Question

我有一个包含名称的列的数据表。我想加载带有数据表的组合框，以便名称应按字母顺序排列，例如：名字以a开头。第二个名字以b开头。我如何在datatable中对数据进行排序。任何人都可以帮忙吗？

Answer 1

使用DataView：

DataTable dt; //comes from somewhere...
DataView dv = new DataView(dt)
dv.Sort = "Name ASC";
foreach(DataRowView drv in dv)
    //....

Answer 2

方法1

    // orderby "FistName" column
    EnumerableRowCollection<DataRow> query = 
                    from order in datatable.AsEnumerable()
                    orderby datatable.Field<string>("FirstName")
                    select datatable;

    DataView view = query.AsDataView();

    // bind to your combobox
    combobox.DataSource = view;
    combobox.DataBind()

方法2 ：如果使用DataSet

    DataTable datatable = dataSet.Tables["yourDataTable"];    
    DataView view = datatable .AsDataView();

    view.Sort = "FirstName desc, LastName desc";

    combobox.DataSource = view;
    combobox.DataBind();

参考：Sorting with DataView (LINQ to DataSet)

Answer 3

Here's the answer您正在寻找。

DataTable MyDataTable;
const string SortByClause = "[SomeCol] ASC";
MyDataTable.DefaultView.Sort = SortByClause ;

Answer 4

http://www.dotnetfunda.com/articles/article131.aspx

Answer 5

使用类型化数据集在精确数据类型中创建数据表例如，我创建了一个dsAppointment

 DsAppointment dsAppointmentTmp = new DsAppointment();
 DsAppointment dsAppointment = new DsAppointment();
//add all appointment
 dsAppointmentTmp.Appointment.AddAppointmentRow(name,start,end,body)
//use select(filter,sort(name of columns)
DataRow[] rows1 = dsAppointmentTmp.Tables[0].Select(string.Empty, dsAppointmentTmp.Tables[0].Columns[1].ToString());

            foreach (DataRow thisRow in rows1)
            {
                    dsAppointment.Tables[0].Rows.Add(thisRow.ItemArray);

            }

//返回dsAppointment已排序 return dsAppointment;

对数据表中的项目进行排序

5 个答案: