I have a couple of buttons embedded in a header column of my radgridview that is in a usercontrol that is in a pane of a raddock. I am trying to bind the IsVisible property of the button to a property of my MainWindows' view model. Below is the relevant xaml. See line 7 of the xaml. I can't seem to get the binding right. What's the right way to bind this property to the MainWindow's viewmodel property? Obviously, I'm not seeing it.

Any help would be great!!!

Here is the error I get in my command window of vstudio.:

     System.Windows.Data Error: 4 : Cannot find source for binding with reference      'RelativeSource FindAncestor, AncestorType='System.Windows.Window',      AncestorLevel='1''. BindingExpression:Path=DataContext.EnableRowDetailsButton;      DataItem=null; target element is 'Button' (Name='cmdAddNewSample'); target property is     'IsEnabled' (type 'Boolean')

 

Hi Team,

 

I have to use AutoCompleteBox with multiple items, but I need to add some custom text between each selected items.

For an example, if the AutoCompleteBox is bound with following items like FileName, ReceivedDate, FileSize, etc., And the AutoCompleteBox with custom text and the selected items with cross buttons like below.

"File name is {FileName} and it is received on {ReceivedDate}"

 

Does this possible in AutoCompleteBox?

 

Regards,

Sathya

Hi Telerik ,

i have some problem to find a solution here for ..
first i am using RadGridView + MVVM + QueryableCollectionView.

The "pattern" is like this
My ViewModel  has a property named "Nodes" which is a derived class of  QueryableCollectionView which i am using because of paging feature.
The Problem i have is that the QueryableCollectionView is a wrapper for a IQueryable sourceCollection which is only set by constructor and there is not setter
for the wrapped source collection after its constructed.

So ok, i have done a workaround and creating a new Instance during RT of QueryableCollectionView with correct IQueryable parameter ( which by the way i do not have before ) and
set my ViewModel "Nodes" property to this new instance.

This works and i can see the Data correctly also paging works because the Grid gets notified about the change. ( it looks like so !)

In the "Nodes" Class i also have a "Command" property which is an Instance of a CommandProviderClass derived from prism.mvvm BindableBase ( which implements INotifyPropertyChanged )
and additionaly encapsulates a lot of other possible commands for Insert/Update/Delete .

And this "Command" property also gets replaced by the  "newer" instance of "Nodes" because the Nodes Class holds this property.
My ViewModel has a wrapper to this Nodes.CommandProvider

BUT ...


So now my Problem is raised during the Event "RowValidating" i found that the  User Control is still bound to old CommandProvider.DoValidatingRow 

because   

public ICommand DoValidatingRow { get; set; } // On Validate a Row
.... is initialized with
DoValidatingRow = new DelegateCommand<object>(OnValidatingRow);
 
But ICommand and DelegateCommand (Prism.Commands) Class have no INotifyPropertyChanged Contract defined.
 
<telerik:EventBinding Command="{Binding CommandProvider.DoValidatingRow}" EventName ...

i already also called on my VM   this.RaisePropertyChanged(""); before the validation is called but no effect. It´s doesn´t change!

A) So my main Question is how can i tell the User Control to refresh all of it´s bounded Class Instances ?

B) Maybe is there another solution to replace the wrapped Source Collection in QueryableCollectionView , because this will solve the original problem ?

thanks br thomas cinatl


        <telerik:RadGridView x:Name="LookupListGridCtrl" ItemsSource="{Binding Nodes, Mode=TwoWay}" SelectedItem="{Binding Nodes.SelectedUiDataItem,Mode=TwoWay}"  Grid.Row="1"
                             AutoGenerateColumns="false" GroupRenderMode="Flat" NewRowPosition="Top" SelectionMode="Single" SelectionUnit="FullRow"
                             CanUserDeleteRows="True" ScrollMode="Deferred" IsSynchronizedWithCurrentItem="True" CanUserResizeColumns="True" CanUserSearch="True"
                             RowIndicatorVisibility="Visible" Margin="0,0,0,1" ValidationType="Default"
                             FilteringMode="FilterRow" ShouldCloseFilteringPopupOnKeyboardFocusChanged="True"
        >
 
            <telerik:EventToCommandBehavior.EventBindings>
                <telerik:EventBinding Command="{Binding CommandProvider.DoDeleteRow}" EventName="Deleted" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoInsertRow}" EventName="RowEditEnded" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoAddNew}" EventName="AddingNewDataItem" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoValidatingCell}" EventName="CellValidating" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoValidatingRow}" EventName="RowValidating" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
                <telerik:EventBinding Command="{Binding CommandProvider.DoSelectionChanging}" EventName="SelectionChanging" RaiseOnHandledEvents="True" PassEventArgsToCommand="True" />
            </telerik:EventToCommandBehavior.EventBindings>







 

Hello,

We are playing with the interactive form pdf and when you are in the field editing the text and then we go to save the document the field has not yet been updated with the new value.  Is there a way to force them out of the field editing and update the text of the field when they click the save button?

