I am writing a WPF application using MVVM, I am trying to bind a nested complex object to the telerik radGridView control. I basically need to create the datagrid dynamically and I only know at run time how many columns it will have also the columns need to be generated from the rows...


The MetaDataDO class,
public class MetaDataDO
{
public int MetaItemId { get; set; }
public string Name { get; set; }
public int SequenceNumber { get; set; }
public IList<ItemDO> Volumes { get; set; }
}

The ItemDO class,
public class ItemDO
{
public int ItemId { get; set; }
public DateTime StartDateTime { get; set; }
public DateTime EndDateTime { get; set; }
public int Period { get; set; }
public decimal Price { get; set; }
}

In my view model I have a property ObservableCollection MetaDataCollection that can have N number of MetaDataDO, each MetaDataDO will have 4 Prices in it. Example data below..

MetaDataCollection
1, UK, 10,
                 Volumes
                         1, 24/01/2014 00:00, 24/01/2014 06:00, 1, 100
                          2, 24/01/2014 06:00, 24/01/2014 12:00, 2, 120
                          3, 24/01/2014 12:00, 24/01/2014 18:00, 3, 110
                          4, 24/01/2014 18:00, 24/01/2014 24:00, 4, 150

2, UAE, 20,
                  Volumes
                          1, 24/01/2014 00:00, 24/01/2014 06:00, 1, 500
                          2, 24/01/2014 06:00, 24/01/2014 12:00, 2, 140
                          3, 24/01/2014 12:00, 24/01/2014 18:00, 3, 510
                          4, 24/01/2014 18:00, 24/01/2014 24:00, 4, 550
.... can have N more...

I have no control over how these existing objects are defined, these are being returned by an external system. Once I receive the data in my viewmodel,

I want to display the results on the UI in the radGridView in the following format,

            Start            |             End             | UK | USA
--------------------------------------------------------------------
24/01/2014 00:00 | 24/01/2014 06:00 | 100 | 500
24/01/2014 06:00 | 24/01/2014 12:00 | 120 | 140
24/01/2014 12:00 | 24/01/2014 18:00 | 110 | 510
24/01/2014 18:00 | 24/01/2014 24:00 | 150 | 550

so in simple terms, i am trying to bind the property to the radGridView in the following way...

            Start            |             End                  |                                           UK                                                                                            |                       USA
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
MetaDataCollection[0].Volumes[0].Start | MetaDataCollection[0].Volumes[0].End | MetaDataCollection[0].Volumes[0].Price | MetaDataCollection[1].Volumes[0].Price 
MetaDataCollection[0].Volumes[1].Start | MetaDataCollection[0].Volumes[1].End | MetaDataCollection[0].Volumes[1].Price | MetaDataCollection[1].Volumes[1].Price 
MetaDataCollection[0].Volumes[2].Start | MetaDataCollection[0].Volumes[2].End | MetaDataCollection[0].Volumes[2].Price | MetaDataCollection[1].Volumes[2].Price 
MetaDataCollection[0].Volumes[3].Start | MetaDataCollection[0].Volumes[3].End | MetaDataCollection[0].Volumes[3].Price | MetaDataCollection[1].Volumes[3].Price 

How do I bind the property which is really a complex nested object to the radGridView to achieve this output format? Any hints welcome...

Thanks
Tarun

Hi,

while the DateTimePicker (when adding a new Appointment) works as expected the RadScheduleView itself has several "strange" behaviors.
First - Hours are displayed in 12h format (without AM / PM marker) not in 24 hour format as set by the OS (and used by the DateTimePicker).

Next - in Timeline the Date separator is a minus sign instead of a dot.
So it shows (in correct order day month year)  03-07-2014 instead of 3.7.2014 or at least 03.07.2014.

Hi,

in Outlook - month view - I get the days of the current month in white while the days of the preceding / following months have a different color.
Your RadCalendar does something like this by formatting the days "non bold".

Can this be done "out of the box" or do I have to define "special slots" or things like these?

Hi,

I'm in a situation where I have a sub-collection in my GridView of a complex type and was hoping I could perform a filter like the following:


This is obviously not working....
In a previous post I saw something about using a QueryableCollectionView with Linq and binding it to the DataFilter.
...but after doing some research I can't even find an event where I can overwrite/bypass the default filter behaviour of the datafilter.

