I am doing a project where I need a timer with drop shadow. I managed to figure out a way to do the drop shadow with 2 labels, but my problem now is that I need to give both the same name to act in the exact same way in all situation WITHOUT having duplicated code. Is this possible?
<Grid>
<Label x:Name="time" MouseDoubleClick="time_MouseDoubleClick" HorizontalAlignment="Center" FontFamily="Old English Text MT" Margin="0,5,0,0" FontSize="22" Content="00:00:00" FontWeight="Bold" Foreground="Black">
<Label.RenderTransform>
<TranslateTransform X="1.5" Y="1"/>
</Label.RenderTransform>
</Label>
<Label x:Name="time2" MouseDoubleClick="time_MouseDoubleClick" HorizontalAlignment="Center" FontFamily="Old English Text MT" Margin="0,5,0,0" FontSize="22" Content="00:00:00" FontWeight="Bold" Foreground="White"/>
</Grid>
This is how the code looks to make the drop shadow. Is there a way around this? Or is there a way like in HTML where I can define a "class" name?
You don't need two labels. You need DropShadowEffect:
<Label Content="00:00:00">
<Label.Effect>
<DropShadowEffect/>
</Label.Effect>
</Label>
It seems that you in actual fact need a drop-shaddow effect, another implementation to have two controls update based on the same property might lie in binding.
In the initialize method of the codebehind file set the DataContext.
DataContext = this;
Change your xaml to bind to a common string property.
<Grid>
<Label x:Name="time" MouseDoubleClick="time_MouseDoubleClick" HorizontalAlignment="Center" FontFamily="Old English Text MT" Margin="0,5,0,0" FontSize="22" Content="{Binding Time}" FontWeight="Bold" Foreground="Black">
<Label.RenderTransform>
<TranslateTransform X="1.5" Y="1"/>
</Label.RenderTransform>
</Label>
<Label x:Name="time2" MouseDoubleClick="time_MouseDoubleClick" HorizontalAlignment="Center" FontFamily="Old English Text MT" Margin="0,5,0,0" FontSize="22" Content="{Binding Time}" FontWeight="Bold" Foreground="White"/>
</Grid>
(The content property now includes binding)
Ensure that you have a property in the codebehind to support the binding
public string Time {get;set;}
Your code-behind (.cs file) should implement the INotifyPropertyChanged interface, and your property should Raise the Event.
Then by changing the Time property, the XAML will automatically update.
Related
<TextBox Text="{Binding Path=ScalingFactor, Mode=TwoWay, StringFormat=F5}" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Left" Width="150" behaviors:TextBoxBehavior.SelectAllTextOnFocus="True" behaviors:InputBindingsManager.SourceProperty="TextBox.Text"/>
<Button Command="{Binding MultiplyCommand}" Grid.Row="0" Grid.Column="1"
HorizontalAlignment="Center"
Margin="{StaticResource MarginItemLeft}">
<Image Source="/Themes;component/BaseTheme/Images/Add.png" Stretch="None" />
</Button>
<Button Command="{Binding DivideCommand}" Grid.Row="0" Grid.Column="2"
HorizontalAlignment="Center"
Margin="{StaticResource MarginItemLeft}">
<Image Source="/Themes;component/BaseTheme/Images/Minus.png" Stretch="None" />
</Button>
I have a text box with two commands,
Since this really looks like DoubleUpDown from WPF extended tools kit I thought of replacing all of this code with it.
However I can't find any documentation of how to bind the commands?
Can you help me connecting multiplyCommand into the up key and DivideCommand into the down key?
The best option is to wrap the xaml you presented in a user /custom control (depending on the level of customization you need to allow) and then add dependency properties for the Min, Max and Value (to allow binding when used).On the Execute method of the up and down commands simply validate the expected value against the min and max.
Good Morning,
I need to make the label below to where the Tag property will be the same as the content.
Basically If the content is "this label's content" then the Tag property should be "this label's content" as well.
