Questions on UI for WPF Forum

5 answers

547 views

What is the best way to completely turn animation off? I tried setting all of the properties to TimeSpan of zero, as well as setting AnimationSettings to null. My window has 23 charts on the screen when it loads, each with a bar and line series. I still see an odd flicker when the window loads. It looks like it briefly displays the bar and line pieces in various places, then it positions and sizes everything (after that it looks fine...this happens in about a second). Maybe the animation is still there, but it is trying to happen very fast.

Chart

answered on 03 Dec 2008

1 answer

117 views

Animation Errors in DataGrid

Hi,

I am receiving (quite frequently) the following in my Project Output Screen when using the DataGrid for WPF

    
            System.Windows.Media.Animation Warning: 6 : Unable to perform action because the specified Storyboard was never applied to this object for interactive control.; Action='Stop'; Storyboard='System.Windows.Media.Animation.Storyboard'; Storyboard.HashCode='14445493'; Storyboard.Type='System.Windows.Media.Animation.Storyboard'; TargetElement='Telerik.Windows.Controls.GridView.GridViewExpandableRow'; TargetElement.HashCode='14788679'; TargetElement.Type='Telerik.Windows.Controls.GridView.GridViewExpandableRow'

and

    
            System.Windows.Media.Animation Warning: 6 : Unable to perform action because the specified Storyboard was never applied to this object for interactive control.; Action='Stop'; Storyboard='System.Windows.Media.Animation.Storyboard'; Storyboard.HashCode='14445493'; Storyboard.Type='System.Windows.Media.Animation.Storyboard'; TargetElement='Telerik.Windows.Controls.GridView.GridViewRow'; TargetElement.HashCode='1651401'; TargetElement.Type='Telerik.Windows.Controls.GridView.GridViewRow'

Is there a way to resolve this. I would really prefer that it didn't happen.

Cheers

Justin

GridView

answered on 02 Dec 2008

1 answer

146 views

Collapsing all group rows.

Hi All!

How I can collapsing all groupHeaders rows by programming grouping?

Source code of grouping:

    
                        dataGridView.GroupDescriptions.Clear();  
        
                        Telerik.Windows.Data.RadGroupDescription desc = new Telerik.Windows.Data.RadGroupDescription("LogicCall");  
        
                        Telerik.Windows.Data.SumFunction funcCallDuration = new Telerik.Windows.Data.SumFunction("CallDuration", "CallDuration", "Duration:");  
        
                        desc.AggregateFunctions.Add(funcCallDuration);  
        
                        dataGridView.GroupDescriptions.Add(desc);

PS. May I collapsing all groupHeader when user drag'n'drop fields to the grouping panel?

GridView

answered on 01 Dec 2008

1 answer

190 views

My own AggregateFunction

Hello!

I have a table with time of call in seconds.
I grouping my table and add a SumFunction.
All works great!

But I need display result of SumFunction like this: HH:MM:SS where HH - hours, MM - minutes and SS - seconds.

Can you tell me how to do it?

I can create inheritance class from SumFunction like this:

    
            public class mF : Telerik.Windows.Data.SumFunction  
        
                {  
        
                    public mF()  
        
                    {  
        
                    }  
        
                    public mF(string propertyName, string calculationField, string caption)  
        
                    {  
        
                        base.Name = propertyName;  
        
                        base.SourceField = calculationField;  
        
                        base.Caption = caption;  
        
                    }  
        
                    private String GetTime(Decimal totalSeconds)  
        
                    {  
        
                        Int32 hours = (Int32)Math.Floor((double)totalSeconds / (double)3600);  
        
                        Int32 minutes = (Int32)Math.Floor((double)(totalSeconds - (hours * 3600)) / (double)60);  
        
                        Int32 seconds = (Int32)totalSeconds - (hours * 3600) - (minutes * 60);  
        
                        return hours.ToString() + ":" + minutes.ToString() + ":" + seconds.ToString();  
        
                    }  
        
                    public override Telerik.Windows.Data.AggregateResult Calculate(Telerik.Windows.Data.GroupRecord targetGroup)  
        
                    {  
        
                        Telerik.Windows.Data.AggregateResult result = base.Calculate(targetGroup);  
        
                        result.Value = GetTime(Convert.ToDecimal(result.Value, System.Globalization.CultureInfo.CurrentCulture));  
        
                        return result;  
        
                    }  
        
                }

But this class properly work only if I have 1 grouping.
If I add another one grouping i have exception (what it was necessary to expect, because format HH:MM:SS SumFunction cant convert to Decimal).

