Questions on UI for WPF Forum

4 answers

255 views

Line Chart with Daily Data as Show chart as Weekly, monthly and Quarterly Data

Hi,

We have a chart bind to List of custom object with 3 properties with 1000+, One is DateTime, other two are double values, there is a single line for each value so we have two lines for the given data. It is working fine and we don't have any problem except that chart shows line as there values weekly instead of daily values.

Next we need to show chart for data weekly, monthly and or quarterly as per user requirements. Is there any built in functionality to show chart as weekly or monthly while we have daily data.

Thanks

Chart

answered on 27 Oct 2011

5 answers

423 views

UnSelect in single mode

How do I get the GridView to unselect a row when selection mode is Single? If not, is there a way to only allow a single row to be selected when selection mode is extended or multiple?

GridView

answered on 27 Oct 2011

1 answer

90 views

Trying to get group header to stick to tab headers on scroll

Hello, I am using Telerik version 2011.2 in Visual Studio 2010 with sp1. My team is writing an mvvm complaint WPF application using C#.
We are using Telerik's RadGridView to display a large amount of data, and the data is being grouped.
One thing that is nice about the grid view is that the scroll bar does not include the tab headers, so they stay visible at all times.

What I want to do is have the group headers exhibit the same behavior, so once one scrolls to the top it stays locked right under the tab headers, until the next group header comes into it's level and replaces it.

To be honest, I don't know how to implement this, I was wondering if someone had better insight or any ideas.

Thank you.
Eli

GridView

answered on 27 Oct 2011

4 answers

134 views

GridView Crashing on row selectionchange

Hi there,

We are facing a strange problem in RadGridView. Upon adding a new row in GridView and input some data, application crashes after changing the focus to another row using Mouse. Whereas, if we press tab button to move focus on next column there is no crashing.

Specified argument was out of the range of valid values.
Parameter name: index

This problem occurs only on one solution whereas same usercontrol is working perfectly fine when exported to other solution having same Telerik references.

Please help us to resolve this problem. Thanks
Stack Trace is attached

Regards,
Rehan

GridView

answered on 27 Oct 2011

0 answers

122 views

Find Control & setvalue to combobox or checkbox in GridView

Hi,
I want to get the checkbox and combobox controls within a RadGridView and want to modify a column in the same row. How it can be achieved?

Problem 1:
Want to save user name in a grid column within same row when I checked the checkbox value to true.
Problem 2:
Want to filter or rebind the combobox when a value is selected in another adjacent combobox as we have in Country and city relation.

Let me know if further explanation is required.

Thanks

GridView

asked on 27 Oct 2011

7 answers

275 views

delete inserted row on cancel

Hi!

I am inserting new rows with the INSERT key. Once a row was inserted, it can be edited by the user.
I want to delete the newly inserted row, if the user cancels the edit mode with the ESC key.

What is the easiest way to achieve this?

Thanks and regards,

Franziska

GridView

answered on 27 Oct 2011

1 answer

110 views

FontSize in Style

Dear telerik,
I am using radrichtext box. I am trying to set fontsize, font-family through style but it is not working.

<my:RadRichTextBox x:Name="txtChat">

<my:RadRichTextBox.Resources>

<Style TargetType="my:RadRichTextBox">

<Setter Property="FontSize" Value="32"></Setter>

<Setter Property="Height" Value="100"></Setter>

</Style>

</my:RadRichTextBox.Resources>

</my:RadRichTextBox>

Would you please tell me how can I set fontsize and font-family using style.

Regards
Animesh

RichTextBox

answered on 27 Oct 2011

4 answers

143 views

RadSlider SelectionEnd goes beyond Maximum

Hi,

I expect the SelectionEnd and SelectionStart values to stay within the bounds of the Maximum and Minimum but they don't. I created a small sample app that demonstrates this behavior.

View:

<Grid>

<StackPanel>

<StackPanel Orientation="Horizontal" Height="50">

<Label Content="Upper Thumb" />

<TextBox Width="300" Height="35" Text="{Binding Path=SelectionEnd}" />

</StackPanel>

<telerik:RadSlider Name="radSlider"

VerticalAlignment="top"

Width="25"

Height="200"

Margin="0 10 5 0"

IsSelectionRangeEnabled="True"

TickPlacement="None"

Minimum="0.0"

Maximum="1.0"

Orientation="Vertical"

SelectionStart="{Binding Path=SelectionStart, Mode=TwoWay, FallbackValue=0.25}"

SelectionEnd="{Binding Path=SelectionEnd, Mode=TwoWay, FallbackValue=0.5}"

LargeChange="0.05"

SmallChange="0.05" />

<StackPanel Orientation="Horizontal" Height="50">

<Label Content="Lower Thumb" />

<TextBox Width="300" Height="35" Text="{Binding Path=SelectionStart}" />

</StackPanel>

</Grid>

Code behind:

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

var vm = new SliderViewModel();

DataContext = vm;

}

ViewModel:

public class SliderViewModel : INotifyPropertyChanged

{

public SliderViewModel()

{

_selectionStart = 0.25;

_selectionEnd = 0.5;

}

private double _selectionStart;

public double SelectionStart

{

get

{

return _selectionStart;

}

set

{

if (_selectionStart != value)

{

_selectionStart = value;

OnPropertyChanged("SelectionStart");

}

private double _selectionEnd;

public double SelectionEnd

{

get

{

return _selectionEnd;

}

set

{

if (_selectionEnd != value)

{

_selectionEnd = value;

OnPropertyChanged("SelectionEnd");

}

public event PropertyChangedEventHandler PropertyChanged;

protected virtual void OnPropertyChanged(String propertyName)

{

var handler = PropertyChanged;

if (handler != null)

{

handler(this, new PropertyChangedEventArgs(propertyName));

}

Am I missing a property on the slider that will prevent this behavior or do I have to catch it manually?

Thanks,
Josh

Slider

answered on 27 Oct 2011

1 answer

139 views

ScrollIntoView(selectedItem) doesn't take into account grouping headers when refreshing grid

Hello

I seem to have found an issue with the ScrollIntoView method of the RadGridView. If we take a well populated grid so that it is necessary to scroll to reach the bottom, with the entries grouped in various groups.
When modifying an item at the bottom of the grid, when the grid refreshes, it scrolls to a point above the selected item, the height above where it should be seems to coincide exactly with the combined height of each of the grouping rows.

Thanks

GridView

answered on 27 Oct 2011

3 answers

723 views

Add text from code behind problem

Hi Telerik,

I am working with richtextbox. I am facing problem when I add text from code behind.
1. The richtextbox showing no text.
2. When I try to select text "Object reference not set" occur some time. Other time, after selecting the text become visible.
3. An additional enter is showing at the top of the richtextbox.

<Window x:Class="Imagine.TelerickTest.RichTextBox.WithoutMVVM"

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

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

xmlns:my="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Documents"

xmlns:radDoc ="clr-namespace:Telerik.Windows.Documents.Model;assembly=Telerik.Windows.Documents"

Title="WithoutMVVM" Height="500" Width="500">

<DockPanel>

<StackPanel DockPanel.Dock="Top">

<TextBlock Text="Input"></TextBlock>

<TextBox x:Name="txtInput" ></TextBox>

</StackPanel>