Questions on UI for WPF Forum

25,590 questions

4 answers

120 views

Tooltips dissapears after changeing cell

Hi is there a fault in the tooltips for the gridview/treelistview ?

Whenever I change the value of the cell the tooltip for the cell becomes null, the fault is also in your example
home->controls->data->gridview->datatemplateselectors->cell tooltips.

This is my code

private void grid_CellLoaded(object sender, CellEventArgs e)

{

ToolTip tip = new ToolTip();

tip.Content = "hello world";

//e.Cell.ToolTip = tip; -> I've tryed this and the line below.

ToolTipService.SetToolTip(e.Cell, tip);

}

I'm using the newest version of the telerik dll's.
Is there any fix or workaround ?

Best regards
Kristján.

GridView

answered on 24 Mar 2011

1 answer

107 views

Styling GridViewRow results in scrolling not working

I have a very simple sample, where have a RadGridView bound to an ObservableCollection. The only thing extra that I am doing is taking the default ControlTemplate for RadGridViewRow and putting it into the Window.Resources, WITHOUT changing the default template at all. When I do this, if I try to press PageDown to scroll down vertically, the grid ends up scrolling down a page or two and then just stops.

Here's the sample:

<Window x:Class="WPFSpike2.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:Controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" Title="MainWindow" Height="350" Width="525">

<Window.Resources>

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

<Setter Property="IsTabStop"

Value="False" />

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="{x:Type telerik:GridViewRow}">

<Border BorderBrush="{TemplateBinding BorderBrush}"

BorderThickness="{TemplateBinding BorderThickness}">

<telerik:SelectiveScrollingGrid x:Name="grid">

<telerik:SelectiveScrollingGrid.ColumnDefinitions>

<ColumnDefinition Width="Auto" />

<ColumnDefinition Width="*" />

</telerik:SelectiveScrollingGrid.ColumnDefinitions>

<telerik:SelectiveScrollingGrid.RowDefinitions>

<RowDefinition Height="*" />

<RowDefinition Height="Auto" />

</telerik:SelectiveScrollingGrid.RowDefinitions>

<Border x:Name="SelectionBackground"

Background="{TemplateBinding Background}"

Grid.ColumnSpan="2"

Grid.Column="2"

Margin="{TemplateBinding Margin}"

Padding="{TemplateBinding Padding}"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True"

VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />

<Border x:Name="Background_Over"

BorderBrush="#FFFFC92B"

BorderThickness="1"

Grid.ColumnSpan="2"

Grid.Column="2"

CornerRadius="1"

Margin="1,1,1,2"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True"

Visibility="Collapsed">

<Border BorderBrush="White"

BorderThickness="1">

<Border.Background>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="#FFFFFBA3"

Offset="1" />

<GradientStop Color="#FFFFFBDA"

Offset="0" />

</LinearGradientBrush>

</Border.Background>

</Border>

<Border x:Name="Background_Selected"

BorderBrush="#FFFFC92B"

BorderThickness="1"

Grid.ColumnSpan="2"

Grid.Column="2"

CornerRadius="1"

Margin="1,1,1,2"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True"

Visibility="Collapsed">

<Border BorderBrush="White"

BorderThickness="1">

<Border.Background>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="#FFFCE79F"

Offset="1" />

<GradientStop Color="#FFFDD3A8" />

</LinearGradientBrush>

</Border.Background>

</Border>

<Border x:Name="Background_Invalid"

BorderBrush="#FFCE7D7D"

BorderThickness="1"

Grid.ColumnSpan="2"

Grid.Column="2"

CornerRadius="1"

Margin="1,1,1,2"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True"

Visibility="Collapsed">

<Border BorderThickness="1">

<Border.BorderBrush>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="#FFEBF4FD" />

<GradientStop Color="#FFDBEAFD"

Offset="1" />

</LinearGradientBrush>

</Border.BorderBrush>

<Border.Background>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="#FFFCDCDC" />

<GradientStop Color="#FFFCC1C1"

Offset="1" />

</LinearGradientBrush>

</Border.Background>

</Border>

<telerik:GridViewToggleButton x:Name="PART_HierarchyExpandButton"

Grid.Column="2"

IsHitTestVisible="{Binding IsExpandable, RelativeSource={RelativeSource TemplatedParent}}"

IsTabStop="{TemplateBinding IsTabStop}"

IsChecked="{Binding IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"

telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"

Width="25">

<telerik:GridViewToggleButton.Opacity>

<Binding Path="IsExpandable"

