在 C# 中删除和添加 GridRow 定义 [英] Remove and add GridRow definitions in C#

问题描述

我有一个在 XAML 中定义了 RowDefinitions 的网格，我需要在代码中进行捕捉视图时更改它，到目前为止，我只能通过以下方式弄清楚如何删除它们:

I have a Grid with RowDefinitions defined in XAML that I need to change when going to snapped view in code, and so far I can only figure out how to remove them via:

RowDefinitionCollection defs = mainGrid.RowDefinitions;
defs.RemoveAt(0);
defs.RemoveAt(0);

本质上，我需要删除对齐视图中的所有定义(以上代码有效)，但随后需要使第一行的高度为 140，而第二行一旦返回对齐状态，则为*".我将如何添加具有这些特征的定义?

Essentially I need to remove all definitions in snapped view (above code works) but then need to make the first row have a height of 140 and the second be "*" once it goes back into snapped. How would I add definitions with these characteristics?

推荐答案

尝试:

    RowDefinitionCollection defs = myGrid.RowDefinitions;
    defs.Add(new RowDefinition() { Height = new GridLength(140) });
    defs.Add(new RowDefinition() { Height = new GridLength(1, GridUnitType.Star) });

或者，您可以有两个网格，并且只将可见性修改为视觉状态的一部分，这样您就不会在代码中进行大量繁琐的 UI 操作.内置的 Visual Studio 模板将这种技术用于捕捉视图.

Alternatively, you could have two Grids and just modify the Visibility as part of the visual state, then you're not pulling a lot of tedious UI manipulation into your code. The built-in Visual Studio templates use this technique for snapped view.

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