Questions on UI for WPF Forum

1 answer

236 views

Hello,

I am using Telerik RadControlls for WPF Q3 2009.

I have RadNumericUpDown defined in xaml as follows:

<Telerik:RadNumericUpDown Height="25" Width="100" CustomUnit="kg" Minimum="0" Maximum="250" ValueFormat="Numeric" NullValue="N/A" IsInteger="True" Value="{Binding Path=Weight, Mode=TwoWay}"/>

I am binding the value to property on my ViewModel class. The property is of ?float type. It returns float or null. When it returns float number, the NumericUpDown works fine. But when the property returns null, the NumericUpDown displays "0 kg" instead of "N/A". It is impornant for my application to distinguish between 0 and null, but the NumericUpDown seems to fail at this.

Is this bug or am I missing something?

Thanks

Lukas

NumericUpDown

answered on 07 Dec 2009

19 answers

1.3K+ views

Row style according data item

Hi @ All

I'm wondering if it is possible to set the rowstyle in a RadGridView according the containing data item. I was trying something like this:

    
            <UserControl.Resources> 
        
                <Style TargetType="{x:Type telerik:GridViewRow}"> 
        
                    <Setter Property="Background" Value="#00FF00"/> 
        
                    <Style.Triggers> 
        
                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource DataContext},  
        
                            Path=HighlightRow}" Value="True"> 
        
                            <DataTrigger.Setters> 
        
                                <Setter Property="Foreground" Value="#FF0000"/> 
        
                                <Setter Property="FontSize" Value="14"/>  
        
                            </DataTrigger.Setters> 
        
                        </DataTrigger> 
        
                    </Style.Triggers> 
        
                </Style> 
        
            </UserControl.Resources>

but that does actually not succeed! I already found out, that the DataSource property of the GridViewRow does not contain the single row data, but the whole DataGrid data.
so, what would be the best was to do that?

Regards
Simon

GridView

answered on 07 Dec 2009

3 answers

123 views

findcontrol in grid

In a radGridView I have few readonly fields and some editable fields when we select grid and press tab ,it pu focus on readonly columns also.But I want to disable this behaviour that not to put focus on readonly tabs instead focus on editable tabs.

GridView

answered on 07 Dec 2009

3 answers

153 views

Text disappearing with small Width size

Hi,

I have a RadNumericUpDown control on which I set the Width to 70, but then the text disappears. If the Width is 80, the text is visible properly.

NumericUpDown

answered on 07 Dec 2009

1 answer

64 views

How to get data from row before and after the selected row?

With Ms ListView I can do like this

    
            int _selIndex = dataGrid.SelectedIndex;  
        
            MyCollection _data1 = (MyCollection)dataGrid.Items[_selIndex - 1];  
        
            MyCollection _data2 = (MyCollection)dataGrid.Items[_selIndex];  
        
            MyCollection _data3 = (MyCollection)dataGrid.Items[_selIndex + 1];

But I can't figure out how to do this with RadGridView.

GridView

answered on 07 Dec 2009

4 answers

331 views

Custom Cell Editor Validation

I have a custom cell editor. when the Cell tries to validate (CellValidating event) the NewValue property is always null.
How can I get the NewValue to be set for validation?

    
            <t:GridViewDataColumn DataMemberBinding="{Binding grade}" Header="Grade" EditTriggers="CellClick"> 
        
                                    <t:GridViewDataColumn.CellEditTemplate> 
        
                                        <DataTemplate> 
        
                                            <ComboBox IsEditable="True" Text="{Binding grade, UpdateSourceTrigger=LostFocus, Mode=TwoWay}"/> 
        
                                        </DataTemplate> 
        
                                    </t:GridViewDataColumn.CellEditTemplate> 
        
                                </t:GridViewDataColumn>

GridView

answered on 07 Dec 2009

2 answers

95 views

Change the cell content at runtime

Hi Every one,

I try to find a way to change the content of a cell programmaticaly.
I found this thread:http://www.telerik.com/community/forums/wpf/gridview/change-the-cell-content-at-runtime.aspx

But it doesn't work for me.

my gridview is link to a dataset. when I modify manually the value of the cell through the interface everything is fine. But if I modify it by code, nothing change.

