Merge branch 'DEVELOP' of ssh://git.eclipse.org:29418/openk-usermodules/org.eclipse.openk-usermodules.gridFailureInformation.frontend into SI-2942-Radius-0-bei-Filterpopup
diff --git a/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list-column-definition.ts b/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list-column-definition.ts
index d9ff356..eb14ef8 100644
--- a/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list-column-definition.ts
+++ b/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list-column-definition.ts
@@ -214,8 +214,8 @@
     colId: 'radius',
     headerName: 'GridFailure.RadiusInM',
     sortable: true,
-    comparator: sortAlphaNum,
     suppressMovable: true,
+    valueGetter: param => (param.data.radius !== null ? param.data.radius.toString() : null),
     filter: 'setFilterComponent',
   },
   {
diff --git a/projects/grid-failure-information-app/src/app/shared/utility/utilityHelpers.ts b/projects/grid-failure-information-app/src/app/shared/utility/utilityHelpers.ts
index ba97cda..7ddcc1f 100644
--- a/projects/grid-failure-information-app/src/app/shared/utility/utilityHelpers.ts
+++ b/projects/grid-failure-information-app/src/app/shared/utility/utilityHelpers.ts
@@ -109,7 +109,9 @@
 }
 
 export function convertEmptyValueToNull(value: string): string {
-  return !value || value.toString().trim() === '' ? null : value;
+  if (value === null || value.toString().trim() === '') {
+    return null;
+  } else return value;
 }
 
 export function getDependencyPropertyFromControlId(controlId: string): string {