Questions on UI for WPF Forum

11 answers

388 views

Invalid property or field - 'TimeStamp' for type: Double

I am using RadControls for WPF build 2010.1.416.35. I have a radchart and define the SeriesMappings in XAML and when it tries to render the XAML below in VS2008 or Blend 3 I get the error "Invalid property or field - 'TimeStamp' for type: Double" in design view.

    
            <telerik:RadChart x:Name="hydroChart" Margin="8,34,0,0" ItemsSource="{Binding DataPoints, Mode=TwoWay}" HorizontalAlignment="Left" VerticalAlignment="Top" 
        
                                      telerik:Theming.Theme="Summer">  
        
                        <telerik:PointMark Size="1">  
        
                        </telerik:PointMark> 
        
                        <telerik:RadChart.SamplingSettings> 
        
                            <telerik:SamplingSettings SamplingFunction="KeepExtremes" SamplingThreshold="50"/>  
        
                        </telerik:RadChart.SamplingSettings> 
        
                        <telerik:RadChart.AnimationSettings> 
        
                            <telerikChart:AnimationSettings ItemAnimationDuration="00:00:00" ItemDelay="00:00:00" DefaultSeriesDelay="00:00:00"/>  
        
                        </telerik:RadChart.AnimationSettings> 
        
                        <telerik:RadChart.DefaultView> 
        
                            <telerik:ChartDefaultView>                    
        
                                <telerik:ChartDefaultView.ChartArea> 
        
                                    <telerik:ChartArea NoDataString="No Data....." LegendName="chartLegend">  
        
                                        <telerikChart:ChartArea.AdditionalYAxes> 
        
                                            <telerikChart:AxisY AutoRange="False" AxisName="TEMPER" DefaultLabelFormat="#VAL F" MaxValue="110" MinValue="50" Step="20" Title="Temperature in F"/>  
        
                                        </telerikChart:ChartArea.AdditionalYAxes> 
        
                                        <telerikChart:ChartArea.AxisY> 
        
                                            <telerikChart:AxisY AutoRange="False" MinValue="0" MaxValue="25000" Step="1000" Title="PSI" AxisName="PSI"/>  
        
                                        </telerikChart:ChartArea.AxisY> 
        
                                        <telerik:ChartArea.AxisX> 
        
                                            <telerik:AxisX LabelRotationAngle="90" LabelStep="2" Title="Time" IsDateTime="True" DefaultLabelFormat="#VAL{hh:mm:ss}"/>  
        
                                        </telerik:ChartArea.AxisX>                              
        
                                    </telerik:ChartArea>                                
        
                                </telerik:ChartDefaultView.ChartArea>                      
        
                                <telerik:ChartDefaultView.ChartLegend> 
        
                                    <telerik:ChartLegend x:Name="chartLegend" Header="In-Process Hydro" UseAutoGeneratedItems="True" ></telerik:ChartLegend> 
        
                                </telerik:ChartDefaultView.ChartLegend> 
        
                            </telerik:ChartDefaultView> 
        
                        </telerik:RadChart.DefaultView> 
        
                        <telerik:RadChart.SeriesMappings> 
        
                            <telerik:SeriesMappingCollection> 
        
                                <telerik:SeriesMapping LegendLabel="Inlet PSI">   
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="PSI" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}">  
        
                                        </telerik:LineSeriesDefinition> 
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="InletPressure"  /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Outlet PSI">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="PSI" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="OutletPressure" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping>      
        
                                <telerik:SeriesMapping LegendLabel="Ambient Temp">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewAmbientTemp" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Fluid Temp In">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewFluidTempIn" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Fluid Temp Out">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewFluidTempOut" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                            </telerik:SeriesMappingCollection> 
        
                        </telerik:RadChart.SeriesMappings> 
        
                        <telerik:RadChart.DefaultSeriesDefinition> 
        
                            <telerik:LineSeriesDefinition LegendDisplayMode="SeriesLabel" ShowItemLabels="False" ShowItemToolTips="True"/>  
        
                        </telerik:RadChart.DefaultSeriesDefinition> 
        
                    </telerik:RadChart>

But when I only have 1 SeriesMapping everything works as expected. Is this a known bug, or am I missing something?

