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!801 fix(#I2AMG2): can't open page when set OnSelectedItemChanged value on DropdownList components

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* fix: change OnSelectedItemChanged to Func<TValue, Task>
This commit is contained in:
Argo 2020-12-24 00:54:22 +08:00
parent 30e998d968
commit 7454faae15
2 changed files with 15 additions and 6 deletions
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7
src/BootstrapBlazor.Shared/Pages/DropdownLists.razor.cs
View File

@ -129,6 +129,13 @@ namespace BootstrapBlazor.Shared.Pages
Type = "RenderFragment",
ValueList = " — ",
DefaultValue = " — "
},
new AttributeItem() {
Name = "OnSelectedItemChanged",
Description = "下拉框选择项改变时回调此委托",
Type = "Func<TValue, Task>",
ValueList = " — ",
DefaultValue = " — "
}
};
}

14
src/BootstrapBlazor/Components/DropdownList/DropdownListBase.cs
View File

@ -116,7 +116,7 @@ namespace BootstrapBlazor.Components
/// SelectedItemChanged 方法
/// </summary>
[Parameter]
public EventCallback<TValue> OnSelectedItemChanged { get; set; }
public Func<TValue, Task>? OnSelectedItemChanged { get; set; }
[Inject]
[NotNull]
@ -147,6 +147,8 @@ namespace BootstrapBlazor.Components
}
}
if (Data != null) Data = Data.ToList();
await base.SetParametersAsync(ParameterView.Empty);
}
@ -163,9 +165,9 @@ namespace BootstrapBlazor.Components
/// <summary>
/// OnInitialized 方法
/// </summary>
protected override void OnParametersSet()
protected override async Task OnParametersSetAsync()
{
base.OnParametersSet();
await base.OnParametersSetAsync();
// 双向绑定其他组件更改了数据源值时
if (Data != null && CurrentItem != null && CurrentItem.ToString() != CurrentValueAsString)
@ -193,20 +195,20 @@ namespace BootstrapBlazor.Components
}
}
if (CurrentItem != null && OnSelectedItemChanged.HasDelegate) OnSelectedItemChanged.InvokeAsync(Value);
if (CurrentItem != null && OnSelectedItemChanged != null) await OnSelectedItemChanged(Value);
}
/// <summary>
/// 下拉框选项点击时调用此方法
/// </summary>
protected void OnItemClick(TModel item)
protected async Task OnItemClick(TModel item)
{
CurrentItem = item;
// ValueChanged
CurrentValueAsString = GetValue(item);
if (OnSelectedItemChanged.HasDelegate) OnSelectedItemChanged.InvokeAsync(Value);
if (OnSelectedItemChanged != null) await OnSelectedItemChanged(Value);
}
#nullable disable