Questions on UI for WPF Forum

2 answers

190 views

VirtualQueryableCollectionView, EntityFramework and MVVM

Hi to all,

I'm developing a MVVM Application, I have a global context for application, I have a provider class that exposes me a method that returns a List<MyModel>

MyModel is a class that I use internally in application:

My entityframework context (EF5 & FW4.0) exposes MyTable (this table corresponde to MyModel class).

My provider get IQuarable<MyTable> by linq and convert all items in MyModel, then return List<MyModel>.

Now, If I have a lot of records and I have to show all items into ComboBox, I could user VirtualQueryableCollectionView.

But how can I use List<MyModel> to do this? I will get the same result?

Data Virtualization

answered on 03 May 2016

1 answer

135 views

RadScatterSparkline, how to programatically change the size of the points

Hi,

I'm using a RadScatterSparkline object inside a RadTimeBar. It works perfectly but I would like to make the points bigger because some times they are difficult to see (I'm using the RadScatterSparkline in combination with a RadLinearSparline).

Since I'm adding the RadScatterSparkline dynamically I would like to change the size of the points programmatically.

I've tried setting the Height and Width properties but it did not work.

Do you know if this is possible at all? If so, any idea on how to do it?

Many thanks!

Regards.

TimeBar

answered on 03 May 2016

1 answer

116 views

create animation to display TileList

Hello

I want use RadTileList control, but i wish display this similar to windows metro, create animate to display metro.

I am grateful for help..

TileList

answered on 03 May 2016

1 answer

125 views

Editing Excel Export

Hi, I used some excel export code previous posted on a thread. It works great, but I'm wondering if we can intercept midway. I'm looking to add a value on the top row then followed by the chart.

public static void Export(RadGridView grid)

{

const string extension = "xls";

var dialog = new SaveFileDialog

{

DefaultExt = extension,

Filter = String.Format("{1} files (*.{0})|*.{0}|All files (*.*)|*.*", extension, "Excel"),

FilterIndex = 1

};

if (dialog.ShowDialog() != true)

{

return;

}

using (var stream = dialog.OpenFile())

{

var exportOptions = new GridViewExportOptions

{

Format = ExportFormat.ExcelML,

ShowColumnHeaders = true,

ShowColumnFooters = true,

ShowGroupFooters = false,

};

exportOptions.Items = (IEnumerable)grid.ItemsSource;

grid.Export(stream, exportOptions);

}

GridView

answered on 03 May 2016

4 answers

109 views

Changing the selected row colour in the Rad Grid View

I've been trying to change the selected row colour from the default grey to blue. I've been able to change the un-selected row colour, but when I do that the selected row turns to a kinda orange, and I can't change it from there.

Would anyone be able to help work out how to change this?

General Discussions

answered on 03 May 2016

3 answers

274 views

Add small delay before filtering?

We're using RadAutoCompleteBox together with a FilteringBehavior, to filter a very large dataset.

We don't necessarily want to fire the filtering after every key press, because there is no point in that if the user is still typing.

Is there any way to add a small delay, so that the filtering mechanism is only fired if the search text hasn't changed for 500 milliseconds?

AutoCompleteBox

answered on 03 May 2016

1 answer

478 views

How to show/hide icon on tab header

Hello,

I have a RadTabControl which will dynamically add tabitems.

How to show/hide icon on tab header based on user selection in the tab content.

for example:

User filled two textbox, then the check icon will set to show.

if user clear one textbox, then the check icon will set to hide.

Can you help me with this issue?

Thanks,

-Jacky

TabControl

answered on 03 May 2016

1 answer

159 views

Change the color of the selected item

Hello;

I am using Telerik ScheduleView in my projet.

We developped a planning in order to assign responsible any time.

We would like to update the orange color of the selected item (see screenshot1) and set something like in demo (transparent grey ==> Screenshot2).

How can we perform that ?

Thanks for your feedback

ScheduleView

answered on 03 May 2016

5 answers

292 views

Verification using DataAnnotations - Unhanded Exceptions

Hello,

I'm trying to use DataAnnotations to validate fields on my PropertyGrid (which is using AutoGeneratePropertyDefinitions). I used the instructions here as reference:

http://docs.telerik.com/devtools/wpf/controls/radpropertygrid/features/validation#validating-through-dataannotations

...and was able to get pretty far. However, when a property fails validation, I get an Unhandled Exception Error when the ValidationException is thrown. Is there a simple example project someone could provide that is able to use the PropertyGrid w/AutoGeneratePropertyDefinitions, ValidationExceptions & DataAnnotations correctly?

Thank you!

Tyler

PropertyGrid

answered on 03 May 2016

1 answer

264 views

RadGridView with culture ITA but currency ENU

Hi to all,

I'm not understand why if although I setted CurrentCultureInfo "it", I see completely translated my grid (ok), but a column that should show a currency with italian format, it shows currency in english format yet.

My codes in app.cs and column of gridview

private void Application_Startup(object sender, StartupEventArgs e)

{

Thread.CurrentThread.CurrentCulture = new CultureInfo("it");

Thread.CurrentThread.CurrentUICulture = new CultureInfo("it");

<telerik:GridViewDataColumn Header="Cambio" DataMemberBinding="{Binding Cambio, StringFormat=\{0:F4\}}" />

GridView