Thanks,

Brandon

Being new to Telerik controls I'm struggling to get RadGridView to populate automatically with SQL query collection.
I have some questions to understand what can and cannot be done and go from there:
I have a SQL query result collection contains over 4,000 records is there a way to set dump the datatable directly into the RadGridView with "AutoGenerateColumns="True"",
or do i have to iterate through all the rows?
Secondly I have the RadGridView in a tab of a RadPaneGroup. Which action should I use to only call the RadGridView population when its tab is selected?

Hi,

I try to change text of "Grand Total" with Localization Manager, set the localization for "Pivot_GrandTotal", but nothing happened. Other text, such as "Pivot_AggregateSum", "Pivot_AggregateCount", and other are translated successfully, but "Pivot_GrandTotal" not.

Could you help me?

Thanks

I am using the telerik library with version 2017.3.1018.45.
At the moment I'm struggling with a drag & drop implementation between a RadGridView and RadTreeView. A row must be draggable from the RadGridView to the RadTreeView only.
The drag & drop from the grid to the tree works perfectly. Unfortunately it is also possible to drop elements from the grid on the grid itself. The Effects property of GiveFeedBackEventArgs in OnGiveFeedback() is Move when staying with the mouse over the grid. It should be None though.

Setting AllowDrop=false on the grid does not make a difference.
I as well tried to disallow dropping before the mouse pointer leaves the grid - using OnDragLeave - but it fires as well when the pointer still is over the grid.
Another approach is to compare the source and destination when dropping. It does not seem possible though to figure out the drop destination in the OnDrop or OnDragDropCompleted events.

How can I omit dropping a grid element on the same grid?

The shape's minheight is 60, The name of the object displays on the bottom of the shape, when  zoom out the  shape,  the name string may word wrap,  so the shape's minheight  is increase by a new line's height,   but when resizeing, the minheight of the bounds is not change,

how to solve this problem？

thanks！

Hi,

Is there a way to get the RadCalculatorPicker to display a cursor during input?  Right now, whatever user types shows in the TextBlock but it does not offer user the same look & feel as a regular input control.

Thanks.

Rubens.

Hi,

My application it's using the diagram and i needed to override the SelectAll() command since i have a special shape in the diagram i dont want to get deleted. This is the first shape added to the diagram. So diagram.Items[0].

I've created the newbinding as follows

 var controlAllBinding = new CommandBinding(DiagramCommands.SelectAll, OnSelectAllExecute, OnCanSelect);            CommandManager.RegisterClassCommandBinding(typeof(PatternDiagram), controlAllBinding);

And the implementation

  private static void OnSelectAllExecute(object sender, ExecutedRoutedEventArgs e)
        {
            var diagram = (sender as PatternDiagram);
            diagram.SelectAll();
            (diagram.Items[0] as RadDiagramShape).IsSelected = false; //This works
            (diagram.Items[1] as RadDiagramShape).IsSelected = false; //This works
        }

        private static void OnCanSelect(object sender, CanExecuteRoutedEventArgs e)
        {
            e.canExecute = true;

            e.Handled = true;
        }

 

However there are a few other items that are not RadDiagramShapes but they inherited from it (ProductShape : RadDiagramShape), there are 2 kinds of this products, the ones that are enabled and the ones that are disabled using the IsEnabled property.

So:

- 2 RadDiagramShapes (Rectangles) [CANNOT BE DELETED]

- 3 ProductShapes (IsEnabled = true) [SHOULD BE DELETED AND SELECTABLE]

- 3 ProductShapes (IsEnabled = false) [SHOULD NOT BE DELETED]

If i try to use a foreach inside the diagram.Items or diagram.SelectedItems and after that i try to check which ones are disabled and when i get them i try to use IsSelected = false (because i dont want them to be selected or deleted) it is not working.

I've tried to modify CanSelect, SelectAll, CanDelete, DeleteExecute, PreviewSelectionChange, SelectionChange with no luck.

Is there maybe about the ProductShape class that is not working? The class only has 2 properties and a predefined style.

 

Is there any way i can achieve this?

Thanks