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25,624 questions

3 answers

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RadWindow default dialogs - slow mouse point movement

Using Telerik.Windows.Controls library for WPF, version 2010.2.924.35, within a WPF .NET 3.5 application. When I use the static Alert, Prompt, or Confirm methods, a RadWindow opens up, but the hovering of the mouse cursor over any other typical RAD controls in the window (the 'Ok' or 'Cancel' RadButtons, the 'X' close RadButton in the top right corner, the Prompt dialog's RadTextBox) is slow/sluggish. This sluggishness only lasts for a second or two while the control goes through its state change due to the inherent mouse over/hover event.

I'm not doing anything fancy:

public partial class Window1 : Window

{

public Window1()

{

InitializeComponent();

RadWindow.Alert( "Hello World!" );

RadWindow.Prompt( "Hello Prompt!", ClosedEvent );

RadWindow.Confirm( "Hello Confirm!", ClosedEvent );

}

private void ClosedEvent( object sender, WindowClosedEventArgs e )

{

}

}

Please help! Thanks!

answered on 03 Feb 2011

1 answer

91 views

WPF Videos

Hi,

Is the source code for the video demonstrations available?

Cheers, Steve

General Discussions

answered on 03 Feb 2011

1 answer

136 views

Splitterposition loading issue

Hello,

I have an issue with the raddocking's loadlayout().
When i try to load a layout, sometimes the splittercontainer's position fails to load correctly.

I've made a small demo to represent the problem.

<telerikDocking:RadDocking x:Name="dokcingMain">

<telerikDocking:RadDocking.DocumentHost>

<telerikDocking:RadSplitContainer>

<telerikDocking:RadPaneGroup x:Name="PaneGroup" >

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane1"

Header="Pane1" BorderThickness="0"

CanUserClose="False" CanFloat="False" CanUserPin="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane2"

Header="Pane1" BorderThickness="0"

CanUserClose="False" CanFloat="False" CanUserPin="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane3"

Header="Pane3" BorderThickness="0"

CanUserClose="False" CanFloat="False" CanUserPin="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane4"

Header="Pane4" CanUserClose="False"

CanUserPin="False" CanFloat="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane5"

Header="Pane5" BorderThickness="0"

CanUserClose="False" CanFloat="False" CanUserPin="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane6"

Header="Pane6" BorderThickness="0"

CanUserClose="False" CanFloat="False" CanUserPin="False"

ContextMenuTemplate="{x:Null}"/>

<telerikDocking:RadPane telerikDocking:RadDocking.SerializationTag="pane7"

Header="Pane7" BorderThickness="0"

CanUserClose="False"

ContextMenuTemplate="{x:Null}"/>

</telerikDocking:RadPaneGroup>

</telerikDocking:RadSplitContainer>

</telerikDocking:RadDocking.DocumentHost>

</telerikDocking:RadDocking>

After i started the demo, I floated the Pane7, then I re-docked it to the inner-left area (so there will be 2 radpanegroups at the end).
I set the splitter's position by hand, then saved the layout to an xml file.

Here is the result:

<RadDocking>

<DocumentHost>

<RadSplitContainer>

<Items>

<RadPaneGroup RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True" SplitterChange="42,2180640734751" SelectedIndex="0">

<Items>

<RadPane SerializationTag="pane7" IsDockable="True" Title="Pane7" Header="Pane7" CanUserClose="False" />

</Items>

</RadPaneGroup>

<RadPaneGroup SplitterChange="456,781935926525" SelectedIndex="0">

<Items>

<RadPane SerializationTag="pane1" IsDockable="True" Title="Pane1" Header="Pane1" CanUserClose="False" CanUserPin="False" CanFloat="False" />

<RadPane SerializationTag="pane2" IsDockable="True" Title="Pane1" Header="Pane1" CanUserClose="False" CanUserPin="False" CanFloat="False" />

<RadPane SerializationTag="pane3" IsDockable="True" Title="Pane3" Header="Pane3" CanUserClose="False" CanUserPin="False" CanFloat="False" />

