Questions on UI for WPF Forum

0 answers

99 views

Enable interactivity in Telerik 3D Charts

Hi,

I have a 3D Pyramid chart from Telerik RadControls. I would like to know how we can enable interactivity for this chart (like rotating the pyramid to view it from different angles). The interactivity has been enabled in Telerik Demos, but i wasnt able to understand the code behind. Also, I would like to know whether there is a way we can enable the interactivity through XAML or through some properties of the Chart. Could anyone help me out with this pls? Thanx.

Chart

asked on 18 Jan 2011

2 answers

61 views

[Solved] How to apply RadContextMenu on Stacked Area Chart 2D.

Hi,
I have to develop a Stacked area chart which can contain atmost of 15 areas, and on click of every stacked area, I need to open different context menu.

I found an example for ContextMenu for Bar Chart, but when I changed the BarSeriesDefinition to StackedAreaSeriesDefinition and Style TargetType from telerik:Bar to telerik:StackedArea, it does not worked.

So, Could you please give me an example explaining how to implement ContextMenu on StackedArea.

Chart

answered on 18 Jan 2011

1 answer

83 views

ObservableCollection of ObservableCollections doesn't update live data

Hi,

I've created a ObservableCollection of ObservableCollections for data binding, but when i add data to the inner collections, chart isn't updated. If i add a timer that null's and re-adds the ItemsSource it works, but that defeats the purpose of ObservableCollection. Any clues?

Michael

Chart

answered on 18 Jan 2011

1 answer

123 views

custom insert new row

Hi,

Assume you have a class (say ClassA). ClassA inherits from another class (say ClassB) which contains property of DataRow (_data).

Now when the itemssource of RadGridView binds to ClassA and the user creates a new row, RadGridview will only create a new class of ClassA but it does not create the DataRow (_data) propery. How can I make the _data property is generated while creating a new row? thanks

public class ClassB: INotifyPropertyChanged

{

#region Data

DataRow _data;

[Browsable(false), Bindable(false)]

public DataRow DataRow

{

get { return _data; }

set { _data = value; OnPropertyChanged("DataRow"); }

}

#endregion // Data

#region Constructors

protected ClassB(DataRow data)

: this()

{

_data = data;

}

protected ClassB()

{

}

#endregion // Constructors

public object GetField(string name)

{

object value = null;

try

{

if (_data.Table.Columns.Contains(name))

{

value = _data[name];

if (value is DBNull)

value = null;

}

else

value = null;

}

catch { }

return value;

}

public void SetField(string name, object value)

{

try

{

if (_data.Table.Columns.Contains(name))

{

_data[name] = (value == null) ? DBNull.Value : value;

}

catch {}

}

#region INotifyPropertyChanged Members

public event PropertyChangedEventHandler PropertyChanged;

protected virtual void OnPropertyChanged(string propertyName)

{

if (this.PropertyChanged != null)

this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

#endregion // INotifyPropertyChanged Members

}

GridView

answered on 18 Jan 2011

21 answers

461 views

Exporting to Excel - get "The file your are trying to open is a differant format"

Hi..
I'm exporting to excel... it exports fine...
But when I open the file I get an MS Error

THE FILE YOU ARE TRYING TO OPEN TEST.XLS IS IN A DIFFERANT FORMAT THAN SPECIFIED BY THE FILE EXTENSION....

Any ideas? How I can I get rid of this msg?
thanks again

GridView

answered on 18 Jan 2011

1 answer

78 views

How to reuse Teleric Style

We are using telerik control with theme manager including GridView and we would like to know how to reuse telerik style.

I.e, we want to style standard window Border with GridViewHeaderRowBorder style, without extracting all of the styles.

Is it possible to retrive style using code?
I used Snoope and foun the element name I want to reuse; PART_GridViewHeaderRowBorder.

Thanks Tom

GridView

answered on 18 Jan 2011

1 answer

71 views

Charts:

I'm using WPF controls version 2010.3.1110.40 for .NET 4 with Visual Studio 2010.

Program Definition: I have 3 or more series to plot and which one to plot is depends on what is checked. In my real program, all my series have different units, so I put them all on different Y-axes (AdditionalYAxes).

Root of all evil: I was not able to get white and gray stripes on the chart area without having one of the series associated with the default Y-axis...

=====
Solution 1: Keep all series where they are and try to find a way to get the stripes to show up. I updated to 2010.3.1110.40 in the process of trying to get this working. I still can't get the stripe... I also want to stay in the lates version.
Problem 1: Updating from an earlier version of WPF controls, I picked up an undefined default Y-axis.
Attached: ChartIssue1.jpg
=====
Solution 2: Using 2010.3.1110.40, I select one of the series depending on which one(s) are picked, and associate it with the default Y-axis. White and gray stripes are showing up now.
Problem 2: The axis TITLE for the default Y-axis is not changing!!! If commented code below is uncommented, X-axis title changes as the series selected changes, but not the Y-axis...

AxisY temp = new AxisY();

temp = radChart1.DefaultView.ChartArea.AdditionalYAxes[0];

radChart1.DefaultView.ChartArea.AdditionalYAxes.RemoveAt(0);

radChart1.DefaultView.ChartArea.AxisY = temp;

//radChart1.DefaultView.ChartArea.AxisX.Title = temp.Title;

Attached: ChartIssue2.jpg.
=====

I have solutions as well. I can send them if requested.
I would like to get stripes to work. If not, I don't want the default Y-axis...

Thanks for your time,

Kadem

Chart

answered on 18 Jan 2011

4 answers

94 views

[Solved] big space gap between container and content

Hi,
the docking control has a big gap between the container and content.. is there a way to remove the gap? or is this an aware bugs?
thanks

Docking

answered on 17 Jan 2011

4 answers

146 views

GridViewDataControl_ColumnDisplayIndexOutOfRange

When I open an PrintPreviewDialog all works well, but...

...when I change the column-order by dragging a column to an other place, opening of the Printpreview gives an:
System.ArgumentOutOfRangeException: GridViewDataControl_ColumnDisplayIndexOutOfRange.

The same happens in your "RadControls for WPF-Demo": GridView/WPF/Printing:
Change the column-order and click "printpreview".

GridView

answered on 17 Jan 2011

1 answer

157 views

Drag and drop NullReferenceException on the first drag and drop

Good evening,
I am implementing a drag and drop between two grids, which works fine and drags and drops great.
however, when I do the first drag and drop I get this error:
System.NullReferenceException occurred
  Message=Object reference not set to an instance of an object.
  Source=Telerik.Windows.Controls
  StackTrace:
   at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.StartDragging() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP1\Sources\Development\Core\Controls\DragDrop\RadDragAndDropManager.cs:line 1083
  InnerException:

The error occurs once and when I continue running the code the next drag and drops works great.
I am doing the drag and drops from a dialog window invoked from within the software.
I am using Q2 SP1 release.
Please help,
Eylon

DragAndDrop

answered on 17 Jan 2011