Develop Reference

How can replace default checkbox style with png image in xaml wpf

How can replace default checkbox style with png image, for checked state and unchecked state.
Here is and what I try but is not complilated with xaml:
<CheckBox IsChecked="{Binding AirTemperatureGridChecked}">
<CheckBox.Background>
<Image Source="https://cdn4.iconfinder.com/data/icons/cc_mono_icon_set/blacks/48x48/checkbox_unchecked.png" Width="16" Height="16" />
</CheckBox.Background>
</CheckBox>
I try and this code but then image go in content is not replaced.
<CheckBox IsChecked="{Binding AirTemperatureGridChecked}">
<Image Source="https://cdn4.iconfinder.com/data/icons/cc_mono_icon_set/blacks/48x48/checkbox_unchecked.png" Width="16" Height="16" />
</CheckBox>
Is possible to replace default style?

In this particular case, you will need to fiddle with the Template of the CheckBox.
<CheckBox IsChecked="{Binding AirTemperatureGridChecked}">
<CheckBox.Template>
<ControlTemplate TargetType="{x:Type CheckBox}">
<Grid>
<Image x:Name="Foo" Width="16" Height="16" Source="https://cdn4.iconfinder.com/data/icons/cc_mono_icon_set/blacks/48x48/checkbox_unchecked.png" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter TargetName="Foo" Property="Opacity" Value="0.5" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</CheckBox.Template>
I've made this one from scratch to just give an example of how quick and easy it is to get your own templates up and running for the design of controls.
As you can see, it's made of a grid, with your image inside, and below that is a trigger that will make the checkbox lower its opacity when unchecked.
You can put just about anything in that grid to design your checkbox as you would any window, and give it functionality with triggers.
Additionally (as giving each and every checkbox this mass of code would be unreasonable) you can give the controltemplate a key:
<ControlTemplate x:Key="WhateverYouWantToCallMe" TargetType="{x:Type CheckBox}">
<!-- Content ect... -->
</ControlTemplate>
Put it inside a Resource Dictionary and call it as a StaticResource for the checkbox instead, like so:
<CheckBox Template="{StaticResource WhateverYouWantToCallMe}"/>

Change color of subelements by mouseover

I have the following Window bar with four buttons and one image (a littlebit like ribbon):
this is the code (XAML) and the code behind (in C#) is not interesting :
<Button Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Focusable="False"
Click="SaveClicked" Margin="10, 0">
<StackPanel Orientation="Horizontal" >
<Image x:Name="ImageSave" Height="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="20"
Source="images/titlebar/SaveIconWhite.png" Margin="0,0,0,5" />
<Label x:Name="LbSave" Content="Save" VerticalAlignment="Stretch" FontSize="14"
HorizontalAlignment="Left" Foreground="White" />
</StackPanel>
<Button.Template>
<ControlTemplate TargetType="Button">
<ContentPresenter Content="{TemplateBinding Content}"/>
</ControlTemplate>
</Button.Template>
</Button>
The code is nearly the same for the other buttons.
The buttons feel a littlebit unhandy because they have no mouseover effects.
I would like to implement a color change of the labels when the mouse is over the buttons. a change of the images for file load and save would be great too, but i think i am able to do it myself when i know how to implement the mouse over color change of the label.
under normal conditions i'd try to archieve a mouse over color change with these code:
<Button.Style>
<Style TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="DarkGoldenrod"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
But this does not work, because i already have the Button.Template and i am also a littlebit confused about the Button.Template at all (haven't understood it - only copied..). How is the Button.Template working and what is it usage?
Is anybody able to give me a hint in the right direction?

We have MouseEnter and MouseLeave Events.
Use MouseEnter to Change the Color When Mouse is inside control.
Use MouseLeave to Change back the Color When Mouse comes out of the control.

Never Used but Put Trigger inside ControlTemplate of button:
Something Like This:
<Button.Template>
<ControlTemplate TargetType="Button">
<ContentPresenter Content="{TemplateBinding Content}"/>
<ControlTemplate.Triggers>
<Trigger Property="Button.IsMouseOver" Value="True">
<Setter TargetName="buttonLabel" Property="Foreground" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>
</Button>
and How is the Button.Template working and what is it usage?
visit the link below
http://www.codeproject.com/Articles/84630/WPF-Customize-your-Application-with-Styles-and-Con
https://msdn.microsoft.com/en-us/library/cc295273.aspx
Hope it may help you.

WPF ComboBox EditTemplate - TextBox border is not going away

I am using a DEVExpress combobox and have enabled type ahead (Auto search functioanlity). In combo box I am showing two things. First item is an image and second item is a value(id).
Mine problem is that the value border is getting outside to combo box while showing at UI at run time. I tried setting margin but its of no use. My application is having option to select theme and for some of the theme its getting hazy.
Any idea how to get rid of this ?
see the first one is looking fine however the below one is bit hazy if i change the theme.
I am using below code for the same.
<dvEx:ComboBoxEdit.EditTemplate>
<ControlTemplate>
<StackPanel Orientation="Horizontal">
<Image Source="{Binding Path=(dxe:BaseEdit.OwnerEdit).SelectedItem.Image, RelativeSource={RelativeSource Self}}" Margin="8, 0, 4, 0"/>
<TextBox x:Name="PART_Editor" BorderBrush="Transparent"/>
</StackPanel>
</ControlTemplate>
</dvEx:ComboBoxEdit.EditTemplate>
<dvEx:ComboBoxEdit.ItemTemplate>
<DataTemplate DataType="{x:Type vm:DesignSelectViewModel}">
<StackPanel Orientation="Horizontal">
<Image Source="{Binding Image}" Margin="8, 0, 4, 0"/>
<TextBlock Text="{Binding Name}"/>
</StackPanel>
</DataTemplate>
</dvEx:ComboBoxEdit.ItemTemplate>

To accomplish your task I suggest you to override the TextBox.Template as follows to make it theme-independent and remove it's focused state (border and background):
<TextBox x:Name="PART_Editor">
<TextBox.Template>
<ControlTemplate TargetType="{x:Type TextBox}">
<Grid x:Name="Root" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
<ScrollViewer x:Name="PART_ContentHost" Margin="1" Padding="{TemplateBinding Padding}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsReadOnly" Value="True">
<Setter Property="Opacity" TargetName="PART_ContentHost" Value="0.75"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" TargetName="Root" Value="0.5"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</TextBox.Template>
</TextBox>
Related MSDN article: TextBox Styles and Templates

How can I set a border around a control during runtime in WPF?

