Questions on UI for WPF Forum

2 answers

217 views

[Solved] Entities is not a valid ObjectContext

Hi,

I have setup Entity Framework in my WPF application and have used the example, but it keeps telling me that the object Context I am using is not allowed even though I am using the DBContext that the Entity Framework wizard created for me.

Below is my xaml:

<UserControl
...
<xmlns:data="clr-namespace:Stats.Data"
...
<Grid>
<telerik:RadEntityFrameworkDataSource Name="statsDS" QueryName="Client">
<telerik:RadEntityFrameworkDataSource.ObjectContext>
<data:StatsEntities/>
</telerik:RadEntityFrameworkDataSource.ObjectContext>
<telerik:RadEntityFrameworkDataSource>
<telerik:RadGridView itemsSource="{Binding DataView, Elementname=statsDS}"/>
</Grid>
</UserControl>

StatsEntities is the DBContext within my Entity Framework model.

EntityFrameworkDataSource

answered on 12 Mar 2013

1 answer

178 views

Cell level data types

Hello, is it possible using MVVM to have different data types in a single column? I would want one cell to be string, another to be numeric, and another to be a dropdown etc. Or possibly use 1 datatype(String), but have different editors in each cell. Your new spreadsheet control may be a better solution, but it may be some time before it is done, and if this can work using the GridView, I'd use that.

Thanks
Scott

GridView

answered on 12 Mar 2013

1 answer

146 views

How can I edit the Cell.DataColumn.DataFormatString programmatically by cell and not by column?

Please, I am Felipe Lucio Quirino and I`m using a custom RadTreeListView custom control that is almost what I want.
The problema is that i`m setting the ItemSource of the RadTreeListView, and its cells types and validations are built as the type of the source I was binding to the RadTreeListView, but, I have a column that is an object type and I want to change the cell DataFormatString if possible for datetime, decimal or other type when the application is running. I did not find a way for doing it. please, help!
I got a project attached in this thread that you could customize, but to try to reprodoce what I want you have to put other property in the File class type defined like an object and when begin editing the RadTreeListView when the app is running , try to set some specific datatype like decimal.

change de extension of the file to .rar.. to extract the project or download by the following link http://www.telerik.com/ClientsFiles/231850_radtreelistviewdraganddropsample-wpf-1.zip

Thanks!

TreeListView

answered on 11 Mar 2013

1 answer

192 views

richTextBox size in Inches

Hey there,

I'm currently searching for a way to set the radRichTextBox size to CM or inches.
Something like in the
radRichTextBoxRibbonUi -- Page layout -- Size
but not with predesigned sizes.

Is there a given way to do that or do I have to calculate the size via ppi?

Thanks for any help! :)

RichTextBox

answered on 11 Mar 2013

1 answer

265 views

Problem with RadDocumentPane closing

Hello. I have one problem. When I click button "Close" on RadDocumentPane I see that pane is closed. But when I try to save layout I see that this pane is hidden. I need to disable hidding pane when I click button "Close". How ca I do it? Thanks.

Docking

answered on 11 Mar 2013

2 answers

77 views

Cannot add to ItemMappingCollection after updating updateing to newest

Hi.
I updated to the newest version of Telerik Dll's and I cannot add to ItemMappingCollection (Witch I could without problem)

code:

private void createSeriesMappings(int count, string value, string stackName)

{

for (int i = 0; i < count; i++)

{

SeriesMapping seriesMapping                                         = new SeriesMapping();

seriesMapping.SeriesDefinition                                      = new StackedBarSeriesDefinition(stackName);

seriesMapping.SeriesDefinition.ShowItemToolTips = true;

seriesMapping.SeriesDefinition.ShowItemLabels = false;

seriesMapping.SeriesDefinition.InteractivitySettings.HoverScope = InteractivityScope.Series;

seriesMapping.SeriesDefinition.InteractivitySettings.SelectionScope = InteractivityScope.Series;

seriesMapping.ItemMappings.Add(new ItemMapping("[" + i + "]." + value, DataPointMember.YValue)); // this gives me the error

chart.SeriesMappings.Add(seriesMapping);

}

}



the error

'Telerik.Windows.Controls.Charting.ItemMappingCollection' does not contain a definition for 'Add' and no extension method 'Add' accepting a first argument of type 'Telerik.Windows.Controls.Charting.ItemMappingCollection' could be found (are you missing a using directive or an assembly reference?) 



How can I solve this ?



Best regards

Kristján

Chart

answered on 11 Mar 2013

7 answers

496 views

PersistenceManager.LoadFromXml vs Assembly Versions

Hi All,

We use Telerik's PersistenceManager capabilities to save user settings to XML in a relational database (as desribed here).
In particular, some of RadGridView's settings are stored this way.
This has worked fine for several months, until we performed an update of our Telerik libraries last week.

The XML the PersistenceManager produces, contains some type information concerning the types that were serialized to XML,
and contains lines like this:

<TI K="-134624143" N=

"Telerik.Windows.Controls.GridView.GridViewLengthConverter, Telerik.Windows.Controls.GridView, Version=2011.2.712.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7"

/>

After the Telerik libraries update, this causes an exception because we now use Telerik.Windows.Controls.GridView v2012...
When PersistenceManager.LoadFromXml is called, the PersistenceFramework tries to load the Type,
resulting in a TypeLoadException:

Could not load file or assembly 'Telerik.Windows.Controls.GridView,

Version=2011.2.712.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' or one

of its dependencies. The located assembly's manifest definition does not match

the assembly reference. (Exception from HRESULT: 0x80131040)

What is the best option to avoid this on Telerik updates?
Can we tell the Serializer not to Save the fully qualified type name to XML?

Thanks for your time,
Koen

PersistenceFramework

answered on 11 Mar 2013

3 answers

358 views

Styling ChildTable in Hierarchical Grid

Is there a way to provide a different style for the grid generated in a hierarchy. E.g. Can the parent grid use one style, while the child grid uses another?

Cheers

Justin

GridView

answered on 11 Mar 2013

3 answers

371 views

RadGridView removes ColumnSortDescriptor

The RadGridView removes the ColumnSortDescriptor when there is no data to display. The result is that when there is data again, it isn't sorted any more.

My specific case is as follows: I have two grids. The second grid shows the items from a List<> property of the selected item in the first grid. When the second grid is sorted (either because I added a ColumnSortDescriptor in the constructor or because the column was clicked in the GUI) and in the first grid a row is selected that doesn't have any items in the List, then the second grid shows no items (correctly) and the sorting arrow disappears. After a row is selected that does have items in the List, the second grid shows these items, but the sorting is gone.

Is there a way to make this sorting more persistent?

Thanks in advance,
Herre

[WPF2012Q3]

GridView

answered on 11 Mar 2013

1 answer

179 views

Hide the border on a focused cell

Hi!
I want to hide the black border that appears, by default, on a selected cell of a RadGridView.

I don't know exactly wich style of the RadGridView I have to override.

Thanks in advance.

GridView

answered on 11 Mar 2013