Questions on UI for WPF Forum

3 answers

444 views

Binding ValidationRules not displayed in Grid

I'am trying to implement a data validation for the columns in my RadGridView. I would like to validate the data that is loaded into the grid, not the data that is entered by the user into the grid. To to this I've written a ValidationRule which returns a ValidationResult and implemented this rule in the binding of the column:

<telerik:GridViewDataColumn Header="Test" >

<telerik:GridViewDataColumn.DataMemberBinding>

<Binding Path="MyObject.MyProperty" Converter="{StaticResource TestConverter}" NotifyOnValidationError="True">

<Binding.ValidationRules>

<validators:TestValidator ValidatesOnTargetUpdated="True" />

</Binding.ValidationRules>

</Binding>

</telerik:GridViewDataColumn.DataMemberBinding>

</telerik:GridViewDataColumn>

These are the settings I've set on my RadGridView:

<telerik:RadGridView telerik:StyleManager.Theme="Expression_Dark" AutoGenerateColumns="False" CanUserDeleteRows="True" CanUserInsertRows="False" ShowColumnHeaders="True" SelectionMode="Extended" EnableColumnVirtualization="False" RowIndicatorVisibility="Collapsed" RowDetailsVisibilityMode="Collapsed" EditTriggers="None" ClipboardCopyMode="None" ClipboardPasteMode="None">

The ValidationRule is called when loading data into the Grid and a negative ValidationResult is returned, but the error is not displayed in the Grid. What am I doing wrong?

GridView

answered on 18 Mar 2016

4 answers

264 views

How to bind dataformcombobox field to an enum?

I have a datadormcombobox field in raddataform i have tried to set Items source property binding to Enum ""but it wont load contents from enum.Also if I set autogenerate fields property to true then it loads enum in combobox.so whats wrong with manual setting?

DataForm

answered on 18 Mar 2016

3 answers

97 views

Radwindow does not handle rotation correctly

Hi,

as you can see from the attached images, when i rotate the screen (i am on a surface pro 4 with 200% zoom but it's happening also with 100%) the radwindow (as a mainwindow) does not handle the rotation correctly

please check also the project here https://onedrive.live.com/redir?resid=D2C17D45B1412CBA!114&authkey=!AAkiuRoVn6n7nVo&ithint=file%2czip

the scenario is different if you start the window in landscape or portait mode.

but in both scenario the window can't completely maximize

Window

answered on 17 Mar 2016

2 answers

205 views

Question regarding floating

Hi,

I have built an application with the Telerik WPF UI which is used to host other application using the Win32 SetParent function. Basically I can use it to host a number of other applications, similar as to how Chrome or Edge works. It works fine: I can host any application inside a number of radpanes. To achieve this, I have a WindowsFormsHost with a Panel on it. I use the Hwnd of the Panel to reparent the window of another process.

However, when I start undocking a pane by dragging it, the reparented window suddenly disappears and the pane is empty. I tried to handle this by listening to the PaneStateChange and PreviewPin events but that is not enough. I need to know that the pane will become undocked so I can park the parented window somewhere else while the pane is made to float. Is there a formal way to achieve this?

Thanks

Docking

answered on 17 Mar 2016

3 answers

176 views

RadWindow Maximized state bug on Windows 10 ?

Hi,

I'm using the RadWindow as MainWindow for my app but when I try to maximize it, the RadWindow only takes half of the screen and buttons are hidden (see screenshot 1 and 2).

I can drag the RadWindow to get its size and buttons back.

This behavior happends also in the Demo application of UI for WPF (as shown in screenshots 3 and 4), so I think about a bug on Windows 10.

Is there any workaround for this issue ?

Regards

Window

answered on 17 Mar 2016

3 answers

325 views

RadDocumentEditor - Insert table with HorizontalAlignment.Center

Hello,
I have a RadDocument and want to exchange a specific text against a table with the same HorizontalAlignment and other style properties. i.e.:

some text some text some text some text
some text some text some text some text
"centered bold text"
some text some text some text some text
some text some text some text some text

(the text "centered bold text" have to exchange against my table withHorizontalAlignment = Center and FontWeight = Bold)

TextRange rt = search.FindAll("centered bold text").First();

document.CaretPosition.MoveToPosition(rt.StartPosition);

document.Selection.AddSelectionStart(rt.StartPosition);

document.Selection.AddSelectionEnd(rt.EndPosition);

How can I get information about the style settings of the text at the CaretPosition?

The insertion of the table isn't without styles works:

RadDocumentEditor editor = new RadDocumentEditor(document);

// How to get the styles

editor.Delete(false);

Table table = GetSomeTelerikTable();

// How to set the style - especially Horizontal alignment for center/right

// table.HorizontalAlignment = RadHorizontalAlignment.Center;

editor.InsertTable(table);

...

// I tried the following for a fixed value of HorizontalAlignment, but this didn't work:

//editor.ChangeTableHorizontalAlignment(RadHorizontalAlignment.Center);

...

document.MeasureAndArrangeInDefaultSize();

How can I set this style properties for my new table?

Thanks a lot

RichTextBox

answered on 17 Mar 2016

1 answer

161 views

Strip out all items except circle spin wheel thing

I want to use a busy indicator or progress bar or something to display a spinning wheel and not the rest of the content. help!

BusyIndicator

answered on 17 Mar 2016

2 answers

263 views

Accessing LineSeries LabelDefinitions inside CategoricalSeriesDescriptor

I am trying to provide custom label definition for dynamic line series.I could not set access LabelDefinitions for line series type inside CategoricalSeriesDescriptor.Style . Can you please suggest how to do it ?

<telerik:RadCartesianChart.SeriesProvider>

<telerik:ChartSeriesProvider Source="{Binding YourData}">

<telerik:ChartSeriesProvider.SeriesDescriptors>

<telerik:CategoricalSeriesDescriptor ItemsSourcePath="YourData" ValuePath="Value" CategoryPath="Category">

<telerik:CategoricalSeriesDescriptor.Style>

<Style TargetType="telerik:LineSeries">

<Setter Property="LabelDefinitions">

<Setter.Value>

<telerik:ChartSeriesLabelDefinition HorizontalAlignment="Center" VerticalAlignment="Center" >

<telerik:ChartSeriesLabelDefinition.Template>

<DataTemplate>

<TextBlock Foreground="DarkBlue" Text="{Binding DataItem.Value}" />