Everything compiles fine, and when I run the program it renders properly. Any help is appreciated.

Thanks,
Ryan

Chart

answered on 07 Sep 2010

3 answers

182 views

Autofill and Display

Hi,

I’m calling an asynchronous WCF service and adding the items into the RadComboBox. I would like to call the same service as I am typing in the RadComboBox (text passed as a parameter to the service) and auto fill and display the results. Please advise.

Thanks
RJ

ComboBox

answered on 07 Sep 2010

3 answers

240 views

RadGridView.ValidatesOnDataErrors

Hello

In this point the property ValidatesOnDataErrors available in SL only

When this will be available for WPF?

Best regards

Ehud

GridView

answered on 07 Sep 2010

1 answer

250 views

Editing percent value

Hello,

I have a little problem with editing value when ValueFormat is set to Percent. When control has no focus, the value I see is "250 %". When I focus the control to edit value, the value of control change to "2.5". Can the edited value be "250 %" instead of "2.5" ?

The control is set something like that:

<telerik:RadNumericUpDown Value="{Binding Rate, Mode=TwoWay}" ValueFormat="Percentage" LargeChange="0.2" SmallChange="0.1">
<telerik:RadNumericUpDown.NumberFormatInfo>
<sysGlob:NumberFormatInfo PercentDecimalDigits="0"/>
</telerik:RadNumericUpDown.NumberFormatInfo>
</telerik:RadNumericUpDown>

Thanks in advance.

David

NumericUpDown

answered on 07 Sep 2010

1 answer

134 views

TreeViewItem Moves when selected

Hi,

This is probably some flag I am missing. But the behavior I see is:
When I select a child node in my tree view, the contents on the treeview shift to the left so that the left edge of the selected child item is a few pixels from the treeview edge. This causes the treeview to be partially obscured (till the selector arrow thing of the parent item has been shifted out of view.)

Oh and it stops doing that if I set my root node to have a set width that is less than the width of my treeview. But I dont want to do it since I do not know how big the nodes will be.

Any idea what I am doing wrong?

thanks,
JK

TreeView

answered on 07 Sep 2010

4 answers

177 views

Inserting images in runtime?

Hello I have a problem with RadCarousel, at runtime you can not add items to the carousel OpenDialog because when I connect my ItemSource with images not see it, I realized that if the images are not shown in project resources can not be seen ...
What I have to do to see the images that are not in the resources folder?

DataTemplate?

C # code?

thank you very much, sorry for my english

public partial class Window1 : Window

{

List<Image> lista;

private const String Extension = "(*.jpg)|*.jpg|(*.png)|*.png";

public Window1()

{

InitializeComponent();

lista = new List<Image>();

Microsoft.Win32.OpenFileDialog dialog ;

}

private void button1_Click(object sender, RoutedEventArgs e)

{

lista.Clear();

dialog = new Microsoft.Win32.OpenFileDialog { RestoreDirectory = true, Filter = Extension, Multiselect = true };

if (dialog.ShowDialog() == true)

{

foreach (string Name in dialog.FileNames)

{

Image Im = new Image()

Im.Source = new BitmapImage(new Uri(fName, UriKind.Relative));

lista.Add(Im);

}

this.radCarousel1.ItemsSource = lista;

}

Carousel

answered on 06 Sep 2010

2 answers

133 views

Finding all view models of group

I am using the MVVM design pattern and am attempting to add a button to perform an action on all items in a group. I have successfully added the button to the group header template and am attempting to find the view models of the group's rows with the following code:

private void validateGroupButton_Click(object sender, RoutedEventArgs e)

{

var sourceUIElement = (UIElement)sender;

var group = sourceUIElement.ParentOfType<GridViewGroupRow>();

var collectionViewGroup = (CollectionViewGroup)group.DataContext;

var grid = sourceUIElement.ParentOfType<RadGridView>();

var vm = (ManualDealsViewModel)grid.DataContext;

   var toValidate = collectionViewGroup.Items.Cast<ManualDealViewModel>().ToList();
   (.... perform action on toValidate enumeration ...)
   }

This basically works, however the toValidate enumeration only contains the rows that are currently visible in the group.

