Questions on UI for WPF Forum

1 answer

149 views

Half Circle Gauges with Numeric Indicator

Hi,
   Do you have any example for Half Circle Gauges with Numeric Indicator?
   I can't find one.
   When tried to do it myself, the digits overrides the arrow indicator. It doesn't look nice.
   Any examples? Any ideas?

Guy.

Gauges

answered on 27 Aug 2010

2 answers

158 views

Update cell validation

Hello,

I have a RadGridView with six columns defined and where the first column is a checkbox. When inserting a new row in this grid the checkbox is checked and one set of column are mandatory to set values. The user can uncheck this checkbox which results in a different set of columns are mandatory to set values. However the cell validation is not updated in the GUI until I leave the tabcontrol och returns to it.

Any ideas how to solve this?

Best regards / Anna

GridView

answered on 27 Aug 2010

1 answer

99 views

Cell template event in rowdetails template telerik grid

Hello,

I have a telerik grid(Grid A) which is binding with the Observablecollection<parentbusinessobject>. and it contains a rowdetails template of another telerik grid(Grid B). Also inner grid(Grid B) is binding to the Observablecollection<childbusinessobject>.

I have added a button as cell template in the inner grid row (Grid B) as user click the button will add the particular item in to the shopping basket.

It is working fine with mouse click event and I want to reach the same functionality using the keyboard events (F4) as well.

Thanking You

GridView

answered on 27 Aug 2010

2 answers

83 views

How do we filter data in certain rows in a bound gridviewcombobox column?

Hello,

I have a radgridview with a gridviewcombobox column which is bound to a collection. So all the rows in that particular column will show the entries in the collection. In the first row of that column, I want to filter the collection. i.e for the first row i want to display only 'yes' in the combobox were as in the rest of the rows I want to display 'yes','no','none'. Is there any way to filter only certain rows in a bound gridviewcombobox column.

Please help.

Thanks in Advance,
Norbert John

GridView

answered on 27 Aug 2010

4 answers

298 views

Not all unique column items show up in filter popup.

Hello All,

I am sure this was answered already, but I cannot seem to find it using any of my searches.

We have a RadGridView with quite a bit of data. We are filtering on a column, but all of the unique values in that column do not show up in the filter list to select them. The list seems to just stop and not display anything else after a certain point.

Is there a limitation on the number of items that appear in this list? If so, what is the count and how can we turn off this list if the count is greater than the max. (using a style preferably).

We are using Q1 2010 SP2 of the controls.

Thanks in advance,
Chris

GridView

answered on 26 Aug 2010

1 answer

77 views

HierquicalDatemplate Problem

Hi there!

I'm searching for a way to make a treeView with two types os objects:

A.
|_ D.
| |_F.
| |_3
|_ E.
|_ 1
|_ 2
B.
C.

Character are Files Type (Keys), and numbers as objects (Values)
I can't find a way to mix up the two types in the same Hineritance.
If someone have a solution? Please tell me.

Best Regards

Valerio

TreeView

answered on 26 Aug 2010

3 answers

395 views

LoadOnDemand in MVVM Pattern

Hi.
There's a way to Bind the LoadOnDemand Event to a Command in a MVVM Pattern.
I'm using Galasoft MVVM Light in my application and I load the data from WCF services. All is ok, but now I've to manage the LoadOnDemand Event without breaking the MVVM pattern.

I've tryied using the EventToCommand of Galasoft and its works fine. This is the XAML code

<UserControl

  x:Class="FB_BridgeArchive.View.JobsView"

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

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

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

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

  xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

  xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.WPF4"

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

  xmlns:telerikQuickStart="clr-namespace:Telerik.Windows.Controls.QuickStart;assembly=Telerik.Windows.Controls"

  mc:Ignorable="d" d:DesignWidth="300" d:DesignHeight="400"

