Questions on UI for WPF Forum

3 answers

155 views

DataAnnotation derived ValidationAttribute

I'm using DataAnnotations for validation. Built-in MS annotation such as [RequiredAttribute] works fine but custom annotation are firing and validating properly. However, the cell aren't getting the red border, only the error message tooltip. Any idea why?

[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, AllowMultiple = false)]
public class MustBeUniquePostalCodeAttribute : ValidationAttribute
{

private bool v;

protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
DcfItemViewModel instance = validationContext.ObjectInstance as DcfItemViewModel;

v = true;
if (instance.isNew)
{
string postalCode = instance.PostalCode;
IList<Dcf> dcfList = instance.Parent as IList<Dcf>;
Dcf dcfEntity = instance.dcfEntity;

bool exists = dcfList.Any(d => !d.Equals(dcfEntity) && String.Equals(postalCode, d.PostalCode, StringComparison.OrdinalIgnoreCase));

if (exists)
{
v = false;
return new ValidationResult("Value must be unique");
}
}

return ValidationResult.Success;

}

public override bool IsValid(object value)
{
return v;
}

}

GridView

answered on 21 Feb 2013

2 answers

159 views

Row details on demand

Hi,

I'm using GridView biding with an collection property in my view model.

Now, I need to explode row details.
The content of my row detail depends on witch cell was clicked.

I will have another GridView, inside row detail, but this GridView need to be bindend with another property in the same view model.
This property will be populated with data that depends on wich cell was selected.

Can you help me?

GridView

answered on 21 Feb 2013

1 answer

117 views

HTML Export - text-transform

Hello,

I'm using the RadRichTextBox control with some predefined styles.

I have a 'Title' style. Is there any way to add the generated CSS this property : text-transform: uppercase; ???

For example, I would like to get something like this:

<p style="text-indent: 0pt;padding: 0px 0px 0px 0px;margin-top: 0px;margin-right: 0px;margin-bottom: 15px;margin-left: 0px;text-indent: 0px;line-height: 1.15;text-align: left;">
<span style="font-family: 'Arial';font-style: Normal;font-weight: normal;font-size: 12px;color: #000000;text-transform: uppercase;">Hello World!</span>
</p>

Thank you for your help!

Best Regards

Pierre

RichTextBox

answered on 21 Feb 2013

6 answers

196 views

Format Edited Value

Hi,

When I edit cell values the new values don't get formatted.

For example, if I edit a value on a column which has a data format string of N2 and I enter the number 1.2345678 I would expect the number to be formatted to 1.23 but the full number is displayed.

I was wondering if there was a way to get the edited values to adopt the formatting specified on the column?

Thanks,

Steven

GridView

answered on 21 Feb 2013

1 answer

66 views

Calendar

Hi,

I have list of Dates with Passed and Failed runs for each month. For Example, If February month date 15th has Passed Runs, the date should be displayed with GreenColor font, as well date 16th has failed runs, then 16th should be displayed with Red Color.

Please suggest me how to implement this kind of scenario with Calendar control

Calendar

answered on 21 Feb 2013

1 answer

239 views

Override RadAutoCompleteBox

Hi
we are trying to override RadAutoComplete default style. (right click on the control in Document outline window=> Edit Template => Edit A copy)
We would like that the RadListBox Popup that appears when a text is being typed in the RadAutoCompleteBox will have a different style.
(The new popup template will be => TextBlock as a Header than the RadListBox then TextBlock as a footer).
The RadAutoCompleteBox is binded the to a ObservableCollection.
The problem is that the when we try to override the default style (we haven't change it yet, we just use it) no values appear in the ListBox.
If we don't override the default style the RadAutoComplete works fine.
Can you help us solve the problem?

(this section will be overrided to achieve the desired behavior:
<Popup x:Name="PART_Popup">
<Grid x:Name="PopupRoot">
<telerik:RadListBox x:Name="PART_ListBox" CanKeyboardNavigationSelectItems="{x:Null}" IsTabStop="False" ItemTemplate="{TemplateBinding DropDownItemTemplate}" IsTextSearchEnabled="True" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding MinDropDownWidth}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" SelectedValueBinding="{x:Null}" TextBinding="{x:Null}" KeyboardNavigation.TabNavigation="Once">
<telerik:StyleManager.Theme>
<telerik:Office_BlackTheme/>
</telerik:StyleManager.Theme>
</telerik:RadListBox>
</Grid>
</Popup>

)

AutoCompleteBox

answered on 21 Feb 2013

4 answers

98 views

Performance issue

Hello Support,
I have very serious issue with breadcrumb performance, I have created Windows file explorer like utility and displaying hierarchical structure in breadcrumb. It works fine until I browse a folder which contains more than 10K folder, the UI freezes every time and it takes lot of time to list folders in breadcrumb.

I am wondering why breadcrumb does not support virtualization out of the box? and what is the workaround forit.

Any help is appreciated.
thanks,
earthcaller

BreadCrumb

answered on 21 Feb 2013

1 answer

158 views

RadPieChart displaying Labels and values

Hi there,

Is there a way to show the value of the pie slice along with the label in the RadPieChart.

Thanks,
wade

ChartView

answered on 21 Feb 2013

1 answer

64 views

ChartTrackBallBehavior on Polarchart

I have been able to add the charttrackballbehavior, but all i get is a small rounded rectangle at the top of my page, when I mouse-over the chart. I read something about adorners, would it be possible that one of my own adorners is somehow interfering, or is this behavior simply not supported for the polarchart?

ChartView

answered on 21 Feb 2013

1 answer

95 views

Migrating from WinForms property grid using RadPropertyStore

I currently use the WinForms property grid with a RadPropertyStore - is there a simple migration path in order to be able to use the WPF one, or is it a case of modifying code and maintaining two separate code bases for the WPF and WinForms versions (as I will need to retain the WinForms functionality)?

Thanks

Matt

PropertyGrid

answered on 21 Feb 2013