Hi,

Overview:-
We are using RadMaskedNumericInput control embedded in a RadGridView Cell for allowing user to edit the existing decimal values. Also, the Foreground property of the RadMaskedNumericInput control is bound to a decimal value and a converter (named ValueToColorConvertor) is applied which turns the foreground red for negative numbers and keep it black for non-negative number.
Problem:-
Now the problem that on refreshing the data source of the GridView (in whoes cell RadMaskedNumericInput control is embedded) RadMask control's foreground behave's awkwardly and for few of the cells sometime a positive number is shown red and sometimes a negative number is shown black (see the attached snapshot)

Analysis:-
I have verified that when data is refreshed for parent RadGridView then ValueToColor foreground converter is not invoked for all the radmaskednumericInput control instances. this converter is invoked randomly for 7-8 instances out of 13 instances shown in the controls attached snapshot.

Converter and Behavior applie are :-
1) ValueToColorConverter:- converts decimal value to Red/Black colour brush during  first time load/refresh of the data.
2) TargetExposureConverter:- which is a multivalue converter to attach parameters to the RadMaskedNumericInput valuechanging command
3) RadMaskedInputValueChangingBehavior:- This behaviour changes the foreground of the RadMaskedNumericInput control's text on value changed.

 

public class ValueToColorConverter : IValueConverter

{

 

public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

{

 

var brush = new SolidColorBrush(Colors.Black);

 

Double doubleValue = 0.0;

 

Double.TryParse(value.ToString(), out doubleValue);

 

if (doubleValue < 0)

brush =

 

new SolidColorBrush(Colors.Red);

 

return brush;

}

 

public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

{

 

throw new NotImplementedException();

}

}

-----------------------------------------------

 

public class TargetExposureConverter : IMultiValueConverter

{

 

public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)

{

 

if (values == null)

 

return null;

 

if (values.Length != 2)

 

throw new ApplicationException("Expecting 2 parameters in TargetExposureConverter");

 

var targetExposureCmdParameter = new TargetExposureEditedCmdParam();

 

decimal value;

 

decimal.TryParse(System.Convert.ToString(values[0]), out value);

targetExposureCmdParameter.TargetExposure = value;

 

var targetExposureCell = values[1] as GridViewCell;

 

if (targetExposureCell != null && targetExposureCell.ParentRow != null)

{

targetExposureCmdParameter.CurrentRow = targetExposureCell.ParentRow.Item

 

as CcyExposureCurrencySummary;

}

 

return targetExposureCmdParameter;

}

 

public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)

{

 

throw new NotImplementedException();

}

}

-----------------------------------

 

public class RadMaskedInputValueChangingBehavior : Behavior<RadMaskedInputBase>

{

 

protected override void OnAttached()

{

 

base.OnAttached();

AssociatedObject.ValueChanging += OnValueChanging;

}

 

protected override void OnDetaching()

{

 

base.OnDetaching();

AssociatedObject.ValueChanging -= OnValueChanging;

}

 

void OnValueChanging(object sender, RadMaskedInputValueChangingEventArgs e)

{

 

var maskedInputControl = sender as RadMaskedNumericInput;

 

if (maskedInputControl == null)

 

return;

 

if (e.NewValue == null)

 

return;

 

double newVal;

 

if (!double.TryParse(Convert.ToString(e.NewValue), out newVal))

 

return;

maskedInputControl.Foreground = newVal < 0

?

 

Brushes.Red

:

 

Brushes.Black;

}

}

Hi,

I want to be able to handle key events on the GridView that will flip a GridViewColumn between view mode and edit mode programmatically. How do I do this?

Thanks, Sterren

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Your help is highly appreciated!
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I added a screen shot showing the styled scrollbar and the one I can't style.

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On my application, I have a Shell with a dockmenu on the left, and a documenthost on the center, here is the Shell.xaml :


I'm using a command in my ShellViewModel to add view in the DocumentHost region, it works correctly :


I overrided the close panel button to remove the view from the Region, it works too (Shell.xaml.cs) :



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Regards,
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I am looking for a sample of using Data triggers in cell style with auto commit

,something like the below style(not working)

Whenever user press a key inside the editor,i would like that the trigger will evaluate the current text

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<Setter Property="Background" Value="green" />
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</Style.Triggers>
</Style>

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I've cobbled together a custom region adapter from reading lots of threads on here, and everything works fine.

However, I've come up against a problem that I'm sure someone must've seen.

The regions are set on a RadPaneGroup level.  You add your view to a specific region and everything's great.

If the user then drags this pane out of that group, then the view is no longer in that region.  If they make the view floating, then it's no longer in any defined region - so how so I remove it using the RegionManager?

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                <telerik:RadRibbonGroup>
                    <telerik:RadButtonGroup>
                        <telerik:RadRibbonButton Size="Large" LargeImage="/Ressourcen;component/Resources/Delete.png"/>
                    </telerik:RadButtonGroup>
                        
                </telerik:RadRibbonGroup>

set the Size in xaml.
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