RelativeSource="{RelativeSource TemplatedParent}">

<Binding.Converter>

<telerik:BooleanToOpacityConverter />

</Binding.Converter>

</Binding>

</telerik:GridViewToggleButton.Opacity>

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme />

</telerik:StyleManager.Theme>

<telerik:GridViewToggleButton.Template>

<ControlTemplate TargetType="{x:Type telerik:GridViewToggleButton}">

<Border Background="Transparent"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch">

<Border BorderBrush="{TemplateBinding BorderBrush}"

BorderThickness="{TemplateBinding BorderThickness}"

Background="{TemplateBinding Background}"

HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

Height="9"

VerticalAlignment="{TemplateBinding VerticalContentAlignment}"

Width="9">

<Grid>

<Path x:Name="plus"

Data=

"M1.937,0L2.937,0 2.937,2.0209999 5,2.0209999 5,3.0209999 2.937,3.0209999 2.937,5 1.937,5 1.937,3.0209999 0,3.0209999 0,2.0209999 1.937,2.0209999z"

Fill="Black"

Height="5"

Margin="{TemplateBinding Padding}"

Stretch="Fill"

Stroke="{x:Null}"

Width="5" />

<Rectangle x:Name="minus"

Fill="Black"

HorizontalAlignment="Center"

Height="1"

Margin="{TemplateBinding Padding}"

Opacity="0"

RadiusY="0"

RadiusX="0"

Stroke="{x:Null}"

VerticalAlignment="Center"

Width="5" />

</Grid>

</Border>

<ControlTemplate.Triggers>

<Trigger Property="IsChecked"

Value="True">

<Setter Property="Opacity"

TargetName="plus"

Value="0" />

<Setter Property="Opacity"

TargetName="minus"

Value="1" />

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</telerik:GridViewToggleButton.Template>

<telerik:GridViewToggleButton.Visibility>

<Binding Path="HasHierarchy"

RelativeSource="{RelativeSource TemplatedParent}">

<Binding.Converter>

<telerik:BooleanToVisibilityConverter />

</Binding.Converter>

</Binding>

</telerik:GridViewToggleButton.Visibility>

</telerik:GridViewToggleButton>

<Border Grid.Column="2"

telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical">

<Border.Visibility>

<Binding Path="HasHierarchy"

RelativeSource="{RelativeSource TemplatedParent}">

<Binding.Converter>

<telerik:BooleanToVisibilityConverter />

</Binding.Converter>

</Binding>

</Border.Visibility>

</Border>

<telerik:DataCellsPresenter x:Name="PART_DataCellsPresenter"

Grid.Column="3"

IsTabStop="False">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme />

</telerik:StyleManager.Theme>

</telerik:DataCellsPresenter>

<Border x:Name="PART_RowBorder"

BorderBrush="{TemplateBinding HorizontalGridLinesBrush}"

Grid.ColumnSpan="4"

Grid.Column="1"

Grid.RowSpan="4"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True"

VerticalAlignment="Bottom">

<Border.BorderThickness>

<Binding ConverterParameter="Bottom"

Path="HorizontalGridLinesWidth"

RelativeSource="{RelativeSource TemplatedParent}">

<Binding.Converter>

<telerik:GridLineWidthToThicknessConverter />

</Binding.Converter>

</Binding>

</Border.BorderThickness>

</Border>

<Border BorderBrush="#FF848484"

BorderThickness="0,1"

Background="#FFBBBBBB"

Grid.ColumnSpan="2"

Grid.Column="2"

Padding="6"

Grid.Row="2"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True">

<Border.Visibility>

<Binding Path="IsExpanded"

RelativeSource="{RelativeSource TemplatedParent}">

<Binding.Converter>

<telerik:BooleanToVisibilityConverter />

</Binding.Converter>

</Binding>

</Border.Visibility>

<ContentPresenter x:Name="PART_HierarchyChildPresenter"

ContentTemplate="{TemplateBinding ContentTemplate}"

Content="{TemplateBinding Content}"

ContentStringFormat="{TemplateBinding ContentStringFormat}"

telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True" />

</Border>

<telerik:DetailsPresenter x:Name="PART_DetailsPresenter"

Grid.ColumnSpan="2"

Grid.Column="2"

DetailsProvider="{TemplateBinding DetailsProvider}"

IsTabStop="False"

Grid.Row="1">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme />

</telerik:StyleManager.Theme>

</telerik:DetailsPresenter>

<telerik:IndentPresenter x:Name="PART_IndentPresenter"

