refactor: 重构代码

Author: ArgoZhang

src/BootstrapBlazor/Components/Upload/UploadBase.cs

@@ -128,7 +128,6 @@ public abstract class UploadBase<TValue> : ValidateBase<TValue>, IUpload
     /// <returns></returns>
     protected async Task OnFileChange(InputFileChangeEventArgs args)
     {
-        UploadFiles.Clear();
         var fileCount = MaxFileCount ?? args.FileCount;
         var items = args.GetMultipleFiles(fileCount).Select(f =>
         {
@@ -234,9 +233,10 @@ protected void Update(UploadFile file)
     /// </summary>
     protected virtual bool CheckCanUpload()
     {
+        // 如果组件禁用了 IsDisabled 允许上传但是不出现 + 按钮
         if (IsDisabled)
         {
-            return false;
+            return true;
         }
 
         // 允许多上传

src/BootstrapBlazor/Extensions/UploadFileExtensions.cs

@@ -54,7 +54,6 @@ public static async Task RequestBase64ImageFileAsync(this UploadFile upload, str
     /// <param name="maxAllowedSize"></param>
     /// <param name="token"></param>
     /// <returns></returns>
-    [ExcludeFromCodeCoverage]
     public static async Task<bool> SaveToFileAsync(this UploadFile upload, string fileName, long maxAllowedSize = 512000, CancellationToken token = default)
     {
         var ret = false;
@@ -130,7 +129,6 @@ public static async Task<bool> SaveToFileAsync(this UploadFile upload, string fi
     /// <param name="maxAllowedSize"></param>
     /// <param name="token"></param>
     /// <returns></returns>
-    [ExcludeFromCodeCoverage]
     public static async Task<byte[]?> GetBytesAsync(this UploadFile upload, string format, int maxWidth, int maxHeight, long maxAllowedSize = 512000, CancellationToken token = default)
     {
         byte[]? ret = null;