WPF drop shadow

Solution 1:

Two choices:

Option 1: Add a border element with the effect on it as a sibling of the border / rectangle element tree you have. Something like this:

<Grid>
    <Border Margin="68,67,60,67"
            BorderBrush="Black"
            BorderThickness="1"
            CornerRadius="10">
        <Border.Effect>
            <DropShadowEffect />
        </Border.Effect>
    </Border>
    <Border Margin="68,67,60,67"
            BorderBrush="Black"
            BorderThickness="1"
            CornerRadius="10">

        <Rectangle Fill="White"
                   Stroke="Black"
                   Margin="37,89,118,98">
        </Rectangle>
    </Border>

</Grid>

Option 2: Put the rectangle as a sibling of the border element like this:

   <Grid>
    <Border Margin="68,67,60,67"
            BorderBrush="Black"
            BorderThickness="1"
            CornerRadius="10">
        <Border.Effect>
            <DropShadowEffect />
        </Border.Effect>
    </Border>
    <Rectangle Fill="White"
               Stroke="Black"
               Margin="37,89,118,98">
    </Rectangle>

</Grid>

NOTE: You will have to tweak the layout on the second solution to make the rectangle line up where you want it