BindingSource.Sort 属性

参考

定义

命名空间:: System.Windows.Forms

程序集:: System.Windows.Forms.dll

重要

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获取或设置用于排序的列名称以及用于查看数据源中的行的排序顺序。

public:
 property System::String ^ Sort { System::String ^ get(); void set(System::String ^ value); };

public string Sort { get; set; }

public string? Sort { get; set; }

member this.Sort : string with get, set

Public Property Sort As String

属性值

String

一个区分大小写的字符串，它包含列名，后跟“ASC”（升序）或“DESC”（降序）。默认值为 null。

示例

以下示例演示如何使用 Sort 属性对执行基本排序 DataView。若要运行此示例，请将代码粘贴到 Windows 窗体中，然后从窗体的构造函数或Load事件处理方法调用 PopulateDataViewAndSort 。窗体应导入 System.Xml 和 System.IO 命名空间。

private void PopulateDataViewAndSort()
{
    DataSet set1 = new DataSet();

    // Some xml data to populate the DataSet with.
    string musicXml =
        "<?xml version='1.0' encoding='UTF-8'?>" +
        "<music>" +
        "<recording><artist>Coldplay</artist><cd>X&Y</cd></recording>" +
        "<recording><artist>Dave Matthews</artist><cd>Under the Table and Dreaming</cd></recording>" +
        "<recording><artist>Dave Matthews</artist><cd>Live at Red Rocks</cd></recording>" +
        "<recording><artist>Natalie Merchant</artist><cd>Tigerlily</cd></recording>" +
        "<recording><artist>U2</artist><cd>How to Dismantle an Atomic Bomb</cd></recording>" +
        "</music>";

    // Read the xml.
    StringReader reader = new StringReader(musicXml);
    set1.ReadXml(reader);

    // Get a DataView of the table contained in the dataset.
    DataTableCollection tables = set1.Tables;
    DataView view1 = new DataView(tables[0]);

    // Create a DataGridView control and add it to the form.
    DataGridView datagridview1 = new DataGridView();
    datagridview1.AutoGenerateColumns = true;
    this.Controls.Add(datagridview1);

    // Create a BindingSource and set its DataSource property to
    // the DataView.
    BindingSource source1 = new BindingSource();
    source1.DataSource = view1;

    // Set the data source for the DataGridView.
    datagridview1.DataSource = source1;

    source1.Sort = "cd";
}

Private Sub PopulateDataViewAndSort() 
    Dim set1 As New DataSet()
    
    ' Some xml data to populate the DataSet with.
    Dim musicXml As String = "<?xml version='1.0' encoding='UTF-8'?>" & _
        "<music>" & _
        "<recording><artist>Coldplay</artist><cd>X&Y</cd></recording>" & _
        "<recording><artist>Dave Matthews</artist><cd>Under the Table and Dreaming</cd></recording>" & _
        "<recording><artist>Dave Matthews</artist><cd>Live at Red Rocks</cd></recording>" & _
        "<recording><artist>Natalie Merchant</artist><cd>Tigerlily</cd></recording>" & _
        "<recording><artist>U2</artist><cd>How to Dismantle an Atomic Bomb</cd></recording>" & _
         "</music>"
    
    ' Read the xml.
    Dim reader As New StringReader(musicXml)
    set1.ReadXml(reader)
    
    ' Get a DataView of the table contained in the dataset.
    Dim tables As DataTableCollection = set1.Tables
    Dim view1 As New DataView(tables(0))
    
    ' Create a DataGridView control and add it to the form.
    Dim datagridview1 As New DataGridView()
    datagridview1.AutoGenerateColumns = True
    Me.Controls.Add(datagridview1)
    
    ' Create a BindingSource and set its DataSource property to
    ' the DataView.
    Dim source1 As New BindingSource()
    source1.DataSource = view1
    
    ' Set the data source for the DataGridView.
    datagridview1.DataSource = source1
    
    source1.Sort = "cd"

End Sub

以下示例演示如何使用 Sort 属性对执行高级排序 DataView。若要运行此示例，请将代码粘贴到 Windows 窗体中，然后从窗体的构造函数或Load事件处理方法调用 PopulateDataViewAndAdvancedSort 。窗体应导入 System.Xml 和 System.IO 命名空间。

private void PopulateDataViewAndAdvancedSort()
{
    DataSet set1 = new DataSet();

