append data functionality (#13120)

append data functionality

extensions/dacpac/src/test/testContext.ts

@@ -195,6 +195,7 @@ export function createViewContext(): ViewTestContext {
 		data: [] as any[][],
 		columns: [] as string[],
 		onRowSelected: onClick.event,
+		appendData: (data: any[][]) => undefined,
 	});
 
 	let loadingComponent: () => azdata.LoadingComponent = () => Object.assign({}, componentBase, {

extensions/sql-assessment/src/assessmentResultGrid.ts

@@ -121,10 +121,7 @@ export class AssessmentResultGrid implements vscode.Disposable {
 		if (this.dataItems) {
 			this.dataItems.push(...asmtResult.items);
 		}
-
-		await this.table.updateProperties({
-			'data': this.dataItems.map(item => this.convertToDataView(item))
-		});
+		this.table.appendData(asmtResult.items.map(item => this.convertToDataView(item)));
 	}
 
 	private async showDetails(rowNumber: number) {