Questions on UI for WPF Forum

7 answers

656 views

Setting time range for time selector

Hi,

How can I set the time range for time selector in RadTimePicker?

User need to select time between 06:30 - 09:00 with time range 10min

Without that range, time selector looks quite messy

I tried to use DisplayDateStart and -end properties but it did not help

FrameworkElementFactory spFactory = new FrameworkElementFactory(typeof(Telerik.Windows.Controls.RadTimePicker));

spFactory.Name = "factory";

spFactory.SetValue(Telerik.Windows.Controls.RadTimePicker.TimeIntervalProperty, new TimeSpan(0, 10, 0));

spFactory.SetValue(Telerik.Windows.Controls.RadTimePicker.DisplayDateStartProperty, new DateTime() + new TimeSpan(6, 30, 0));

spFactory.SetValue(Telerik.Windows.Controls.RadTimePicker.DisplayDateEndProperty, new DateTime() + new TimeSpan(9, 0, 0));

template.VisualTree = spFactory;

template.Seal();

Regards,

Auvo

DateTimePicker

answered on 05 Aug 2016

1 answer

182 views

Access Window of modal PropertyGrid.Editor

I'm looking at your demo for the PropertyGrid Editor Attribute. MapEditorControl.xaml is a UserControl which is set as an editor in Employee.cs using

        [Telerik.Windows.Controls.Data.PropertyGrid.Editor(typeof(MapEditorControl), "Location", Telerik.Windows.Controls.Data.PropertyGrid.EditorStyle.Modal),]

        public string Location

        {

            get

            {

                return this.location;

            }

            set

            {

                if (this.location != value)

                {

                    this.location = value;

                    this.OnPropertyChanged("Location");

                }

            }

        }

However, when you run the demo the UserControl MapEditorControl sits inside another Window (see attached image). How do I access this window to set header text, icons and themes?

Based on the demo it seems I can only access the UserControl and so any implicit themes will only work from here onward and not on it's parent window.

Thanks

PropertyGrid

answered on 05 Aug 2016

1 answer

110 views

[Solved] highlight several columns in one row

Hi,

i use a RadGridView, bound to an ObservableCollection<KennzahlenViewModel>. To show diviasions of different columns i use some GridViewExpressionColumns in one row. Now i want to set the forecolor red if the result is less than zero.

How can i do this?

Thanks
Best Regards

GridView

answered on 05 Aug 2016

0 answers

123 views

Changing RadMenuItem Background

Hi, I currently have a contextmenu with multiple menuitems. I'm looking to override the current menuitem styles and display a different background colour upon mouse over. May I ask how abouts do I do that?

ContextMenu

asked on 04 Aug 2016

11 answers

156 views

Bug? Provider order

Hi,
I am currently using the map control with two TileProviders (bing and a custom one).
The problem is that thenever I change the TiledMapSource, the layer of this provider goes to the background.
How can I fix the order of the layers?

For further information please habe a look at the associated post: http://www.telerik.com/community/forums/wpf/map/changing-the-map-toolbar.aspx

Regards
Thomas

Map

answered on 04 Aug 2016

5 answers

493 views

Error: “This operation is valid only on elements that have this template applied”

I have a C# WPF application that contains a user control:

<UserControl

x:Name="payrollEntryControl"

x:Class="MyNamespace.PayrollEntryControl"

[...]

>

[...]

</UserControl>

Within the user control, I have a Telerik RadDataForm:

<telerik:RadDataForm

x:Name="payrollAddForm"

CurrentItem="[...]"

EditTemplate="{StaticResource myEditTemplate}"

/>

The template contains a Telerik RadGridView and a Button:

<telerik:RadGridView Grid.Row="0" Grid.Column="0"

x:Name="workGridView"

[...]

ItemsSource="{Binding [...]}"

>

<telerik:RadGridView.Columns>

[...]

</telerik:RadGridView.Columns>

</telerik:RadGridView>

<Button Grid.Row="1" Grid.Column="0"

Command="{Binding addWorkCommand, ElementName=payrollEntryControl}"

>

Add

</Button>

I want the command to do is call BeginInsert() on workGridView. But I can't seem to get access to workGridView.

My command, so far:

private DelegateCommand addWorkCommand_ = null;

public DelegateCommand addWorkCommand

{

get

{

if (this.addWorkCommand_ == null)

{

this.addWorkCommand_ = new DelegateCommand(

o => addWork(o)

);

}

return this.addWorkCommand_;

}

private void addWork(object o)

{

var addForm = this.payrollAddForm;

var editTemplate = addForm.EditTemplate;

var workGrid = editTemplate.FindName("workGridView", addForm);

}

My problem? When I make the call to editTemplate.FindName(), I get an exception:

This operation is valid only on elements that have this template applied.

I don't understand. I'm getting the template from the form. How can it not be applied?

DataForm

answered on 04 Aug 2016

5 answers

1.4K+ views

Removing the header from GroupBox

I'm trying to have a Groupbox with a list of other controls, very similar to a login form. I don't need a header, so I set the property called header with an empty string. As you see in the picture, there is a gap in the border - look at where the red arrow points to. How can I fix this, so there is no gap.

I'm also open to any solution where by I can achieve some other control to achieve what I want. I want to group a list of controls and have a background. Can I use a grid and setting the border style and background and achieve the same?

General Discussions

answered on 04 Aug 2016

5 answers

206 views

Rendering GridView seems to clear saved SelectedItems setting

Hi,

I'm having persistent issues with the grid when I try to set a saved list of selected rows when loading data into the grid in my WPF project.

The basic logic is as follows:

1. Load the ViewModel, get saved data and populate an observable collection for the ItemsSource property on the grid.

2. Set the SelectedItems property in the same procedure

3. Explicitly call the property changed event for the selected items collection.

I have implemented a custom behaviour to allow the RadGridView to use the Extended selection option and retain all selected items, and it works perfectly in this project and others, when setting the collection in the UI and binding to the collection in the ViewModel.

I put an OnCollectionChanged event onto my selected items collection, and while it gets called as expected when I set the items, it also seems to get called after the grid itself is rendered, which causes the saved selection to be lost.

If I use only a single item, i.e. SelectedItem, this does not get lost, and if I set SelectedItem by using the first line in the collection before setting SelectedItems collection itself, the UI retains the first one, but wipes the others.

I have tried a number of ways to work around this, including trying to fire an event after the selection is overridden but it's proving very tricky to get the right event, and anyway this behaviour should surely not be happening in the first place.

I am attaching a sample project which demonstrates a simpler version of this scenario, with the same problems.

Please advise.

GridView

answered on 04 Aug 2016

2 answers

235 views

query on offline map

Hi,

I am trying to use Telerik RadMap (OpenStreet Map) in offline mode(i.e without internet acess).For this purpose I am using Easy Openstreet Map downloader.So

I have some below queries.

1) Can we get whole world map as image tiles upto street level zooming by this downloader and integrate the same with radmap or there is some better approach to use offline map(upto street level zooming is a must) ?

2) How can we search a location by name on radmap (offline mode)[on open street map provider] ?

3) How to add a place i.e if we want to name a place not marked or already marked on radmap(openstreet map) and it will be permanently stored on the map tiles?

Map

answered on 04 Aug 2016

1 answer

331 views

Multiple charts share axes

I have a requirement for displaying multiple charts side by side and share a common axis. Do you have any hints how I can implement this? I know I can display multiple series within a same chart. But in my case, the series should be laid out side by side, I think I should use multiple charts but somehow tie them to a common axis.

I attached a mock image to illustrate this problem.

ChartView

answered on 04 Aug 2016