Grid.Column="1"

IsTabStop="False"

IndentLevel="{TemplateBinding IndentLevel}"

Grid.RowSpan="4"

telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme />

</telerik:StyleManager.Theme>

</telerik:IndentPresenter>

<Border x:Name="PART_IndicatorPresenter"

BorderBrush="#FF848484"

BorderThickness="0,0,1,1"

Grid.Column="0"

Grid.RowSpan="3"

telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"

Visibility="{TemplateBinding RowIndicatorVisibility}"

VerticalAlignment="Stretch"

Width="25">

<Border x:Name="NavigatorIndicatorBackground"

BorderBrush="White"

BorderThickness="1"

Background="#FFE4E4E4">

<Grid>

<Grid x:Name="NavigatorIndicator"

HorizontalAlignment="Center"

Height="11"

Visibility="Collapsed"

VerticalAlignment="Center"

Width="11">

<Path Data=

"F1M32.0234,6.66669L24.2923,0.0248413 28.3697,0.0248413 32,3.14362 36.1492,6.70819 32,10.2728 28.4664,13.3085 24.2923,13.3085 32.0234,6.66669z"

Fill="#FF848484"

HorizontalAlignment="Center"

Height="8"

Margin="0"

Stretch="Fill"

VerticalAlignment="Center"

Width="8" />

</Grid>

<Grid x:Name="EditIndicator"

HorizontalAlignment="Center"

Height="10"

Visibility="Collapsed"

VerticalAlignment="Center"

Width="16">

<Path Data=

"M14,9L15,9 15,10 14,10z M1,9L2,9 2,10 1,10z M15,8L16,8 16,9 15,9z M0,8L1,8 1,9 0,9z M15,1L16,1 16,2 15,2z M0,1L1,1 1,2 0,2z M14,0L15,0 15,1 14,1z M1,0L2,0 2,1 1,1z"

Fill="#7F848484"

Stretch="Fill" />

<Path Data=

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Fill="#FFCBCBCB"

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<Path Data=

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Fill="#FF848484"

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<Path Data=

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Fill="White"

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</Grid>

<Grid x:Name="ErrorIndicator"

HorizontalAlignment="Center"

Height="16"

Visibility="Collapsed"

VerticalAlignment="Center"

Width="16">

<Path Data=

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StartPoint="0.5,0">

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Offset="0" />

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Offset="1" />

</LinearGradientBrush>

</Path.Fill>

</Path>

<Path Data=

"M1.4901161E-07,8L1.0000001,8 2.0000002,8 2.0000002,9 2.0000002,10 1.0000003,10 1.0000003,9 1.0000001,10 1.4901161E-07,10 1.4901161E-07,9z M1.4901161E-07,0L1.0000001,0 2.0000002,0 2.0000002,1 2.0000002,2 2.0000002,3 2.0000002,4.0000001 2.0000002,5 2.0000002,5.9999999 2.0000002,7 1.0000001,7 1.4901161E-07,7 1.4901161E-07,5.9999999 1.4901161E-07,5 1.4901161E-07,4.0000001 1.4901161E-07,3 1.4901161E-07,2 0,1z"

Fill="White"

Margin="7,3"

Stretch="Fill" />

<Path Data=

"M4,15L5,15 6,15 7,15 8,15 9,15 10,15 11,15 12,15 12,16 11,16 10,16 9,16 8,16 7,16 6,16 5,16 4,16z M12,14L13,14 13,15 12,15z M3,14L4,14 4,15 3,15z M13,13L14,13 14,14 13,14z M2,13L3,13 3,14 2,14z M14,12L15,12 15,13 14,13z M1,12L2,12 2,13 1,13z M7,11L7,12 7,13 8,13 9,13 9,12 9,11 8,11z M15,4L16,4 16,5 16,6 16,7 16,8 16,9 16,10 16,11 16,12 15,12 15,11 15,10 15,9 15,8 15,7 15,6 15,5z M0,4L1,4 1,5 1,6 1,7 1,8 1,9 1,10 1,11 1,12 0,12 0,11 0,10 0,9 0,8 0,7 0,6 0,5z M14,3L15,3 15,4 14,4z M7,3L7,4 7,5 7,6 7,7 7,8 7,9 7,10 8,10 9,10 9,9 9,8 9,7 9,6 9,5 9,4 9,3 8,3z M1,3L2,3 2,4 1,4z M13,2L14,2 14,3 13,3z M4,2L5,2 6,2 7,2 8,2 9,2 10,2 11,2 12,2 12,3 13,3 13,4 14,4 14,5 14,6 14,7 14,8 14,9 14,10 14,11 14,12 13,12 13,13 12,13 12,14 11,14 10,14 9,14 8,14 7,14 6,14 5,14 4,14 4,13 3,13 3,12 2,12 2,11 2,10 2,9 2,8 2,7 2,6 2,5 2,4 3,4 3,3 4,3z M2,2L3,2 3,3 2,3z M12,1L13,1 13,2 12,2z M3,1L4,1 4,2 3,2z M4,0L5,0 6,0 7,0 8,0 9,0 10,0 11,0 12,0 12,1 11,1 10,1 9,1 8,1 7,1 6,1 5,1 4,1z"

