Fixed some bugs

.gitignore

@@ -2,4 +2,5 @@ out
 node_modules
 .vscode-test/
 *.vsix
-**/.DS_Store
+**/.DS_Store
+npm-debug.log

package.json

@@ -2,7 +2,7 @@
     "name": "frog",
     "displayName": "Frog",
     "description": "The Oracle SQL workbench for VSCode",
-    "version": "0.0.26",
+    "version": "0.0.28",
     "publisher": "tmuerell",
     "engines": {
         "vscode": "^1.17.0"

src/resultsetview.ts

@@ -65,7 +65,7 @@ export class TextDocumentContentProvider implements vscode.TextDocumentContentPr
         text += this._data['columnDefinitions'].map((x) => `<th>${x['name']}</th>`).join('')
         text += '</tr>'
         text += this._data['rows'].map((r) => 
-            '<tr>' + r['columns'].map((c) => '<td class="' + (c['value'] ? 'value-value' : 'value-null') + '">' + (c['value'] ? c['value'] : 'NULL') + '</td>').join('') + '</tr>'
+            '<tr>' + r['columns'].map((c) => '<td class="' + (c['value'] == null ? 'value-null' : 'value-value') + '">' + (c['value'] == null ? 'NULL' : c['value']) + '</td>').join('') + '</tr>'
         ).join('')
         text += '</table></body>'
         return text;