Questions on UI for WPF Forum

4 answers

112 views

Hi.
Small problem:
Imagine a class setup of:

    
            public class DisplayData 
        
            { 
        
               public string Name { get; set; } 
        
               public SomeOtherClass Prop { get; set; } 
        
            } 
        
            public class SomeOtherClass  
        
            { 
        
               public string OtherName { get; set; } 
        
            }

Now I have an ObservableCollection<DisplayData> to display in my Grid.
Problem is the following setup does no display SomeOtherClass nicely (how should it...)

    
            <telerik:GridViewDataColumn  
        
                 Header="Name" 
        
                 DataMemberBinding="{Binding Path=Name, Mode=OneWay}" 
        
                 Width="2*" 
        
                 IsReadOnly="True"/> 
        
            <telerik:GridViewDataColumn  
        
                 Header="Other" 
        
                 DataMemberBinding="{Binding Path=Prop, Mode=OneWay}" 
        
                 Width="3*" 
        
                 IsReadOnly="True"/>

If I change the second column like this:

    
            <telerik:GridViewDataColumn   
        
                 Header="Name"  
        
                 DataMemberBinding="{Binding Path=Name, Mode=OneWay}"  
        
                 Width="2*"  
        
                 IsReadOnly="True"/>  
        
            <telerik:GridViewDataColumn   
        
                 Header="Other"  
        
                 DataMemberBinding="{Binding Path=Prop.OtherName, Mode=OneWay}"  
        
                 Width="3*"  
        
                 IsReadOnly="True"/>

All displays fine. However I loose the Ability to Filter/Group the second column.
I am searching for something like:

    
            <telerik:GridViewDataColumn    
        
                 Header="Name"   
        
                 DataMemberBinding="{Binding Path=Name, Mode=OneWay}"   
        
                 Width="2*"   
        
                 IsReadOnly="True"/>   
        
            <telerik:GridViewDataColumn    
        
                 Header="Other"   
        
                 DataMemberBinding="{Binding Path=Prop, Mode=OneWay}" 
        
                 DisplayMemberPath="OtherName"   
        
                 Width="3*"   
        
                 IsReadOnly="True"/>

And I can't seem to find any solution..

I seem to walking in the dark here.. so could someone please enlighten me ?

Yours,
Nils

GridView

answered on 11 Aug 2009

1 answer

189 views

Button column and click event

Hello everybody.

We have a RadGridView with 4 columns: 2 are simply text column, while 2 have a button.

The problem we can't figure out is: how we can know the row index number (=item) starting from the button click event?

Thank you for your cooperation.

Attilio Gelosa.

GridView

answered on 11 Aug 2009

7 answers

330 views

RadTabItem Theme

I am creating tabs on the fly and need to be able to apply a theme to the actual RadTabItem.

I have tried the following with no success:
1) tab1.SetValue(Telerik.Windows.Controls.StyleManager.ThemeProperty, new VistaTheme());
2) Telerik.Windows.Controls.StyleManager.SetTheme(tab1, new VistaTheme());

tab1 is the tab I created:
RadTabItem tab1 = new RadTabItem();

Also, I cannot apply the theme to an existing tab (within the actual XAML) dynamically either. If a RadTabItem exists with name "tab2" on the xaml form and I try and go and programatically apply a theme somewhere in the code it does not apply at all...

Any help with this would be great. I really need to be able to apply themes on the fly to dynamically created telerik objects.

Thanks

TabControl

answered on 11 Aug 2009

4 answers

115 views

Stretch width

Hy
How can I make the width of the grid to be strech on all window width?
Thanks

GridView

answered on 11 Aug 2009

1 answer

225 views

GridView inside Canvas

If a I create a simple form with just a RadGridView control:

<Grid>

<telerik:RadGridView Name="radGridView1"/>

</Grid>

As I resize the window, the grid streches with the window and vertical/horizontal scrollbars appear if there's any extra rows/columns in the grid. But if I change the container to a canvas:

<telerik:RadGridView Name="radGridView1"/>

</Canvas>

Then any overflow is hidden. Even if I wrap the RadGridView in it's own grid under the canvas no scrollbars appear. This seems to happen if there's a canvas element anywhere in the container hierarchy.

