Questions on UI for WPF Forum

11 answers

1.9K+ views

DecimalSeparator: Key.OemPeriod vs Key.Decimal

Let me start by setting some context:

our customers mostly live in Flanders, Belgium; overhere, the default culture nl-BE has NumberDecimalSeparator = comma, and NumberGroupSeparator = blank space
in this post, I will make a clear distinction between "Key.OemPeriod", being the 'regular' period on a keyboard, and "Key.Decimal", being the period on the numpad

Now, most Belgians have a keyboard layout of Belgium - Period. This means that:

While typing text in for instance MS Word, the "Key.Decimal" will be interpreted as a period
Mathematical software, like for instance MS Excel, will Always interpret the "Key.Decimal" as a decimal separator.

(yes, that's right, even though the NumberDecimalSeparator for the nl-BE culture is a comma).

Up to the RadNumericUpDown.
When the culture is set to nl-BE, this control interprets the comma as a decimal separator. So far so good.
However, when the "Key.Decimal" is pressed, this is not interpreted as a decimal separator, but just like a "Key.OemPeriod" is.
This is not the expected behavior; it should be interpreted as a decimal separator.

I'd consider this is a bug.
Is there any work-around for this issue?

I tried creating a behavior that would handle the TextBox's PreviewKeyDown event.
This kind of works, but it has some side effects which makes it not perfect. Any other way to handle this?

Thanks for your time,
Koen

NumericUpDown

answered on 29 Apr 2015

1 answer

149 views

WPF controls for Partial Trust Application

Hi, I am trying to figure out if I can safely use telerik wpf controls in a partial trust wpf web application. I have read in the documentation that not all controls are compatible in this mode, and certain restrictions apply.

I have tried certain controls like menu and docking in a prtial trust application, just plain vanilla code defining these controls in XAML, but the application fails on trying to start degugging with no specific message. IfIa switch the application trust mode to a full trusted one everything works fine.

My question is therefore if I am able to use certain specific telerik controls like docking, and datagrid at all in a partial trust application which is my requirement, and if so where I can find more specific intructions.

Regards,

George

General Discussions

answered on 29 Apr 2015

3 answers

100 views

Restrict POI's DataTemplate area

Hello,

I'd like to restrict the size of my POI'S Datatemplate to be only shown in an explicit area so it won't get any bigger than this area.
Maybe a LocationRect would be given and my DataTemplate automatically expands and fills this Rect.

Can you tell me if there is a way to achieve anything similar to my requirements?

See a simplified version of my DataTemplate below:

<DataTemplate x:Key="ResizableTemplate">

<Grid x:Name="ParentRoot"

Background="Transparent"

telerik:MapLayer.Location="{Binding Path=Location}">

<StackPanel Orientation="Vertical" >

<TextBlock Text="{Binding Path=Title}" />

<TextBlock Text="{Binding Path=Description}" />

</StackPanel>

</Grid>

</DataTemplate>

VisualizationLayer:

<telerik:VisualizationLayer x:Name="POILayer" ItemsSource="{Binding POICollection}" ItemTemplate="{StaticResource ResizableTemplate}" />

Map

answered on 29 Apr 2015

2 answers

598 views

Print to Non-Default Printer in Code

Is there a way to print the file from the code behind, but specify the printer to use? I know there is a default printer, but that doesn't work for me. I am using it to print labels. The label printer is rarely the default printer on client machines.

Thanks

Randy

PDFViewer

answered on 29 Apr 2015

2 answers

120 views

Help with this Validation code

Okay, I am pulling my hair out and would like some help with this code. I took some code from this site to do cell validation. I don't have the current spreadsheet control and work will not pay for an upgrade, so I am trying to make due. Here is the code that does the validation I got to work (from another post):

private void ValidateCellValue(ICellValue cellValue)

{

bool isValid = false;

string stringValue = cellValue.GetResultValueAsString(CellValueFormat.GeneralFormat);

int intValue;

if (int.TryParse(stringValue, out intValue))

{

if (intValue >= MinIntValue && intValue <= MaxIntValue)

{

isValid = true;

}

if (!isValid)

{

MessageBox.Show("Not valid!");

Workbook workbook = new Workbook();

CellIndex activeCellIndex = this.worksheetEditor.Selection.ActiveCellIndex;

// Be carefull: SetValue() raises the CellPropertyChanged event.

this.worksheetEditor.Worksheet.Cells[activeCellIndex].SetValue(stringValue);

this.worksheetEditor.Worksheet.Cells[activeCellIndex].SetIsBold(true);

