Questions on UI for WPF Forum

3 answers

275 views

Change GridView Column filter

Hi, I use the following code to overwrite the FilteringControl

public class ContainsFilteringControl: FilteringControl

{

public override void Prepare(GridViewColumn gridViewColumn)

{

base.Prepare(gridViewColumn);

var vm = DataContext as FilteringViewModel;

if (vm == null) return;

if (!vm.Filter1.IsActive)

{

vm.Filter1.Operator = FilterOperator.Contains;

}

if (!vm.Filter2.IsActive)

{

vm.Filter2.Operator = FilterOperator.Contains;

}

Then, in the code behind of the view,

public MyWindow(MyViewModel viewModel)

{

DataContext = viewModel;

this.radGrid.Columns[2].FilteringControl = new ContainsFilteringControl();

}

After recompile and run the application, the filter changes to Contains.

However, when the filter is opened first time, the text boxes below the filter dropdowns are not shown.

When the filter window is opended the second time, the text boxes will appear.

Anything I can do to fix this?

Thanks

GridView

answered on 27 Nov 2012

1 answer

121 views

Radtoolbar & editingcommands & applicationcommands

hi
i implement Radtoolbar with basic functions but only copy undo and cut commands are working . the others editingcommans and applicationcommand arn't working sush as EditingCommands.DecreaseFontSize or increase
could you give me an example to implement it.
thanks by advance

ToolBar

answered on 27 Nov 2012

4 answers

148 views

RadGridView using wrong locale for formatting

Hello,

I'm using internal build 2012.3.1017.40 and it seems the GridView is using the wrong locale (en-US instead of de-DE) when DataFormatString is applied to cells. Currency values are formatted as "$100.00" instead of "100,00 €". Is there a new configuration I have to set up or is it an issue with this build? I need to use the internal build because I'm using the WPF ReportViewer as well and there is that mean printing bug in the main release.

Kind regards
Markus

GridView

answered on 27 Nov 2012

1 answer

371 views

Cool ObservableCollection Sort Extension

I came across the need to be able to sort my ObservableCollections the other day and I found a nice code snippet demonstrating how to sort an ObservableCollection even if the collection type does not support IComparable. I added the ReverseCompare/Descending sort just in case. Anyhow thought it was a neat piece of code and hope it may help some others out there.

Enjoy!

    
            public static class CollectionSorter  
        
                {  
        
                    public static void Sort<T>(this ObservableCollection<T> collection, Comparison<T> comparison)  
        
                    {  
        
                        var comparer = new Comparer<T>(comparison);  
        
                        List<T> sorted = collection.OrderBy(x => x, comparer).ToList();  
        
                        for (int i = 0; i < sorted.Count(); i++)  
        
                            collection.Move(collection.IndexOf(sorted[i]), i);  
        
                    }  
        
                    public static void DescendingSort<T>(this ObservableCollection<T> collection, Comparison<T> comparison)  
        
                    {  
        
                        var comparer = new ReverseComparer<T>(comparison);  
        
                        List<T> sorted = collection.OrderBy(x => x, comparer).ToList();  
        
                        for (int i = 0; i < sorted.Count(); i++)  
        
                            collection.Move(collection.IndexOf(sorted[i]), i);  
        
                    }       
        
                }  
        
                internal class Comparer<T> : IComparer<T>  
        
                {  
        
                    private readonly Comparison<T> comparison;  
        
                    public Comparer(Comparison<T> comparison)  
        
                    {  
        
                        this.comparison = comparison;  
        
                    } 
        
                    #region IComparer<T> Members  
        
                    public int Compare(T x, T y)  
        
                    {  
        
                        return comparison.Invoke(x, y);  
        
                    } 
        
                    #endregion  
        
                }  
        
                internal class ReverseComparer<T> : IComparer<T>  
        
                {  
        
                    private readonly Comparison<T> comparison;  
        
                    public ReverseComparer(Comparison<T> comparison)  
        
                    {  
        
                        this.comparison = comparison;  
        
                    } 
        
                    #region IComparer<T> Members  
        
                    public int Compare(T x, T y)  
        
                    {  
        
                        return -comparison.Invoke(x, y);  
        
                    } 
        
                    #endregion  
        
                }

then you can use it on your ObservableCollections as such.

    
            private void Log(LogEntry log)  
        
                    {  
        
                        LoggedEvents.Add(log);  
        
                        LoggedEvents.DescendingSort((x, y) => x.TimeStampString.CompareTo(y.TimeStampString));  
        
                    }        
        
                    private ObservableCollection<LogEntry> entries = new ObservableCollection<LogEntry>();  
        
                    public ObservableCollection<LogEntry> LoggedEvents  
        
                    {  
        
                        get 
        
                        {                  
        
                            return entries;  
        
                        }  
        
                        set 
        
                        {  
        
                            entries = value;  
        
                            RaisePropertyChanged(LoggedProperty);  
        
                        }  
        
                    }

General Discussions

answered on 27 Nov 2012

1 answer

196 views

Disable row edit

How to disable row edit mode? Leave only insert and delete.

