From e48328af34d8efcb3abd3a2ab29b3b38c6b71764 Mon Sep 17 00:00:00 2001
From: Anthony Dresser <andresse@microsoft.com>
Date: Mon, 26 Nov 2018 14:49:06 -0800
Subject: [PATCH] Handle qp clear input correctly (#3258)

* handle clearing xml in qp view

* formatting
---
 src/sql/parts/queryPlan/queryPlan.ts | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/sql/parts/queryPlan/queryPlan.ts b/src/sql/parts/queryPlan/queryPlan.ts
index 46ee5b1e86..8338ff6510 100644
--- a/src/sql/parts/queryPlan/queryPlan.ts
+++ b/src/sql/parts/queryPlan/queryPlan.ts
@@ -103,13 +103,15 @@ export class QueryPlan {
 	public set xml(xml: string) {
 		this._xml = xml;
 		new Builder(this.container).empty();
-		QP.showPlan(this.container, this._xml, {
-			jsTooltips: false
-		});
-		(<any>this.container.querySelectorAll('div.qp-tt')).forEach(toolTip => {
-			toolTip.classList.add('monaco-editor');
-			toolTip.classList.add('monaco-editor-hover');
-		});
+		if (this.xml) {
+			QP.showPlan(this.container, this._xml, {
+				jsTooltips: false
+			});
+			(<any>this.container.querySelectorAll('div.qp-tt')).forEach(toolTip => {
+				toolTip.classList.add('monaco-editor');
+				toolTip.classList.add('monaco-editor-hover');
+			});
+		}
 	}
 
 	public get xml(): string {