Questions on UI for WPF Forum

10 answers

229 views

GridViewComboBoxColumn not showing info in the grid

Hi all,

The comboboxcolumn is not showing the info from the linked table:
this is the code snippet I'm using to define the column

column = GridViewComboBoxColumn.new()

column.DataMemberBinding = bind

column.UniqueName = colname

column.IsComboBoxEditable = true

column.ItemsSource = data_table_source.DefaultView

column.DisplayMemberPath = "name"

column.SelectedValueMemberPath =

"id"

# add the column to the datagrid

raddatagrid.Columns.Add(column)

I can edit the column and the combobox appears populated in full, but as soon as I select an item the view doesn't show the result.

Any suggestions?

I'm using IronRuby, I can make it work as expected with the WPF .net 4.0 DataGrid without any problem.

Regards

Eduardo

GridView

answered on 23 Apr 2012

6 answers

282 views

Bindning to another element property from AlternateRowStyle

Hello.

I have a RadGridView. And a fake element below. I want to bind AlternativeRowBackground to fake element Background property. And I want to do so in AlternativeRowStyle (because in code-behind this style is upgraded with other triggers, that change Background property due to some logic) and not in AlternativeRowBackground property.

Is it possible to do so somehow?

<telerik:RadGridView ItemsSource="{Binding Data}" AlternationCount="2">

<telerik:RadGridView.AlternateRowStyle>

<Style TargetType="telerik:GridViewRow">

<Setter Property="Background" Value="{Binding ElementName=FakeButton, Path=Background}"/>

</Style>

</telerik:RadGridView.AlternateRowStyle>

</telerik:RadGridView>

<Button x:Name="FakeButton" Background="Blue" Content="Button" />

GridView

answered on 23 Apr 2012

1 answer

118 views

ScrollIntoView for collapsed items

I am using a TreeListView and want to scroll to a particular data item. This works fine if I have expanded the entire tree (hence I assume actually generating rows for all the data items). But if the tree is collapsed ScrollIntoView does not work. What is the recommended method to programatically display a particular data item in a TreeListView even if that data item has not been visible previously.

My datasets only contain approx 1000 items or so. Can I disable dynamic loading? I've had lots of problems trying to work with rows that apparently have not actually been created yet.

Thanks
Dave Goughnour

TreeListView

answered on 23 Apr 2012

2 answers

179 views

Track Ball Info Transparrency

The data that is displayed in my track ball info is quite large and covers my chart series.

Is it possible to style the template for the track ball info so that the containing block is transparent? I'd like to see my chart and the tracked data.

Thanks

ChartView

answered on 23 Apr 2012

3 answers

118 views

Location and number of connectors on Diagram Shape

The diagram control looks very promising but I must be able to control the number and location of the connectors of the Diagram Shape. I have been unable to locate how to do this. My domain has a fixed number of entities that I will need to link together but each entity type will have between 1 and 11 connector points. I will be using DataTemplates to completely control the shapes and was hoping in the template I could identify where I want the connectors to go. Is it possible to achieve this?

Donovan

Diagram

answered on 21 Apr 2012

1 answer

79 views

hierarchy grid find/scroll issue

I'm building a hierarchial grid using the self reference setting and everything seems to work as I want. Using the dataloading event, I define the columns and grid properties. A good example would be an org chart with n levels of employees. Only the top level employees are displayed and any of them that have direct reports it will show the + to allow you to drill down (I have a filterdescriptor that filters out sub-employees so they are only visible as child records). My issue is how to implement a Find function. I have tried to bind the SelectedItem of each grid to a SelectedEmployee notify property. If I do a find on a top-level employee, it works fine, but if it's a employee in a child grid, it doesn't work (I bound the child grids as (sender as GridViewDataControl).SelectedItem = new Binding("SelectedEmployee")). If you can help with this, that would be great. I also will need to auto expand all levels above this in order to display it after the fine.

Any help would be appreciated.

Troy

GridView

answered on 21 Apr 2012

2 answers

164 views

ViewModel driven example

Is there any example how to drive complex docking app (think: Visual Studio) completely by ViewModels using the model-first appoach (as opposed to view-first)? Something in the lines of having a databound



ObservableCollection<

ToolViewModelBase

> ShellViewModel.Tools

where each ToolViewModelBase represents a dockable region in the shell?

Docking

answered on 20 Apr 2012

0 answers

53 views

RadPaneGroup shows tab with 1 pane in latest version

Hello, I just upgraded to the latest version and now when there is only 1 RadPane in a RadPaneGroup the tab strip is now visible with only one tab. This is a change in behavior from the old version (there was no tab strip visible). How do I restore the old behavior?

I am now using version 2012.1.215.40.
Edit: The issue was fixed in 2012.1.326.40

Thanks

Docking

asked on 20 Apr 2012

6 answers

164 views

Gridview columns shrink upon loading

Hi all,

I have been trying to know the source of this issue with no luck for a while now. I am using WPF RadGrdiView 2012 Q1 SP1 in page that bound to a collection in View Model (MVVM/Prism). When the grid loads, if the row is empty (meaning the bound object is not empty but the corresponding properties are null), then the column are shrined even through the grid itself stretches to fill the entire page. It is as if the column didn’t render correctly to take the proper width. Please see attached pic.

The way the GridView is layed out :

RadDocking -> RadPane -> RadTab -> User Control -> StackPanel -> Grid -> GridView

I have tried to set the Horiznotal Content of the Gridview, Grid and StackPanel to “Stretch”, but that didn’t fix the issue.

Any suggestion why this might be happening? Is there a way to force the GridView to redraw/re-calculate column width on loading?

Thanks

GridView

answered on 20 Apr 2012

6 answers

123 views

Getting ArgumentNullException was unhandled

I am using Radgridview in my WPF app. The view model implements Idataerrorinfo interface. Whenever I add a new row to the radGridview I get that exception from a file called Disassembly. Any idea what might cause this error.

Here is a screen shot

General Discussions

answered on 20 Apr 2012