动态设置MinWidth [英] Dynamic setting MinWidth

问题描述

我有一个容器，里面有一个Grid.我想以编程方式将网格的最小宽度(grid.MinWidth)绑定到容器的宽度.

Hi,
i have a container that inside it there is a Grid.i want to bind the minimum width(grid.MinWidth) of the grid to the containers width programmatically. how can i do that?

推荐答案

您可以绑定到容器的实际宽度:

You can bind to the actual width of the container:

<Grid Name="myContainer" Width="200">
    <Grid MinWidth="{Binding ElementName=myContainer, Path=ActualWidth}"></Grid>
</Grid>

这是您从后面的代码中执行的方法.首先，您的XAML可能是这样的:

Here is how you do it from the code behind. First, here is what your XAML might be:

<Grid Name="myContainer">
    <Grid Name="myGrid" />
</Grid>

您的构造函数可能如下所示:

Your constructor might look like this:

public MainWindow()
{
    // Boilerplate.
    InitializeComponent();

    // Programmatic binding.
    Binding minWidthBinding = new Binding();
    minWidthBinding.Path = new PropertyPath(Grid.ActualWidthProperty);
    minWidthBinding.ElementName = "myContainer";
    BindingOperations.SetBinding(myGrid, Grid.WidthProperty, minWidthBinding);
}

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