Questions on UI for WPF Forum

12 answers

1.1K+ views

Ok,

Getting closer to having the grid beaten into shape. Just two more things to solve. In this post, let's deal with detecting the change of an underlying data record.

The grid is clearly NOTICING the record data changes, as they are reflected in real time. If I change the data via my detail window, the grid column updates instantly and automatically. However, the grouping is not re-evaluated, so if the change would place the row in a different group it does not move.

I need to detect the data change, and then re-group the grid so that this change happens. However neither SourceUpdated() or DataContextChanged() fire – so I am clearly looking in the wrong places :)

Any hints?

Ken

GridView

answered on 27 Oct 2009

2 answers

162 views

Combobox Column Databinding Problem

Hi i have a grid containg a combobox column,i had a few research for databinding in a template,but i can see databounded objects in my column ,whats wrong

Gridview is databound manually in runtime from EntityFramework,i cant see data aboute row groups in gridview column

//Gridview
<telerik:GridViewColumn CellTemplate="{DynamicResource Cell_RouteGroup}" Header="Group" Width="180" DataContext="{Binding RouteGroupDataSource}"></telerik:GridViewDataColumn>

//Template
    <UserControl.Resources>
        <DataTemplate x:Key="Cell_RouteGroup">
            <telerik:RadComboBox Height="29" Width="118" Foreground="Black" DisplayMemberPath="GroupName" SelectedValuePath="RouteGroupID" ItemSource={Binding RouteGroupSource} SelectedValue="{Binding RouteGroupID}" />
        </DataTemplate>
    </UserControl.Resources>

//C#
public IOrderedQueryable<Routes_Groups> RouteGroupDataSource
        {
            get { return Loader.TEX.Routes_Groups.OrderBy(p => p.GroupName); }
        }

GridView

answered on 27 Oct 2009

4 answers

293 views

Configuring TabStop behavior

All,

I am not sure how to configure my RadGridView's tab indexes (AKA TabStop), so the focus remains in the row details that I constructed. Basically, for 508 compliance, if I can make the tab index iterate within the row detail instead of jumping back up to RadGridView cells, then it will pass compliancy. Anyone have any suggestions?

- Rashad Rivera
www.omegusprime.com

GridView

answered on 27 Oct 2009

5 answers

193 views

Vertical Scrollbar fit the grid

Hi,

I am using this treeview in the way same as the demo sample of Organization, Department, Person. How can I move the vertical scrollbar to fit the area.

Thanks,

Tao

TreeView

answered on 27 Oct 2009

2 answers

142 views

Applying Filter to GridView

Hi,

I am applying a filter programmatically to a Telerik GridView so that only those records which match the selection
should be shown. My predicate seems to be filtering the results correctly but my source collection is never filtered. Here is my
sample code:

//Setting Data Context here

internal void BuildReportObjectCollection()

{

List<ReportObjectEntity> reportObjectCollection =

Presenter.buildReportObjectCollection();

SingleObjectList.DataContext = reportObjectCollection;

}

//Use the list of Guids to filter my collection using
//the predicate here

public void Show(List<Guid> reportObjectList)

{

selectdReportObjectCollection = reportObjectList;

if (selectdReportObjectCollection != null)

{

if (SingleObjectList.ItemsSource != null)

{

// filter

collectionView =

CollectionViewSource.GetDefaultView(SingleObjectList.DataContext);

collectionView.Filter =

new Predicate<object>(FilterForSelectedReportObjectList);

}

public

bool FilterForSelectedReportObjectList(object item)

{

ReportObjectEntity reportObject = item as ReportObjectEntity;

if (reportObject != null && this.selectdReportObjectCollection.Contains(reportObject.ReportObjectID))

{

return true;

}

else

{

return false;

}

}

//The XAML is pretty standard for the GridView, ItemsSource = {Binding}

Does anyone know what is the issue here?

Thanks,

GridView

answered on 26 Oct 2009

1 answer

134 views

databinding to ChartArea

Hi,

how can I bind data to ChartArea? It doesnt have SeriesMapping property.

I have a chart that have 3 chart areas. I want to bind the same collection (Observable collection of ViewModels) to these areas, but each area will display different property from ViewModel. Or is making 3 Charts instead of 3 ChartAreas a better approach? (but then i would loose the fancy background).

Second question.. can I save ChartArea to picture or this is possilbe only for charts?

Thanks

Chart

answered on 26 Oct 2009

2 answers

245 views

Tab tooltip

I am dynamically generating Tab like:
RadTabItem itemToAdd = new RadTabItem()
                    {
                        Header = pnl,
                       ToolTip="RevKey : " + _revKey,
                        Content = newAudit,
                        Padding = new Thickness(10, 5, 10, 5),
                     };

here newaudit is some usercontrol which have agains tabs inside.
So,problem is that I am assigning tooltip="revKey=......" to Top control(itemToAdd ) tab and it show the tooltip to newAudit control tab's also as well as for newaudit tab content (textbox,combox).

TabControl

answered on 23 Oct 2009

1 answer

44 views

Horizontal Scrolling - Filtering Icons dissappear

When i have a few columns at the start of my grid, and i horizontally scroll to the last column, after i've scrolled back to the start, the Filtering icons have vanished from the column headers of the columns that were scrolled out of view.

Before and after shots attached. In between these two screenshots, all i have done is scrolled to the right, and then returned back.

I'm using the WPF Q3 Beta 2, not sure if this issue existed before then.

GridView

answered on 23 Oct 2009

1 answer

91 views

TreeView Drag&Drop Events

Hello all. I try to use RadTreeView but I can't catch events: PreviewDrop and Drop. But PreviewDragStarted and other Drag events I catch. And UI works successfully.

TreeView

answered on 23 Oct 2009

1 answer

45 views

Mapping needed between the Silverlight and WPF controls

Hi,
I am new to Telerik WPF Controls,
I need to convert some Silverlight stuff to WPF.
I heard that "All the classes or controls in Silverlight has equal classes or controls in WPF".
But when i am trying to do it,i was not able to find some similar controls for WPF.

I will be greatfull if i get a mapping between the Silverlight and WPF controls.

For Eg.
(1) In silverlight,<HierarchicalDataTemplate> is in assembly=Telerik.Windows.Controls
but for WPF it is not there, may be due to <HierarchicalDataTemplate>
is present directly in WPF.

(2) in silverlight the folowing code is used what will be the equivalent code in WPF?.

xmlns:radDock="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Docking"

<radDock:RadDocking.DocumentHost>
    <radDock:RadSplitContainer>
        <radDock:RadPaneGroup x:Name="DocumentHostRadPaneGroup">
        </radDock:RadPaneGroup>
    </radDock:RadSplitContainer>
</radDock:RadDocking.DocumentHost>

TabControl

answered on 23 Oct 2009