  DataContext="{Binding Jobs, Source={StaticResource Locator}}">



  <UserControl.Resources>

    <DataTemplate x:Key="CategoryTemplate">

      <TextBlock Text="{Binding Description}" />

    </DataTemplate>

    <HierarchicalDataTemplate x:Key="LevelTemplate" ItemsSource="{Binding Categories}" ItemTemplate="{StaticResource CategoryTemplate}">

      <TextBlock Text="{Binding Description}" />

    </HierarchicalDataTemplate>

    <HierarchicalDataTemplate x:Key="TeacherTemplate" ItemsSource="{Binding Levels}" ItemTemplate="{StaticResource LevelTemplate}">

      <TextBlock Text="{Binding Name}" />

    </HierarchicalDataTemplate>

  </UserControl.Resources>



  <StackPanel Orientation="Vertical">

    <telerik:RadTreeView x:Name="jobTreeView" Margin="8" ExpanderStyle="{StaticResource ExpanderStyle}"

                         IsLoadOnDemandEnabled="True" IsExpandOnSingleClickEnabled="True"

                         ItemTemplate="{StaticResource TeacherTemplate}" ItemsSource="{Binding Path=Ds.Teachers}">

    <i:Interaction.Triggers>

      <i:EventTrigger EventName="LoadOnDemand">

        <cmd:EventToCommand PassEventArgsToCommand="True" Command="{Binding LoadOnDemand}" />

      </i:EventTrigger>

    </i:Interaction.Triggers>

  </telerik:RadTreeView>

  </StackPanel>

</UserControl>

As you can see I call the LoadOnDemand Command in my ViewModel.
Now, in the ViewModel I've the followind method to handle the LoadOnDemand:

private void HandleLoadOnDemand(RadRoutedEventArgs e)

{

  RadTreeViewItem item = e.OriginalSource as RadTreeViewItem;

  if (item.Item.GetType() == typeof(WcfTeacher))

  {

    Ds.LoadLevels(item.Item as WcfTeacher);

  }

  else if (item.Item.GetType() == typeof(WcfLevel))

  {

    Ds.LoadCategories(item.Item as WcfLevel);

  }

  else

    item.IsLoadOnDemandEnabled = false;

}

It works, but with a problem.
When you click on an item, the method is called and the items are loaded, but you don't see them on the TreeView. You need to click on the item one more time in order to see the item expanded.
Why?
I've forgotten something, or there's some other problems?
Maybe it's the wrong way to bind the LoadOnDemand event, but there's a better way?

Thanks a lot and regards.
Andrea

TreeView

answered on 26 Aug 2010

1 answer

84 views

gauges interactivity + events

Hello,

Can you tell me what events do occur when I use the needle interactive within a gauge?

David Groenewegen

Gauges

answered on 26 Aug 2010

1 answer

196 views

Binding carousel items to column of gridview

What is the best way to bind the items of a carousel to a column (images that are of type byte[]) of a gridView which is itself bound to a database table. I ultimately want to populate the carousel with only the images from the selected rows in the gridView. Any pointers would be appreciated.

Thanks,
Nate

Carousel

answered on 26 Aug 2010

1 answer

378 views

gridview.selectedItem is null

i have this grid

<telerik:RadGridView x:Name="grid" ItemsSource="{Binding Path(ns:class.property)}"

SelectionMode="Single"

ShowGroupPanel="False" AutoGenerateColumns="False" CanUserDeleteRows="False" CanUserFreezeColumns="False" CanUserInsertRows="False" CanUserReorderColumns="False" CanUserResizeColumns="False"

RowIndicatorVisibility="Collapsed" Controls:StyleManager.Theme="Office_Black" EnableColumnVirtualization="False" EnableRowVirtualization="False" IsFilteringAllowed="False" Controls:RadControl.Theme="Office_Black" ReorderColumnsMode="None"
/>

now when i try to change selected item from code like this:

grid.SelectedItem = Collection[0];

the grid.SelectedItem stays null
even though Collection[0] is not null

i tried to call OnApplyTemplate before assignment but it didn't helped

i tried to do it with two way data binding and it didn't helped too

what can cause this?
and how can i solve it?

thanks

GridView

answered on 26 Aug 2010