---

My current solution/workaround is adding an extra property to the collection that is bound to the GridView that has all the strings from the sub-collection combined ... and letting the DataFilter, filter on that field...  But this method is slow and not really correct.

Thanks in advance,

Hi,

since I work with MVVM I want to avoid code-behind as much as possible.
I need "read only appointments" and found this in help http://www.telerik.com/help/wpf/radscheduleview-features-speacialslots.html

Although I love your controls I really miss good MVVM support.
For an example RadGridView (which I use a lot due to its performance and capabilities) is not useable with "pure MVVM" due to the lack of Command support.
Almost everything is handled via events (like RowEditEnding, RowValidating)...

But there are at least "simple behaviors" like "CanUserEdit" or so which need no code behind.

How about RadScheduleView? Is there a way to avoid code behind (except subclassing the control)?

My need - some appointments have to be ReadOnly - either in general or for certain users (owner may edit / reader must not).
I can provide a property at the appointment (IsReadOnly or so) - so all I need is to handle this with RadScheduleView...

Here's the function that creates RadPieChart.


GetDataPoints() returns the IEnumerable<PieDataPoint>, and Util.GenerateSliceStyle() returns Style.

The color on the slice is set, however, all the slices always end-up being the same color. 
Is there a way of making each slice different color via Code Behind?
Any help (a code example would be the best) would be appreciated. Thank you.

At the moment, this is the result I get (as I mentioned, all the slices are of same color):

I have an application where am deleting row in RadGrdiView.
After deletion, visibly am able to see that the row got deleted but it became hidden. I am observing this behaviour with SPY tool like UIVerify or SPY tool etc...

If I create a new row with same content I will end up with two similar rows one is hidden and the other is newly created row.

Because fo this reason my CUIT script is failing by saying "Unable to click on hidden control".

I am able to reproduce this problem on a simple GirdView apllication.
Any help regarding this would be highly appreciable.

Regards,
Abilash

I would like to make an Expander is expanded or collapsed only if you clicked on the button to the left and not if you click the header.

The thing is possible?

I have objects which contain lists of dynamic and unique Child objects.  I would like to pivot the Child objects onto the grid so they display as one row.  I have the grid working but I can't quite get the syntax for the binding.

I have an object model like the following:

public class ParentObject
string Name
long ObjectId
List<Child> Children {get; set]

public class Child
string ChildName
string ChildValue

My grid is defined as:
<telerik:RadGridView  x:Name="myGrid" Grid.Row="0" VerticalContentAlignment="Stretch" AutoGenerateColumns="False">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Name" DataMemberBinding="{Binding Name}" />
<telerik:GridViewDataColumn Header="Object Id" DataMemberBinding="{Binding ObjectId}" />
</telerik:RadGridView.Columns>

In the code behind I dynamically add every possible Child.Name to the grid as new columns.
List<Child> allChildren = _dataAccess.GetChildren();
 foreach (Child c in allChildren)
 {
                myGrid.Columns.Add(
                    new GridViewBoundColumnBase 
                    {
                      //DataMemberBinding = new Binding("Children[0].Value"),   //this does display the child value but puts it in every column.  I can't hardcode the 0
                        //DataMemberBinding = new Binding("Children[\"" + c.ChildName.Replace(" ","") + "\"].ChildValue"),   //tried by child Name but it doesn't bind.  To do this I updated my List so it was searchable by Name. 
                        //DataMemberBinding = new Binding("Children.ChildValue"),   Does not work
                        Name = c.Name.Replace(" ", ""),
                        Header = c.Name
                    });
    }
All of the correct columns display, I just need to know if it is possible to do a match on the ParentObject.Children.Name to a column so the grid can display the ChildValue field.
A Linq statement similar to Where(x => x.name = column name) I would think would work if that is possible in a Binding.

Perhaps I am just missing some settings, or maybe this is just how it is at the moment, but I cannot seem to get documents with images to print with any kind of quality.

The image is in the header, I can recreate the document in Word, and copy/paste the image back and forth between Word and RadRichTextBox; the image is crisp and clear in Word and horribly unclear when printed from the RadRichTextBox. If I export the document as a word document and print it form Word that way, the images are unclear as well.

Is there anything I can do?