diff --git a/dialogs/dialogincrements.cpp b/dialogs/dialogincrements.cpp
index 7ea38338c..c877ef145 100644
--- a/dialogs/dialogincrements.cpp
+++ b/dialogs/dialogincrements.cpp
@@ -26,6 +26,7 @@
 #include "widgets/doubledelegate.h"
 #include "container/vincrementtablerow.h"
 #include <QDebug>
+#include "exception/vexception.h"
 
 DialogIncrements::DialogIncrements(VContainer *data, VDomDocument *doc, QWidget *parent) :
     DialogTool(data, Draw::Calculation, parent), ui(new Ui::DialogIncrements), data(data), doc(doc){
@@ -41,6 +42,7 @@ DialogIncrements::DialogIncrements(VContainer *data, VDomDocument *doc, QWidget
     FillIncrementTable();
     FillLengthLines();
 
+    connect(ui->tableWidgetIncrement, &QTableWidget::cellChanged, this, &DialogIncrements::cellChanged);
     connect(ui->toolButtonAdd, &QPushButton::clicked, this, &DialogIncrements::clickedToolButtonAdd);
     connect(ui->toolButtonRemove, &QPushButton::clicked, this,
             &DialogIncrements::clickedToolButtonRemove);
@@ -365,8 +367,8 @@ void DialogIncrements::AddIncrementToFile(qint64 id, QString name, qreal base, q
 }
 
 void DialogIncrements::cellChanged ( qint32 row, qint32 column ){
-    QTableWidgetItem *item;
-    QTableWidgetItem *itemName;
+    QTableWidgetItem *item = 0;
+    QTableWidgetItem *itemName = 0;
     qint64 id;
     QDomElement domElement;
     switch(column) {
@@ -386,8 +388,14 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column ){
             id = qvariant_cast<qint64>(itemName->data(Qt::UserRole));
             domElement = doc->elementById(QString().setNum(id));
             if(domElement.isElement()){
-                domElement.setAttribute("base", item->text().toDouble());
-                emit FullUpdateTree();
+                bool ok = false;
+                qreal value = item->text().toDouble(&ok);
+                if(ok){
+                    domElement.setAttribute("base", value);
+                    emit FullUpdateTree();
+                } else {
+                    throw VException(tr("Can't convert toDouble value."));
+                }
             }
             break;
         case 3:
diff --git a/dialogs/dialogincrements.h b/dialogs/dialogincrements.h
index ed357e92a..7f305494c 100644
--- a/dialogs/dialogincrements.h
+++ b/dialogs/dialogincrements.h
@@ -29,38 +29,37 @@ namespace Ui {
 class DialogIncrements;
 }
 
-class DialogIncrements : public DialogTool
-{
+class DialogIncrements : public DialogTool{
     Q_OBJECT   
 public:
-    explicit DialogIncrements(VContainer *data, VDomDocument *doc, QWidget *parent = 0);
-    ~DialogIncrements();
+                         DialogIncrements(VContainer *data, VDomDocument *doc, QWidget *parent = 0);
+                         ~DialogIncrements();
 public slots:
-    void clickedToolButtonAdd();
-    void clickedToolButtonRemove();
-    void cellChanged ( qint32 row, qint32 column );
-    void FullUpdateFromFile();
-    virtual void DialogAccepted();
+    void                 clickedToolButtonAdd();
+    void                 clickedToolButtonRemove();
+    void                 cellChanged ( qint32 row, qint32 column );
+    void                 FullUpdateFromFile();
+    virtual void         DialogAccepted();
 signals:
-    void FullUpdateTree();
-    void haveLiteChange();
+    void                 FullUpdateTree();
+    void                 haveLiteChange();
 private:
     Q_DISABLE_COPY(DialogIncrements)
     Ui::DialogIncrements *ui;
-    VContainer *data; // need because we must change data
-    VDomDocument *doc;
-    void InitialStandartTable();
-    void InitialIncrementTable();
-    void InitialLinesTable();
-    void InitialSplinesTable();
-    void InitialArcsTable();
-    void FillStandartTable();
-    void FillIncrementTable();
-    void FillLengthLines();
-    void FillLengthSplines();
-    void FillLengthArcs();
-    void AddIncrementToFile(qint64 id, QString name, qreal base, qreal ksize, qreal kgrowth,
-                            QString description);
+    VContainer           *data; // need because we must change data
+    VDomDocument         *doc;
+    void                 InitialStandartTable();
+    void                 InitialIncrementTable();
+    void                 InitialLinesTable();
+    void                 InitialSplinesTable();
+    void                 InitialArcsTable();
+    void                 FillStandartTable();
+    void                 FillIncrementTable();
+    void                 FillLengthLines();
+    void                 FillLengthSplines();
+    void                 FillLengthArcs();
+    void                 AddIncrementToFile(qint64 id, QString name, qreal base, qreal ksize, qreal kgrowth,
+                                            QString description);
 };
 
 #endif // DIALOGINCREMENTS_H
diff --git a/widgets/doubledelegate.cpp b/widgets/doubledelegate.cpp
index 3b0932624..0f81b6785 100644
--- a/widgets/doubledelegate.cpp
+++ b/widgets/doubledelegate.cpp
@@ -53,10 +53,8 @@
  {
  }
 
- QWidget *DoubleSpinBoxDelegate::createEditor(QWidget *parent,
-     const QStyleOptionViewItem &/* option */,
-     const QModelIndex &/* index */) const
- {
+ QWidget *DoubleSpinBoxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &/* option */,
+     const QModelIndex &/* index */) const{
      QDoubleSpinBox *editor = new QDoubleSpinBox(parent);
      editor->setMinimum(-1000.0);
      editor->setMaximum(1000.0);
@@ -64,18 +62,15 @@
      return editor;
  }
 
- void DoubleSpinBoxDelegate::setEditorData(QWidget *editor,
-                                     const QModelIndex &index) const
- {
-     int value = index.model()->data(index, Qt::EditRole).toInt();
+ void DoubleSpinBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const{
+     qreal value = index.model()->data(index, Qt::EditRole).toDouble();
 
      QDoubleSpinBox *spinBox = static_cast<QDoubleSpinBox*>(editor);
      spinBox->setValue(value);
  }
 
  void DoubleSpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
-                                    const QModelIndex &index) const
- {
+                                    const QModelIndex &index) const{
      QDoubleSpinBox *spinBox = static_cast<QDoubleSpinBox*>(editor);
      spinBox->interpretText();
      qreal value = spinBox->value();
@@ -84,7 +79,6 @@
  }
 
  void DoubleSpinBoxDelegate::updateEditorGeometry(QWidget *editor,
-     const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
- {
+     const QStyleOptionViewItem &option, const QModelIndex &/* index */) const{
      editor->setGeometry(option.rect);
  }
diff --git a/xml/vdomdocument.cpp b/xml/vdomdocument.cpp
index d31f9b486..2de1c97b2 100644
--- a/xml/vdomdocument.cpp
+++ b/xml/vdomdocument.cpp
@@ -374,7 +374,7 @@ qreal VDomDocument::GetParametrDouble(const QDomElement &domElement, const QStri
     Q_ASSERT_X(!domElement.isNull(), Q_FUNC_INFO, "domElement is null");
     bool ok = false;
     QString parametr = GetParametrString(domElement, name);
-    qreal param = parametr.toDouble(&ok);
+    qreal param = parametr.replace(",", ".").toDouble(&ok);
     if(ok == false){
         throw VExceptionConversionError(tr("Can't convert toDouble parameter"), name);
     }