Questions on UI for WPF Forum

1 answer

479 views

I have an eventtocommandbehavior binding as shown below to deal with the EditEnded event of the raddataform which I am using as a row details editor in my gridview. I get the call in my viewmodel from the command with the args, but they are kinda useless.
How to tell what row was being edited?
Also, if the user hits the cancel button how do I prevent the gridview from being updated? I am beginning to wonder what the raddataform buys me.
My current dataform uses ONLY custom fields. Couldn't I just get rid of the raddataform and use a regular grid with the controls I want as a rowdetailstemplate? If I did that, how could I wire up the OnRowEditEnded event of the gridview to a command associated with a button in my rowdetails editor? For that matter, how to wire it up to the raddataform if I have to use it.
I hope I'm making sense here.

Any help would be great.

Thanks ... Ed

<telerik:RadDataForm CurrentItem="{Binding}" CommandButtonsVisibility="All">

<telerik:EventToCommandBehavior.EventBindings>

<telerik:EventBinding Command="{Binding DataContext.EditEndedCommand, RelativeSource={RelativeSource AncestorType=telerik:RadGridView}}" EventName="EditEnded" PassEventArgsToCommand="True"/>

</telerik:EventToCommandBehavior.EventBindings>

</telerik:RadDataForm>

GridView

answered on 05 Dec 2016

2 answers

292 views

Floating Window in combination with MVVM

Hello,

i'm using the Telerik Dock Controls.

In order to mvvm i'm using the binding to the Property PanesSource.

I Add a login Screeen at startup and want to show it in the center of the application and not docked to any of my SplitContainers.

The XAML head of the RadPane looks as followed:

<telerik:RadPane x:Class="ProductLifecycle.Frontend.UI.UserControls.LoginPage"

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

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

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:local="clr-namespace:ProductLifecycle.Frontend.UI.UserControls"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:viewModels="clr-namespace:ProductLifecycle.Frontend.ViewModels"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="300" Header="{Binding Title}"

d:DataContext="{d:DesignInstance viewModels:LoginPage, IsDesignTimeCreatable=False}"

telerik:RadDocking.DockState="FloatingOnly" telerik:RadDocking.FloatingSize="300,200" CanUserClose="False" CanUserPin="False" CanDockInDocumentHost="False" >

Everytime when i add this Control to my Binded Collection this window appears in the left of the docking control.

How can i start this window as floating window in front of my application?

Thanks,

Michael

Docking

answered on 05 Dec 2016

6 answers

116 views

MetadataType support

Dose the DataForm looking on the MetadataTypeAttributes for validations ?

I hava a wcf data service, that create a auto generated class, i added a partial class with MetadataType, but the dataform validation ignore the settings

[MetadataType(typeof(Person.Metadata))]
public partial class Person
{
internal sealed class Metadata
{
[Required]
public string FirstName { get; set; }
}
}

DataForm

answered on 03 Dec 2016

1 answer

91 views

using EditTemplateSelector

Hi to all,

I'm trying to use an EditTemplateSelector, but I have problem to retrieve DataContext of RadWindow, my RadWindow has x:Name="radWindow", its relative ViewModel exposes a List<T> collection called StatiCertificato, it seems that it not found it.

When selector use campoEditTesto it works correctly and it works correclty with campoEditData also, when it uses campoEditStato or campoEditDecisione show me correctly RadComboBox but without items. It checked that my collection are full.

Am I using a wrong approach for binding into ItemSource property? If yes, what's wrong?

<templateSelector:ValoreEditTemplateSelector x:Key="campiEditTemplateSelector">

<templateSelector:ValoreEditTemplateSelector.campoEditTesto>

<DataTemplate>

<TextBox Text="{Binding Valore,Mode=TwoWay}" />

</DataTemplate>

</templateSelector:ValoreEditTemplateSelector.campoEditTesto>

<templateSelector:ValoreEditTemplateSelector.campoEditStato>

<DataTemplate>

<telerik:RadComboBox ItemsSource="{Binding StatiCertificato, ElementName=radWindow}"

SelectedItem="{Binding StatoCertificatoSelezionato,Mode=TwoWay}"

DisplayMemberPath="Descrizione" SelectedValuePath="Valore"/>

</DataTemplate>

</templateSelector:ValoreEditTemplateSelector.campoEditStato>

<templateSelector:ValoreEditTemplateSelector.campoEditDecisione>

<DataTemplate>

<telerik:RadComboBox ItemsSource="{Binding DecisioniCertificato, ElementName=radWindow}"

SelectedItem="{Binding DecisioneCertificatoSelezionato,Mode=TwoWay}"

DisplayMemberPath="Descrizione" SelectedValuePath="Valore"/>

</DataTemplate>

</templateSelector:ValoreEditTemplateSelector.campoEditDecisione>

<templateSelector:ValoreEditTemplateSelector.campoEditData>

<DataTemplate>

<telerik:RadDatePicker SelectedValue="{Binding Valore, Mode=TwoWay, Converter={StaticResource editDateConverter}}"/>

</DataTemplate>

</templateSelector:ValoreEditTemplateSelector.campoEditData>

</templateSelector:ValoreEditTemplateSelector>

GridView

answered on 02 Dec 2016

1 answer

85 views

Change Dealline color in Telerik Gantt view

Hello,

I want to Change Deadline forecolor to Blue of Telerik Gantt view. Now it is in Red color.

Please help me.

Thanks in advance

General Discussions

answered on 02 Dec 2016

1 answer

570 views

On Mouse wheel event, popup handled and parent control should scroll.

Hi,

I am using RadAutocompletebox in scrollable size window. Window has vertical scroll and autocompletebox is at center of window. I have typed a text in completebox and suggestion popup appears and my mouse is on textbox area.Now, I have used mouse wheel event. When i use mouse wheel, popup scroll accordingly to up and down.

My concern is that popup should remain at one place but window can scroll accordingly.

AutoCompleteBox

answered on 02 Dec 2016

1 answer

143 views

RadGridView Asynch Loading

Hi,

So when using an application like SQL Server Management Studio I can run a query (let's say select * from customer although my queries are very user driven with a few joins mostly the SQL is generated dynamically) and the results grid will start populating rows extremely quickly until the full set is returned.

I want to emulate this behavior using a RadGridView (WPF)

I have tried using a data set it takes to long and you don't get that initial feedback of seeing the first rows start flooding in.

Next I tried loading the customers from a data reader and putting each row into an ObservableCollection<Customer> it is way faster and allows the objects in .Net to start being populated even before the query has finished but ultimately the UI was unable to keep up with the reader and froze until the full set was populated.

What would be the best approach to get that fast response of data loading and the user seeing the rows start to appear without locking down the UI Thread of the application?

A typical result set is around 100k records and I can put it in the grid in about 5 seconds using a dataset im hoping to get similar time while showing the user immediate feedback their query is getting results

GridView

answered on 02 Dec 2016

1 answer

106 views

LayoutControlTabGroup

hi ,

I want to scroll the collection of LayoutControlTabGroupItems when i have many Items displayed In the "LayoutControlTabGroup" like "RadTabControl"

so, how to do??

thx

LayoutControl

answered on 02 Dec 2016

4 answers

432 views

UserControl on Tooltip when hover a gridcell

Hello Telerik,

We came across a scenario which we need to add a tooltip containing a UserControl to a tooltip of a grid's cell.

Can you please point me to the right direction?

Thank you

GridView

answered on 02 Dec 2016

5 answers

98 views

Moving with direction key event in edit mode

Hi there,

I'm having trouble moving with direction key in edit mode.
On the spread sheet, I can't move to another cell without two times of esc key event.
Is there any method to move out of a cell with only direction key event?
please reply it.

Spreadsheet

answered on 02 Dec 2016