I have a RadTreeView that is using  hierarichal data template, and it is binded with thousands of records.
I am using UI Virtualization, to increase performance and the VirtualizationMode is standard.

In my case, i want to choose a group and highlight all children recursively, however it don't highlight all the children, and i guess this is due to the virtualization, as some of the children are not yet rendered.

This is my xaml tree code:

 

This is the C# Code of recursion selection :

 

 

 

Notes:
1-This code do not select all the children.
2-SelectedNode is of type RadTreeViewItem.


Thanks in advance

Hi,

I used the GridView example "Various Data Sources" as a guide in loading xml data into a Grid View. That is fill a dataset and then executes a DataSet.GetXml() to get the xml.  This works great except that all the columns are of system type string. Can you tell me how to get the correct system data types into the GridView?

Thanks
Rich

There seems to be a bug with the raddatepicker, when a bound property is updated, the value displayed is not updated to the correct value. I'm trying to prevent the user from entering a future date, and I can step through the property and field is setting it correctly, also, after the change is raised, it's returning the new date set in code behind, but the UI still displays the typed in date.  This code works as expected with the built in WPF datepicker. (ie the UI updates to the correct date (DateTime.Now) if a future date is entered).

<telerik:RadDatePicker SelectedDate="{Binding Path=ApplicationDate, Mode=TwoWay}" DisplayDateEnd="{x:Static sys:DateTime.Now}"/>

The property for the bound value is defined as

public DateTime? ApplicationDate

        {

            get { return Loan.ApplicationDt; }

            set

            {

                if (value > DateTime.Now.Date)

                    Loan.ApplicationDt = DateTime.Now.Date;

                else

                    Loan.ApplicationDt = value;

                RaisePropertyChanged("ApplicationDate");

            }

        }

Hi,

How to achieve the following behavior: I need to show the concrete child (string type) from the parent container:

<telerik:PropertyDefinition Binding="{Binding Container}">
    <telerik:PropertyDefinition.NestedProperties>
        <telerik:PropertyDefinition Binding="{Binding Children[0]}"/>                          
    </telerik:RadPropertyGrid.PropertyDefinitions>
</telerik:PropertyDefinition>

It does not enter the Children collection.
I've tried to write the converter but the result - it shows combobox instead of textbox.

public class EnumerableConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {            
            var enumerable = (IEnumerable)value;
            var index = 0;
            var position = int.Parse((string) parameter);
            var enumerator = enumerable.GetEnumerator();
            while (enumerator.MoveNext())
            {
                if (index == position)
                {
                    return enumerator.Current;
                }
                index++;               
            }
            return null;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

Thanks

Hello,

I’m using the RadGridView in my application to show a list of items. As I started to use grouping, I encountered some problems.

1. It seems that grouping is disabled if there are invalid items in the data grid. Though I found a way to overcome this (I need the grouping feature for my application all the time, even if there is an invalid item in the grid) I wondered if there is a regular solution to enable grouping while having an invalid row in the grid.
2. An InvalidOperationException is thrown in the CollapseAllGroups method. The exception message says “No collection”.
   Here is my scenario: I selected two grouping criteria (e.g. “User” and “Date”). So if I have only one element of a specific user in the specific date I’ll get the exception I previously described.
3. I want to be able to jump through the cells of the selected row by pressing the tabulator key. The problem is: if I have set at least one grouping criteria, pressing the tabulator key opens the next group instead of jumping to the next cell of the currently selected row.
4. Although I found out, that an event which gets attached to the PropertyChanged event of the selected item in the code behind no longer is executed if I group the grid. The event is still attached, but no changes on the item trigger it. So my question is: does grouping override normal code behind with own default methods?

Hi,

I bind a PropertyGrid to a pretty complex object generated by Linq2SQL.
I implemented IDataErrorInfo on the object.
Further let the PropertyGrid autogenerate the properties.

Now I have two Problems - this[string ColumnName] never gets called.
Next - the property Grid tries to bind "Error" (I know I can fix this in code behind - but this would break my so far "no code behind" MVVM design) - but this isn't very important.
Last not least I implemented "IsValid" like in the following snippet.

I further know that I could decorate my object with attributes - but the reason to use your PropertyGrid is that the object is large (a lot of properties) and I don't want to define all these things. And it would be hard without touching the Linq2Sql autogenerated code.

Main Problem - no validation (this[string ColumnName] occurs.

Manfred

Hello,
I have tried to find IP Address sample of RadMaskedInput, but it seems that all sample links are broken.
Could you give me a sample for IP Address input?
Thank you.

Hi,
I want to populate RadTimeBar intervals by my own array of dates and allow to snap selection to this date breaks only. Is it possible?

Hello
I've created following tooltip for cell:
But I cannot now delay it in any way:

I tried ToolTipService InitialDelay for column and grid and delay between show and nothing is changing I tried to set it to 2 sec, so value should be 2000.

Hi,

actually I have VS2008 and VS2010 on my computer and Telerik was installed in my VS2008 but not in my VS2010. How it's possible to get Telerik insatlled in my VS2010?

Thank's