Is there a way to retrieve all the view models that match the group, even if they are not presently visible?

GridView

answered on 06 Sep 2010

1 answer

144 views

How to display column only when data available?

Hi guys.

What would be the best way in xaml to display a RadGridViewColumn only when data is available
e.g.
I have to column in my Radgridview. These columns are binding against an IEnumerable List of Materials (Type: MATERIAL)

If one column doesn not contain any data in all underlying rows, i would like not to display this column. (i only want to display columns with cell values)
How can this be done?
thanks for your help

<DataTemplate>

<tcg:RadGridView x:Name="RadGridView1" CanUserFreezeColumns="False" AutoGenerateColumns="False" ItemsSource="{Binding MBEP}" ShowGroupPanel="False" IsReadOnly="True">

<tcg:RadGridView.Columns>

<tcg:GridViewDataColumn DataMemberBinding="{Binding MATERIAL.Txt1}" Header="Material Descr."/>

<tcg:GridViewDataColumn DataMemberBinding="{Binding MATERIAL.MatNr}" Header="Material No" Width="{Binding MATA.MatNr.Length}"/>

</tcg:RadGridView.Columns>

</tcg:RadGridView>

</DataTemplate>

GridView

answered on 06 Sep 2010

2 answers

189 views

Update Individual Cell

I have a RadGridView that is populated dynamically by a data table. Certain columns are calculated from other columns but the calculations are done by my own calculation engine. When one of the underlying columns is changed I pick up the event and check whether it is part of a calculation. If it is then I do the calculation and need to update the relevant cell/s.

My problem comes in when wanting to update the cell/s. Right now I am changing the data table data and then binding the data table back to the grid and calling refresh function.

DataTable source = ( DataTable ) this.gridLogsheetGrid.ItemsSource;

//Change cell data

this.gridLogsheetGrid.ItemsSource = source;

this.gridLogsheetGrid.Items.Refresh ( );

This works, however it refreshes the entire grid and is therefore expensive and the grid disappears for a second or two.

I have read the thread on applying using the INotifyPropertyChanged event but how will I use this on an individual column on a data table?

GridView

answered on 06 Sep 2010

3 answers

136 views

Expose RadTreeView.SelectedContainer property

Hi Team,

How can i expose RadTreeView.SelectedContainer property, which will return my own custom type instead of RadTreeViewItem?

code:

public RadTreeViewItem SelectedContainer

{

get { return (RadTreeViewItem)TreeView.GetValue(RadTreeView.SelectedContainerProperty); }

set { TreeView.SetValue(RadTreeView.SelectedContainerProperty, value); }

}

instead of the above code i want to write something like this:

public TngTreeViewItem SelectedContainer

{

get { return (TngTreeViewItem )TreeView.GetValue(RadTreeView.SelectedContainerProperty); }

set { TreeView.SetValue(RadTreeView.SelectedContainerProperty, value); }

}

--------------------------------------------------------------------------------------------------------------------------------------------------------------------
TngTreeViewItem.cs

[

ContentProperty("Items")]

public class TngTreeViewItem : FrameworkContentElement

{

protected RadTreeViewItem _treeViewItem = new RadTreeViewItem();

#region

Constructors

static TngTreeViewItem()

{

DefaultStyleKeyProperty.OverrideMetadata(

typeof(TngTreeViewItem), new FrameworkPropertyMetadata(typeof(TngTreeViewItem)));

}