48 lines
1.2 KiB
C#
48 lines
1.2 KiB
C#
using Avalonia.Data;
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using Avalonia.Data.Converters;
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using Avalonia.Markup.Xaml;
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using Avalonia.Markup.Xaml.MarkupExtensions;
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using Cowain.Base.Helpers;
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using System.Reflection;
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namespace Cowain.Base.Extensions;
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public class GlobalDataExtensions : MarkupExtension
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{
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private string _key;
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private string? _path;
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public GlobalDataExtensions(string key)
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{
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_key = key;
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}
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public GlobalDataExtensions(string key, string path) : this(key)
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{
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_path = path;
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}
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public override object ProvideValue(IServiceProvider serviceProvider)
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{
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if (string.IsNullOrEmpty(_path))
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{
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var binding = new ReflectionBindingExtension("[" + _key + "]")
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{
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Mode = BindingMode.OneWay,
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Source = GlobalData.Instance
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};
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return binding.ProvideValue(serviceProvider);
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}
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else
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{
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//绑定复杂的对象表达式
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var bindingPath = $"[{_key}].{_path}";
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var binding = new ReflectionBindingExtension(bindingPath)
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{
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Mode = BindingMode.OneWay,
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Source = GlobalData.Instance
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};
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return binding.ProvideValue(serviceProvider);
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}
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}
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}
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