60 lines
1.2 KiB
Plaintext
60 lines
1.2 KiB
Plaintext
@typeparam TField
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@inherits InputBase<TField>
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<select class="form-select" @bind="Binding">
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@foreach(var item in Items)
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{
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<option value="@(item!.GetHashCode())">@(DisplayField(item))</option>
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}
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</select>
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@code
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{
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[Parameter]
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public TField[] Items { get; set; }
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[Parameter]
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public Func<TField, string> DisplayField { get; set; }
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protected override void OnInitialized()
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{
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}
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protected override string? FormatValueAsString(TField? value)
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{
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if (value == null)
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return null;
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return DisplayField.Invoke(value);
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}
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protected override bool TryParseValueFromString(string? value, out TField result, out string? validationErrorMessage)
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{
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validationErrorMessage = "";
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result = default(TField)!;
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return false;
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}
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private int Binding
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{
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get
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{
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if (Value == null)
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return -1;
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return Value.GetHashCode();
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}
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set
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{
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var i = Items.FirstOrDefault(x => x!.GetHashCode() == value);
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if (i != null)
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{
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Value = i;
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ValueChanged.InvokeAsync(i);
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}
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}
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}
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}
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