I have tried quite a few things however this is my most recent attempt:
<Label x:Name="label" HorizontalContentAlignment="Center" Background="{Binding Background, ElementName=ColorForBGG}" Tag="{Binding RelativeSource={RelativeSource Self}, Path=x.Content}"/>
you can do this directly using the Element-
<Label x:Name="label" Content="Label" HorizontalContentAlignment="Center" Background="{Binding Background, ElementName=ColorForBGG}" Margin="62,59,0,0" VerticalAlignment="Top" Tag="{Binding Content, ElementName=label}"/>
I've made an app that allowes me to control a Microsoft NXT 2.0 Mindstorms robot and I've recently added a slider that I want to use to set the current engine speed instead of having a fixed value, so I need help.
Here I have the XAML of the label and slider that I want to use:
<Slider x:Name="Speed" HorizontalAlignment="Left" Margin="40,58,0,0" VerticalAlignment="Top" Width="30" Orientation="Vertical" Height="187" Maximum="90" Minimum="-90" SmallChange="1" LargeChange="10" IsSnapToTickEnabled="True" TickFrequency="5" TickPlacement="BottomRight" AutoToolTipPlacement="BottomRight" MouseUp="Speed_MouseUp" BorderBrush="#00000000" Background="#00000000" Foreground="#FF858585">
<Label x:Name="Current_Speed" Content="Currently: " HorizontalAlignment="Right" Margin="0,0,478,257" Width="60" Height="29" VerticalAlignment="Bottom" Foreground="Black" />
I want Current_Speed to write Currently: {SliderValue} I want it to write the current value of the slider instantly as I move my slider up or down like you can do with the ToolTip option.
Any ideas?
(Bear in mind, I'm not very skilled, so detailed solutions would be much appreciated)
Thank you in advance :)
It's relatively easy. The "trick" is that you need to use two different Label objects, which you can aggregate together using a StackPanel container.
For the second Label object, just set the Label's Content attribute like this:
Content="{Binding ElementName=Speed, Path=Value}"
The whole thing will look something like this:
<Slider x:Name="Speed"
HorizontalAlignment="Left" VerticalAlignment="Top"
Margin="40,58,0,0"
Width="30" Height="187"
Orientation="Vertical"
Maximum="90" Minimum="-90"
SmallChange="1" LargeChange="10"
IsSnapToTickEnabled="True" TickFrequency="5" TickPlacement="BottomRight"
AutoToolTipPlacement="BottomRight"
MouseUp="Speed_MouseUp"
BorderBrush="#00000000" Background="#00000000" Foreground="#FF858585" />
<StackPanel Orientation="Horizontal" Margin="0,0,0,257" Height="29">
<Label x:Name="Current_Speed_Text"
Content="Currently: "
HorizontalAlignment="Right" VerticalAlignment="Bottom"
Foreground="Black" />
<Label x:Name="Current_Speed"
Content="{Binding ElementName=Speed, Path=Value}"
HorizontalAlignment="Right" VerticalAlignment="Bottom"
Foreground="Black" />
</StackPanel>
Note: I have rearranged the layout a bit to ensure the UI elements are properly visible, and have reformatted the XAML itself to aid in readability.
I will also suggest that you use some other mechanism for controlling layout than setting the Margin values. The Margin attribute is very good for ensuring adequate space between elements, but it's not very good at accommodating flexible layout of elements, as it usually requires hand-modifying the margin values as other element characteristics change (e.g. font size, number of characters in the text, etc.).
Likewise, you should use Width and Height sparingly. They have similar problems.
In other words, if you apply the above suggestion to your XAML and it doesn't seem to work, it's because the Label is currently being laid out in such a way that the extra "speed value" text can't be seen.
I am trying to implement something where I need to display list of people and a green icon if they are online. these people are grouped by some categories. I am using an expanderview toolkit control to display the list. So how do I set the icon image to be visible dynamically ? I have tried something like this which didnt work.
