Questions on UI for WPF Forum

1 answer

128 views

How to Filter values that equals to null

Hi, Data Filter has many filter condtion such as " Is Equal To", "Contains", "Not Contained In" and so on.
Does it support "Has Value" to filter those value is not null?
If not, can I extend it myself to do it? How?

DataFilter

answered on 14 Jun 2011

7 answers

281 views

GridView FilterControl Hide 'Match Case'

Hello,

I need to hide the 'Match Case' from the FilterControl in the RadGridView as im using it for different language than english.
Is there a way to accomplish that?

Thanks,

GridView

answered on 14 Jun 2011

3 answers

101 views

RadGrid is Sqeezing when populated large data.

Hi All,

I am working on WPF 4.0 and using telerik grid in it.

The following Style i have applied for the Radgridview in my application.

<Style TargetType="telerik:GridViewHeaderCell">

<Setter Property="Background" Value="{StaticResource MainHeaderColor}"/>

<Setter Property="BorderBrush" Value="#D4D6D6"/>

<Setter Property="BorderThickness" Value="1"/>

<Setter Property="VerticalContentAlignment" Value="Center" />

<Setter Property="HorizontalContentAlignment" Value="Center" />

</Style>

<Style x:Key="GridViewHeaderRowStyle" TargetType="{x:Type telerik:GridViewHeaderRow}">

<Setter Property="Background" Value="White"/>

<Setter Property="BorderBrush" Value="#D4D6D6"/>

</Style>

<Style x:Key="AlternateRowStyle" TargetType="{x:Type telerikGridView:GridViewRow}">

<Setter Property="Background" Value="#E3F0F9" />

<Setter Property="BorderBrush" Value="#D4D6D6" />

</Style>

<Style x:Key="GridViewRowStyle" TargetType="{x:Type telerikGridView:GridViewRow}">

<Setter Property="Background" Value="White" />

<Setter Property="BorderBrush" Value="#D4D6D6" />

</Style>

<Style x:Key="DataCellsPresenter" TargetType="{x:Type telerik:GridViewHeaderRow}">

<Setter Property="Background" Value="{StaticResource MainBackgroundColor}" />

<Setter Property="BorderBrush" Value="#D4D6D6" />

</Style>

<DataTemplate x:Key="GridViewHeaderIndentCellDataTemplate">

<telerik:GridViewHeaderIndentCell BorderBrush="#D4D6D6"/>

</DataTemplate>

<DataTemplate x:Key="GridViewHeaderIndicatorPresenterTemplate">

<telerik:IndicatorPresenter x:Name="PART_IndicatorPresenter"

Background="{StaticResource MainBackgroundColor}"

BorderBrush="{StaticResource SeperatorColor}"

BorderThickness="1"

Grid.Column="0" HorizontalAlignment="Left"

Width="24"/>

</DataTemplate>

<Style TargetType="{x:Type telerik:RadGridView}">

<Setter Property="HeaderRowStyle" Value="{DynamicResource GridViewHeaderRowStyle}"/>

<Setter Property="AlternateRowStyle" Value="{DynamicResource AlternateRowStyle}"/>

<Setter Property="IsFilteringAllowed" Value="false"/>

<Setter Property="RowStyle" Value="{DynamicResource GridViewRowStyle}"/>

<Setter Property="GridLinesVisibility" Value="Both"/>

<Setter Property="Cursor" Value="Hand"/>

<Setter Property="Background" Value="White" />

<Setter Property="VerticalGridLinesBrush" Value="#D4D6D6"/>

<Setter Property="HorizontalGridLinesBrush" Value="#D4D6D6"/>

<Setter Property="RowIndicatorVisibility" Value="Collapsed"/>

<Setter Property="AlternationCount" Value="2"/>

<Setter Property="VerticalAlignment" Value="Top"/>

<Setter Property="HorizontalAlignment" Value="Center"/>

<Setter Property="ShowGroupPanel" Value="False"/>

<Setter Property="AutoGenerateColumns" Value="False"/>

<Setter Property="IsReadOnly" Value="True"/>

<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>

<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>

<Setter Property="IsScrolling" Value="false"/>

<Setter Property="Margin" Value="0,0,0,0"/>

</Style>

Now when I am using this Radgrid in my application and opening the screen then at that time the grid first squeeze and then open up in the screen withits full width.In some screens its also giving a jerking effect and then opening properly.

Kindly let me know why is it happening so ?

Thanks in advance !!!!!!

GridView

answered on 14 Jun 2011

2 answers

141 views

Can't type comma in filter-popup

I have a RadGridView where one of the columns is of type decimal. I want to be able to filter that by decimal numbers, but it's impossible to type commas in the textboxes in the filtering popup.

The filtering itself works fine. I've tried to apply a filter with a decimal (0.5) with code and it works: the correct rows are displayed and the rest are hidden. But when I did this the textbox in the popup displayed '0' and not '0.5'.

Why is this and is there any way around this? Is it a bug or is it by design? Hopefully it is not by design because that would render the filtering useless in my case since all my numbers are less than 1...

GridView

answered on 14 Jun 2011

4 answers

335 views

How to set selected item to new row on insert button click event

Hi
Please let me know how to set new row as selected item of the grid through AddingNewDataItem event as early as possible

Swathi.

GridView

answered on 14 Jun 2011

1 answer

139 views

Parent grid cannot be null

Hi,

I am facing this exception while trying to select an item on the grid view. It is happening very intermittently and we are not able to reproduce it in development environment, I have attached the full exception.