GridView

answered on 10 Aug 2009

1 answer

129 views

SelectedItem Object Reference not set

Working with: Version 2009.1.526.35

Trying to set SelectedItem.
Code:

<telerik:RadGridView AutoGenerateColumns="False"
SelectedItem="{Binding Path=Entity, Mode=TwoWay}" IsReadOnly="False"
ItemsSource="{Binding Path=Entities}"

In my constructor of my model I create a instance of Entity (Selected) and a List of Entities(ItemSource).

When I run, I get a Object Reference not Set... exception.
The same code works fine with a ListBox.

GridView

answered on 10 Aug 2009

1 answer

180 views

Radio button column

Hy
I want to add a Radio button column to my grid
I used the follwing code
how can I let only one radio button to be select
(a kind of a radio button group)
Thanks

    
            <telerik:RadGridView.Resources> 
        
                                    <ControlTemplate x:Key="cellTemplate1" TargetType="{x:Type telerik:GridViewCell}">  
        
                                        <RadioButton IsChecked="{Binding Field.Record.Data.RB, RelativeSource={RelativeSource TemplatedParent}}"   
        
                                                        HorizontalAlignment="Center" VerticalAlignment="Center"  /> 
        
                                    </ControlTemplate> 
        
                                    <Style x:Key="RBbooleanCellStyle">  
        
                                        <Setter Property="telerik:GridViewCell.Template" Value="{StaticResource cellTemplate1}" /> 
        
                                    </Style> 
        
                                </telerik:RadGridView.Resources>

GridView

answered on 10 Aug 2009

2 answers

47 views

ChildTemplate doesn't show up when grid is grouped

Hello guys,
I've rebuilded the First Look Example with ChildTemplate, foto... etc.
Now my problem ist, that whenever I group by a column by dragging it into the header, only the first and the last record's childtemplate show up, when clicking the plus (+). When I click the plus of other records, the plus only changes to a minus and nothing happens. But when I cancel grouping this records, the record's childTemplates are expanded and shown. It looks like they are expanded in the background but cannot be shown in the grouped grid.

I'm using following methods seen in one of your examples. The first I'm using to have default collapsed grouping and the second to change selected row on first click (needs your sample class DependencyObjectExtensions.cs).

    
            private void GridViewGroupRow_Loaded(object sender, RoutedEventArgs args)

            { 

            GridViewGroupRow groupRow = (GridViewGroupRow)args.OriginalSource;

            groupRow.IsExpanded = false; }

            private void HeaderButton_Click(object sender, RoutedEventArgs e) {

            FrameworkElement element = (FrameworkElement)sender;

            var row = element.GetVisualParent<GridViewRow>(); 

            row.IsSelected = true;

            }

Is possibly here something going wrong?

Any help would be appreciated

GridView

answered on 07 Aug 2009

2 answers

416 views

Cannot add content of type...

Hi,

I'm having a problem with the GridView control on a client's machine. When I or my colleagues compile and run it everything goes right. However, when we deploy on a client's machine we get an error message saying "Cannot add content of type 'Telerik.Windows.Controls.GridViewDataColumn' to an object of type 'Telerik.Windows.Controls.GridViewColumnCollection'. Error at object 'Telerik.Windows.Controls.GridViewDataColumn' in markup file 'CowculationsWindows;component/useradmin.xaml' Line 57 Position 18."

This is the code:

<telerik:RadGridView Margin="15,66,9,46" Name="rgvUsers" AutoGenerateColumns="False" AddingNewDataItem="rgvUsers_AddingNewDataItem" ValidationMode="Row" AutoGenerateHierarchyFromDataSet="True" ColumnsWidthMode="Auto">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn DataType="{x:Null}" HeaderText="Full Name" UniqueName="UserFullName" Header="Full Name"/>
                <telerik:GridViewDataColumn DataType="{x:Null}" HeaderText="User Name" UniqueName="UserName" Header="User Name"/>
                <telerik:GridViewDataColumn DataType="{x:Null}" HeaderText="Password" UniqueName="Password"/>
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>

The particular line where the error happens is this:

<telerik:GridViewDataColumn DataType="{x:Null}" HeaderText="Full Name" UniqueName="UserFullName" Header="Full Name"/>

The GridView uses hierarchy, so that might be an issue.

Please help.

Regards,

-Harun

GridView