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AnswerRe: How to modify DataTemplate programmatically? Pin
Abhinav S16-May-11 3:10
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Questionobjects added to an IDictionary must have a Key attribute [modified] Pin
Lutosław15-May-11 23:20
Lutosław15-May-11 23:20 
Hello again!

It is another time I encounter this error: "objects added to an IDictionary must have a Key attribute or some other type of key associated with them.". I searched google to find out what is going on, but in every case the reason was that somebdy didn't set either Key or TargetType.

I my case, I set the TargetType, but it doesn't work. In my previous post the problem was that I was using a UserControl. Now I try to set a template of a ToggleButton which is not a UserControl. WTH is going on? Confused | :confused:
XML
<ControlTemplate TargetType="ToggleButton">
    <ControlTemplate.Triggers>
        <DataTrigger Binding="{TemplateBinding IsChecked}" Value="True">
            <Setter Property="Opacity" Value="1" />
        </DataTrigger>
        <DataTrigger Binding="{TemplateBinding IsMouseOver}" Value="True">
            <Setter Property="Opacity" Value="0.7" />
        </DataTrigger>
    </ControlTemplate.Triggers>
</ControlTemplate>

(...)

<ToggleButton Grid.Row="3" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" Background="Transparent" BorderThickness="0" BorderBrush="Transparent" Opacity="0.3">
    <Image Source="{StaticResource CheckedImage}" Height="16" />
</ToggleButton>

The error started to appear since I changed something. I had tried to revert my recent changes but I couln't work out what is wrong D'Oh! | :doh:
EDIT: I've tried to set x:Key and reference Template={StRes key} and got exception:
{"'Set property 'System.Windows.DataTrigger.Binding' threw an exception.' Line number '59' and line position '18'."}

Inner:
{"Unable to cast object of type 'System.Windows.TemplateBindingExpression' to type 'System.Windows.Data.BindingBase'."}
Inner:null
Edit2: IsChecked IS a dep property
Any ideas?
Greetings - Jacek
modified on Monday, May 16, 2011 5:46 AM

NewsRe: objects added to an IDictionary must have a Key attribute Pin
Lutosław16-May-11 0:05
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AnswerRe: objects added to an IDictionary must have a Key attribute Pin
Venkatesh Mookkan16-May-11 0:41
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AnswerRe: objects added to an IDictionary must have a Key attribute Pin
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AnswerRe: objects added to an IDictionary must have a Key attribute Pin
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QuestionPayment Gateway in Silverlight [modified] Pin
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QuestionControl Template not applied Pin
Lutosław14-May-11 10:11
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