C# Silverlight Datagrid：根据值更改单元格样式
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Silverlight Datagrid: Changing cell styles, based on values
提问by Mindaugas Mozūras
I have some data. I want to go through that data and change cells (for example - Background color), if that data meets a certain condition. Somehow, I've not been able to figure it out how to do this seemingly easy thing in Silverlight.
我有一些数据。如果该数据满足特定条件，我想查看该数据并更改单元格（例如 - 背景颜色）。不知何故，我一直无法弄清楚如何在 Silverlight 中做这件看似简单的事情。
采纳答案by Simon Steele
This is slightly old code (from before RTM), but does something like what you're looking for. It checks some data on an object in a row and then sets the colour of the row accordingly.
这是稍微旧的代码（来自 RTM 之前），但执行的操作类似于您正在寻找的内容。它检查一行中某个对象的一些数据，然后相应地设置该行的颜色。
XAML:
XAML：
<my:DataGrid x:Name="Grid" Grid.Row="1" Margin="5" GridlinesVisibility="None" PreparingRow="Grid_PreparingRow">
<my:DataGrid.Columns>
<my:DataGridTextBoxColumn
DisplayMemberBinding="{Binding Cheese}"
Header="Cheese"></my:DataGridTextBoxColumn>
<my:DataGridTextBoxColumn
DisplayMemberBinding="{Binding Biscuit}"
Header="Biscuit"></my:DataGridTextBoxColumn>
</my:DataGrid.Columns>
</my:DataGrid>
Code:
代码：
this.Grid.AlternatingRowBackground = null;
private void Grid_PreparingRow(object sender, DataGridRowEventArgs e)
{
CheesyClass c = e.Row.DataContext as CheesyClass;
if (c != null && c.Cheese == "cheddar")
{
e.Row.Background = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(255, 255, 125, 125));
}
}
回答by Simon Steele
Actually this won't work in all examples. See these links for the 'proper' way of achieving this
实际上，这不适用于所有示例。有关实现此目的的“正确”方法，请参阅这些链接
http://silverlight.net/forums/p/27465/93474.aspx#93474
http://silverlight.net/forums/p/27465/93474.aspx#93474
回答by Rammesses
I've generally written custom ValueConverters for each data type being bound that return Visibility, Colour, etc.
我通常为每个绑定的数据类型编写自定义 ValueConverters，返回可见性、颜色等。
This gives a single point where the customisation rules are defined and I've found works very well.
这给出了定义自定义规则的一个点，我发现它非常有效。
Robin's second link describes writing a custom ValueConverter.
Robin 的第二个链接描述了编写自定义 ValueConverter。
