Questions on UI for WPF Forum

2 answers

147 views

Hello, i have an application, with docking scenario created by code.

I need to khow how prevent some RadPanes show compass, when drag over some RaqdSplitcontainers or RadPanesgroup.

I read:
http://www.telerik.com/help/wpf/raddocking-how-to-implement-conditional-docking.html

But this solution is for all docking elements, i need a conditional docking for each item :P, for example a RadPane never can be docked in the same splitcontainer of my RadPaneToolBar

Thanks in advance.

Docking

answered on 25 Jan 2011

1 answer

62 views

LayoutChangeStarted Not Fired

Hi,
I just noticed that the LayoutChangeStarted event is not fired when I select a different RadPane if the RadPanes have CanFloat set to false. As soon as I set CanFloat to true, selecting between the tabbed panes causes the event to be fired. Is this by design? Is there another way to track the current selected pane?

Thanks.

Docking

answered on 25 Jan 2011

3 answers

203 views

Problem editing RadTreeViewItem, PreviewEditStarted not fired

Hello i have a problem, trying to edit a oRadTreeViewItem

All tree is generated by code (not binding)

RadTreeViewItem oRadTreeViewItem = new RadTreeViewItem();

oRadTreeViewItem.Header = "Name";

oRadTreeViewItem.IsEditable = true;

oRadTreeViewItem.PreviewEditStarted += radTreeView_PreviewEditStarted;

oRadTreeViewItem.Edited += DataViewExplorerTree_Edited;

oRadTreeViewItem.EditStarted += radTreeView_EditStarted;

DataViewExplorerTree.Items.Add(oRadTreeViewItem);

I use a context menu to edit the name of tree node using GetItemByPath to find the node



RadTreeViewItem oRadTreeViewItem = DataViewExplorerTree.GetItemByPath("Path of the item");

The item put's in edit mode but loss the header content. it's turn in Edit mode with empty content.

I try to catch radTreeView_EditStarted and radTreeView_PreviewEditStarted in order to rewrite the original header text. But only DataViewExplorerTree_Edited is fired when edit ends. Also trying to set focus to the edit box, but without success (tree is inside a dockpane)

private void DataViewExplorerTree_Edited(object sender, Telerik.Windows.Controls.RadTreeViewItemEditedEventArgs e)

{

RadTreeViewItem targetItem = e.Source as RadTreeViewItem;

// (e.Source as RadTreeViewItem).IsInEditMode = false;

//(e.Source as RadTreeViewItem).Background = new SolidColorBrush(Colors.Red);

}

private void radTreeView_PreviewEditStarted(object sender, Telerik.Windows.Controls.RadTreeViewItemEditedEventArgs e)

{

RadTreeViewItem targetItem = e.Source as RadTreeViewItem;

}

private void radTreeView_EditStarted(object sender, Telerik.Windows.Controls.RadTreeViewItemEditedEventArgs e)

{

RadTreeViewItem targetItem = e.Source as RadTreeViewItem;

}

I try to use

oRadTreeViewItem.IsInEditMode = true;

or

oRadTreeViewItem.BeginEdit(); (ALWAYS return false)

to start to edit node only first runs, the second always return me false.

Any ideas?

Thanks in advance.

TreeView

answered on 25 Jan 2011

1 answer

224 views

Remove the Highlighting from the parent node

Hi,

I have have a 2 level Treeview say country and its state. I dont want to highlight the parent node that is country on mouseover.Please let me know how to remove that default highlighting

-Regards,
Prajin

TreeView

answered on 25 Jan 2011

6 answers

794 views

Basic ResizeMode=ResizeMode.CanResizeWithGrip doesn't seem to work

I'm not getting any kind of resize grip in the bottom right corner of the window as the ResizeMode property description says:

ResizeMode.CanresizeWithGrip - "A window can be resized. The Minimize and Maximize buttons are both shown and enabled. A resize-grip appears in the bottom right corner of the window."

No such grip appears anywhere.

Here are my RadWindow settings:

   window.Content = myContent;
   window.Header = "myContent Header";
   window.CanMove = true;
   window.ResizeMode = ResizeMode.CanResizeWithGrip;
   window.CanClose = false;
   window.WindowStartupLocation = WindowStartupLocation.CenterScreen;
   window.Width = 400;
   window.Height = 300;
   window.Show();

My Telerik.Windows.Controls dll version is: 2010.1.603.35

Am I doing something wrong?

Window

answered on 25 Jan 2011

1 answer

130 views

Location in Polygon

Hello,

I wonder if there is a possibility to get all objects of an information layer which are contained within a specified polygon (geo coordinates).
There is a method "InformationLayer.GetElementsInRectangle" wich is almost what we need.

best regards

Map

answered on 25 Jan 2011

3 answers

334 views

Template and theme to TileViewItem

Hi,

I'm trying to set a template and the Expression_Dark theme to a tileviewitem, but I don't understand how to set both of them. I thought setting the template theme and then set this template to the tileviewitem, but I guess I don't set the theme to the template correctly. What is the right way of doing this?
I'll appreciate if you could provide me the needed lines of code.

Thank you

TileView

answered on 24 Jan 2011

1 answer

108 views

How to make RadPanelBar expand and collapse more slowly?

