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Dear sir,

 I have used RadGridViews(Telerik.Windows.Controls.GridView) in WPF that has some column. The header of column is a CheckBox. Some times header CheckBox content binding is works fine, but when i changed to another form and return back to the same form CheckBox content binding doesn't work ie, its not showing the CheckBox contant.

the code is below
   <telerikGrid:RadGridView >
 <telerikGrid:RadGridView.Columns>                                
                            <telerikGrid:GridViewDataColumn  DataMemberBinding="{Binding Name}" >
                                <telerikGrid:GridViewBoundColumnBase.Header  >
                                    <CheckBox IsChecked="False"  Content="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerikGrid:RadGridView}}, Path=DataContext.HeaderName}" />
                                </telerikGrid:GridViewBoundColumnBase.Header>
                            </telerikGrid:GridViewDataColumn>
</telerikGrid:RadGridView >

its shows some time like this

any solution pls send me, very urgent..
thanks
Govind


Govind
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 asked on 27 Dec 2011
2 answers
184 views
Hi team,
  I am using Treeview (Templated Node). I want to confirm that is a child leaves can have multiple parent leaves. If yes kindly explain with example. Here is simple scenario that i want to populate with templated node

A user has two Teamleads, and two team members. In first row there should be teamleads, 2nd row logined user and 3rd row contains team member of logined user.
Now as Teamleads are at top hierarchy, therefore, user has more then one parent. how i will implement this example. Detail cant be found in attached Screen shot 
Kamran
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Iron
Veteran
 answered on 27 Dec 2011
1 answer
155 views

Problem:

 

In my application I am displaying data in grid. I also want a radio button to be inserted in 1 st column. On the selection of that radio button new pop-up screen should appear having details of the selected row.

I am using Telerik:RadGridView to display data . I am able to fetch the data and display.

I am getting around 4000 records fetched, now when i select a radio button and scroll down the selected row is deselected and some other random row gets selected.Sometimes no rows gets selected.

 

Approach followed:

 

 

 

I have followed following approach using virtualization

Inside my RadGridView i worte

 

 

 

VirtualizingStackPanel.IsVirtualizing

 

 

="True"

 

 

 

ScrollMode="RealTime"

 

 

 

VirtualizingStackPanel.VirtualizationMode="Recycling"

 

 

 

 

 

 

 

 

ScrollViewer.IsDeferredScrollingEnabled="True"

 

 

 

 

 

 

and

 

 

 

 

 

 

<telerik:GridViewDataColumn Header="" Width="35" DataMemberBinding="{Binding IsSelected, Mode=TwoWay}">

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

 

 

 

 

<DataTemplate>

 

 

 

 

 

 

 

 

<RadioButton Click="radEditGroup_Click" HorizontalAlignment="Center" Checked="radEditGroup_Checked" IsChecked="{Binding Path=IsSelected, Mode=TwoWay}" x:Name="radEditGroup" GroupName="Groups" />

 

 

 

 

 

 

 

 

</DataTemplate>

 

 

 

 

 

 

 

 

</telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

 

 

 

 

</telerik:GridViewDataColumn>

 

 

 

 

 

 

 

 

 

In .cs file for Checked ="radEditGroup_Checked" i looped through groups and deselected the radio buttons and displayed last checked button value.

 

 

 

private

 

 

void radEditGroup_Checked(object sender, RoutedEventArgs e)

 

{

 

 

try

 

 

 

 

 

 

{

ClearMessage();

 

 

if ((sender as RadioButton) != null &&

 

((sender

 

as RadioButton).DataContext as Groups) != null)

 

{

 

 

var lobjSelectedGroups = from lobGroup in _Groups

 

 

 

where lobGroup.IsSelected == true

 

 

 

 

 

 

 

 

select lobGroup;

 

 

 

if (lobjSelectedGroups != null)

 

{

 

 

foreach (Groups lobGroup in lobjSelectedGroups)

 

{

lobGroup.IsSelected =

 

false;

 

}

}

 

 

this._intGroupID = ((sender as RadioButton).DataContext as Groups).FUNCTION_GRP_ID;

 

 

 

this._intFunctionId = ((sender as RadioButton).DataContext as Groups).Function_Id;

 

(sender

 

as RadioButton).Checked -= radEditGroup_Checked;

 

(sender

 

as RadioButton).IsChecked = true;

 

(sender

 

as RadioButton).Checked += radEditGroup_Checked;

 

}

}

 

 

catch (Exception objEx)

 

{

 

 

ErrorHandling.CatchAllExceptions(objEx);

 

}

}

 

 

 

 

Issue facing:

 

When i am selecting the radio button and scrolling down Checked event gets called and slected row gets deselected.

