Questions on UI for WPF Forum

4 answers

127 views

Hello,

I am getting below exception can any one help me on this.its a bit urgent

STACK-TRACE
   at System.Windows.Rect.set_Width(Double value)
   at Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.MakeVisible(Visual visual, Rect rectangle)
   at System.Windows.Controls.ScrollViewer.ExecuteNextCommand()
   at System.Windows.Controls.ScrollViewer.OnLayoutUpdated(Object sender, EventArgs e)
   at System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(Object resizedCompositionTarget)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
INNER EXCEPTION
Width must be non-negative.
STACK-TRACE
   at System.Windows.Rect.set_Width(Double value)
   at Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.MakeVisible(Visual visual, Rect rectangle)
   at System.Windows.Controls.ScrollViewer.ExecuteNextCommand()
   at System.Windows.Controls.ScrollViewer.OnLayoutUpdated(Object sender, EventArgs e)
   at System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(Object resizedCompositionTarget)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
*****************END******************

GridView

answered on 23 Jun 2011

1 answer

169 views

Unable to hide minor ticks

I'm trying to show only the major ticks and hide all the minor ticks between them, I have set the following properties in my xaml file:
On the AxisX, I set AutoRange="False", MinorTicksVisibility="Hidden", yet all the minor ticks are still showing up. Suggestions?

<chart:ChartArea Grid.Row="1" x:Name="mainChartArea" LegendName="legend">

<chart:ChartArea.AxisX >

<chart:AxisX MajorGridLinesVisibility="Collapsed" IsDateTime="True" DefaultLabelFormat = "dd-MMM"

Title="Date" MinorTickPointMultiplier="0" AutoRange="False" MajorTicksVisibility="Visible"

AxisLabelsVisibility="Visible" MinorTicksVisibility="Hidden" />

</chart:ChartArea.AxisX>

</chart:ChartArea>

Chart

answered on 23 Jun 2011

1 answer

535 views

Show 24 hour in RadTimePicker

How I can show 24 hour in RadTimePicker? Thanks!

TimePicker

answered on 23 Jun 2011

1 answer

80 views

Grid ist after added new item empty

Hello.

I have a Test UC within a simple WPF-Grid an for test a Telerik RadGridView.When i added a new item, in the WPF-Grid, the Item is there, but in the Telerik Grid is after that empty. It shows new rows, but they are still empty (nothing is displayed.)

My Text xaml:

<UserControl x:Class="KfzOrtung6.Modells.UserControl1"

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

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

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

mc:Ignorable="d"

d:DesignHeight="498" d:DesignWidth="924"

xmlns:my="clr-namespace:KfzOrtung6DataClasses.Modells;assembly=KfzOrtung6DataClasses"

Loaded="UserControl_Loaded"

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

<UserControl.Resources>

<CollectionViewSource x:Key="fahrzeugeViewSource" d:DesignSource="{d:DesignInstance my:Fahrzeuge, CreateList=True}" />

</UserControl.Resources>

<Grid DataContext="{StaticResource fahrzeugeViewSource}">

<DataGrid AutoGenerateColumns="False" EnableRowVirtualization="True" Height="88" HorizontalAlignment="Left" ItemsSource="{Binding}" Margin="32,28,0,0" Name="fahrzeugeDataGrid" RowDetailsVisibilityMode="VisibleWhenSelected" VerticalAlignment="Top" Width="654">

<DataGrid.Columns>

<DataGridTemplateColumn x:Name="ablaufsimkarteColumn" Header="Ablaufsimkarte" Width="SizeToHeader">

<DataGridTemplateColumn.CellTemplate>

<DataTemplate>

<DatePicker SelectedDate="{Binding Path=Ablaufsimkarte, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true}" />

</DataTemplate>

</DataGridTemplateColumn.CellTemplate>

</DataGridTemplateColumn>

<DataGridTextColumn x:Name="aktivColumn" Binding="{Binding Path=Aktiv}" Header="Aktiv" Width="SizeToHeader" />

<DataGridTextColumn x:Name="bemerkungColumn" Binding="{Binding Path=Bemerkung}" Header="Bemerkung" Width="SizeToHeader" />

<DataGridTextColumn x:Name="iDColumn" Binding="{Binding Path=ID}" Header="ID" Width="SizeToHeader" />

<DataGridTextColumn x:Name="kennzeichenColumn" Binding="{Binding Path=Kennzeichen}" Header="Kennzeichen" Width="SizeToHeader" />

<DataGridTemplateColumn x:Name="nameColumn" Header="Name" Width="SizeToHeader">

<DataGridTemplateColumn.CellTemplate>

<DataTemplate>

<ComboBox>

<ComboBoxItem Content="{Binding Path=Name}" />

</ComboBox>

</DataTemplate>

</DataGridTemplateColumn.CellTemplate>

</DataGridTemplateColumn>

<DataGridTextColumn x:Name="rufnummerColumn" Binding="{Binding Path=Rufnummer}" Header="Rufnummer" Width="SizeToHeader" />

</DataGrid.Columns>

</DataGrid>

<telerik:RadGridView x:Name="mygrid" Margin="32,136,0,35"

ItemsSource="{Binding}" HorizontalAlignment="Left" Width="654">

</telerik:RadGridView>

<Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="795,162,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />

</Grid>

</UserControl>

My cs:

using System;

using System.Collections.Generic;

using System.Data.Entity;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using KfzOrtung6DataClasses.Modells;

namespace KfzOrtung6.Modells

{

/// <summary>

/// Interaktionslogik für UserControl1.xaml

/// </summary>

public partial class UserControl1 : UserControl

{

KfzContext6 kt = new KfzContext6();

public UserControl1()

{

InitializeComponent();

}

private void UserControl_Loaded(object sender, RoutedEventArgs e)

{

kt.MFahrzeuge.Load();

var cc = kt.MFahrzeuge.Local;

// Laden Sie Ihre Daten nicht zur Entwurfszeit.