Unhandled WPF Error [(null)]
System.ArgumentNullException: Parent grid cannot be null Parameter name: parentRadGridViewPeer
   at Telerik.Windows.Controls.GridView.Automation.GridViewCellAutomationPeer..ctor(GridViewCell owner, RadGridViewAutomationPeer parentRadGridViewPeer)
   at Telerik.Windows.Controls.GridView.GridViewCell.OnCreateAutomationPeer()
   at System.Windows.UIElement.CreateAutomationPeer()
   at System.Windows.Automation.Peers.UIElementAutomationPeer.CreatePeerForElement(UIElement element)
   at System.Windows.Automation.Peers.AutomationPeer.AutomationPeerFromInputElement(IInputElement focusedElement)
   at System.Windows.Automation.Peers.AutomationPeer.RaiseFocusChangedEventHelper(IInputElement newFocus)
   at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)
   at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew)
   at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)
   at System.Windows.UIElement.Focus()
   at Telerik.Windows.Controls.GridView.EditContext.ChangeVisualState(GridViewCell cell)
   at Telerik.Windows.Controls.GridView.EditContext.TryMakeCellCurrent(GridViewCell cell)
   at Telerik.Windows.Controls.GridView.GridViewCell.IsCurrentChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.GridView.GridViewCell.set_IsCurrent(Boolean value)
   at Telerik.Windows.Controls.GridView.EditContext.OnCellMouseDown(GridViewCell cell)
   at Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

My current grid version is : 2009.2.813.35

GridView

answered on 14 Jun 2011

1 answer

144 views

Data is not displayed in correct time location

I am using the TimeBar control to display some data and it seems like the data is being shifted somewhat.
For instance, the data I am loading has the spike at 8 PM on the 21st instead of early on the 22nd.

TimeBar

answered on 14 Jun 2011

1 answer

145 views

ChildTableDefinition using c#/VB

I want this above code to be writen in c# rather then using XAML, anyone knows how to do this?
<telerik:RadTreeListView x:Name="radTreeListView">
   <telerik:RadTreeListView.ChildTableDefinitions>
       <telerik:TreeListViewTableDefinition ItemsSource="{Binding Items}">
       </telerik:TreeListViewTableDefinition>
   </telerik:RadTreeListView.ChildTableDefinitions>
</telerik:RadTreeListView>

Thanks,
Faheem

TreeListView

answered on 13 Jun 2011

4 answers

202 views

RadGridView DateTime Column Filter Problem

I am using a radgridview to show a list of data on a day by day basis, and one of the columns is a DateTime column representing the date that each line was created.

The issue that I face is this. The column in question shows the full date and time (down to the second). When you open the filter control for that column however, in the section where you can check individual unique values, it does NOT display down to the second, which makes it impossible to pick the specific ones you want.

Is there a way to adjust the filter to display the seconds as well as everything else?

Thanks

GridView

answered on 13 Jun 2011

5 answers

1.4K+ views

Binding to content control

I'm relatively new to WPF and currently evaluating Telerik components. I got stuck when trying to bind RadTabControl items to content control objects. Probably the automatically generated RadTabItem doesn't like to wrap a content control (e.g. HeaderedContentControl) because regular objects work as expected. Am I trying to accomplish something that can't be done? Below you'll find a example that illustrates what I mean. Any help will be appreciated very much.

XAML:

<Window x:Class="RadControlsWpfApp1.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:local="clr-namespace:RadControlsWpfApp1"

xmlns:diagnostics="clr-namespace:System.Diagnostics;assembly=WindowsBase"

Title="MainWindow" Height="350" Width="525">

<Window.Resources>

<DataTemplate x:Key="TabItemTemplate">

<StackPanel Orientation="Horizontal" VerticalAlignment="Center">

<Image Width="18" Height="18" Source="{Binding Icon}" Stretch="Fill" Margin="0,0,3,0" />

<TextBlock Text="{Binding Header, diagnostics:PresentationTraceSources.TraceLevel=High}"/>

</StackPanel>

</DataTemplate>

</Window.Resources>

<Grid>

<telerik:RadTabControl

ItemsSource="{Binding Tabs}"

ItemTemplate="{StaticResource TabItemTemplate}" />

</Grid>

</Window>

Code behind:

using System.Windows;

namespace RadControlsWpfApp1

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

DataContext = new MainWindowViewModel();

InitializeComponent();

}

View model:

using System;

using System.Collections.ObjectModel;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using Telerik.Windows.Controls.QuickStart;

namespace RadControlsWpfApp1

{

public class MainWindowViewModel

{

private BitmapImage Bullet = new BitmapImage(new Uri("/RadControlsWpfApp1;component/bullet_red.png", UriKind.Relative));

public ObservableCollection<IItem> Tabs { get; set; }

public MainWindowViewModel()

{

Tabs = new ObservableCollection<IItem>();

Tabs.Add(new ItemControl { Header = "Item 1", Icon = Bullet });

Tabs.Add(new Item { Header = "Item 2", Icon = Bullet });

}

public interface IItem

{

object Header { get; set; }

ImageSource Icon { get; set; }

}

public class Item : IItem

{

public object Header { get; set; }

public ImageSource Icon { get; set; }

}

public class ItemControl : HeaderedContentControl, IItem

{

public ImageSource Icon { get; set; }

}

TabControl

answered on 13 Jun 2011