Questions on UI for WPF Forum

1 answer

217 views

Hi Team

I have a radtabcontrol.Items source bind to some collection in ViewModel. Each tab item has its own view and VM. I am adding multiple tabitems to the control at run time. Steps are :
1. create the instance of the view model of the tab item
2. Add it to the collection in the VM.

After this , the tabcontrol shows the desired tabs. The issue is that the view of only last tab item is initialised , other tab items views remain uninitialised. I need to select each tab item one by one...only then the view is getting initialised.

I need to read some control info from each tab item view model...for that i need each view to be initialised without manually clicking them one by one.

TabControl

answered on 03 Mar 2014

1 answer

98 views

how to Increase and decrese decimal places seperatly

Hi,

How to increase and decrease the decimal places separately in Numeric UpDown Control ?
Is there any possibility to make it in telerik wpf ?

Thanks,

Mukesh

NumericUpDown

answered on 03 Mar 2014

1 answer

67 views

Your WPF/Silverlight online documentation site sucks

It is always a pain to use your wpf and silverlight online documentation. Wouldn't it be possible to separate the left and the right part, to scroll each other independently?

For example, when I use http://www.telerik.com/help/wpf/n_telerik_windows_documents_formatproviders_pdf.html and click on classes or properties I loose the context of the namespace, because I always have to scroll all the way down to get it back into my view.

I wonder why nobody complains about this? How do others learn about the features of new controls? Or do I miss something?

General Discussions

answered on 03 Mar 2014

3 answers

149 views

Trackball display issue

Hi,
I wanted my trackerball data display to be next to the mouse cursor rather than displaying at top of the tracker line. I did this by using trackBall.Margin = new Thickness(left, top, 0, 0); on mouse move of the chart. This works fine until the line starts to move towards the Y axis on either side.. Then the margin is not taken into account and it looks as if it leaves the space according to the width of the tracker data displayed. So if I have displayed long names in tracker template - then the width is more when it starts to ignore the margin from bit far off from Y axis. Can someone please help me to resolve this issue.

Thanks
Avneesh

Chart

answered on 03 Mar 2014

3 answers

137 views

Create Chart with Code

Hi telerik,

I have to create chart with code not xaml having LogarithmicAxis and LinearAxis, but can't display series successfully
and don't know what is my mistake, though I refered your sample code in this forum and your doc as well.
My code snippet is as follows;

private RadCartesianChart GetChart()

{

RadCartesianChart cartChart = new RadCartesianChart();

cartChart.HorizontalAxis = new LinearAxis() { Maximum = 50, Minimum = 17, MajorStep = 3 };

cartChart.VerticalAxis = new LogarithmicAxis() { LogarithmBase = 10, Minimum = 1000, Maximum = 1000000 };

LineSeries lineSeries = new LineSeries() { ShowLabels = true };

// lineSeries.CategoryBinding = new PropertyNameDataPointBinding() { PropertyName = "Age" };

lineSeries.CategoryBinding = new GenericDataPointBinding<CordXy, double>() { ValueSelector = value => value.Age };

lineSeries.ValueBinding = new GenericDataPointBinding<CordXy, double>() { ValueSelector = cord => cord.Num };

// lineSeries.ValueBinding = new PropertyNameDataPointBinding() { PropertyName = "Num" };

lineSeries.ItemsSource = CordXy.GetFollicleList();

cartChart.Series.Add(lineSeries);

DoubleCollection aray = new DoubleCollection(new double[] {1,1});

cartChart.Annotations.Add(

new CartesianCustomLineAnnotation

{

HorizontalFrom = 35,

HorizontalTo = 35,

VerticalFrom = 0,

VerticalTo = 1000000,

Stroke = new SolidColorBrush(Colors.Blue),

StrokeThickness = 2,

DashArray = aray

});

return cartChart;

}

public class CordXy

{

public double Age { get; set; }

public double Num { get; set; }

public static ObservableCollection<CordXy> GetFollicleList()

{

var result = new ObservableCollection<CordXy>();

for (int i = 0; i < 33; i++)

{

var add = new CordXy();

add.Age = i + 18;

add.Num = Math.Pow(10, (5.717 - 0.00019 * Math.Pow(add.Age, 2.452)));

result.Add(add);

}

return result;

}

As you see, x-axis is linear which shows age of person and y-axis shows calculated value as logarithmic.
I think I did correct as you told with your sample and doc, but no luck.
Pls see my attached image and advise me what I made a mistake.

Thank you in advance.

RGDS
HK.Lee

ChartView

answered on 03 Mar 2014

1 answer

207 views

Setting Plot Band Annotations from code behind

Is there a way to set plot band annotations dynamically from C# code behind instead of from XAML?

The examples demonstrate the XAML approach, for instance,
<telerik:CartesianPlotBandAnnotation Axis="{Binding ElementName=chart3HAxis}" To="3/2/2014" From="3/4/2014" />

but how to accomplish the sample thing using code behind, dynamically.

ChartView

answered on 03 Mar 2014

13 answers

994 views

Error "cannot locate resource 'themes/genericwindows8touch'".

Yesterday I created a new WPF app using the Telerik WPF C# project template. I chose the Windows 8 theme from the control panel, and all seems fine. My app even runs and looks like Windows 8, but when I try and instantiate a UserControl in another project, that contains a RagGridView, on my InitializeComponent call, I get a MissingManifestResourceException. This explains that:

"Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "Telerik.Windows.Controls.GridView.g.resources" was correctly embedded or linked into assembly "Telerik.Windows.Controls.GridView" at compile time, or that all the satellite assemblies required are loadable and fully signed."

I also get a warning in my XAML editor, "cannot locate resource 'themes/genericwindows8touch'", and the all the XAML is underlined with blue, squiggly lines.

I never had this problem when I created a Telerik C# WPF project without choosing a theme. What is wrong?

General Discussions

answered on 02 Mar 2014

1 answer

136 views

Binding data of a column to an indexer element

If I use the following binding in a GridViewDataColumn

Column.Binding = new System.Windows.Data.Binding("rowdata[INDEX]");

I can see the data in the table just fine, but when i try to filter/group it doesn't work (when i click on the filter button all i see is [null]).

I can't create the columns in the XAML file due to creating the grid dynamically in the code behind.

The gridview.dll version I use is 2011.3.1220.40, i'd rather not update to a newer version if possible.

Thanks in advance!

GridView