diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index 9aed141..d3fa953 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -394,7 +394,7 @@ export class FormJdbc extends BI.Widget {
                             forms: [{
                                 type: TextCheckerXtype,
                                 width: 300,
-                                allowBlank: true,
+                                allowBlank: false,
                                 value: initialSize,
                                 validationChecker: [{
                                     errorText: BI.i18nText('Dec-Dcm_Connection_Check_Integer'),
@@ -413,7 +413,7 @@ export class FormJdbc extends BI.Widget {
                             forms: [{
                                 type: TextCheckerXtype,
                                 width: 300,
-                                allowBlank: true,
+                                allowBlank: false,
                                 value: maxActive,
                                 watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Max_Active'),
                                 validationChecker: [{
@@ -432,7 +432,7 @@ export class FormJdbc extends BI.Widget {
                             forms: [{
                                 type: TextCheckerXtype,
                                 width: 300,
-                                allowBlank: true,
+                                allowBlank: false,
                                 value: maxIdle,
                                 watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Max_Idle'),
                                 validationChecker: [{
@@ -451,7 +451,7 @@ export class FormJdbc extends BI.Widget {
                             forms: [{
                                 type: TextCheckerXtype,
                                 width: 300,
-                                allowBlank: true,
+                                allowBlank: false,
                                 value: minIdle,
                                 watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Min_Idle'),
                                 validationChecker: [{
@@ -471,7 +471,7 @@ export class FormJdbc extends BI.Widget {
                                 {
                                     type: TextCheckerXtype,
                                     width: 300,
-                                    allowBlank: true,
+                                    allowBlank: false,
                                     value: maxWait,
                                     watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Max_Wait'),
                                     validationChecker: [{
@@ -558,7 +558,7 @@ export class FormJdbc extends BI.Widget {
                                 {
                                     type: TextCheckerXtype,
                                     width: 300,
-                                    allowBlank: true,
+                                    allowBlank: false,
                                     value: timeBetweenEvictionRunsMillis,
                                     watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Test_Between_Eviction_Millis'),
                                     validationChecker: [{
@@ -583,7 +583,7 @@ export class FormJdbc extends BI.Widget {
                             forms: [{
                                 type: TextCheckerXtype,
                                 width: 300,
-                                allowBlank: true,
+                                allowBlank: false,
                                 value: numTestsPerEvictionRun,
                                 watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Tests_PerEviction_Run_Num'),
                                 validationChecker: [{
@@ -603,7 +603,7 @@ export class FormJdbc extends BI.Widget {
                                 {
                                     type: TextCheckerXtype,
                                     width: 300,
-                                    allowBlank: true,
+                                    allowBlank: false,
                                     value: minEvictableIdleTimeMillis,
                                     watermark: BI.i18nText('Dec-Dcm_Connection_Form_Database_Min_Evictable_Idle_Time_Millis'),
                                     validationChecker: [{