以编程方式为DataGrid中的行指定颜色

Question

我需要为运行时添加到DataTable的行指定一种颜色.如何才能做到这一点？

Answer 1

您可以处理DataGrid的LoadingRow事件以检测何时添加行.在事件处理程序中,您可以获得对DataTow的引用,该DataRow已添加到充当ItemsSource的DataTable中.然后,您可以随意更新DataGridRow的颜色.

void dataGrid_LoadingRow(object sender, Microsoft.Windows.Controls.DataGridRowEventArgs e)
{
    // Get the DataRow corresponding to the DataGridRow that is loading.
    DataRowView item = e.Row.Item as DataRowView;
    if (item != null)
    {
        DataRow row = item.Row;

            // Access cell values values if needed...
            // var colValue = row["ColumnName1]";
            // var colValue2 = row["ColumName2]";

        // Set the background color of the DataGrid row based on whatever data you like from 
        // the row.
        e.Row.Background = new SolidColorBrush(Colors.BlanchedAlmond);
    }           
}

要在XAML中注册活动:

<toolkit:DataGrid x:Name="dataGrid"
    ...
    LoadingRow="dataGrid_LoadingRow">

或者在C#中:

this.dataGrid.LoadingRow += new EventHandler<Microsoft.Windows.Controls.DataGridRowEventArgs>(dataGrid_LoadingRow);

Answer 2

你可以试试这个

在XAML中

<Window.Resources>
<Style TargetType="{x:Type DataGridRow}">
    <Style.Setters>
        <Setter Property="Background" Value="{Binding Path=StatusColor}"></Setter>
    </Style.Setters>            
</Style>
</Window.Resources>

在datagrid中

<DataGrid AutoGenerateColumns="False" CanUserAddRows="False" Name="dtgTestColor" ItemsSource="{Binding}" >
<DataGrid.Columns>                            
    <DataGridTextColumn Header="Valor" Binding="{Binding Path=Valor}"/>
</DataGrid.Columns>
</DataGrid>

在代码中我有一个类

public class ColorRenglon
{
    public string Valor { get; set; }
    public string StatusColor { get; set; }
}

设置DataContext时

dtgTestColor.DataContext = ColorRenglon;
dtgTestColor.Items.Refresh();

如果未设置行的颜色,则默认值为灰色

你可以试试这个样本

List<ColorRenglon> test = new List<ColorRenglon>();
ColorRenglon cambiandoColor = new ColorRenglon();
cambiandoColor.Valor = "Aqui va un color"; 
cambiandoColor.StatusColor = "Red";
test.Add(cambiandoColor);
cambiandoColor = new ColorRenglon();
cambiandoColor.Valor = "Aqui va otro color"; 
cambiandoColor.StatusColor = "PaleGreen";
test.Add(cambiandoColor);