Questions on UI for WPF Forum

1 answer

498 views

[Solved] RadDropDownButton Control Template

Hi.

I'm trying to customize the RadDropDownButton and in order to do so i have to rewrite some triggers but in order to do so I must rewrite the complete control template!!!!

I've followed the tutorials to extract the template using Blend or Visual Studio but it seems somehow incomplete:

<Style x:Key="FocusVisual">

<Setter Property="Control.Template">

<Setter.Value>

<ControlTemplate>

<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

<SolidColorBrush x:Key="Button.Static.Background" Color="#FFDDDDDD"/>

<SolidColorBrush x:Key="Button.Static.Border" Color="#FF707070"/>

<SolidColorBrush x:Key="Button.MouseOver.Background" Color="#FFBEE6FD"/>

<SolidColorBrush x:Key="Button.MouseOver.Border" Color="#FF3C7FB1"/>

<SolidColorBrush x:Key="Button.Pressed.Background" Color="#FFC4E5F6"/>

<SolidColorBrush x:Key="Button.Pressed.Border" Color="#FF2C628B"/>

<SolidColorBrush x:Key="Button.Disabled.Background" Color="#FFF4F4F4"/>

<SolidColorBrush x:Key="Button.Disabled.Border" Color="#FFADB2B5"/>

<SolidColorBrush x:Key="Button.Disabled.Foreground" Color="#FF838383"/>

<Style x:Key="RadDropDownButtonStyle1" TargetType="{x:Type Button}">

<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>

<Setter Property="Background" Value="{StaticResource Button.Static.Background}"/>

<Setter Property="BorderBrush" Value="{StaticResource Button.Static.Border}"/>

<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>

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

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

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

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

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="{x:Type Button}">

<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">

<ContentPresenter x:Name="contentPresenter" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>

</Border>

<ControlTemplate.Triggers>

<Trigger Property="IsDefaulted" Value="true">

<Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>

</Trigger>

<Trigger Property="IsMouseOver" Value="true">

<Setter Property="Background" TargetName="border" Value="{StaticResource Button.MouseOver.Background}"/>

<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>

</Trigger>

<Trigger Property="IsPressed" Value="true">

<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>

<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>

</Trigger>

<Trigger Property="IsEnabled" Value="false">

<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>

<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>

<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{StaticResource Button.Disabled.Foreground}"/>

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

How can i get a complete copy of the RadDropDownButton styles and templates?

Buttons

answered on 18 Feb 2019

2 answers

912 views

IsEnabled not working for ComboBox in PropertyGrid

The example below has a RadComboBox inside a RadPropertyGrid, with a Checkbox controlling the IsEnabled property of the RadComboBox. However, setting IsEnabled=false doesn't do anything. The same example works fine if I use a regular Grid instead of a RadPropertyGrid though.

ComboBox

answered on 14 Feb 2019

0 answers

97 views

Add new column error.

Hello team,

When I added a new column , the load fails. The error message in the output window is 'System.NullReferenceException'.

Thanks,

Peter

PersistenceFramework

asked on 14 Feb 2019

8 answers

1.0K+ views

RadGridView DataLoadMode Async alternative

Hello,

I'm using your RadGridView with the DataLoadMode on Async. What I've noticed is that the DataLoadMode cause the filters etc to be really unstable. However, the DataLoadMode on async makes the application really good, as it doesn't hang up the UI thread. But this won't work as long as it

Right now I'm using the your RadGridView and search bar from the Outlook Template (found here: https://docs.telerik.com/devtools/winforms/visual-studio-integration/visual-studio-templates) . I'm working with large data sets, so upon search and loading of data, it freezes the UI Thread.

I'm wondering how can I make the filtering and search etc to have the same async behavior as the dataloadmode async?

I also noticed that after using the search bar, the busyindicator for like data loading when I click on a button to show data e.g. etc stops working.