Stretch="Fill">

<Path.Fill>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="Red"

Offset="0" />

<GradientStop Color="#FF990000"

Offset="1" />

</LinearGradientBrush>

</Path.Fill>

</Path>

</Grid>

</Border>

</telerik:SelectiveScrollingGrid>

</Border>

<ControlTemplate.Triggers>

<MultiTrigger>

<MultiTrigger.Conditions>

<Condition Property="IsSelected"

Value="True" />

<Condition Property="DisplayVisualCues"

Value="True" />

</MultiTrigger.Conditions>

<Setter Property="Visibility"

TargetName="Background_Selected"

Value="Visible" />

<Setter Property="Background"

TargetName="NavigatorIndicatorBackground">

<Setter.Value>

<LinearGradientBrush EndPoint="0.5,1"

StartPoint="0.5,0">

<GradientStop Color="White"

Offset="0" />

<GradientStop Color="#FFE4E4E4"

Offset="1" />

</LinearGradientBrush>

</Setter.Value>

</Setter>

</MultiTrigger>

<MultiTrigger>

<MultiTrigger.Conditions>

<Condition Property="DisplayVisualCues"

Value="True" />

<Condition Property="IsMouseOver"

Value="True" />

</MultiTrigger.Conditions>

<Setter Property="Visibility"

TargetName="Background_Over"

Value="Visible" />

</MultiTrigger>

<Trigger Property="IsValid"

Value="False">

<Setter Property="Visibility"

TargetName="ErrorIndicator"

Value="Visible" />

<Setter Property="Visibility"

TargetName="EditIndicator"

Value="Collapsed" />

<Setter Property="Visibility"

TargetName="NavigatorIndicator"

Value="Collapsed" />

</Trigger>

<MultiTrigger>

<MultiTrigger.Conditions>

<Condition Property="IsValid"

Value="False" />

<Condition Property="DisplayVisualCues"

Value="True" />

</MultiTrigger.Conditions>

<Setter Property="Visibility"

TargetName="Background_Invalid"

Value="Visible" />

</MultiTrigger>

<Trigger Property="IsCurrent"

Value="True">

<Setter Property="Visibility"

TargetName="NavigatorIndicator"

Value="Visible" />

</Trigger>

<Trigger Property="IsInEditMode"

Value="True">

<Setter Property="Visibility"

TargetName="EditIndicator"

Value="Visible" />

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

<Setter Property="Background"

Value="White" />

<Setter Property="BorderBrush"

Value="#FFCBCBCB" />

<Setter Property="BorderThickness"

Value="0" />

<Setter Property="FontWeight"

Value="Normal" />

<Setter Property="VerticalContentAlignment"

Value="Stretch" />

<Setter Property="HorizontalContentAlignment"

Value="Stretch" />

<Setter Property="Padding"

Value="0" />

<Setter Property="SnapsToDevicePixels"

Value="True" />

</Style>

</Window.Resources>

<Grid>

<Controls:RadGridView ShowGroupPanel="False"

ItemsSource="{Binding Points}"

SelectionUnit="Cell"

SelectionMode="Single"

RowHeight="25"

IsSynchronizedWithCurrentItem="False" />

</Grid>

</Window>

GridView

answered on 24 Mar 2011

1 answer

208 views

Dynamically Create Fields

I love the new DataForm! What I would like to be able to do is do what I do in the DataGrid, which is I create all the fields at runtime and the headers, then I bind the data. I see in the examples, it shows to create a DataTemplate. I guess I could create a DataTemplate at runtime and bind. But is there another way? Basically, when I send an entity to the DataForm (or DataGrid), I read the Column information from a SQL Table as to what the label is, what data type, etc.

