feat(Table): make OnAutoFitContentAsync work (#6856)

* refactor: 增加条件提高性能

* feat: 增加 OnAutoFitContentAsync 回调

Author: ArgoZhang

src/BootstrapBlazor/Components/Table/Table.razor.cs

@@ -1065,7 +1065,7 @@ private async Task OnTableRenderAsync(bool firstRender)
             await InvokeVoidAsync("init", Id, Interop, new
             {
                 DragColumnCallback = nameof(DragColumnCallback),
-                AutoFitContentCallback = nameof(AutoFitContentCallback),
+                AutoFitContentCallback = OnAutoFitContentAsync == null ? null : nameof(AutoFitContentCallback),
                 ResizeColumnCallback = OnResizeColumnAsync != null ? nameof(ResizeColumnCallback) : null,
                 ColumnMinWidth = ColumnMinWidth ?? Options.CurrentValue.TableSettings.ColumnMinWidth,
                 ScrollWidth = ActualScrollWidth,

src/BootstrapBlazor/Components/Table/Table.razor.js

@@ -714,7 +714,10 @@ const indexOfCol = col => {
 
 const autoFitColumnWidth = async (table, col) => {
     const field = col.getAttribute('data-bb-field');
-    const widthValue = await table.invoke.invokeMethodAsync(table.options.autoFitContentCallback, field);
+    let widthValue = 0;
+    if (table.options.autoFitContentCallback !== null) {
+        widthValue = await table.invoke.invokeMethodAsync(table.options.autoFitContentCallback, field);
+    }
 
     const index = indexOfCol(col);
     let rows = null;
@@ -725,11 +728,13 @@ const autoFitColumnWidth = async (table, col) => {
         rows = table.tables[0].querySelectorAll('table > tbody > tr:not(.is-detail)');
     }
 
-    let maxWidth = 0;
-    [...rows].forEach(row => {
-        const cell = row.cells[index];
-        maxWidth = Math.max(maxWidth, calcCellWidth(cell));
-    });
+    let maxWidth = widthValue;
+    if (maxWidth === 0) {
+        [...rows].forEach(row => {
+            const cell = row.cells[index];
+            maxWidth = Math.max(maxWidth, calcCellWidth(cell));
+        });
+    }
 
     if (maxWidth > 0) {
         table.tables.forEach(table => {