Questions on UI for WPF Forum

0 answers

57 views

Hello Telerik,

Is it possible to do a drag and drop operation on a GridViewGroupRow ? I am trying but some how drag does not start.
Do you have any sample for that ? I am doing a college project and need it a bit urgently to demonstrate in my class

General Discussions

asked on 05 Oct 2011

0 answers

147 views

How to Set RadTreeListView ROW Baground Color

I have Telerik RadTreeListView

<

telerik:RadTreeListView x:Name="treeListView" AutoGenerateColumns="False">

<telerik:RadTreeListView.ChildTableDefinitions>

<telerik:TreeListViewTableDefinition ItemsSource="{Binding SubFolders}" />

</telerik:RadTreeListView.ChildTableDefinitions>

<telerik:RadTreeListView.Columns>
<telerik:GridViewDataColumn Header="Folder/File Name" Width="408" IsReadOnly="True" IsSortable="True" IsFilterable="False" HeaderTextAlignment = "Center" TextAlignment="Left">

<telerik:GridViewDataColumn.CellTemplate>

</StackPanel>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn><telerik:GridViewDataColumn DataMemberBinding="{Binding Date, StringFormat=\{0:dd-MMM-yyyy\}}" Header="Date" IsReadOnly="True" Width="140" HeaderTextAlignment = "Center" IsSortable="True" IsFilterable="False" TextAlignment="Center" />

<

telerik:GridViewDataColumn DataMemberBinding="{Binding Count}" Header="Version" IsReadOnly="True" Width="70" HeaderTextAlignment = "Center" IsSortable="False" IsFilterable="False" TextAlignment="Center" />
</telerik:RadTreeListView.Columns>
</telerik:RadTreeListView>
For alternate Rows i like to Apply different Baground Color How Can i Do ?
Help me out as soon as possible....

TreeListView

asked on 05 Oct 2011

1 answer

212 views

updating the databinding source after loaded event

I am using hierachial example , but I populate the data in viewmodel only after the treeview has been load.

sequnce of events _treeview loaded , then getdata from database and assisgn the value to the property.

if I want to GetItemByPath what event should I listen to before I start using the method.

TreeView

answered on 05 Oct 2011

0 answers

140 views

disable specific row in gridview

Hi..

I am using Telerik Rad Wpf grid.

I want to disable some records by binding with linq entities.

Suppose I have an entity named Title which has an active field. I have below converter which is mentioned in Resources.

<

my:UserControl.Resources>

<my1:BooleanConverter x:Key="RowEnableConverter"/>

</my:UserControl.Resources>

And in Grid control , there is a datacolumn.

<

telerik:GridViewDataColumn Header="Document Name" DataMemberBinding="{Binding DOCUMENTDSC, UpdateSourceTrigger=PropertyChanged}" Width="1.5*" IsFilterable="False" IsEnabled="{Binding ACTIVE,Converter={StaticResource RowEnableConverter}, UpdateSourceTrigger=PropertyChanged}" />

Now please see the below example:

1 Ahmed 25

2 Ali 35

3 Maifs 25

Now i want to disable/readonly 2nd record which is

2 Ali 35.

How would i ?
Suggest please.

GridView

asked on 05 Oct 2011

0 answers

88 views

Problem with RadGridViewCommands.MoveFirst

Hi Support

Move First Command when the focus is in last column donot work, is it bug? Can I fix it?

Thanks in advance
Mehri

GridView

asked on 05 Oct 2011

2 answers

349 views

Real-time Data via ObservableCollection

Hi,

I have a radgridview that is bound to an observablecollection containing 16 properties, one for each column of the radgridview. I have an WCF service that I poll every second, updating the observablecollection and thus, updating the radgridview. I'm doing this with a dispatchertimer that fires a backgroundworker. This works quite smoothly, although larger result sets (more than 50 rows) cause the GUI to freeze and/or the radgridview to "blink" momentarily. Those, I'm assuming are limitations of WPF's threading abilities. Anyhow, the largest problem I have is that on radgridview's that scroll vertically, when a user scrolls down, the grid scrolls all the way back to the top whenever the collection changes.

I'm using Row and Column virtualization, if that makes any difference.

Is there a way to make the grid not scroll to the top when the collection changes??

GridView

answered on 05 Oct 2011

3 answers

87 views

Runtime Row Expand

Hi

I want expand some row at run time in gridview and treeview. Please help me.

Thanks
Vijay Kumar

GridView

answered on 05 Oct 2011

0 answers

69 views

Problem with Re-Binding

Hi,

I have a self referencing grid view in a output.xaml and having an event in the ViewModel.

Calling this event while adding new items in the other screen (to add the Grid view Headers).

Add couple of Headers and click the Output tab to view the values in the Grid View. Now its showing the grid with parent child relationship and the headers.

Now if I go and add a new header then the event will be called in the ViewModel of the output and binding the grid to show the new headers and the relevant values for the column. Here I am facing problem that while re-binding it takes time and binding the grid without the self referencing hierarchy. it just binds all the rows in the datatable property as the parent node.

Anybody knows where i have made the mistake.

Thanks,
Ramasamy

GridView

asked on 05 Oct 2011

1 answer

300 views

Define ColumnSortDescriptor with custom Comparer(T)

In my application, I have a column in my RadGridView that is bound to a property of type 'System.Type'. When attempting to sort by this column, I get a System.ArgumentException{"At least one object must implement IComparable."}. I am not interested in wrapping the System.Type class at all to implement the IComparable(T) interface and would like to be able to provide a function delegate to the ColumnSortDescriptor to sort the types by name instead of using the default comparer as I could with a normal list.

Function CompareTypeByName(ByVal x As System.Type, ByVal y As System.Type) As Integer

If x Is Nothing Then

If y Is Nothing Then

Return 0

Else

Return -1

End If

Else

If y Is Nothing Then

Return 1

Else

Return x.Name.CompareTo(y.Name)