    // Some xml data to populate the DataSet with.
    string musicXml =
        "<?xml version='1.0' encoding='UTF-8'?>" +
        "<music>" +
        "<recording><artist>Dave Matthews</artist><cd>Under the Table and Dreaming</cd></recording>" +
        "<recording><artist>Coldplay</artist><cd>X&Y</cd></recording>" +
        "<recording><artist>Dave Matthews</artist><cd>Live at Red Rocks</cd></recording>" +
        "<recording><artist>U2</artist><cd>Joshua Tree</cd></recording>" +
        "<recording><artist>U2</artist><cd>How to Dismantle an Atomic Bomb</cd></recording>" +
        "<recording><artist>Natalie Merchant</artist><cd>Tigerlily</cd></recording>" +
        "</music>";

    // Read the xml.
    StringReader reader = new StringReader(musicXml);
    set1.ReadXml(reader);

    // Get a DataView of the table contained in the dataset.
    DataTableCollection tables = set1.Tables;
    DataView view1 = new DataView(tables[0]);

    // Create a DataGridView control and add it to the form.
    DataGridView datagridview1 = new DataGridView();
    datagridview1.AutoGenerateColumns = true;
    this.Controls.Add(datagridview1);

    // Create a BindingSource and set its DataSource property to
    // the DataView.
    BindingSource source1 = new BindingSource();
    source1.DataSource = view1;

    // Set the data source for the DataGridView.
    datagridview1.DataSource = source1;

    source1.Sort = "artist ASC, cd ASC";
}

Private Sub PopulateDataViewAndAdvancedSort() 
    Dim set1 As New DataSet()
    
    ' Some xml data to populate the DataSet with.
    Dim musicXml As String = "<?xml version='1.0' encoding='UTF-8'?>" & _
        "<music>" & _
        "<recording><artist>Dave Matthews</artist><cd>Under the Table and Dreaming</cd></recording>" & _
        "<recording><artist>Coldplay</artist><cd>X&Y</cd></recording>" & _
        "<recording><artist>Dave Matthews</artist><cd>Live at Red Rocks</cd></recording>" & _
        "<recording><artist>U2</artist><cd>Joshua Tree</cd></recording>" & _
        "<recording><artist>U2</artist><cd>How to Dismantle an Atomic Bomb</cd></recording>" & _
        "<recording><artist>Natalie Merchant</artist><cd>Tigerlily</cd></recording>" & _
        "</music>"
    
    ' Read the xml.
    Dim reader As New StringReader(musicXml)
    set1.ReadXml(reader)
    
    ' Get a DataView of the table contained in the dataset.
    Dim tables As DataTableCollection = set1.Tables
    Dim view1 As New DataView(tables(0))
    
    ' Create a DataGridView control and add it to the form.
    Dim datagridview1 As New DataGridView()
    datagridview1.AutoGenerateColumns = True
    Me.Controls.Add(datagridview1)
    
    ' Create a BindingSource and set its DataSource property to
    ' the DataView.
    Dim source1 As New BindingSource()
    source1.DataSource = view1
    
    ' Set the data source for the DataGridView.
    datagridview1.DataSource = source1
    
    source1.Sort = "artist ASC, cd ASC"

注解

属性 Sort 是一个区分大小写的字符串，指定用于对行进行排序的列名以及排序方向。默认情况下，列按升序排序。多个列可以用逗号分隔，例如 "State, ZipCode DESC"。

若要支持排序，基础列表必须实现 IBindingList 或 IBindingListView 接口。可以通过属性查询 SupportsSorting 此功能。当属性为 true时，SupportsAdvancedSorting可以使用多列排序。

Sort设置属性将更改内部列表，具体取决于其类型：

如果列表的类型 IBindingList为，则会 IBindingList.SortProperty 在内部列表中设置和 IBindingList.SortDirection 属性。
如果列表的类型 IBindingListView为，则 IBindingListView.SortDescriptions 设置属性。

仅当排序字符串不是 null时，才会更改内部列表的排序属性。 get此属性的访问器不会检索内部列表的排序值;而是返回set访问器值。当数据源发生更改时， Sort 属性的值将保留。

适用于

通过

BindingSource.Sort 属性

定义

属性值

示例

注解

适用于

另请参阅

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