I have an Image control on my WPF Form. How can I create a border around it during runtime?
Here's my XAML code:
<Image Margin="2.5"
Grid.Column="1" Grid.Row="0"
x:Name="Behemoth" Source="Images/Hero/Behemoth.gif" Stretch="Fill"
MouseEnter="HeroMouseEnter"
MouseLeave="HeroMouseLeave"
MouseDown="HeroMouseClick" />
Also, I want to know how to remove the border.
Maybe if I state my problem better there is an even better solution available.
I have many Images, and when a user says: "Hey, just show me the woman out of all the picture." I want a way to sort of highlight or draw the users attention to whatever images I need them to see. I was thinking about adding a border, but maybe that's too much work for something that can be solved easier.
Any help?

Although it's visually very different from a border, you could use an outter glow to signify the importance of the image. Then, you don't have to change the parent of the image.
Alternatively, you could use a custom Adorner to place a border around the image. Good info on Adorners can be found on msdn.

There's no straightforward way to do it, because the Border is a container, so you would have to remove the Image from its parent, put the Border instead, and put the Image back in the Border...
Another option would be to use templates :
<Window.Resources>
<ControlTemplate x:Key="imageWithBorder" TargetType="{x:Type Image}">
<Border BorderBrush="Red" BorderThickness="2">
<Image Source="{TemplateBinding Source}" />
</Border>
</ControlTemplate>
</Window.Resources>
...
<Image Name="image1" Source="foo.png"/>
When you want to put the border around the image, just assign the template to the image :
image1.Template = this.FindResource("imageWithBorder") as ControlTemplate;

For your stated needs, I suggest you use a ListBox with a custom ItemContainerStyle - one that always has a border but only makes it visible if the item is selected.
Here's the basic idea:
<ListBox ItemsSource="{Binding MyImageObjects}">
<ListBox.ItemContainerStyle>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border x:Name="border">
<ContentPresenter />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ListBoxItem.IsSelected" Value="True">
<Setter ElementName="border" Property="BorderBrush" Value="Blue" />
<Setter ElementName="border" Property="BorderThickness" Value="2" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>

WPF ItemsControl IsMouseOver not working as expected

I have the following code in the Window.Resources of a WPF window. What it is basically doing is creating an item that represents a grid with a label positioned on the left and a button on the right. When I mouse over the label or the button the row changes color as expected but I want it to also change color if the mouse is over any of the row.
How can this be achieved?
Any help is appreciated.
<Window.Resources>
<dtos:ProjectDto x:Key="data"/>
<Style x:Key="alternatingWithTriggers"
TargetType="{x:Type ContentPresenter}">
<Setter Property="Height" Value="25"></Setter>
</Style>
<Style x:Key="onmouseover" TargetType="{x:Type DockPanel}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Yellow">
</Setter>
</Trigger>
</Style.Triggers>
</Style>
<DataTemplate x:Key="ItemTemplate">
<Border x:Name="ItemBorder" HorizontalAlignment="Stretch" BorderThickness="0" Background="#BBB" ClipToBounds="True" >
<DockPanel ClipToBounds="True" HorizontalAlignment="Stretch" Style="{StaticResource onmouseover}">
<Label Content="{Binding Name}" HorizontalAlignment="Left" Height="80"></Label>
<Button Content="Delete" HorizontalAlignment="Right" Margin="0,0,10,0"/>
</DockPanel>
</Border>
...

Give the DockPanel Background="Transparent". That should allow it to capture mouse events.

I don't see anything obviously wrong in the snippet you've posted, and since I'm not in front of Studio, I can't try it out, but if I were you, I'd try adding a MouseEnter handler on the DockPanel (just throw the do-nothing handler in the code-behind for the view, since you'll remove it later).
Make sure that handler is getting hit when you enter, and with the debugger/immediate window, make sure the IsMouseOver property is as you expect it to be. That will at least direct your next debugging steps:
If IsMouseOver is true and your handler is hit, then my guess would be something about the trigger you've got set up isn't quite right.
If IsMouseOver is false or your handler isn't hit, then my guess would be something like IsHitTestVisible is set to false or something of that sort.
Just for fun, I'd also try moving the style declaration inline to the dockpanel, just to make sure, like so:
<DataTemplate x:Key="ItemTemplate">
<Border x:Name="ItemBorder" HorizontalAlignment="Stretch" BorderThickness="0" Background="#BBB" ClipToBounds="True" >
<DockPanel ClipToBounds="True" HorizontalAlignment="Stretch">
<DockPanel.Style>
<Style TargetType="{x:Type DockPanel}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Yellow"/>
</Trigger>
</Style.Triggers>
</Style>
</DockPanel.Style>
<Label Content="{Binding Name}" HorizontalAlignment="Left" Height="80"></Label>
<Button Content="Delete" HorizontalAlignment="Right" Margin="0,0,10,0"/>
</DockPanel>
</Border>