//if (!System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))

//{

// //Laden Sie hier Ihre Daten, und weisen Sie das Ergebnis der CollectionViewSource zu.

CollectionViewSource myCollectionViewSource = (CollectionViewSource)this.Resources["fahrzeugeViewSource"];

myCollectionViewSource.Source = cc;

//}

}

private void button1_Click(object sender, RoutedEventArgs e)

{

Fahrzeuge fz = new Fahrzeuge

{

ID = Guid.NewGuid(),

Name = "LKW Test 2",

Kennzeichen = "Sad-Br-505",

Ablaufsimkarte = new DateTime(2000, 1, 1),

Rufnummer = "",

Aktiv = 1

};

kt.MFahrzeuge.Add(fz);

kt.SaveChanges();

mygrid.Items.Refresh();

}

Please can you help?

Reinhard

GridView

answered on 22 Jun 2011

1 answer

398 views

disable only parent item (not child items) in hierarchial tree

i have the following tree:
----------------------------------
a
1
2
b
c
1
2
-------------------------------
is it possible to disable parent a and NOT disable child 1 and child 2?
because isEnabled property disable a,1,2 altogether?

is it possible to disable selection of parent a
(and not affect children selection)?

thank you!
Rachel

TreeView

answered on 22 Jun 2011

3 answers

147 views

Any plans for porting RadUpload to WPF?

Hello,
I was wondering if there was any plans to have full parity between WPF and Silverlight for Telerik components as i'm currently writing a WPF LoB application that requires file upload and am about to roll my own. Should i go all the way with polish or is there something coming from telerik about this and should i do a bare minimum expecting to replace my component with it?
Thanks.

General Discussions

answered on 22 Jun 2011

0 answers

119 views

Binding problems by using a RadGridView in a RadComboBox

Hello,

i am using a RadGridview with sample data in a combobox popup.

<Popup x:Name="PART_Popup" Margin="0,1,0,0">

<Border BorderBrush="#FF595959" BorderThickness="1" Background="#FF3D3D3D"

MaxHeight="{TemplateBinding MaxDropDownHeight}"

MinWidth="{TemplateBinding MinDropDownWidth}">

<telerik:RadGridView x:Name="RadGridView1"

ShowGroupPanel="False" CanUserFreezeColumns="False"

RowIndicatorVisibility="Collapsed" IsReadOnly="True"

IsFilteringAllowed="True" ItemsSource="{Binding Dokumente}"

MaxWidth="500" MaxHeight="400"

SelectedItem="{Binding SelectedItem, Mode=TwoWay}">

</telerik:RadGridView>

</Border>

</Popup>

The ItemSource of my RadGridView is a sample data element which fills the RadGridView with data. RadGridViewInComboBox

My problem is, that i can not bind the value of an selected Cell/Row to the ComboBox text.

In the example from Vladimir Enchev, the binding works, but the data of the GridView is not from sample data.
http://blogs.telerik.com/vladimirenchev/posts/10-04-09/how_to_filter_as_you_type_radgridview_inside_radcombobox_for_wpf_and_silverlight.aspx

Can you give me a solution for my Problem?

Greetings Michael

ComboBox

asked on 22 Jun 2011

1 answer

99 views

Export to excel in a Hierarchical grid

Hi Telerik Team,

It would be very grateful if you could you please share a demo project for exporting of a hierarchical grid having levels greater than 2. Exporting it to an excel.

Thanks,
Regards,
Mausami

GridView

answered on 22 Jun 2011

3 answers

164 views

Support for filtering with a VirtualizedStackPanel (or workaround)

Hello,

I have a very common problem that I have seen referred to multiple times in this forum.

My RadComboBox (Q1 2011) has several thousand items in it, and opening the dropdown is very sluggish and sometimes unusable. Using the VirtualizedStackPanel allows the dropdown to run blazing-fast, but of course I lose the ability to filter (as documented and mentioned in other forum posts).

The problem is that it is absolutely crucial that I'm able to perform filtering and have the speed provided by the VirtualizedStackPanel. All forum replies are unclear as to whether you plan on supporting this in the future. In the meantime, I was hoping that you could point me to a reasonable solution.

I did find a solution deep in your documentation that went so far as to use some kind of Google search provider, but the implementation was very involved.

Is there a simple way to mimick filtering behavior with a VirtualizedStackPanel? I'm open to just about anything at this point.

Thanks for your time,
Jon

ComboBox