<RadPane SerializationTag="pane4" IsDockable="True" Title="Pane4" Header="Pane4" CanUserClose="False" CanUserPin="False" CanFloat="False" />

<RadPane SerializationTag="pane5" IsDockable="True" Title="Pane5" Header="Pane5" CanUserClose="False" CanUserPin="False" CanFloat="False" />

<RadPane SerializationTag="pane6" IsDockable="True" Title="Pane6" Header="Pane6" CanUserClose="False" CanUserPin="False" CanFloat="False" />

</Items>

</RadPaneGroup>

</Items>

</RadSplitContainer>

</DocumentHost>

<SplitContainers />

</RadDocking>

As you can see, the first radpanegroup is approximately ~42px wide, while the second is 456px. So far so good...
But when i try to load these settings, the splitter's position fails to load correctly.

I've made a screenshots before and after the layout loading.

Before:
Right splitter position screenshot

After:
Wrong splitter position screenshot

Have you got any idea what could cause this behaviour? Any help will be appreciated.

Greetings,
Thomas

answered on 03 Feb 2011

5 answers

106 views

DatePicker Error Q3 2009 for WPF

I'm setting the culture of datepicker and use the code below.

CultureInfo cultureInfo = new CultureInfo("en-US");

DateTimeFormatInfo dateInfo = new DateTimeFormatInfo();

dateInfo.ShortDatePattern = "MM/yyyy";

cultureInfo.DateTimeFormat = dateInfo;

radDatePicker1.Culture = cultureInfo;

i've set the IsReadonly= true so that the user cannot input by manually inputing a date, the code above is working fine, but when you click the DatePicker textbox and then click another control error is occured, "Object not set to a reference of object" any idea?

answered on 03 Feb 2011

1 answer

82 views

Need an Example for Drag and Drop

Hi,

I looked couple of example for drag and drop. But could not find one for Drag and Drop within RadGridView with user feedback.

Please provide the code specifically for this. I did implemented without user feedback but I need to implement one with user feedback.

Thanks
Sanket Singhvi

answered on 03 Feb 2011

5 answers

293 views

RadGridView and checkbox IsSelect properties binding in xaml

Hi,
I am very biginer in Telerik controls. I am facing a problem related to properties binding ( automatic ) . i have a Gridview and inside grid view i have a checkbox , i need to implement functionality where i have to select checkbox on rowselection in xaml.

my code is following ...

<

ex:ExGridView Name="gvItemList" MultipleSelect="True" EnableColumnVirtualization="False" Grid.Column="0" Grid.ColumnSpan="5" Grid.Row="15"

AutoGenerateColumns="False" MaxHeight="200" IsReadOnly="True" RowLoaded="gvItemList_RowLoaded" >

<tcp:RadGridView.Columns>

<ex:ExGridViewDataColumn Width="20" IsResizable="False">

<tcp:GridViewDataColumn.CellStyle x:Uid="chkSelect">

<Style TargetType="tcp:GridViewCell">

<Setter Property="tcp:GridViewCell.Template">

<Setter.Value>

<ControlTemplate TargetType="tcp:GridViewCell">

<CheckBox CommandParameter="{Binding}"

HorizontalAlignment="Center" VerticalAlignment="Center"

IsChecked="{Binding Path=IsSelected, Mode=TwoWay,RelativeSource={RelativeSource FindAncestor,
AncestorType={x:Type tcp:GridViewDataColumn}}}" Checked="CheckBox_Checked" Unchecked="CheckBox_Checked"/>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</tcp:GridViewDataColumn.CellStyle>

</ex:ExGridViewDataColumn>

<ex:ExGridViewDataColumn PhraseID="2464" UniqueName="ItemCode" DataMemberBinding="{Binding Path=ItemCode, Converter={StaticResource stringToDisplayStringConverter}}" ></ex:ExGridViewDataColumn>

<ex:ExGridViewDataColumn PhraseID="1218" UniqueName="ItemName" DataMemberBinding="{Binding Path=ItemName, Converter={StaticResource stringToDisplayStringConverter}}" Width="130"></ex:ExGridViewDataColumn>

