From 78d6f02765a313ba9c511a629a47f9669a01837f Mon Sep 17 00:00:00 2001
From: Julia Radzhabova <Julia.Radzhabova@onlyoffice.com>
Date: Mon, 15 Jan 2024 22:35:47 +0300
Subject: [PATCH] [SSE] Fix Bug 65882

---
 .../main/app/view/FillSeriesDialog.js             | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/apps/spreadsheeteditor/main/app/view/FillSeriesDialog.js b/apps/spreadsheeteditor/main/app/view/FillSeriesDialog.js
index 3dec4bfa73..195fcc08d7 100644
--- a/apps/spreadsheeteditor/main/app/view/FillSeriesDialog.js
+++ b/apps/spreadsheeteditor/main/app/view/FillSeriesDialog.js
@@ -242,6 +242,10 @@ define([
             }).on('changed:after', function() {
                 me.isStepChanged = true;
             });
+            this.inputStep._input.on('input', function (e) {
+                me.isInputStepFirstChange && me.inputStep.showError();
+                me.isInputStepFirstChange = false;
+            });
 
             this.inputStop = new Common.UI.InputField({
                 el               : $window.find('#fill-input-stop-value'),
@@ -251,6 +255,10 @@ define([
             }).on('changed:after', function() {
                 me.isStopChanged = true;
             });
+            this.inputStop._input.on('input', function (e) {
+                me.isInputStopFirstChange && me.inputStop.showError();
+                me.isInputStopFirstChange = false;
+            });
 
             this.afterRender();
         },
@@ -330,21 +338,24 @@ define([
         },
 
         isValid: function() {
+            var regstr = new RegExp('^\s*[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)\s*$');
             if (this.isStepChanged) {
                 var value = this.inputStep.getValue();
                 (typeof value === 'string') && (value = value.replace(',','.'));
-                if (value!=='' && isNaN(parseFloat(value))) {
+                if (value!=='' && (!regstr.test(value.trim()) || isNaN(parseFloat(value)))) {
                     this.inputStep.showError([this.txtErrorNumber]);
                     this.inputStep.focus();
+                    this.isInputStepFirstChange = true;
                     return false;
                 }
             }
             if (this.isStopChanged) {
                 var value = this.inputStop.getValue();
                 (typeof value === 'string') && (value = value.replace(',','.'));
-                if (value!=='' && isNaN(parseFloat(value))) {
+                if (value!=='' && (!regstr.test(value.trim()) || isNaN(parseFloat(value)))) {
                     this.inputStop.showError([this.txtErrorNumber]);
                     this.inputStop.focus();
+                    this.isInputStopFirstChange = true;
                     return false;
                 }
             }