How can i ensure that the radio button which is checked remain same even when i scoll up and down.

Pavel Pavlov
Telerik team
 answered on 26 Dec 2011
1 answer
113 views
I am using Hiearchial DataTemplates with normal DataTemplate that i saw in one of the forums in here. But i have a problem when the items are displayed properly but it is not expanded when clicked on the items. here is the code that i am using to Display two items at present.
The Link that i saw  this way to display can be found here

XAML:

 

 

 

 

 

<Window.Resources>
        <DataTemplate x:Key="PanelBarItemTemplate">
            <StackPanel Orientation="Vertical">
                <TextBlock Text="{Binding PropertyName}"/>
                <TextBlock Text="{Binding PropertyValue}"/>
                <TextBlock Text="{Binding Comments}"/>
            </StackPanel>
        </DataTemplate>
  
        <HierarchicalDataTemplate x:Key="PanelBarHeaderTemplate"
                           ItemsSource="{Binding Items,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
                           ItemTemplate="{StaticResource PanelBarItemTemplate}">
            <TextBlock Text="{Binding Title}" />
        </HierarchicalDataTemplate>
  
    </Window.Resources>
  
    <Grid>
        <DockPanel>
            <DockPanel DockPanel.Dock="Right" Width="350">
                <Label />
            </DockPanel>
            <DockPanel DockPanel.Dock="Right" VerticalAlignment="Bottom">
                <telerik:RadPanelBar ItemsSource="{Binding AccordionItems,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}" 
                    ItemTemplate="{StaticResource PanelBarHeaderTemplate}" telerik:StyleManager.Theme="Windows7"/>
            </DockPanel>
        </DockPanel>
    </Grid>

C# ViewModel
public class MainViewModel:ViewModelBase
   {
       public MainViewModel()
       {
           _accordionItems = new List<AccoordionHelper>();
           AccordionItems = new List<AccoordionHelper>();
           _accordionItems.Add(new AccoordionHelper("OffFinalBill", new AccordionItemsHelper(){ Comments="hello", PropertyName="Off Final 1: ", PropertyValue= "12121" }));
           _accordionItems.Add(new AccoordionHelper("PartFinal", new AccordionItemsHelper() { Comments = "hello", PropertyName = "Off Final 1: ", PropertyValue = "12121" }));
           AccordionItems = _accordionItems;
       }
       private List<AccoordionHelper> _accordionItems = new List<AccoordionHelper>();
       public List<AccoordionHelper> AccordionItems
       {
           get
           {
               if (_accordionItems == null)
               {
                   _accordionItems = new List<AccoordionHelper>();
               }
               return _accordionItems;
           }
           set
           {
               _accordionItems = value;
               this.RaisePropertyChanged("AccordionItems");
           }
       }
       
        
   }
   public class AccoordionHelper:ViewModelBase
   {
       private string _title;
       public string Title
       {
           get
           {
               return _title;
           }
           set
           {
               _title = value;
               this.RaisePropertyChanged("Title");
           }
       }
       private AccordionItemsHelper _items;
       public AccordionItemsHelper Items
       {
           get
           {
               if (_items == null)
               {
                   _items = new AccordionItemsHelper();
               }
               return _items;
           }
           set
           {
               _items = value;
               this.RaisePropertyChanged("Items");
           }
       }
       public AccoordionHelper( string title, AccordionItemsHelper items)
       {
           Items=items;
           Title = title;
       }
   }
   public class AccordionItemsHelper
   {
       public string PropertyName { get; set; }
       public string PropertyValue { get; set; }
       public string Comments { get; set; }
   }

Petar Mladenov
Telerik team
 answered on 26 Dec 2011
1 answer
157 views
Is there any way to make the Enter key act like the Tab key for navigating between cells in radgridview?
Dimitrina
Telerik team
 answered on 26 Dec 2011
1 answer
206 views
With the ChartView, how can i get/set the zoom and pan values. I figured out the zoom on the actual control, but it doesn't seem to set the correct "zoom" on the "zoom bar". And pan i can't find anywhere.
Giuseppe
Telerik team
 answered on 26 Dec 2011
3 answers
138 views
I'm trying to create a DataForm that uses a RichTextBox as one of the entry fields. My problem comes in when I try to programmatically set the binding of the RichTextBox. Here's what I have:

private void editCabinetForm_AutoGeneratingField(object sender, Telerik.Windows.Controls.Data.DataForm.AutoGeneratingFieldEventArgs e)
        {
            if (e.PropertyName == "CabinetName")
            {
                e.DataField.Label = "Cabinet Name";
            }
            else if (e.PropertyName == "BriefDescription")
            {
                e.DataField.Label = "Brief Description";
            }
            else if (e.PropertyName == "Comments")
            {
                RadRichTextBox commentsBox = new RadRichTextBox();
                //commentsBox.SetBinding(???, new Binding("Comments"));
                e.DataField.Content = commentsBox;
                e.DataField.Label = "Comments";
            }
            else
            {
                e.Cancel = true;
            }
        }

(Comments is a string variable)

I'm not quite sure what to use for the dependency property - any suggestions?
Vanya Pavlova
Telerik team
 answered on 26 Dec 2011
0 answers
82 views
hi all
i update my dataset . when i exit app and start again my new data is there but when i open database i see new data dont apply.
this is my code :

dBVideoArchiveDataSetArchiveTableTableAdapter.Update(dBVideoArchiveDataSet.ArchiveTable);

 

dBVideoArchiveDataSet.AcceptChanges();

 

radGridView1.Rebind();


thankful.
rastin
Top achievements
Rank 1
 asked on 26 Dec 2011
3 answers
140 views
Hi
     I am currenty developing WPF applications which will consume a wcf data service with works with entity framework 4.1 code first . In WPF application I am using Radgridview and RadDataServiceDataSource

   following the code in XAML page
 
              <telerik:RadDataServiceDataSource Height="100" HorizontalAlignment="Left" Margin="208,242,0,0" Name="radDataServiceDataSource1" VerticalAlignment="Top" Width="100" QueryName="Currency" AutoLoad="True" SubmittingChanges="radDataServiceDataSource1_SubmittingChanges">
            <telerik:RadDataServiceDataSource.DataServiceContext >
                <local:MyBaazaarContext/>
            </telerik:RadDataServiceDataSource.DataServiceContext>
        </telerik:RadDataServiceDataSource>
        <telerik:RadGridView Grid.Row="0" ItemsSource="{Binding DataView, ElementName=radDataServiceDataSource1}" IsBusy="{Binding IsBusy, ElementName=radDataServiceDataSource1}" ShowGroupPanel="False" Name="grdDetails"  />
 
When I am making changes in the gridview an calling   radDataServiceDataSource1.SubmitChanges() nothings getting change.


please Help

Thanks In Advance
Rossen Hristov
Telerik team
 answered on 26 Dec 2011
0 answers
78 views
hi there,

in row_loaded method, we create a multibinding for background. converter is not called in first run.

-populate table (set binding in row_loaded)

-set background on viewmodel

-converter not called.

-clear table

-populate table (again create binding)

-set background, then it is called.

While in debug, when I checked PropertChanged.Target, in first run it is System.ComponentModel.PropertyChangedEventManager  (doesnt work),
and in the second run, it is Telerik.Windows.Data.WeakEvent.WeakListener<System.ComponentModel.PropertyChangedEventArgs>.


Telerik version : 2011.1.411.40


MultiBinding multiBindingBackground = new MultiBinding();
                        multiBindingBackground.Converter = cellColorConverter;
 
 
                        Binding background = new Binding("Background");
                        background.Source = row.Item;                       
                        background.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
                        //background.Mode = BindingMode.TwoWay;
                        multiBindingBackground.Bindings.Add(background);
                        multiBindingBackground.Bindings.Add(rcBinding);
                        Binding isBackgroundForBackground = new Binding();
                        isBackgroundForBackground.Source = true;
                        multiBindingBackground.Bindings.Add(isBackgroundForBackground);
                        multiBindingBackground.Bindings.Add(new Binding());
                        cellBase.SetBinding(GridViewCellBase.BackgroundProperty, multiBindingBackground);
CEM
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 asked on 26 Dec 2011
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