Trying to make a DataTemplate style, where it should change the colour of a couple of gradient stops based on the value of a boolean 'IsReported'. This is a MVVM Project.
However, when I add items to the ObservableCollection (in the view model) which the list box is binded to, it comes up with this error:
{"'Provide value on 'System.Windows.Markup.StaticResourceHolder' threw an exception.' Line number '153' and line position '38'."}
Cannot find resource named 'timeSlotColorValue'. Resource names are case sensitive.
Here is the Style / Data Template:
<LinearGradientBrush x:Key="bordBackground" EndPoint="1,1" StartPoint="0,0">
<GradientStop x:Name="timeSlotColorValue" Color="Lime" Offset="0" />
<GradientStop Color="Transparent" Offset="0.2"/>
<GradientStop Color="Transparent" Offset="0.8"/>
<GradientStop x:Name="timeSlotColorValue2" Color="Lime" Offset="1"/>
</LinearGradientBrush>
<Style TargetType="ListBox" x:Key="timeSlotTemplate">
<Setter Property="ItemTemplate">
<Setter.Value>
<DataTemplate DataType="model:DVRTimeSlot">
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding IsReported}" Value="true">
<Setter Property="GradientStop.Color" TargetName="{StaticResource timeSlotColorValue}" Value="Red" />
<Setter Property="GradientStop.Color" TargetName="{StaticResource timeSlotColorValue2}" Value="Red" />
</DataTrigger>
</DataTemplate.Triggers>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding TimeString}" Padding="2" FontSize="13" FontWeight="Black" >
<TextBlock.Background>
<LinearGradientBrush EndPoint="0.5,1" MappingMode="RelativeToBoundingBox" StartPoint="0,1">
<GradientStop Color="LightGray" Offset="0"/>
<GradientStop Color="Azure" Offset="1"/>
</LinearGradientBrush>
</TextBlock.Background>
</TextBlock>
<Border Grid.Column="1" Background="{StaticResource bordBackground}">
<Border.Resources>
<Style TargetType="TextBlock">
<Setter Property="TextAlignment" Value="Right" />
<Setter Property="Padding" Value="5,0"/>
<Setter Property="FontSize" Value="13"/>
<Setter Property="FontWeight" Value="SemiBold" />
</Style>
<Style TargetType="Border">
<Setter Property="Padding" Value="3" />
<Setter Property="Margin" Value="-3,0,-3,0" />
<Setter Property="MinWidth" Value="240"/>
</Style>
</Border.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Reason}" TextAlignment="Center"/>
</Grid>
</Border>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
Here is the Model I'm basing my Data off:
public class DVRTimeSlot
{
public DVRTimeSlot()
{
}
public bool IsReported { get; set; }
public string Reason { get; set; }
public CallReportCategory Category { get; set; }
public DateTime TimeValue { get; set; }
public string TimeString
{
get { return TimeValue.Hour + ":" + TimeValue.Minute; }
}
}
Can anyone shed some light on this, have I gone the wrong way about it? I've used this article for a guide: Change color of textbox with trigger, but doesn't seem to work in this scenario