AccessDataSource 建構函式

參考

定義

命名空間:: System.Web.UI.WebControls

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

初始化 AccessDataSource 類別的新執行個體。

多載

AccessDataSource()	初始化 AccessDataSource 類別的新執行個體。
AccessDataSource(String, String)	使用指定的資料檔案路徑和 Select 命令，初始化 AccessDataSource 類別的新執行個體。

AccessDataSource()

初始化 AccessDataSource 類別的新執行個體。

public:
 AccessDataSource();

public AccessDataSource ();

Public Sub New ()

範例

下列程式碼範例示範如何使用建 AccessDataSource 構函式建立新的 AccessDataSource 資料來源控制項，並將控制項系結 CheckBoxList 至 Microsoft Access 資料庫中的資料。

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
private void Page_Load(Object sender, EventArgs e) {

  // Create the AccessDataSource.
  AccessDataSource accessDS = new AccessDataSource();
  accessDS.SelectCommand = "SELECT SupplierID, CompanyName " +
                           " FROM Suppliers WHERE Country ='Germany'";
  accessDS.DataFile = "~/App_Data/Northwind.mdb";

  // Add the AccessDataSource to the Page.Controls collection.
  Page.Controls.Add(accessDS);

  // In programmatic scenarios, use the DataSource
  // property, not the DataSourceID property. The Select method
  // returns an IEnumerable list of data items.
  CheckBoxList1.DataSource = accessDS;

  // Explicitly call DataBind.
  CheckBoxList1.DataBind();
}
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:CheckBoxList
        id="CheckBoxList1"
        runat="server"
        DataTextField="CompanyName"
        DataValueField="SupplierID">
      </asp:CheckBoxList>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

  ' Create the AccessDataSource.
  Dim accessDS As New AccessDataSource()
  accessDS.SelectCommand = "SELECT SupplierID, CompanyName " & _
                           " FROM Suppliers WHERE Country ='Germany'"
  accessDS.DataFile = "~/App_Data/Northwind.mdb"

  ' Add the AccessDataSource to the Page.Controls collection.
  Page.Controls.Add(accessDS)

  ' In programmatic scenarios, use the DataSource
  ' property, not the DataSourceID property. The Select method
  ' returns an IEnumerable list of data items.
  CheckBoxList1.DataSource = accessDS

  ' Explicitly call DataBind.
  CheckBoxList1.DataBind()

End Sub 'Page_Load
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:CheckBoxList
        id="CheckBoxList1"
        runat="server"
        DataTextField="CompanyName"
        DataValueField="SupplierID">
      </asp:CheckBoxList>

    </form>
  </body>
</html>

另請參閱

資料來源 Web 伺服器控制項

適用於

AccessDataSource(String, String)

使用指定的資料檔案路徑和 Select 命令，初始化 AccessDataSource 類別的新執行個體。

public:
 AccessDataSource(System::String ^ dataFile, System::String ^ selectCommand);

public AccessDataSource (string dataFile, string selectCommand);

new System.Web.UI.WebControls.AccessDataSource : string * string -> System.Web.UI.WebControls.AccessDataSource

Public Sub New (dataFile As String, selectCommand As String)

參數

dataFile: String

Access .mdb 檔的位置。該位置可以是目前 Web form 之資料夾的相對路徑、絕對實體路徑或虛擬路徑。

selectCommand: String

用來從 Access 資料庫擷取資料的 SQL 查詢。如果 SQL 查詢是參數型 SQL 字串，請將 Parameter 物件加入 SelectParameters 集合。

例外狀況

ArgumentNullException

dataFile 為 null 或空字串。

範例

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
private void Page_Load(Object sender, EventArgs e) {

  // Create AccessDataSource
  AccessDataSource accessDS =
    new AccessDataSource("~/App_Data/Northwind.mdb",
                         "SELECT SupplierID, CompanyName " +
                         " FROM Suppliers WHERE Country ='Germany'");

  // Add the AccessDataSource to the Page.Controls collection
  Page.Controls.Add(accessDS);

  // In programmatic scenarios, use the DataSource
  // property, not the DataSourceID property. The Select method
  // returns an IEnumerable list of data items.
  CheckBoxList1.DataSource = accessDS;

  // Explicitly call DataBind
  CheckBoxList1.DataBind();
}
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:CheckBoxList
        id="CheckBoxList1"
        runat="server"
        DataTextField="CompanyName"
        DataValueField="SupplierID">
      </asp:CheckBoxList>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

  ' Create AccessDataSource
  Dim accessDS As New AccessDataSource("~/App_Data/Northwind.mdb", _
                                       "SELECT SupplierID, CompanyName " & _
                                      " FROM Suppliers WHERE Country ='Germany'")

  ' Add the AccessDataSource to the Page.Controls collection
  Page.Controls.Add(accessDS)

  ' In programmatic scenarios, use the DataSource
  ' property, not the DataSourceID property. The Select method
  ' returns an IEnumerable list of data items.
  CheckBoxList1.DataSource = accessDS

  ' Explicitly call DataBind
  CheckBoxList1.DataBind()

End Sub 'Page_Load
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:CheckBoxList
        id="CheckBoxList1"
        runat="server"
        DataTextField="CompanyName"
        DataValueField="SupplierID">
      </asp:CheckBoxList>

    </form>
  </body>
</html>

另請參閱

適用於

AccessDataSource 建構函式

定義

多載

AccessDataSource()

範例

另請參閱

適用於

AccessDataSource(String, String)

參數

例外狀況

範例

另請參閱

適用於

其他資源