I don't know if a dataset implement INotifyPropertyChanged but how can I have the value change by code.
I also try with using beginedit function and commitedit but still not work

.
Thank you

    
            private void gridMain_MouseDoubleClick(object sender, MouseButtonEventArgs e)  
        
                    {  
        
                        GridViewCell currentCell = (GridViewCell) gridMain.CurrentCell;  
        
                        if (currentCell.DataColumn.DisplayIndex > 17)  
        
                        {  
        
                            if (currentCell.Foreground == Brushes.Red)  
        
                            {  
        
                                currentCell.Foreground = Brushes.Black;  
        
                                currentCell.Value = currentCell.Value.ToString().Replace("*", "");  
        
                            }  
        
                            else 
        
                            {  
        
                                currentCell.Foreground = Brushes.Red;  
        
                                currentCell.Value = currentCell.Value.ToString() + "*";  
        
                            }  
        
                        }  
        
                    }

GridView

answered on 04 Dec 2009

1 answer

120 views

Multicolumn Combo Box in a Grid

Hi..
Do you have any examples of binding a combo box to a grid with multiple columns. Specially - I'm trying to set the ItemSource of the combo box to 3 columns of values in code.

How do I also set the ComboBox's Item source

var query = from c in this.DataContext.Customers
      orderby c.Name
      select c;

this.cmbCustomers.ItemSource = query.ToList()        <-- This doesn't work...

thanks again

GridView

answered on 04 Dec 2009

0 answers

209 views

Errors on same DLL

Does anyone know why you would get an error such as this when it is obvious that the cast should work?

[A]Telerik.Windows.Controls.RadGridView cannot be cast to [B]Telerik.Windows.Controls.RadGridView. Type A originates from 'Telerik.Windows.Controls.GridView, Version=2009.3.1127.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' in the context 'LoadNeither' at location 'D:\Users\Tommy\Documents\Visual Studio 2010\Projects\MyCards.LightSpeed3\bin\Debug\plugins\Telerik.Windows.Controls.GridView.dll'. Type B originates from 'Telerik.Windows.Controls.GridView, Version=2009.3.1127.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' in the context 'Default' at location 'D:\Users\Tommy\Documents\Visual Studio 2010\Projects\MyCards.LightSpeed3\bin\Debug\Telerik.Windows.Controls.GridView.dll'. Error at object 'Telerik.Windows.Controls.RadGridView' in markup file 'MyCards.Material;component/takeoffmanager.xaml'.

------------------------------------------------------------------------------

Wait I just found it but I will finish this post in case someone else finds it useful.
I have some DLLs that are dynamically loaded (as plugins) This error occurs when you have copies of the same DLL in the Load paths. To solve this I simply set Copy Local property of the Reference to False in the Plugin Project.
(you will have to do this every time you update references to new versions of DLLs in your project. I hope VS 2010 allows easier updating of References in Projects or even Solution Wide Reference Updating. If not maybe a JustCode feature)

GridView

asked on 04 Dec 2009

1 answer

102 views

How to set the Name of a control inside an expander.

Dear Teleric team,

I am using Animating Expander control on my page whose name is Doctor Dashboard.
Inside Animating Expander, I have put a stack panel which further contains another reference control Patient Banner.

I want to name PatientBanner so that i may access this control in my Doctor Dashboard page.

I am unable to name it, coz animation expander cannot accept any name, niether can the stack panel in which the reference control for Patient Banner can accept any name.

My XAML code is as follows.

Pls tell me any naming option or any other alternative.

Urgent.

<

ReferenceControls:AnimatingExpanderControl InitialExpandedLength="180" Margin="0" Style="{StaticResource AnimatingExpanderControlStyle}" ExpandDirection="Up" Title="Patient Info" Background="White" Grid.Row="0" >

<ReferenceControls:PatientBanner x:Name="test"/>

</StackPanel>

</ReferenceControls:AnimatingExpanderControl>

Expander

answered on 04 Dec 2009