Questions on UI for WPF Forum

8 answers

309 views

Hi, how can I programatically add child tables and relations (hierarchies) to a WPF RadGridView? Can I add more than one level of hierarchies?

I need to create something like a master/details view in my RadGridView, but every detail can have its own details as well (that's why I need more that one level of hierarchies).

Thanks a lot.

GridView

answered on 20 Sep 2017

14 answers

481 views

radGridView Itemsource issue in design mode

Hi,
I have derived a custom class from the RadGridView to expose some dependency properties, and in the XAML when I create a control and binding its ItemSource to my viewmodel, then in the design view I'm getting the below error, and due to which the design view is not appearing, can you please help me:

Error 119 The local property "ItemsSource" can only be applied to types that are derived from "DataControl".

Thanks.

Gaurav Gupta

GridView

answered on 20 Sep 2017

3 answers

678 views

Should GridView exit edit mode when user clicks on read only cell?

Hi,

I am using Q3 2015.

I have editable RadGridView with two rows: Name and Count.

Name is editable.

Count is readonly.

When user clicks on "new row indicator" new row is created and focus is set to Name cell.

User enters text in name cell and clicks on "Count" cell.

My problem is that row remains in edit mode, "new row indicator" is not visible. User is confused because he thinks that edit is finished and there is no way to add another row.

To finish row edit user have to use tab key or click on any other control. Is there a way to end edit mode when any of readonly cells are focused?

My grid configuration:

<telerik:RadGridView

x:Name="DocumentPositionsGridView"

Style="{StaticResource EditableGridViewStyle}"

SelectionMode="Extended"

ItemsSource="{Binding Data, ValidatesOnDataErrors=True, NotifyOnValidationError=True}"

ValidatesOnDataErrors="InViewMode"

AddingNewDataItem="DocumentPositionsGridView_AddingNewDataItem"

CellEditEnded="DocumentPositionsGridView_CellEditEnded"

CanUserDeleteRows="{Binding CanEditDocumentPositions}"

CanUserInsertRows="{Binding CanEditDocumentPositions}"

NewRowPosition="{Binding CanEditDocumentPositions, Converter={StaticResource BooleanToGridViewNewRowPositionConverter}}"

ShowColumnFooters="True"

>

<Style x:Key="EditableGridViewStyle" TargetType="{x:Type telerik:RadGridView}" BasedOn="{StaticResource RadGridViewStyle}">

<Setter Property="ShowGroupPanel" Value="False"/>

<Setter Property="AutoGenerateColumns" Value="False"/>

<Setter Property="IsFilteringAllowed" Value="False"/>

<Setter Property="GroupRenderMode" Value="Flat"/>

<Setter Property="NewRowPosition" Value="Bottom"/>

</Style>

GridView

answered on 20 Sep 2017

3 answers

156 views

Create Appointment highlight item size

Hey,

In my project, I'm using a ScheduleView to display all scheduled appointments within a range of days. Objective is to find an empty slot for a new appointment. However, I already know how long will be the new appointment and I would like to highlight the appropriate time range on mouse over.

The default behavior for the schedule view is to highlight only a single time slot on mouse over (using MouseOverHighlightStyle). In my case, I would like to display the full appointment length instead.

Moreover, if possible, I would like to change the background color of the highlight item if it overlaps another booking.

See attached file for basic mockups of expected behavior.

Regards,

ScheduleView

answered on 19 Sep 2017

2 answers

624 views

Disable RadComboBox items using Converter

Hi,

I am trying to disable 2-3 options from my combo box using converter. I do not want to use IsEnabled property as my data is dynamically populated. Therefore, I have created a converter for the same.

However, when I am using <Style.Triggers> my combo box is coming blank.

PFB the xaml code used.

<ScrollViewer.Resources>
<converters:ComboboxDisableConverter x:Key="itemDisableconverter"/>
<Style x:Key="EnableStyle" TargetType="telerik:RadComboBoxItem">
<Setter Property="IsEnabled" Value="True"/>
</Style>
<Style x:Key="DisableStyle" TargetType="telerik:RadComboBoxItem">
<Setter Property="IsEnabled" Value="False"/>
</Style>

<telerik:RadComboBox Grid.Row="0" Grid.Column="1" Name="MeterTypes"
VerticalContentAlignment="Center"
IsReadOnly="False"
DisplayMemberPath="Name"
ClearSelectionButtonVisibility="Visible"
ItemsSource="{Binding MeterTypes}">


<telerik:RadComboBox.ItemContainerStyle>
<Style TargetType="{x:Type telerik:RadComboBoxItem}">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Text,
RelativeSource={RelativeSource Self}, Converter={StaticResource itemDisableconverter}, ConverterParameter={StaticResource itemDisableconverter}}" Value="true">
<Setter Property="IsEnabled" Value="False"/>
</DataTrigger>
</Style.Triggers>
<Setter Property="IsEnabled" Value="True"/>
</Style>
</telerik:RadComboBox.ItemContainerStyle>

Instead when I am using the commented SelectedItem, my ComboBox is populated but my options are not greyed out.

