添加项目文件。

TechHelper.Client/Pages/Components/Exam/QuestionBase.razor

@@ -0,0 +1,98 @@
+<MudPaper @onclick:stopPropagation>
+	<MudPaper Outlined="false" Elevation="0"
+			  @onclick="HandleClick"
+			  @onmouseover="HandleMouseOver"
+			  @onmouseout="HandleMouseOut">
+
+		@if (IsSelected)
+		{
+
+			<MudIconButton Icon="@Icons.Material.Filled.MoveUp" Color="Color.Success" Size="Size.Small" OnClick="HandleMoveUp" />
+			<MudIconButton Icon="@Icons.Material.Filled.MoveDown" Color="Color.Success" Size="Size.Small" OnClick="HandleMoveDown" />
+			<MudIconButton Icon="@Icons.Material.Filled.Delete" Color="Color.Error" Size="Size.Small" OnClick="HandleDelete" />
+		}
+
+
+		@switch (QuestionElement.QuestionType)
+		{
+			case BaseQuestionType.Text:
+				<Blank IsSelected="IsSelected" QuestionItem="QuestionElement.QuestionItem" />
+				break;
+			case BaseQuestionType.Radio:
+				<RadioChoice IsSelected="IsSelected" QuestionItem="QuestionElement.QuestionItem" />
+				break;
+		}
+
+	</MudPaper>
+</MudPaper>
+
+
+@code {
+
+
+	[Parameter]
+	public QuestionElement QuestionElement { get; set; }
+
+
+	[Parameter]
+	public bool IsSelected { get; set; }
+
+	[Parameter]
+	public EventCallback<int> OnSelected { get; set; }
+
+
+	[Parameter]
+	public EventCallback<int> OnDeleted { get; set; }
+
+	[Parameter]
+	public EventCallback<int> MoveUp { get; set; }
+
+	[Parameter]
+	public EventCallback<int> MoveDown { get; set; }
+
+	private bool _isHovered = false;
+
+	private async Task HandleDelete()
+	{
+		await OnDeleted.InvokeAsync(QuestionElement.Index);
+	}
+
+	private async Task HandleMoveUp()
+	{
+		await MoveUp.InvokeAsync(QuestionElement.Index);
+	}
+
+	private async Task HandleMoveDown()
+	{
+		await MoveDown.InvokeAsync(QuestionElement.Index);
+	}
+
+
+	private async Task HandleClick(MouseEventArgs args)
+	{
+		if (QuestionElement.QuestionItem != null && OnSelected.HasDelegate)
+		{
+
+			await OnSelected.InvokeAsync(QuestionElement.Index);
+		}
+	}
+
+
+	private void HandleMouseOver()
+	{
+		_isHovered = true;
+		StateHasChanged();
+	}
+
+	private void HandleMouseOut()
+	{
+		_isHovered = false;
+		StateHasChanged();
+	}
+
+	private void OnCompeli()
+	{
+		IsSelected = false;
+		StateHasChanged();
+	}
+}