private void btnSearch_Click(object sender, RoutedEventArgs e)
{
List<string> whereList = new List<string>();
List<SqlParameter>paramslist=new List<SqlParameter>();
if(cbSearchByOperator.IsChecked==true)
{
if (cmbOperator.SelectedIndex < 0)
{
MessageBox.Show("请选择操作员");
}
whereList.Add("OperatorId=@OperatorId");
paramslist.Add(new SqlParameter("@OperatorId", cmbOperator.SelectedValue));
}
if (cbSearchByMakeDate.IsChecked == true)
{
whereList.Add("MakeDate Between @BeginDate and @EndDate");
paramslist.Add(new SqlParameter("@BeginDate",dpBeginDate.SelectedDate));
paramslist.Add(new SqlParameter("@EndDate", dpEndDate.SelectedDate));
}
if (cbSearchByAction.IsChecked == true)
{
whereList.Add("ActionDesc like @ActionDesc");
paramslist.Add(new SqlParameter("@ActionDesc",
"%"+txtAcionDesc.Text+"%"));
}
if (whereList.Count <= 0)
{
MessageBox.Show("至少选择一个查询条件");
}
string sql = "select * from T_OperationLog where "
+ string.Join(" and ", whereList);//whereList是一个字符串，它保存了查询条件
T_OperationLog[] logs =
new T_OperationLogDAL().Search(sql, paramslist.ToArray());//转为数组类型
datagrid.ItemsSource = logs;
}