GradientFill greenGradientFill = new GradientFill(GradientType.FromCenter, Color.FromRgb(255, 255, 255), Color.FromRgb(252, 231, 0));

this.worksheetEditor.Worksheet.Cells[activeCellIndex].SetFill(greenGradientFill);

this.worksheetEditor.Focus();

}

As you can see, I can put a gradient fill behind the cell if the value is invalid. However, when I showed this to the users, they indicated it was to distracting and they just want the outline of the cell to be colored. So I found this code on the this site and have been trying to implement it:

private void InitializeRectangle(Rectangle rectangle, CellLayoutBox cellBox)

{

//rectangle.Fill = new SolidColorBrush(Colors.Red);

rectangle.Stroke = new SolidColorBrush(Colors.Red);

rectangle.StrokeThickness = 1;

rectangle.Width = cellBox.Width;

rectangle.Height = cellBox.Height;

Canvas.SetLeft(rectangle, cellBox.Left);

Canvas.SetRight(rectangle, cellBox.Top);

}

I have tried to pull this code in and replace the current gradient fill but keep running into problems. I would prefer to pass the cell to the InitializeRectangle method and have it paint the border red. Right now the method takes in a rectangle which isn't a problem, it is passing in the cellBox, how do I get the cell box in the validation method when the value is not valid?

Any help at all on this would be much appreciated.

Spreadsheet

answered on 28 Apr 2015

6 answers

247 views

Selection style

Hi,

I'm using the lastest version of Telerik and I also use the Office2013 theme. Actually, I create a custom UserControl which contain a RadScheduleView and I have some properties for different purpose. With the Office2013 theme, the highlighted items are not clearly visible on a laptop that's why I would like to know if it's possible to have a border of different color?!? At the same time, I would like to offer a property like "BorderSelectionColor".

I would like to cover the following situation:

- During a drag and drop operation, I would like to highligh + change the border color of the targeted appointments or slots cover by the source appointments

- I actually implemented a keyboard navigation pattern, the user can use the arrow keys to navigate through the slots or the appointements so I would like to highlight + change the border color of the slot or the appoinment where I am. The navigation mechanisim was already implemented but the highlight mechanisim not.

Thank's

Alain

ScheduleView

answered on 28 Apr 2015

6 answers

252 views

no xaml dll question

I downloaded wpf example for RadCartesian from telerik.com site and since we are already using no xaml version of dlls, I need help generating Styles for this example, I want something to start with so that I can see the chart, right now I can see anything:

<local:ChannelsControlBase.Resources>
<Style TargetType="TextBlock">
<Setter Property="FontFamily" Value="Segoe UI" />
</Style>
<SolidColorBrush x:Key="AccentBrush" Color="#FF8EC441" />
</local:ChannelsControlBase.Resources>

Chart

answered on 28 Apr 2015

6 answers

1.6K+ views

How to get selected rows column value/s ?

Hello,
I'm looking for radGridView code for "specific column" Single or Multiple grid row selection; Looking for similar functionality in radGriedView.
-------------------------------------------------------------------------------
GridViewRow row = GridView1.SelectedItem;
textboxCount.Text = row.Cells[2].Text + ".";
-----------------------------------------------------------------------------------

Thanks,
Raj

GridView

answered on 28 Apr 2015

1 answer

191 views

NewRowPosition in RadGridView

I have NewRowposition at the top which is working fine.

My Issue is when I click on that the Row ID# always shows '0'. I want it to show the next available ID on the Grid. How Can I do this ?

GridView

answered on 28 Apr 2015

2 answers

293 views

Header values for RadPivotGrid

Hi,

I am using RadPivotGrid with my dyynamic selection of data and each time i get the datatable, i add appropriate values in LocalDataSourceProvider.RowGroupDescriptions, LocalDataSourceProvider.ColumnGroupDescriptions, LocalDataSourceProvider.AggregateDescriptions. I am using the following sample code to add values in these collection as example

var property = new PropertyGroupDescription();

property.PropertyName = item.DisplayName;

property.CustomName = item.DisplayName;

LocalDataSourceProvider.RowGroupDescriptions.Add(property);

All works fine. But in case of "RowGroupDescriptions", i want to display header values to let user know what they are. I have attached an image to describe the requirement.

here you can see that i have added "ID", "Status" and "TrackingNumber" in RowGroupDescriptions. "Priority" in ColumnGroupDescriptions and "Value" in ColumnGroupDescriptions. All looks good but i am unable to get header values for RowGroupDescriptions fields as mentioned in screenshot.

Please note that these fields are dynamic that is they can be changed according to the selection.

Any kind of help or suggestion is really appreciated.

Thanks

Waqas Habib

PivotGrid

answered on 28 Apr 2015