SyleProblem: Can't Change BackGround Of Particular button?

Question

1. I have one ==> UserControl.

2. Inside that UserControl ==> One ItemsControl.

   Now ItemsControl generating But

Answer 1

You are overwritting the Button's Template in your Style, so the Background color never gets used

Default button template looks like this:

<Button Background="SomeColor">
    <Button.Content>
</Button>

And you are overwritting the template to say

<Border>
    <Button.Content>
</Border>

You need to bind the Border's Background color to the {TemplateBinding Background} so that it uses the Button's background color.

I would also suggest using a DataTrigger instead of code behind to change the background color of the button.

<Style TargetType="{x:Type Button}">
    <Setter Property="Background" Value="Transparent" />
    <Style.Triggers>
        <DataTrigger Binding="{Binding }" Value="3">
            <Setter Property="Background" Value="Red" />
        </DataTrigger>
    </Style.Triggers>
</Style>