65 lines
2.0 KiB
C#
65 lines
2.0 KiB
C#
using Microsoft.AspNetCore.Html;
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using System.Collections;
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namespace YLErp.Web
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{
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public static class HtmlExtensions
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{
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/// <summary>
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/// 序列化对象到htmlstring，处理了对象为null时的情况
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/// </summary>
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public static IHtmlContent JsonSerialize<T>(this IHtmlHelper helper, T value, bool ignoreNullValue = true, bool camelCase = false)
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{
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if (value == null)
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{
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var type = typeof(T);
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var untype = Nullable.GetUnderlyingType(type);
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if (untype != null)
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{
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type = untype;
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}
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if (type.IsValueType)
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{
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var val = Activator.CreateInstance(type);
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return new HtmlString(JsonHelper.ToJson(val));
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}
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if (type.IsArray || typeof(IEnumerable).IsAssignableFrom(type))
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{
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return new HtmlString("[]");
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}
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return new HtmlString("{}");
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}
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return new HtmlString(JsonHelper.ToJson(value, ignoreNullValue, camelCase));
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}
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/// <summary>
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///
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/// </summary>
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public static SelectListItem AsSelectListItem(this SelectItem selectItem)
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{
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return selectItem != null ? new SelectListItem
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{
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Disabled = selectItem.Disabled,
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Selected = selectItem.Selected,
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Text = selectItem.Text,
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Value = selectItem.Value
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} : null;
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}
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/// <summary>
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///
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/// </summary>
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public static List<SelectListItem> AsSelectListItems(this IEnumerable<SelectItem> selectItems)
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{
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return selectItems?.Select(n => new SelectListItem
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{
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Disabled = n.Disabled,
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Selected = n.Selected,
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Text = n.Text,
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Value = n.Value
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}).ToList();
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}
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}
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}
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