Questions on UI for WPF Forum

2 answers

199 views

GridView Issue with Horizontal ScrollBar

Hi there,

If im using 100% the Width of the Grid <telerik:GridViewDataColumn Header="FirstName" Width="*" /> and wrapping with the scroll bar. Why the column goes out of the frame horizontally. but if i takeout the scroll bar everything seems perfect. And I want the scroll bar to be there.

Example:
<ScrollViewer BorderBrush="Transparent" BorderThickness="0" HorizontalScrollBarVisibility="Auto" >
   <telerik:RadGridView Grid.Row="1" ScrollMode="Deferred"    ShowGroupPanel="False" AutoGenerateColumns="False">
                    <telerik:RadGridView.Columns>
                        <telerik:GridViewDataColumn Header="First Name" Width="200" />
                        <telerik:GridViewDataColumn Header="Last Name" Width="*" />
                        <telerik:GridViewDataColumn Header="Title" Width="200" />
                    </telerik:RadGridView.Columns>
                </telerik:RadGridView>
            </Grid>
</ScrollViewer>

GridView

answered on 16 Mar 2011

3 answers

202 views

PieChart - Reverse Slice Direction

Hi there,

Currently the Rad Pie Chart (seems) to start at the 3 o'clock position, and draws each slice in a counter-clockwise direction.

Is it possible to change the direction to clockwise?

Is it possible to start at the 12 o'clock position?

Some background: We are displaying data in our application, and representing it in a Telerik Rad PieChart, and then exporting the data to Microsoft Excel 2010 via OpenXml, and creating a pie chart in Excel. Because Excel starts drawing its pie chart at the 12 o'clock position (which can be changed by adjusting the angle of the first slice), and draws the slices clockwise, it looks different than the Telerik Rad PieChart in our application, which isn't a very good user experience. So, we're hoping we can change the direction that the Telerik Rad PieChart draws its pie slices, and where it starts drawing its first slice.

Thanks!

Chart

answered on 16 Mar 2011

1 answer

113 views

Preview richtext????

How i can preview richtext? Thank

RichTextBox

answered on 16 Mar 2011

1 answer

120 views

PageUp/PageDown doesn't move selection

I'm using a RadGridView with SelectionUnit=FullRow. When I press the up/down arrow keys, the selected row moves to the new row that I've navigated to. When I press PageUp or PageDown, the grid scrolls, but the selection isn't updated. I've tried using a CustomKeyboardCommandProvider, but it seems like the PageUp/PageDown keys are handled specially by the grid: even when I return an empty List of ICommands, the grid still scrolls up and down.

Any ideas on how to handle this?

GridView

answered on 16 Mar 2011

1 answer

1.4K+ views

Enable/Disable button according Items count in XAML

Hi!

I would like to know how to enable a button when items.count > 0 and disable it when items.count == 0 but into XAML using binding. I did this:

<Button x:Name="btnAceptar" Content="Aceptar" Command="{Binding GrabarCommand}" IsEnabled=

"{Binding ElementName=grdGrid, Path=Items.Count, Converter={StaticResource ConvertidorHabilitacionItemsGrid}, Mode=OneWay}"

>

converter is:

public class ConvertidorHabilitacionItemsGrid : IValueConverter

{

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

{

return !((int)value == 0);

}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

{

throw new NotImplementedException();

}

But it not works

thanks

GridView

answered on 16 Mar 2011

2 answers

152 views

Background color and selecting

For the selected items I do not see the selected color for the columns that have a background color. here is how i am setting them

<telerik:GridViewDataColumn Header="QTR" UniqueName="Quarter" Background="Silver" DataMemberBinding="{Binding Quarter}" Width="50" />

GridView

answered on 16 Mar 2011

2 answers

157 views

Column Filtering

I have 3 radio buttons that will do the following
1) rbAll: Get all the values
2) rbMapped: Get all the values where the program column is not blank
3) rbUnMapped: Get all the values where the program column is blank
I have all the button clicks go to the below method
I am getting a blank results for all them. Any ideas

Telerik.Windows.Controls.GridView.FieldFilterDescriptor columnDescriptor = new Telerik.Windows.Controls.GridView.FieldFilterDescriptor("Program", typeof(System.String));

if (rbAll.IsChecked.Value)

{

columnDescriptor.Filter1.Operator = Telerik.Windows.Data.FilterOperator.IsGreaterThan;

columnDescriptor.Filter1.Value = "0";

return;

}

if (rbMapped.IsChecked.Value)

{

columnDescriptor.Filter1.Operator = Telerik.Windows.Data.FilterOperator.IsNotEqualTo;

columnDescriptor.Filter1.Value = "";

}

else if (rbUnmapped.IsChecked.Value)

{

columnDescriptor.Filter1.Operator = Telerik.Windows.Data.FilterOperator.IsEqualTo;

columnDescriptor.Filter1.Value = "";

}

rgvSellingTitles.FilterDescriptors.Add(columnDescriptor);

GridView

answered on 16 Mar 2011

1 answer

108 views

[Solved] TileView is not working properly when app has several windows

Hello! Recently found bug with RadTileView. In my project I have several modeless windows that have RadTileView inside them. Inside my main window TileView is working good, but inside all other windows item dragging inside RadTileView is buggy, when I start drag - there is no animation there and RadTileViewItems are not repositioned during drag operation. Only when I release mouse button I can see a result. And also if I spend some time dragging items in that TileViews, app often crashes with stack overflow in Telerik.Windows.Controls.Navigation.dll. Finally I've found the solution for that - always set Application.Current.MainWindow to window that is active at the moment. But this is not very convenient. Can you help me to solve that issue?

Best regards,
Ivan Petroff

TileView

answered on 16 Mar 2011

4 answers

485 views

Differentiate between left/right click

I created a context menu for each row in a gridview following this example - http://blogs.telerik.com/vladimirenchev/posts/09-04-09/how_to_radgridview_for_silverlight_row_context_menu_in_three_simple_steps.aspx and it works fine without the SelectionChanged event.
Now, the problem is that I want a user to be able to left-click a row and it will take them to another page:

    
            private void radGVInspectionForm_SelectionChanged(object sender, Telerik.Windows.Controls.SelectionChangeEventArgs e) 
        
                    { 
        
                        ////Get the reference to the selected item 
        
                        object mySelectedRow = radGVInspectionForm.SelectedItem; 
        
                        ////Get the id of the form 
        
                        string id = ((InspectionFormDS.InspectionFormTableRow)mySelectedRow).Id; 
        
                        ////Navigate to the edit form page 
        
                        this.NavigationService.Navigate(new DisplayInspectionFormPage(Convert.ToInt32(id))); 
        
                    }

But this code fires when I try to right-click a row to get to the context menu. So the SelectionChanged event fires for both left and right clicks.
How can I figure out which mouse button was clicked in the SlectionChanged event so if a right button is clicked, then show context menu, if a left button is clicked, then navigate to other page?

GridView

answered on 16 Mar 2011

1 answer

110 views

Example code for UI Virtualization

Hi,

1) Could you please provide an example code for the Treelistview UI Virtualization code? Also, should it be "LINQ-Based Data Engine" always to avail the UI Virtualization feature? If yes then provide an example with LINQ based.

2) UI Virtualization still should work even if my Treelistview control has some editable columns?

Thanks,
Suman

TreeListView

answered on 16 Mar 2011