Questions on UI for WPF Forum

5 answers

1.0K+ views

Size of QRCode doesn't match Width & Height set on control

I want the QRCode size to match the Width & Height I specify on the control, but this doesn't work.
The size of the QRCode seems to be limited by Width & Height, but only changes when I set the Version differently.

I have tried to set the content alignment to Stretch also to no effect.

Can you please tell me how to do this?

Thanks,
Alan

BarCode

answered on 26 Sep 2016

6 answers

270 views

Timespan based zoom level

I have a RadCartesianChart with a DateTimeContinuousAxis.

Is it possible to specify a zoom level based on a timespan?

So that I only see 10 minutes of the chart - even when adding more data. And off course being able to pan through the rest of the chart.

/Flemming Rosenbrandt

ChartView

answered on 26 Sep 2016

10 answers

2.1K+ views

Download previous versions

Hi guys

I am getting extremely frustrated and actually quite angry because I can't find a way on the Telerik website to download a specific version of the WPF controls. I need version 2012.1.326 but all I can find is realease notes. This is of no use to me. Please will someone help me out?

General Discussions

answered on 26 Sep 2016

4 answers

270 views

[Solved] DynamicObject - GetMemberBinder Name truncated after "."

Hi,

I have the following RadGridView where its ItemsSource which is bound to a collection that its item is inherited from DynamicObject.

As shown in the screenshot, how can i prevent the column name with "." being truncated in TryGetMember() method?

<telerik:RadGridView Grid.Row="1" Margin="4"

GroupRenderMode="Flat"

ShowGroupPanel="False"

RowIndicatorVisibility="Collapsed"

CanUserFreezeColumns="False"

ItemsSource="{Binding TestResultRecords, Mode=OneWay}"

AutoGenerateColumns="True"

IsReadOnly="True"

CanUserReorderColumns ="False"

CanUserInsertRows="False"

CanUserDeleteRows="False"

behavior:MyScrollIntoViewAsyncBehavior.IsEnabled="{Binding IsScrollToView, Mode=OneWay}">

<telerik:RadGridView.SortDescriptors>

<telerik:SortDescriptor Member="{x:Static res:UIStringTable.DutCnt}"

SortDirection="Ascending" />

</telerik:RadGridView.SortDescriptors>

</telerik:RadGridView>

TestResultRecords = new ObservableCollection<VolatileDynamicColRecord>();

m_TestRecord = new VolatileDynamicColRecord();

m_TestRecord["Sweep Voltage1-@2.5mA(V)"] = 1234

m_TestRecord["Sweep Voltage1-@2.8mA(V)"] = 5678

m_TestRecord["Sweep Voltage1-Item3(V)"] = 2.74353

TestResultRecords.Add(m_TestRecord);

public class VolatileDynamicColRecord : DynamicObject, INotifyPropertyChanged

{

private readonly IDictionary<string, object> m_Data;

public VolatileDynamicColRecord()

{

m_Data = new Dictionary<string, object>();

}

public VolatileDynamicColRecord(IDictionary<string, object> source)

{

m_Data = source;

}

public override IEnumerable<string> GetDynamicMemberNames()

{

return m_Data.Keys;

}

public IEnumerable<object> GetDynamicMemberValues()

{

return m_Data.Values;

}

public override bool TryGetMember(GetMemberBinder binder, out object result)

{

// Note: when column name contains ".", the text after "." will be truncated.

result = this[binder.Name];

return result != null ? true : false;

}

public override bool TrySetMember(SetMemberBinder binder, object value)

{

if (this[binder.Name] == null)

{

return false;

}

this[binder.Name] = value;

return true;

}

public object this[string columnName]

{

get

{

if (m_Data.ContainsKey(columnName))

{

return m_Data[columnName];

}

return null;

}

set

{

if (!m_Data.ContainsKey(columnName))

{

m_Data.Add(columnName, value);

OnPropertyChanged(columnName);

}

else

{

if (m_Data[columnName] != value)

{

m_Data[columnName] = value;

OnPropertyChanged(columnName);

}

private void OnPropertyChanged(string propertyName)

{

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

#region INotifyPropertyChanged Members

public event PropertyChangedEventHandler PropertyChanged;

#endregion

GridView

answered on 23 Sep 2016

6 answers

1.2K+ views

Getting CommandParameter

Hi all,

I am trying to get the parameter out of CommandParameter on a button click. I got the parameter values in the EXECUTE method. The issue is the type of my parameter is not what I expected and also I am unable to cast it.

