Questions on UI for WPF Forum

3 answers

584 views

[Solved] ReadOnly Property is not updating....

i have a "total" readonly field in my collection.
and it depends upon three other fields (quantity, Unit price, discount)
upon changing of any of these values i can see in debugging that the total property also changing,
but that is not reflecting in Grid Column of Total.
how to reflect the new value instantantly
however i have a simple Aggregate sum function in bottom which updating fine. but not the total Column field.

GridView

answered on 13 Jul 2010

5 answers

257 views

GridView 'is not marked as serializable' problem.

Hello,
I'm using RadControls for WPF Q1 2010 SP2.
I'm trying to save data from the Gridview with BinaryFormatter. My custom class is marked as serializable and saving List<MyClass> is OK, but when I'm trying to save MyGridView.Items the following error occures:

Type 'Telerik.Windows.Data.WeakEvent+WeakListener`1[[System.ComponentModel.
PropertyChangedEventArgs, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]'
in Assembly 'Telerik.Windows.Data, Version=2010.1.603.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7'
is not marked as serializable.

Maybe I'm doing something wrong, so I need help, please.

GridView

answered on 13 Jul 2010

0 answers

123 views

error in cll events

MY USER CONTROL XAML

<UserControl x:Class="CommonControl.PagingBar"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:PagingBar="clr-namespace:CommonControl;assembly=CommonControl"
    Height="38" Width="304" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">
    <StackPanel Height="34" Width="300">
        <telerik:RadButton Name="btnPaginStart" Click="btnPaginStart_Click" HorizontalAlignment="Left" Margin="5,5,0,-24" Height="24" Width="24"   >|<</telerik:RadButton>
        <telerik:RadButton Name="btnPaginEnd" Click="btnPaginEnd_Click" HorizontalAlignment="Left" Margin="220,0,0,-24" Height="24" Width="24" >>|</telerik:RadButton>
        <telerik:RadButton Name="btnPaginPrevious" Click="btnPaginPrevious_Click" HorizontalAlignment="Left" Margin="35,0,0,-24" Height="24" Width="24" ><</telerik:RadButton>
        <telerik:RadButton Name="btnPaginNext" Click="btnPaginNext_Click" Margin="190,0,0,0" HorizontalAlignment="Left" Height="24" Width="24">></telerik:RadButton>
        <my:IntegerInput Height="18" Margin="-50,-20,0,0" Name="integerInput1" ValueChanged="integerInput1_ValueChanged" Width="120" xmlns:my="clr-namespace:DevComponents.WpfEditors;assembly=DevComponents.WpfEditors" />
    </StackPanel>
</UserControl>

XAML.CS

public event EventHandler pgnPaging_EventExecuteLoad;

private void btnPaginEnd_Click(object sender, RoutedEventArgs e)
        {
         // WANT TO CALL EVENT IN BUTTON CLICK
          pgnPaging_EventExecuteLoad(NULL,NULL);
        }

USER CONTROL USE IN

<PagingBar:PagingBar Height="38" VerticalAlignment="Top" HorizontalAlignment="Left" Width="256" ></PagingBar:PagingBar>

WANT TO CALL

public void pgnPaging_EventExecuteLoad(object sender, System.EventArgs e)
        {
            loadGroup(2, 1, 20);
        }

ERROR IS - Object reference not set to an instance of an object

General Discussions

asked on 13 Jul 2010

4 answers

169 views

Calculate Grand total of column which is calculated through IvalueConverter

Hi all,
i have a total column in my grid. which is calculated through IValueConverter. it works fine. i want to have its grand total in Footer. so how to do it?

GridView

answered on 13 Jul 2010

3 answers

302 views

RadDocking.SetFloatingLocation usage

Hello,

I have a zoom functionnality in a RadSplitContainer, i would like to place bottom-right my main application window.

I create this splitcontainer in xaml.

    
            <telerik:RadSplitContainer InitialPosition="FloatingOnly" x:Name="ZoomContainer"  
        
                                              telerik:RadDocking.FloatingSize="200 200"     > 
        
                            <telerik:RadPaneGroup  > 
        
                                <telerik:RadPane CanDockInDocumentHost="False" CanUserClose="True" x:Name="paneZoom"   
        
                                        DataContext="{Binding DataContext, ElementName=root}" 
        
                                        IsHidden="{Binding DisplayZoom, Mode=TwoWay, Converter={StaticResource convInverseBoolean}}"  
        
                                      Header="Zoom"  > 
        
                                    <!--<Expander IsExpanded="True" Header="Zoom">--> 
        
                                    <Grid x:Name="rootZoom">

Then on Main window load container I'd like tu set programmaticaly the floating location :

    
            private void QDiagram_Loaded(object sender, RoutedEventArgs e) 
        
            { 
        
               //ZoomContainer.SetValue(RadDocking.FloatingLocationProperty, new Point(132, 10)); 
        
              RadDocking.SetFloatingLocation(ZoomContainer, new Point(132, 10)); 
        
            }

But it seems not to work...

Thanks for your help
Aurore

ps : is there a difference between using Object.SetValue(property, value) and type.Setproperty(object, value) ?

Docking

answered on 12 Jul 2010

1 answer

194 views

How to really close the Radpanes?

Hi,

When I close the panes of RadDocking at runtime, and then Serialize the layout setting by using SaveLayout method, but the layout setting in XAML format still contain the panes I just closed. Is there any way to solve it?

Docking

answered on 12 Jul 2010

7 answers

834 views

Preserve selected items after refreshing data source

Hello!

Is it possible to preserve all selected items in RadGridView after refreshing the data source? The grid ist bound to an observable collection. This collection is completly replaced after an user action. Actually the default behaviour of the grid is to select the first item in collection. I´d like to change this because it annoys the user.

Thank you and with kind regards
Philip

GridView

answered on 12 Jul 2010

3 answers

134 views

When apply LoadLayout, contents are not loading.

Hi,

am saving a layout in XML file. and whenever that form opens am loading same layout after InitializeComponent().
While doing this layout is coming correctly. but whatever contents like grids, buttons are missing from all the panes.

What could be a reason?

Thanks...!!!

Docking

answered on 12 Jul 2010

1 answer

98 views

Minimum Problem

Dear Colleagues,

I have difficulties to use Minimum Property. Here's the XAML:

<Telerik:RadNumericUpDown IsInteger="True" Minimum="0" x:Name="NumericPieces" Value="1" Grid.Column="1" Margin="5" Grid.Row="0"></Telerik:RadNumericUpDown>

Control sets its value to 0 (zero), and the user cannot increase the value. When I remove the Minimum property from the definition, it works fine.

Am I missing something ? (Version : 2010.1.702.35)

Thank you.

NumericUpDown

answered on 12 Jul 2010

4 answers

883 views

Check for duplicates in RadGridView rows

We have a RadGridView with 2 columns.
When we edit a cell or when we are adding a new row, we want to loop through the rows cell[1] to check for duplicates.
We want to do this in...

private void TheGridCellValidating(object sender, GridViewCellValidatingEventArgs e).

We try things like this...

            var grid = (e.Row).GridViewDataControl;
            string value = e.NewValue.ToString();

            var rows = grid.ChildrenOfType<GridViewRow>();

            foreach (var row in rows)
            {
                if (row == null) continue;
                if (row.Cells == null) continue;
                if (row.Cells[1] != null)
                {
                    var s = row.Cells[0]......
                    ...
                    ....
                }
            }
But... it won't work.
How can we iterate on the rows and check for duplicates?

GridView

answered on 12 Jul 2010