DataForm

answered on 24 Mar 2011

1 answer

144 views

DropDown of an editable RadComboBox stays open if scrolled with mouse wheel

Hello everyone,

if you have an RadGridView with an editable RadComboBox cell, open the cell's drop down and scroll with mouse wheel it stays open (if you scroll with the scrollbar it closes).

Is there any (easy) way to enforce the same behavior when scrolling with mouse wheel as with the scroll bar?

Maybe searching the RadGridView's ScrollViewer, hooking up to ScrollChanged and then closing all editable RadComboBox drop downs, but perhaps there's another way (with smaller amount of code) available...

Thanks!,

Version: RadControls for WPF Q1 2011

Christian

GridView

answered on 24 Mar 2011

1 answer

216 views

Remove hyperlink

First of all good job on the RadRichTextBox!

I need to remove a hyperlink that is handed to me as a Span
I tried to removing it by using the RemoveHyperlink method but I just cant get the caret to move to the span's location...

how can I remove the link?

internal void RemoveEntity(Span span)

{

//TODO:set caret to span's positioning

ui_txtCtrl.RemoveHyperlink();

}

Thanks

RichTextBox

answered on 24 Mar 2011

3 answers

186 views

Positive Currency Values In WPF Telerik RadMaskTextBox Of Currency Mask

Hello,

I am using a WPF Telerik RadMaskTextBox of Currency Mask in my application, but the problem is that I am able to enter negative currencies in this radmasktextbox. Is there a way, such that we can restrict the user to enter only positive values? If so, how?

Thanx.

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 24 Mar 2011

0 answers

101 views

GridView keyboard navigation?

Hello telerik Team,
I am using telerik wpf 2010_2_0723_DEV.
My UI contains some TextBox also have one RadGridView.
My Clarification is how to set keyboard navigation.If i have 5 TextBox then one Grid.
I set Tabindex into TextBox 1 to 5 Respectively.Then Grid TabIndex Is set to 6.
But run time if i check its not working correctly.

When radgrid Get Focus after i am using UP,Down key its not going to row.
Give me some ideas.

GridView

asked on 24 Mar 2011

1 answer

138 views

Sparkline downloadable c# example?

Is there a simple WPF sample project that can be downloaded that shows how to do sparklines in WPF?
It would be even better if the example made up its own data so there were no database dependencies.

I have seen the examples here : http://demos.telerik.com/silverlight/#Sparklines/Gallery

But these examples use "references" proprietary to Telerik like : Telerik.Windows.Examples.Sparklines.Gallery

A simple one or two column example of something like a single RadLinearSparkline would be great.

Thanks,

Daryl

Sparkline

answered on 23 Mar 2011

1 answer

90 views

VisibleRange.Start/End and VisibleRangeStart/End are different from within the ScheduleView_VisibleRangeChanged

Hi,

I was assuming that "VisibleRange.Start" and "VisibleRangeStart" would return the same value. But sometimes inside the VisibleRangeChanged event, they show different values.

VisibleRange.Start/End has the new visible range after the event and VisibleRangeStart/End has the last visible range before the event. Is this right?

Thanks,
Manoj

ScheduleView

answered on 23 Mar 2011

3 answers

150 views

The ClockStyle property isn't documented

In previous versions, there used to be a ClockPanel property to customize the drop-down clock panel. In the newest version, this is marked as deprecated. But there is no or little information on how to use the new ClockStyle property.

I'm looking to change the number of columns in the drop-down ClockPanel dynamically.

Old code:

<telerik:RadTimePicker x:Name="stopTime" >

<telerik:RadTimePicker.ClockPanel>

<ItemsPanelTemplate>

<panels:RadUniformGrid x:Name="stopTimePanel" Columns="6" />

</ItemsPanelTemplate>

</telerik:RadTimePicker.ClockPanel>

</telerik:RadTimePicker>

It is my understanding the the new code would look something like this:

<telerik:RadTimePicker x:Name="stopTime">

<telerik:RadTimePicker.ClockStyle>

<Style TargetType="telerik:RadClock">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate>

<panels:RadUniformGrid x:Name="stopTimePanel" Columns="2" />

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:RadTimePicker.ClockStyle>

</telerik:RadTimePicker>

But this example doesn't work. The dropdown list simply refuses to show. Can you provide an example of a working ClockStyle that lets you set the displayed number of columns?

TimePicker

answered on 23 Mar 2011

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