GridView

answered on 27 Nov 2012

1 answer

209 views

AutoComplete DropDownList position

Hi,

If the vertical scrollbar is used to scroll the list of dropdown items and then whilst the drop down is still displayed the applications main window is moved, the dropdown panel remains at it's former position and does not follow the location of the autocomplete edit box.

Is there a way to control this so that it either moves with the form or closes before the form is moved in the same way that a combobox would?

Attached screenshot illustrates the problem when using the WPF demo controls application.

Rgds
Graeme

AutoCompleteBox

answered on 27 Nov 2012

0 answers

52 views

Need information about adding references into test studio

HI ,

i am using trail version of Test studio and i want to display the value of a variable. To display the value in C# we will use "MessageBox.Show("Value of the variable")". when i use this method i am getting one error message as namespace is not added as a hedder files, but i am not able to see in the list namesapces because i have not added repective *.dll files. can any one please let me know about adding of *.dll files.

Thanks
satyanarayana

General Discussions

asked on 27 Nov 2012

2 answers

206 views

PropertyGrid values' font size will not change

Hello,

We are using version 2012.2.607.40 of your WPF controls. Our application supports several font sizes so we updated many Telerik styles and templates for the PropertyGrid to use the dynamic font size. Our changes worked for the property names (they all show the correct size now), but some of the values do not. We do not see where the value templates are so that we can change them.

How can we get to the right templates for the PropertyGrid values so we can change them to use our dynamic size -for all the value types used in the property grid? Or, is there another way to accomplish this? I've attached a picture so you can visualize the problem. You can see some of the values have the larger size but others do not.

Thanks!
-Mark

PropertyGrid

answered on 27 Nov 2012

2 answers

122 views

Docking Empty when runing without debug

When I run my program with debug then everything works normal, but whenever I run without debug or from the exe it dosn't display anything. Actually it tells me it is empty when I have already added the controls in xaml, they are static not dynamic at all. It still says all my controls exist and I can use them but they not displayed at all. This used to work but I made not changes that would break it. I do however toggle it's visibility but even when I have it always visible it dosn't work. It's like it is not seeing anything under the RadDocking tag.

<telerik:RadDocking Background="#edf3fa" x:Name="dmManager" Grid.Row="1" Margin="0,0,0,33" Padding="0,0,0,0">

<telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer>

<telerik:RadPaneGroup>

(Assume controls)

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer InitialPosition="DockedLeft">

<telerik:RadPaneGroup>

(Assume controls)

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

<telerik:RadSplitContainer InitialPosition="DockedRight">

<telerik:RadPaneGroup>

(Assume controls)

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

<telerik:RadSplitContainer x:Name="Bottom" InitialPosition="DockedBottom">

<telerik:RadPaneGroup>

(Assume controls)

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

Docking

answered on 26 Nov 2012

1 answer

224 views

Binding ObservableCollection to ItemSource

What is the proper way of coding standard to bind the ObservableCollection to ItemSource?
The case i'm facing is i have multiple lineseries, therefore, i created an ObservableCollection<IEnumberable><T>> that contains array of ObservableCollection<T>. i make the ObservableCollection<IEnumberable><T>> binded to the itemsource of lineSeries with INotifyPropertyChanged.

Code Snippet:
XAML:

<chartView:LineSeries x:Name="Item1" ItemsSource="{Binding Item[0]}" ValueBinding="Value" CategoryBinding="Counter" />

<chartView:LineSeries x:Name="Item2" ItemsSource="{Binding Item[1]}" ValueBinding="Value" CategoryBinding="Counter" />

<chartView:LineSeries x:Name="Item3" ItemsSource="{Binding Item[2]}" ValueBinding="Value" CategoryBinding="Counter" />

<chartView:LineSeries x:Name="Item4" ItemsSource="{Binding Item[3]}" ValueBinding="Value" CategoryBinding="Counter" />

<chartView:LineSeries x:Name="Item5" ItemsSource="{Binding Item[4]}" ValueBinding="Value" CategoryBinding="Counter" />

C#

public ObservableCollection<IEnumerable<GraphPlot>> Item

{

get { return m_item; }

set

{

m_item = value;

OnPropertyChanged("Item");

}

i have an error "observablecollection collection was modified enumeration operation may not execute" using the code above.
is this the right way to bind it to multiple itemsource with only 1 Properties at real-time? any recommendation?

ChartView

answered on 26 Nov 2012