This is what I have as my parameter value.

Now, I can see the type of my parameter is Telerik.Windows.Controls.Primitives.SelectionChanger<object>, but I am not able to cast it in codebehind as I cannot see Telerik.Windows.Controls.Primitives.SelectionChanger.
Not sure if I am able to put my question correctly and completely. Please let me know if you need more information.

Regards,
Deepak

Buttons

answered on 22 Sep 2016

4 answers

1.0K+ views

[Solved] How to set as "Not Editable"

Hi to all,

I don't understand wich property I have to set a not-editable combobox.

I've attached view in readonly-mode also. I hope it is clarifier.

I tryed with trigger and set IsReadOnly property, but ComboBox is still editable (I can't edit, but I can selected by dropdown)

01.<Style x:Key="FieldLongComboBoxStyle" TargetType="telerik:RadComboBox" BasedOn="{StaticResource RadComboBoxStyle}">

02. <Setter Property="Margin" Value="5"/>

03. <Setter Property="IsEditable" Value="True"/>

04. <Setter Property="ClearSelectionButtonVisibility" Value="Visible"/>

05. <Setter Property="ClearSelectionButtonContent" Value="Cancella selezione"/>

06. <Setter Property="TextSearchMode" Value="StartsWith"/>

07. <Setter Property="EmptyText" Value="Valore non selezionato"/>

08. <Setter Property="Width" Value="200"/>

09. <Setter Property="HorizontalAlignment" Value="Left"/>

10. <Style.Triggers>

11. <DataTrigger Binding="{Binding CantUpdateModel}" Value="True">

12. <Setter Property="IsReadOnly" Value="True"/>

13. </DataTrigger>

14. <DataTrigger Binding="{Binding CantUpdateModel}" Value="False">

15. <Setter Property="IsReadOnly" Value="False"/>

16. </DataTrigger>

17. </Style.Triggers>

18. </Style>

ComboBox

answered on 21 Sep 2016

3 answers

298 views

[Solved] WebBrowser in RadWindow content "white"

Hi to all,

I created a RadWindow that contains WebBrowser control.

Simply, I execute Navigate method in Loaded event of RadWindow

It navigates to local url http://mylocalserver:8090/blablabla

When I open the window it appers empy, but if view HTML source is full, moreover, if I try to printer preview appers all content of webpage.

Are there problems between RadWindow control and WebBrowser?

PS: I tryed to exec InvalidateLayout method of RadWindow, but without resolve.

<telerik:RadWindow x:Class="Brema.Client.Helpers.BlogViewer"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

Header="Aiuto in linea" Height="640" Width="480" WindowStartupLocation="CenterScreen" Style="{StaticResource RadWindowStyle}">

<Grid>

<WebBrowser x:Name="MainWebBrowser" />

</Grid>

</telerik:RadWindow>

Window

answered on 21 Sep 2016

2 answers

128 views

RadComboBox TestInputString not found

Hello,

I am refering to this documentation http://docs.telerik.com/devtools/wpf/api/html/P_Telerik_Windows_Controls_RadComboBox_TextInputString.htm

I want to get the InputString. I have updated the dll to version 2016.3.914 but still I could not find the property in XAML.

Could someone tell me what have I done wrong?

General Discussions

answered on 21 Sep 2016

2 answers

76 views

Drag&Drop issue

Hello,

when in edit mode with a row validation error it is still possible to perform Drag&Drop operations. They are not visible while performing the Drop, but the rows will be sorted just after clearing the row validation error.

Greeting

Raul

GridView

answered on 21 Sep 2016

3 answers

334 views

Why is RadNumericUpDown.Value property not bound to double? type property?

I have the following property in my ViewModel:

public double? MinimalValue

{

get { return this._minimalValue; }

set { this.SetProperty(ref this._minimalValue, value); }

}

In XAML I try to bind RadNumericUpDown.Value property to abovementioned property in the following way:

<telerik:RadNumericUpDown Grid.Row="0" Grid.Column="1" Height="30" Margin="0 30 10 0" IsEditable="True" Value="{Binding MinimalValue, Mode=TwoWay}"/>

But the following error occurs: 'Value' local property is applied only to the types that are derivative from 'RadRangeBase'. So can I bind RadNumericUpDown.Value property to the property in my ViewModel or not?

NumericUpDown

answered on 21 Sep 2016