How can I bind the `Text` property of the `TextBox` to a `FoundationHeight` clr-property defined in code-behind.

**xaml**

```
<TextBox Text="{Binding FoundationHeight}"/>

```

**c#**

```
public double FoundationHeight { get; set; }
public AssignColumnPropertiesWindow()
{
    InitializeComponent();
    FoundationHeight = 60;
}

```