fix simple bug after pressing close for the MDI button

Jayson Ragasa · Jayson Ragasa · commit e095131f7915 · 2020-05-13T00:19:03.000+08:00
diff --git a/RemoteDesktopClient/Forms/RemoteDesktopClient.cs b/RemoteDesktopClient/Forms/RemoteDesktopClient.cs
@@ -305,7 +305,8 @@ void tabMDIChild_SelectionChanged(object sender, EventArgs e)
 
         void tabMDIChild_ClosePressed(object sender, EventArgs e)
         {
-            this.ActiveMdiChild.Close();
+            if(this.ActiveMdiChild != null)
+                this.ActiveMdiChild.Close();
         }
 
         #endregion

Original file line number	Diff line number	Diff line change
`@@ -305,7 +305,8 @@ void tabMDIChild_SelectionChanged(object sender, EventArgs e)`
`305`	`305`
`306`	`306`	`void tabMDIChild_ClosePressed(object sender, EventArgs e)`
`307`	`307`	`{`
`308`		`- this.ActiveMdiChild.Close();`
	`308`	`+ if(this.ActiveMdiChild != null)`
	`309`	`+ this.ActiveMdiChild.Close();`
`309`	`310`	`}`
`310`	`311`
`311`	`312`	`#endregion`