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MAUI ListView alternative row background colour
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| namespace SomeNamespace.Converters | |
| { | |
| using System; | |
| using System.Globalization; | |
| using Microsoft.Maui.Controls; | |
| using Microsoft.Maui.Graphics; | |
| using Syncfusion.Maui.ListView; | |
| public class AlternativeRowColorConverter : BindableObject, IValueConverter | |
| { | |
| public static readonly BindableProperty PrimaryColorProperty = | |
| BindableProperty.Create(nameof(PrimaryColor), typeof(string), typeof(AlternativeRowColorConverter), null); | |
| public static readonly BindableProperty SecondaryColorProperty = | |
| BindableProperty.Create(nameof(SecondaryColor), typeof(string), typeof(AlternativeRowColorConverter), null); | |
| public string PrimaryColor | |
| { | |
| get => (string)GetValue(PrimaryColorProperty); | |
| set => SetValue(PrimaryColorProperty, value); | |
| } | |
| public string SecondaryColor | |
| { | |
| get => (string)GetValue(SecondaryColorProperty); | |
| set => SetValue(SecondaryColorProperty, value); | |
| } | |
| public object Convert(object value, Type targetType, object parameter, CultureInfo culture) | |
| { | |
| try | |
| { | |
| if (Equals(value, null)) | |
| { | |
| return GetNamedResourceColor(PrimaryColor); | |
| } | |
| var listview = parameter as SfListView; | |
| return listview.DataSource.DisplayItems.IndexOf(value) % 2 == 0 ? GetNamedResourceColor(PrimaryColor) : GetNamedResourceColor(SecondaryColor); | |
| } | |
| catch (Exception ex) | |
| { | |
| return GetNamedResourceColor(PrimaryColor); | |
| } | |
| } | |
| public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) | |
| { | |
| return value; | |
| } | |
| private static Color GetNamedResourceColor(string resourceName) | |
| { | |
| Application.Current!.Resources.TryGetValue(resourceName, out var resource); | |
| if (resource != null) | |
| { | |
| return (Color)resource; | |
| } | |
| var black = "0,0,0"; | |
| return Color.FromArgb(black); | |
| } | |
| } | |
| } |
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| <Grid> | |
| <Maui:SfListView | |
| x:Name="ListView"> | |
| <Maui:SfListView.ItemTemplate> | |
| <DataTemplate> | |
| <Grid> | |
| <Grid.BackgroundColor> | |
| <Binding | |
| Path="." | |
| ConverterParameter="{x:Reference ListView}"> | |
| <Binding.Converter> | |
| <converters:AlternativeRowColorConverter | |
| PrimaryColor="PrimaryBackgroundColor" | |
| SecondaryColor="SecondaryBackgroundColor" /> | |
| </Binding.Converter> | |
| </Binding> | |
| </Grid.BackgroundColor> | |
| </Grid> | |
| </DataTemplate> | |
| </Maui:SfListView.ItemTemplate> | |
| </Maui:SfListView> | |
| </Grid> |
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