hiding a button on click

[neo_xaml]

I am trying to hide the button once it has been clicked. Each button has its own UID within a datagrid. Is there a way to set or pass a parameter that will hide that particular button?

[gstercken]

You don't need to pass your own parameter for that - in the Click event handler you assign to the buttons, you can evaluate either the 'sender' parameter, or the event arguments' 'Source' property for that:

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        Button source = e.Source as Button;
        if (source != null)
        {
            source.Visibility = Visibility.Hidden;
        }
    }

[Arjay]

Another approach is the use a custom style for a ToggleButton.

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
	<Window.Resources>
		<Style x:Key="HideButtonStyle" TargetType="{x:Type ToggleButton}">
			<Setter Property="Foreground" Value="#FFFFFF" />
			<Setter Property="Width" Value="60"/>
			<Setter Property="Height" Value="20"/>
			<Setter Property="FontSize" Value="10"/>
			<Setter Property="Template">
				<Setter.Value>
					<ControlTemplate TargetType="{x:Type ToggleButton}">
						<Grid>
							<Rectangle x:Name="Rectangle" Stroke="#FF051F42" StrokeMiterLimit="1.000000" StrokeThickness="0.500000" RadiusX="5" RadiusY="5">
								<Rectangle.Fill>
									<LinearGradientBrush EndPoint="0.501,0.039" StartPoint="0.501,0.971">
										<GradientStop Color="#FF1F317D" Offset="0.101"/>
										<GradientStop Color="#FF1F317D" Offset="0.49"/>
										<GradientStop Color="#FF6C8EBD" Offset="0.51"/>
										<GradientStop Color="#FF283D8C" Offset="0"/>
										<GradientStop Color="#FF7094C7" Offset="0.986"/>
									</LinearGradientBrush>
								</Rectangle.Fill>
							</Rectangle>
							<ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" RecognizesAccessKey="True"/>
						</Grid>
						<ControlTemplate.Triggers>
							<Trigger Property="IsKeyboardFocused" Value="true"/>
							<Trigger Property="IsMouseOver" Value="true">
								<Setter Property="Fill" TargetName="Rectangle">
									<Setter.Value>
										<LinearGradientBrush EndPoint="0.501,0.039" StartPoint="0.501,0.971">
											<GradientStop Color="#FF2C558C" Offset="0.101"/>
											<GradientStop Color="#FF1F317D" Offset="0.49"/>
											<GradientStop Color="#FF9DB5D7" Offset="0.51"/>
											<GradientStop Color="#FF244AAF" Offset="0"/>
											<GradientStop Color="#FF87A4D9" Offset="0.986"/>
										</LinearGradientBrush>
									</Setter.Value>
								</Setter>
							</Trigger>
							<Trigger Property="IsChecked" Value="true" >
								<Setter Property="Visibility" Value="Hidden" />							
							</Trigger>
						</ControlTemplate.Triggers>
					</ControlTemplate>
				</Setter.Value>
			</Setter>
		</Style>
	</Window.Resources>
	<Grid>
		<ToggleButton Width="80" Height="18" Margin="10,0,0,0" Style="{DynamicResource HideButtonStyle}" >_Hide Me</ToggleButton>
	</Grid>
</Window>

The code that actually hides the button is the following trigger:

<Trigger Property="IsChecked" Value="true" >
	<Setter Property="Visibility" Value="Hidden" />
</Trigger>

[neo_xaml]

Yes, I ended implementing the following.

  <Style TargetType="{x:Type Button}" x:Key="CellTextStyle">
            <Setter Property="IsEnabled" Value="true" />
            <Setter Property="IsTabStop" Value="false" />
            <Style.Triggers>
                <Trigger Property="Tag" Value="Closed">
                    <Setter Property = "Visibility" Value="Hidden"/>
                </Trigger>
            </Style.Triggers>
        </Style>

[gstercken]

@Arjay: Cool! As it is good practice with WPF, a declarative / XAML-only approach is always to be considered better than any solution involving code-behind...

@neo_xaml: Please use code tags when posting code. I'm getting tired of editing posts for that...