/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Participantes::find();
     // add conditions that should always apply here
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if (!$this->validate()) {
         // uncomment the following line if you do not want to return any records when validation fails
         // $query->where('0=1');
         return $dataProvider;
     }
     // grid filtering conditions
     $query->andFilterWhere(['telefono' => $this->telefono, 'id_comite' => $this->id_comite]);
     $query->andFilterWhere(['like', 'documento', $this->documento])->andFilterWhere(['like', 'tipo_documento', $this->tipo_documento])->andFilterWhere(['like', 'nombres', $this->nombres])->andFilterWhere(['like', 'apellidos', $this->apellidos])->andFilterWhere(['like', 'nombre_entidad', $this->nombre_entidad])->andFilterWhere(['like', 'nit_entidad', $this->nit_entidad])->andFilterWhere(['like', 'cargo', $this->cargo])->andFilterWhere(['like', 'correo', $this->correo]);
     return $dataProvider;
 }