Please, help.

GridView

answered on 01 Dec 2008

1 answer

106 views

Error while building Examples Solution

Hi,

The Visual Studio C# Examples Solution is not buildable.
The first error is in CarDashboard.Example.xaml.cs (Line #91):
- no overload for method 'Begin' takes '0' arguments

The C# Samples application crashes also after a few seconds.

My Environment:
- CLR3.5
- VS2008SP1
- Silverlight 2.0
- SQL Server 2005
- Telerik Build 2008.3.1105.35

Btw. The online WPF (Silvelright) demo does crash while switching from one sample to another.

Cheers,
Jani

General Discussions

answered on 01 Dec 2008

3 answers

192 views

Theme mod

Is there a way I can modify the colors on the simple theme?

(using the grid) When an item is highlighted, I want the text color to be white instead of black. Thanks

General Discussions

answered on 26 Nov 2008

4 answers

93 views

No preview for RadGridView in Blend

Hi there,

We are trying to incorporate RadGridView (RadControls for WPF Q2 2008) into our solution with Blend.

However we are unable to preview the Grid and that's odd, because it does work perfectly fine when copy&pasting the XAML code into any other solution that we have tested.

We are working on a large WPF application using .NET Framework 3.5 and yes, we have added all references to Telerik dlls.

Any clues as to what is preventing the preview of of the RadGrid View from within Blend?

Thank you all.

Rafael Minuesa

GridView

answered on 26 Nov 2008

8 answers

203 views

RadControls DEMO for WPF crashes

I installed it to test to see if it's good for me, but it keeps crashing every couple of seconds, whenever I click anything in the DEMO window.
My OS version is Vista 64-bit, I have installed VS 2008 and .Net framework 3.5 SP1.
Thanks.

Description:
Stopped working

Problem signature:
Problem Event Name:   CLR20r3
Problem Signature 01:   telerik.windows.examples.exe
Problem Signature 02:   1.0.1.0
Problem Signature 03:   49142f0e
Problem Signature 04:   System.Data
Problem Signature 05:   2.0.0.0
Problem Signature 06:   4889ece0
Problem Signature 07:   2742
Problem Signature 08:   29
Problem Signature 09:   System.Data.SqlClient.Sql
OS Version:   6.0.6000.2.0.0.256.1
Locale ID:   5146

General Discussions

answered on 26 Nov 2008

1 answer

142 views

Drag/Drop constraints failing

I am using the wpf treegrid and want to be able to drag only certain items into only certain drop targets within the tree.

I noticed all of the querycontinue and other Wpf drag drop events do not fire at all so the only option I have to choose if a target is valid or not is what the documentation references: the IsDropAllowed property on the RadTreeItem itself.

the problem with this is all it does is suppress the preview from actually moving the item in the tree. I need to be able to change the drag icon to some sort of indicator saying the target is invalid. Just like WPF allows with its DragEventArgs.Effects = DragDropEffects.None

any help is very much appreciated. It seems rediculous to recurse through the entire tree on every DragStarted eventHandler and set the isDropAllowed to true or false for each node. But even if that is the only acceptable method for some strange reason, it should at least work and change the cursor to an (X)

TreeView

answered on 25 Nov 2008

2 answers

191 views

Removing mouse over effect from expanded content area

Hi,

I was wondering if it is possible to remove the blue mouse-over effect that appears on the content area of a RadPanelBarItem. I can override the colours for this effect on the header of this control, but can't find a way to remove or disable it on the content area. I am currently using the 2008 Q2 SP1 release of RadControls for WPF.

Thanks in advance,

Craig.

PanelBar

answered on 24 Nov 2008