Can you please help me here.

Thanks.

ComboBox

answered on 19 Sep 2017

8 answers

411 views

RadAutoCompleteBox in DataGridTemplateColumn

Hi!

There seems to be a bug in RadAutoCompleteBox displayed in DataGridTemplateColumns. While editing the DataGrid row the Texts of SelectedItems aren't visible but on lost focus they are.

namespace WpfApplication.ViewModels

{

public class ListViewModel

{

public ListViewModel()

{

this.ViewModels = new ObservableCollection<ViewModel>() { new ViewModel() };

}

public ObservableCollection<ViewModel> ViewModels { get; set; }

}

public class ViewModel

{

public ObservableCollection<Country> AvailableCountries { get; set; }

public ObservableCollection<string> SelectedCountries { get; set; }

public ViewModel()

{

this.AvailableCountries = new ObservableCollection<Country>()

{

new Country() { Name = "Australia" , Capital = "Canberra" },

new Country() { Name = "Bulgaria", Capital = "Sofia" },

new Country() { Name = "Canada" , Capital = "Ottawa" },

new Country() { Name = "Denmark" , Capital = "Copenhagen" },

new Country() { Name = "France" , Capital = "Paris" },

new Country() { Name = "Germany" , Capital = "Berlin" },

new Country() { Name = "India" , Capital = "New Delhi" },

new Country() { Name = "Italy" , Capital = "Rome" },

new Country() { Name = "Norway" , Capital = "Oslo" },

new Country() { Name = "Russia" , Capital = "Moscow" },

new Country() { Name = "Spain " , Capital = "Madrid" },

new Country() { Name = "United Kingdom" , Capital = "London" },

new Country() { Name = "United States" , Capital = "Washington, D.C." },

};

this.SelectedCountries = new ObservableCollection<string>();

}

<Window x:Class="WpfApplication.MainWindow"

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

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

xmlns:local="clr-namespace:WpfApplication.ViewModels"

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

Title="MainWindow"

Width="525"

Height="350">

<Window.Resources>

<local:ListViewModel x:Key="ListViewModel" />

</Window.Resources>

<Grid>

<DataGrid AutoGenerateColumns="False" ItemsSource="{Binding ViewModels, Source={StaticResource ListViewModel}}">

<DataGrid.Columns>

<DataGridTemplateColumn Width="*">

<DataGridTemplateColumn.CellTemplate>

<DataTemplate>

<telerik:RadAutoCompleteBox DisplayMemberPath="Name"

ItemsSource="{Binding AvailableCountries}"

SelectedItems="{Binding SelectedCountries}" />

</DataTemplate>

</DataGridTemplateColumn.CellTemplate>

</DataGridTemplateColumn>

</DataGrid.Columns>

</DataGrid>

</Grid>

</Window>

Could you check that please?

AutoCompleteBox

answered on 19 Sep 2017

2 answers

178 views

How to sort multiple columns without using SHIFT press key

Hi ,

Is there any option to perform Multiple column sorting in Radgridview without using SHIFT Press?

If i select column 'A' to sort then in a signle click i need to sort Column 'B' . Right now Radgridview by pressing SHIFT key i can perform the multiple column sorting.But I need to do multiple column sorting in a single click on second column.

Thanks,
Ashwin.

GridView

answered on 15 Sep 2017

5 answers

152 views

Hide LayoutModeSelectorName on the RadRichTextBoxStatusBar

I have searched high an low and cannot figure out how to Hide the LayoutModeSelectorName on the RadRichTextBoxStatusBar. I do not want my users switching to a different word layout in my application, how can I do this?

Thanks

RichTextBox

answered on 15 Sep 2017

2 answers

103 views

Weird synchronizing of ResourceTypesSource between two instances of RadScheduleView

Hi,

We have scenario, where we need two RadScheduleViews for user to be able to use drag and drop between them.
They are both bound to the same AppointmentsSource collection but each has different ResourceTypesSource collection and here is the issue: Both these RadScheduleViews instances behave like they had the same ResourceTypesSource collection.
So it seems to me like some strange bug, especially when I am moving this functionality from Silverlight to WPF and it works OK in the Silverlight version.

So is it possible to fix this problem?

This is quite a follow up of this thread:
http://www.telerik.com/forums/freezing-row-in-timeline-view-in-radscheduleview

We are using latest version of Telerik controls.

I have prepared a MCV example where it is possible to see it, it is only not available to attach it here, but I can send it somehow.

Thank you,
Jiri

ScheduleView