I am using a RadPanelBar control, and when RadPanelBar expands and collapses, it run very fast. How to adjust the speed of RadPanelBar expand and collapse?

PanelBar

answered on 24 Jan 2011

1 answer

177 views

TimePicker Column

I have a DataGrid that i have a TimePicker column in. I manipulated the sample custom column to just include a TimePicker element. It works fine except for when the element tries to validate the input selected. I have bound it to a TimeSpan item, but it gives me the validation error "Object of System.DateTime cannot be converted to TimeSpan". So im unsure where to bind the TimeSpan item to get the selected DateTime.TimeOfDay??

<telerik:RadGridView AutoGenerateColumns="False" NewRowStyle="{StaticResource NewRowStyle}" RowStyle="{StaticResource RowStyle}" Foreground="White" HorizontalGridLinesBrush="White" Margin="10,10,210,22" Name="groupGrid" SelectionMode="Single" SelectionUnit="FullRow" VerticalGridLinesBrush="White" SelectionChanged="groupGrid_SelectionChanged" CellEditEnded="groupGrid_CellEditEnding" RowIndicatorVisibility="Collapsed" ShowGroupPanel="False" ShowInsertRow="True" RowEditEnded="groupGrid_RowEditEnded">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="Task Name: " DataMemberBinding="{Binding Name}" />

<telerik:GridViewDataColumn Header="Description: " DataMemberBinding="{Binding Description}" />

<telerik:GridViewDataColumn Header="Solution: " DataMemberBinding="{Binding Solution}" />

<my:TimePickerColumn DataMemberBinding="{Binding StartTime}" Header="Start Time" TimeInterval="0:30:0"/>

<telerik:GridViewDataColumn Header="End Time: " DataMemberBinding="{Binding EndTime}" />

<telerik:GridViewDataColumn Header="Elapsed:" UniqueName="Elapsed" DataMemberBinding="{Binding ElapsedTime}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

public class TimePickerColumn : GridViewBoundColumnBase

{

public TimeSpan TimeInterval

{

get

{

return (TimeSpan)GetValue(TimeIntervalProperty);

}

set

{

SetValue(TimeIntervalProperty, value);

}

public static readonly DependencyProperty TimeIntervalProperty = DependencyProperty.Register("TimeInterval", typeof(TimeSpan), typeof(TimePickerColumn), new PropertyMetadata(TimeSpan.FromHours(1d)));

public override FrameworkElement CreateCellEditElement(GridViewCell cell, object dataItem)

{

this.BindingTarget = RadTimePicker.SelectedValueProperty;

RadTimePicker picker = new RadTimePicker();

picker.IsTooltipEnabled = false;

picker.TimeInterval = this.TimeInterval;

picker.SetBinding(this.BindingTarget, this.CreateValueBinding());

return picker;

}

public override object GetNewValueFromEditor(object editor)

{

RadTimePicker picker = editor as RadTimePicker;

if (picker != null)

{

picker.DateTimeText = picker.SelectedTime.Value.ToString();

}

return base.GetNewValueFromEditor(editor);

}

private Binding CreateValueBinding()

{

Binding valueBinding = new Binding();

valueBinding.Mode = BindingMode.TwoWay;

valueBinding.NotifyOnValidationError = true;

valueBinding.ValidatesOnExceptions = true;

valueBinding.UpdateSourceTrigger = UpdateSourceTrigger.Explicit;

valueBinding.Path = new PropertyPath(this.DataMemberBinding.Path.Path);

return valueBinding;

}

GridView

answered on 24 Jan 2011

1 answer

491 views

Binding cell with RelativeSource FindAncestor

Good day,

I am using RadGridView control using 2009 Q2 version of Telerik. And i have the following problem.

I am using bindings for having some control on some behavior into the Grid. My idea is, binding the column to a property, set unable and disable the checkbox we have in the column. For that i use RelativeSource FindAncestor

<telerik:GridViewDataColumn UniqueName="List" IsFilterable="False" Width="100">

<telerik:GridViewColumn.HeaderCellStyle>

<Style TargetType="telerik:GridViewHeaderCell">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerik:GridViewHeaderCell">

<StackPanel Orientation="Vertical">

<TextBlock Text="Edit" HorizontalAlignment="Center"></TextBlock>

<CheckBox x:Name="AllEdited" HorizontalAlignment="Center" VerticalAlignment="Center" Click="AllEdited_Click" Validation.ErrorTemplate="{x:Null}" IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Grid}}, Path=DataContext.EditMode}"></CheckBox>

</StackPanel>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:GridViewColumn.HeaderCellStyle>

<telerik:GridViewColumn.CellStyle>

<Style TargetType="telerikGridView:GridViewCell">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerikGridView:GridViewCell">

<CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="{Binding CuestionarioVisible}" Validation.ErrorTemplate="{x:Null}" IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Grid}}, Path=DataContext.EditMode}"></CheckBox>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:GridViewColumn.CellStyle>

</telerik:GridViewDataColumn>

As you can see in the code, I have binding on "IsEnabled" property for allowing or not to check on the checkboxes which was edited or not.
The binding works great in the header but, it ignores in the cell!

Any ideas? Why is that happening? Any solution for making the cells work in the same way as the header?

Thanks in advance.

Regards,
Alvaro

GridView

answered on 24 Jan 2011