<DataTemplate x:Key="groupsItemTemplate">
<StackPanel Orientation="Horizontal" Margin="30,5,0,0"">
<Image Height="30" Width="30" Source="/Assets/Online.png" Margin="10,5,0,0" Visibility="{Binding IsFriendOnline}"></Image>
<TextBlock TextWrapping="NoWrap" FontFamily="Segoe WP Light" FontSize="24" Margin="8,0,0,0" VerticalAlignment="Center" HorizontalAlignment="left" Height="auto" Width="300" Text="{Binding FriendName}"></TextBlock>
</StackPanel>
</DataTemplate>
IsFriendOnline is an integer property.
Firstly, you need to use a converter in order to convert the value of your IsFriendOnline property to the Visibility enum that you require.
WPF has a "BooleanToVisibilityConverter" built in so if you have the ability to change the IsFriendOnline to a boolean value (which sounds like it makes a little more sense anyway) I would go down this route... if its imperative that the property is an integer then you will need to roll your own converter which isnt difficult.
The syntax would look something like this when you have a converter (my code below assumes IsFriendOnline is a boolean)...
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
<DataTemplate x:Key="groupsItemTemplate">
<StackPanel Orientation="Horizontal" Margin="30,5,0,0"">
<Image Height="30" Width="30" Source="/Assets/Online.png" Margin="10,5,0,0" Visibility="{Binding IsFriendOnline, Converter={StaticResource BooleanToVisibilityConverter}}"></Image>
<TextBlock TextWrapping="NoWrap" FontFamily="Segoe WP Light" FontSize="24" Margin="8,0,0,0" VerticalAlignment="Center" HorizontalAlignment="left" Height="auto" Width="300" Text="{Binding FriendName}"></TextBlock>
</StackPanel>
</DataTemplate>
Hope this helps...
I have a custom ItemTemplate for a ListBox and I need to "bind" a TextBlock to some special method / property.
My ListBox Source is an ObservableCollection<SearchResultItem>. SearchResultItem containing some properties.
The text need to change based on the value of another object. E.G if this object equals "foo" I need the text value to call the method GetProperty("foo") on the SearchResultItem to get the correct value.
Here is a sample of code:
<DataTemplate>
..
//Here is a Label bound to the Date Property of the SearchResultItem
<Label Margin="2,2,2,0" Grid.Row="0" Grid.Column="2" Content="{Binding Path=Date}" HorizontalAlignment="Right" HorizontalContentAlignment="Right" />
//Here is the textblock that needs to call the method with the parameter based on the value of the other object.
<TextBlock Margin="2,2,2,0" TextTrimming="CharacterEllipsis" Grid.Row="0" Grid.Column="1" Text="I need some help there" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black"/>
..
</DataTemplate>
Do you have any idea on how to do that or a better way to do it?
Edit:
-Let's assume SearchResultItem comes from an external library and only exposes the GetProperty method.
-Let's say the "foo" value comes from ConfigurationManager.AppSettings["propertyName"]; if it helps.
OK, because your properties never change, here's one solution. You can do this via another property on your SearchResultItem class:
public string MyTextBinding
{
get
{
return myDictionary.ContainsKey("foo") ? return myDictionary["foo"] : return "myDictionary doesn't contain foo";
}
}
Then just bind your textbox to this property:
<DataTemplate>
<Label Margin="2,2,2,0" Grid.Row="0" Grid.Column="2" Content="{Binding Path=Date}" HorizontalAlignment="Right" HorizontalContentAlignment="Right" />
<TextBlock Margin="2,2,2,0" TextTrimming="CharacterEllipsis" Grid.Row="0" Grid.Column="1" Text="{Binding Path=MyTextBinding, Mode=OneWay}" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black"/>
</DataTemplate>
Just use a IValueConverter that takes a SearchResultItem and return the expected text
<TextBlock Margin="2,2,2,0" TextTrimming="CharacterEllipsis"
Grid.Row="0" Grid.Column="1"
Text="{Binding Path=.,
Converter={StaticResource PropertyValueFromSearchResultItemConverter},
ConverterParameter=Foo}"
HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black"/>