Questions on UI for WPF Forum

3 answers

291 views

Hello, a few questions about this feature:

1) Is it possible to show a tooltip on annotations?
2) Is it possible to have a click event (mousedown / mouseup should be fine too) on annotations to do something in response of a click?
3) Is it possible to update the way an annotation looks based on the mouse being over the annotation? I tried with style triggers but it didn't work.

Thanks!

ChartView

answered on 27 Sep 2013

1 answer

111 views

Treeview D&D Tooltip

Hi
I have a draggable treeview and I would like to write on dragvisual content something like "Drop inside <Node Information>".
How can I get the Node information?

I tried something like this but "options" is always null

private Telerik.Windows.Controls.Label dragVisualLabel;

private void OnDragInitialize(object sender, DragInitializeEventArgs args)

{

this.dragVisualLabel = new Telerik.Windows.Controls.Label() { ContentTemplate = RootGrid.Resources["ItemTemplate"] as DataTemplate, Content = "" };

args.DragVisual = this.dragVisualLabel;

}

private void OnGiveFeedback(object sender, Telerik.Windows.DragDrop.GiveFeedbackEventArgs args)

{

if (args.Effects == DragDropEffects.Move)

{

args.UseDefaultCursors = false;

args.SetCursor(Cursors.Hand);

var options = DragDropPayloadManager.GetDataFromObject(args.OriginalSource, TreeViewDragDropOptions.Key) as TreeViewDragDropOptions;

if (options != null)

{

var dragVisual = options.DragVisual as TreeViewDragVisual;

if (dragVisual != null)

{

var classModel = (options.DropTargetItem).DataContext as ClassObjectModel;

if (classModel != null)

{

this.dragVisualLabel.Content = string.Format("Drop inside {0} - {1}", classModel.Class.Code, classModel.Class.Description);

}

// this.dragVisualLabel.Background = new SolidColorBrush(Colors.Yellow);

}

else if (args.Effects == DragDropEffects.None)

{

args.UseDefaultCursors = false;

args.SetCursor(Cursors.None);

// this.dragVisualLabel.Background = new SolidColorBrush(Colors.Red);

}

else

{

args.UseDefaultCursors = true;

// this.dragVisualLabel.Background = new SolidColorBrush(Colors.Green);

}

args.Handled = true;

}

Thanks

DragAndDrop

answered on 27 Sep 2013

1 answer

139 views

Needle Tooltip

I'm trying to show a tooltip in the needle in order to show the selected value.

I have this code in the xaml file:

<telerik:RadRadialGauge Name="RadialGaugeDemo" HorizontalAlignment="Left" Margin="961,30,0,0" Grid.Row="1" VerticalAlignment="Top" Height="255" Width="274">

<telerik:RadialScale Name="scale"

LabelRotationMode="None"

IsInteractive="True"

MajorTickOffset="-0.015*"

MiddleTickOffset="-0.015*"

MinorTickOffset="-0.015*" Min="0" Max="120">

<telerik:RadialScale.Indicators>

<telerik:Needle Name="needle" Value="50"/>

<telerik:Pinpoint />

</telerik:RadialScale.Indicators>

</telerik:RadialScale>

</telerik:RadRadialGauge>

And I wanted to add the tooltip format in the code behind file:

needle.TooltipFormat = "{0:F2}";

But when I run the program, it only shows a blank square, as you can see in the image that I have attached.
I think that I am missing something.

I saw this Page and i tried this code:

<telerik:Needle x:Name="needle"

IsAnimated="True"

Value="{Binding Value}" TooltipFormat="No: {0}"/>

But it doesn't work either.

Regards,

Alberto Martinez

Gauges

answered on 27 Sep 2013

2 answers

101 views

Variable itemsource

Hello,

I want to make a radgridview which columns and rows depends of the selected items in two combo boxes. Right now I'm doing that by creating a data table each time the selection changes and assigning it to the radgridview itemsource... It's woks fine with few elements but if one of the selection (for example, cities) has a lot of columns the grid stops working.... Is there a better way to implement this?

I've attached you an image of what I have for better understanding
Thanks!

GridView

answered on 27 Sep 2013

1 answer

128 views

DataFormDataField size

Hello,
I want Fields of RadDataForm (AutoGenerateFields = "true") to satisfy the conditions:
1. Width of field is not depended on the length of the string in this field.
2.All labels have the equal width (= max {with = auto})

equal

DataForm

answered on 27 Sep 2013

1 answer

122 views

Compare properties

Hello everyone,

I'm posting in General Discussions because I'm not sure which control to use.

I want to display properties of two objects side by side for comparison. Is it possible to add more columns to PropertyGrid? That would be perfect for me.

I cannot use GridView because it displays records in rows (I want them in column like in PropertyGrid). Is there a way to swap rows with columns in GridView or specify orientation? Just like in StackPanel?

I'm open to any other suggestions as well.

Thanks,
Umar

General Discussions

answered on 27 Sep 2013

5 answers

1.4K+ views

Double click on grid

Hello,

I've got double click on a task on the right hand side working, but cannot seem to be able to double click on a row on the grid on the left hand side?

Any pointers?

thanks

GanttView

answered on 26 Sep 2013

1 answer

244 views

Filter by wildcard in gridview

Hi Telerik team,

I want to filter columns by specifying wildcards. Is there any way to specify the wildcard as bellow:
columnFilter.FieldFilter.Filter1.Value=cell.value;

I have another query regarding the performance in gridview. I had binded the grid to a datatable with 100 columns X 10000 rows. When i apply programmatic filtering or sorting, the grid lags. I had enabled the virtualization in the grid, but it didnt had any improvement.

Is there any other way to filter the columns in the grid other than specified in your help . i had used IColumnFilterDescriptor , but its slow. Is there any other way to filter .

Following are the system environment:
WPF version: 4.5
OS: windows 7
exact version of the Telerik product: 2013 Q2 SP1
preferred programming language : C#

Regards
Nitin

GridView

answered on 26 Sep 2013

13 answers

229 views

EntitySetName with inheritance

Hello,

We work on a project with EF5 (DbContext) and MVVM WPF Light Toolkit.
So, to load data on the RadGridView, we try to use QueryableEntityCollectionView, instead of RadEntityFrameworkDataSource, it seems to be the good approach ?

But when we want to include graph object when we load entities (with relatedObjectsToInclude in the ctor) when have a problem with the inheritance of the model because we have 2 levels. The message is :

An include path specified is not valid. The EntityType 'OPY.Entities.Sinistre' does not declare a navigation property with the name 'Agent'.

The model :

[Sinistre]

|

[SinistrePS]

[----------]

[ AgentId ] ---------- [Agent]

|

[Others class]

The code :

this.SinistreDataView = new QueryableEntityCollectionView<SinistrePS>(

((IObjectContextAdapter)_bdd).ObjectContext, "Sinistres", new List<string>() { "Agent" });

As you can see, we want to load "SinitrePS" with all derived but we are forced to use "Sinistres" (top level) as entitySetName because the SinistrePS class don't have it own entityset on the model.

How can we do ?
Thx

EntityFrameworkDataSource

answered on 26 Sep 2013

2 answers

205 views

TabIndex Issue

Hi

I am facing tab index ordering issue. See the screenshot. When tab key pressed, i want to navigate like 1,2,3.......18,19,20. I have also included a sample project code here:

<telerik:RadGridView x:Name="radGridView" Grid.Row="1" AutoGenerateColumns="False"

AutoExpandGroups="True"

ColumnWidth="100">

<telerik:RadGridView.Columns>