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        QComboBox *cb = new QComboBox(this);
	cb->setInsertPolicy(QComboBox::NoInsert);
	cb->setEditable(true);
	cb->addItem("Проба_1");
	cb->addItem("Проба_2");

        QStringList strlist;
        strlist.append("Проба_1");
	strlist.append("Проба_2");
	QCompleter * completer = new QCompleter(strlist, cb);
	cb->setCompleter(completer);
	cb->setAutoCompletion(true);
	//cb->setEditable(false);
	completer->setCompletionMode(QCompleter::InlineCompletion);

#ifndef COMBOVALIDATOR_H_
#define COMBOVALIDATOR_H_

#include <QtGui/QWidget>
#include <QValidator>
#include <QComboBox>

class ComboValidator : public QValidator
{
public:
	ComboValidator(QWidget* parent=0);
	QValidator::State validate(QString&, int&) const;
	//QStringList strList;
	virtual ~ComboValidator();
};

#endif /*COMBOVALIDATOR_H_*/

#include "ComboValidator.h"

ComboValidator::ComboValidator(QWidget* parent)
  : QValidator(parent)
{
}


QValidator::State ComboValidator::validate(QString& text, int&) const
{
  QString srch = text/*.toUpper()*/;
  if(srch.isEmpty())
	  return Acceptable;
  QComboBox *cb = (QComboBox*)(this->parent());
  for(int i=0; i<cb->count(); i++)
  {
	 if(/*cb->itemText(i).contains(srch, Qt::CaseInsensitive)*/cb->itemText(i).indexOf(srch, 0, Qt::CaseInsensitive) == 0)
	 {
		 return Acceptable;
	 }
  }
  return Invalid;
}

ComboValidator::~ComboValidator()
{
}