GridView

answered on 14 Feb 2019

1 answer

185 views

Crash an application after entering an emoticon in RadWatermarkTextBox or in RadComboBox.

Good day.

When you try to enter a emoji using the Windows touch keyboard in the RadWatermarkTextBox or RadComboBox, the application crashes.

System.ArgumentException: 'The surrogate pair is invalid. Missing a low surrogate character.'

Please help solve this problem.

Thank you

General Discussions

answered on 13 Feb 2019

1 answer

143 views

Unable to select full word

Hi,

when the pdfviewer is in textselection mode I am not able to select a full word when it ends with a punctuation mark like comma, dot or similar. The last character of the word will not be marked.

Any hints?

Thanks

Arndt

PDFViewer

answered on 13 Feb 2019

2 answers

128 views

New to Telerik controls

Ok, I'm new to using Telerik controls. I'm making some changes to an existing WPF app that uses the RadScheduleView control. I can't see to find detailed class reference information for this class. I'm kinda used to MSDN where I can look up a class and find a list of all the properties, methods, constructors, events, etc. All I managed to find are some tutorials, demos, examples and other docs that appear to be geared more towards marketing than being useful to a developer (https://docs.telerik.com/devtools/wpf/controls/radscheduleview/overview). I must be missing the obvious link but I just can't find a full class reference. Can anyone point me in the right direction please? Thanks.

General Discussions

answered on 13 Feb 2019

5 answers

1.0K+ views

[Solved] CTRL + MouseScroll for Zoom, MouseScroll for Scrolling

Hi,

I want to scroll through the Diagram using MouseScroll and do the zoom operation by holding CTRL key and use mouse scroll up/down. By default MouseScroll does the zoom operations. I want to perform zooming by holding a CTRL modifier and MouseScroll. Is this possible?

Regards,

Diagram

answered on 13 Feb 2019

2 answers

511 views

Insert New Row - Nothing Happens

I have a GridView in a WPF page. I've got the "Click here to add new item" row to appear in the grid, but when I click anywhere in the row, nothing happens. I cannot get the new row to appear. I've got "ShowInsertRow" and "CanUserInsertRow" both set to True. Am I missing something? Is there something else I have to do to make the new line appear?

Here's my XAML for the control, Thanks for your help.:

<telerik:RadGridView Name="rgvParameters" Grid.Column="1" HorizontalAlignment="Left" Margin="134,476,0,0" VerticalAlignment="Top" Height="171" Width="496" ItemsSource="{Binding}" IsFilteringAllowed="False" ShowGroupPanel="False" AutoGenerateColumns="False" SelectionUnit="Cell" ShowInsertRow="True" ActionOnLostFocus="None" CanUserInsertRows="True" CanUserReorderColumns="False" CanUserSortGroups="False" CanUserDeleteRows="False" SelectionChanged="rgvParameters_SelectionChanged">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Name="rgcParameterID" DataMemberBinding="{Binding [ParameterID]}" Width="0" MaxWidth="0" MinWidth="0" />

<telerik:GridViewDataColumn Name="rgcApplicationID" DataMemberBinding="{Binding [ApplicationID]}" Width="0" MaxWidth="0" MinWidth="0" />
<telerik:GridViewDataColumn Name="rgcParameterName" DataMemberBinding="{Binding [ParameterName]}"
Header="Key" />
<telerik:GridViewDataColumn Name="rgcParameterValue" DataMemberBinding="{Binding [ParameterValue]}"
Header="Value" />
</telerik:RadGridView.Columns>
</telerik:RadGridView>

Edit: One thing I just noticed. If I bring up the page and immediately click the new row, the new row line does appear. If I populate the grid with current data from the database with this line of code, the insert new row command no longer works:

rgvParameters.ItemsSource = businessRules.GetParameters(dsApp.Tables[0].Rows[0]["ApplicationID"].ToString());

Why does setting the ItemSource value invalidate the user's abiity to add a new record to the grid?

GridView