<ex:ExGridViewDataColumn PhraseID="1607" UniqueName="DepartmentName" DataMemberBinding="{Binding Path=DepartmentName, Converter={StaticResource stringToDisplayStringConverter}}" ></ex:ExGridViewDataColumn>

<ex:ExGridViewDataColumn PhraseID="1002" UniqueName="CategoryName" DataMemberBinding="{Binding Path=CategoryName, Converter={StaticResource stringToDisplayStringConverter}}" ></ex:ExGridViewDataColumn>

</tcp:RadGridView.Columns>

</ex:ExGridView>

we have extendened radgrid in customizable form. still i don't have idea to bind checkbox's checked property to gridview's IsSelect property , i don't want to link object properties , but i need to bind both controls(checkbox and gridrow ) properties . Please have a look and give me some assistance .

Thanks In advance
Regards

Devendra Kumar

answered on 03 Feb 2011

1 answer

267 views

How to bind to XML Attribute (XPath=@ID)?

I just switched from .NET DataGrid to RadGridView, but the bindings don't work like in the DataGrid. In RadGridView, all rows are empty. I've looked everywhere, and I haven't found any examples of how to use XPATH in RadGridView. I'd appreciate if you could help me to troubleshoot the bindings below. Thank you.

<telerik:RadGridView Grid.Column="1"

Grid.Row="1"

AutoGenerateColumns="False"

DataContext="{Binding MyXMLDoc}"

ItemsSource="{Binding XPath=/Nodes/Node}"

RowIndicatorVisibility="Collapsed"

ShowGroupPanel="False"

GridLinesVisibility="Horizontal">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Width="200"

DataMemberBinding="{Binding XPath=@Key}">

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal" VerticalAlignment="Top" >

<Image Source="{Binding XPath=@Icon}" ToolTip="{Binding XPath=@Tooltip}" Style="{StaticResource ico16}" />

<TextBlock Text="{Binding XPath=@Key}" Foreground="Black" />

</StackPanel>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

answered on 03 Feb 2011

1 answer

94 views

[Solved] Insertion of new rows in a hierarchical gridview

I am having a hierarchical gridview, where I am having a gridview nested into another.

When am trying to insert a new item in the OUTER grid by pressing 'Insert', I do get a new item, but I am not able to insert nested gridview items into it. (Basically I was expecting to see an empty instance of the nested gridview appearing when I insert an item in the outer gridview. ) How can I get the nested gridview for the new items inserted in the outer gridview?

answered on 03 Feb 2011

5 answers

838 views

WPF RadTreeView operations using MVVM pattern

Hi,
We are using telerik treeview along with MVVM pattern in a WPF application. The view model exposes an observable collection to which nodes in the tree bound to. Also, viewmodel exposes the commands required to add delete and edit nodes in the tree.

I think, When i add/remove an item in the observable collection it should get reflected in the tree but my concern is, will it preserve the state of expanded tree node after its child nodes are modified?

Also i need to add (drop) a node in the treeview by dragging it from another tree or any other control.

I have few queries:
1. Can you please provide us a sample for add/edit/delete node and drag/drop? It will be great if sample uses MVVM pattern.
2. How theses operations in RadTreeVIew are diffrent/easy as comapred to when i use WPF standard treeview
3. Can you please shed some light on UI virtualization support in telerik wpf treeview?

Thanks
Sonal

answered on 02 Feb 2011

4 answers

161 views

Programmatic Styling of RadDataFilter

Hello,

I am trying to apply the Windows 7 theme to the RadDataFilter control. If I do so in XAML it works fine. But, if I try to style the control programmatically when the control is loaded (an approach that works for the RadGridView), it does not seem to work. Does anyone know how I can go about styling the control programmatically?

The code I am using is as follows:

// Specify the theme to use for this control.

Theme theme = ThemeManager.FromName("Windows7");

if (theme != null)

{

StyleManager.SetTheme(this, theme);

}

As always, any help, pointers or even thoughts would be appreciated!

Thanks,
Mark.

answered on 02 Feb 2011

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