MultiBinding

<StackPanel>
	<Slider x:Name="sl1" Minimum="10" Maximum="100"/>
	<Slider x:Name="sl2" Minimum="10" Maximum="100"/>
	<Label x:Name="label13" Background="Yellow" Foreground="Black">
		<Label.Content>
			<TextBlock>
				<TextBlock.Text>
					<MultiBinding StringFormat="{}This is {0:N2} x {1:N2}">
						<Binding ElementName="sl1" Path="Value" />
						<Binding ElementName="sl2" Path="Value" />
					</MultiBinding>
				</TextBlock.Text>
			</TextBlock>
		</Label.Content>
	</Label>
</StackPanel>

在上面的例子中，移动滑块，Label的两个值对应发生变化
用占位符把两个滑块的值拼接在一起
通过:N2来保留两位小数

示例代码

https://github.com/zLulus/NotePractice/tree/dev3/WPF/WpfDemo/MultiBinding