'Point')

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=EndBezierPoint; DataItem=null; target element is 'LineSegment' (HashCode=41585520); target property is 'Point' (type 'Point')

I ran the "custom connector" from Xaml-skd to check that I have no mistake in my application - shows the same errors.

Manfred

Diagram

answered on 09 Jun 2014

6 answers

204 views

NumericUpDown in ScrollViewer Touch Not Working Properly

Hi

If I place a NumericUpDown control with Windows8Touch theme in a ScrollViewer control, I can no longer hold down the plus or minus buttons to change the value. I can only do individual clicks.

Is there anyway to get round this?

Thanks

Nick

NumericUpDown

answered on 09 Jun 2014

5 answers

518 views

[Solved] Getting selected row of a child grid

I am having some issues getting the row that is selected in any child grid.

My main grid is a grid of Manufacturers and each row can be expanded to view each manufacturer's parts. This is no problem. The problem is getting the current row with in each expanded child grid. Here is my code so far.

public partial class ManufacturersAndPartsSearch : Window

{

private ViewModels.ManufacturersAndPartsSearchViewModel vm;

public ManufacturersAndPartsSearch()

{

InitializeComponent();

var context = new ViewModels.ManufacturersAndPartsSearchViewModel(this);

this.vm = context;

this.DataContext = vm;

GridViewTableDefinition d = new GridViewTableDefinition();

d.Relation = new Telerik.Windows.Data.PropertyRelation("ChildParts");

//add child table defination to gridview

this.GridView.ChildTableDefinitions.Add(d);

this.GridView.DataLoaded += GridView_DataLoaded;

//this is to alter changes to each child grid

this.GridView.DataLoading += GridView_DataLoading;

//event to check and set the view model's current row to a heirarchial's currently selected row if selected

//explanation

/*The original code used data binding to set the current row in the viewmodel equal to the current row in the grid

this worked for the original purpose; however, since heirarchial grids are created for each row in the parent grid

that has parts saved in the database then there is no way to bind their currently selected row properties to the viewmodel

The databinding was ditched and instead this route was taken which accounts for both types of grids*/

this.GridView.SelectionChanged += GridView_SelectionChanged;

}

void GridView_SelectionChanged(object sender, SelectionChangeEventArgs e)

{

var grid = sender as RadGridView;

var item = grid.SelectedItem;

this.vm.CurrentItem = item;

MessageBox.Show(item.GetType().ToString());

}

When my message box shows I always get a type of "PartsManufacturerViewModel". This would be correct in the parent grid because I am binding to my viewmodel's "ManufacturersAndPartsSearchViewModel.CurrentItem which is of type object. Since I am binding the grid to a collection of PartsManufacturerViewModels then this is expected. When I click on a child row I still get the same type but I should be getting PartViewModel, which is a property inside of PartsManufacturerViewModel.

The basic gist is this. PartsManufacturerViewModel holds data relevant to the manufacturer while it has a property called "ChildParts" which is a collection of PartViewModels (which hold data relevant to the part itself). It is this collection that I bind the ChildTableDefinitions to.

My desired outcome is to be able to set "this.vm.CurrentItem" to either a PartsManufacturerViewModel or a PartViewModel depending on the current row that is clicked once, either in the parent or the child grid.

Here is the rest of my code (ViewModels) if it helps make things clearer.

public class PartsManufacturerViewModel : Accu_Base_Lib.Bases.ModelViewModelBase<DAL.PartsManufacturer>

{

public string Id

{

get { return (string)GetValue(IdProperty); }

set { SetValue(IdProperty, value); }

}

// Using a DependencyProperty as the backing store for Id. This enables animation, styling, binding, etc...

public static readonly DependencyProperty IdProperty =

DependencyProperty.Register("Id", typeof(string), typeof(PartsManufacturerViewModel));

public string Name

{

get { return (string)GetValue(NameProperty); }

set { Debug.WriteLine("ViewModel Name Changed " + this.Name); SetValue(NameProperty, value); }

}

// Using a DependencyProperty as the backing store for Name. This enables animation, styling, binding, etc...

public static readonly DependencyProperty NameProperty =

DependencyProperty.Register("Name", typeof(string), typeof(PartsManufacturerViewModel));

private ObservableCollection<PartViewModel> _childParts;

public ObservableCollection<PartViewModel> ChildParts

{

get

{

if (this._childParts == null)

{

GetChildren();

}

return this._childParts;

}

set

{

this._childParts = value;

}

public PartsManufacturerViewModel(DAL.PartsManufacturer model)

{

base.Init(model);

//Fills this viewmodel based off the model supplied.

UpdateViewModelFromModel();

}

public PartsManufacturerViewModel()

{

base.Init();

this.Model.Id = Guid.NewGuid().ToString();

this.Model.Name = string.Empty;

UpdateViewModelFromModel();

}

public class PartViewModel : Accu_Base_Lib.Bases.ModelViewModelBase<DAL.Part>

{

public string Id

{

get { return (string)GetValue(IdProperty); }

set { SetValue(IdProperty, value); }

}

// Using a DependencyProperty as the backing store for Id. This enables animation, styling, binding, etc...

public static readonly DependencyProperty IdProperty =

DependencyProperty.Register("Id", typeof(string), typeof(PartViewModel));

public string ManufacturerId

{

get { return (string)GetValue(ManufacturerIdProperty); }

set { SetValue(ManufacturerIdProperty, value); }

}

// Using a DependencyProperty as the backing store for ManufacturerId.  This enables animation, styling, binding, etc...

public static readonly DependencyProperty ManufacturerIdProperty =

DependencyProperty.Register("ManufacturerId", typeof(string), typeof(PartViewModel));

public string Name

{

get { return (string)GetValue(NameProperty); }

set { SetValue(NameProperty, value); }

}

// Using a DependencyProperty as the backing store for Name. This enables animation, styling, binding, etc...

public static readonly DependencyProperty NameProperty =

DependencyProperty.Register("Name", typeof(string), typeof(PartViewModel));

public string ModelNo

{

get { return (string)GetValue(ModelNoProperty); }

set { SetValue(ModelNoProperty, value); }

}

// Using a DependencyProperty as the backing store for ModelNo. This enables animation, styling, binding, etc...

public static readonly DependencyProperty ModelNoProperty =

DependencyProperty.Register("ModelNo", typeof(string), typeof(PartViewModel));

public decimal Price

{

get { return (decimal)GetValue(PriceProperty); }

set {

SetValue(PriceProperty, value); }

}

// Using a DependencyProperty as the backing store for Price. This enables animation, styling, binding, etc...

public static readonly DependencyProperty PriceProperty =

DependencyProperty.Register("Price", typeof(decimal), typeof(PartViewModel));

public PartViewModel(DAL.Part model)

{

base.Init(model);

//Fills this viewmodel based off the model supplied.

UpdateViewModelFromModel();

}

public PartViewModel()

{

base.Init();

this.Model.Id = Guid.NewGuid().ToString();

UpdateViewModelFromModel();

}

GridView

answered on 09 Jun 2014