AccessDataSource Class

Reference

Definition

Namespace:: System.Web.UI.WebControls

Assembly:: System.Web.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Represents a Microsoft Access database for use with data-bound controls.

public ref class AccessDataSource : System::Web::UI::WebControls::SqlDataSource

[System.Drawing.ToolboxBitmap(typeof(System.Web.UI.WebControls.AccessDataSource))]
public class AccessDataSource : System.Web.UI.WebControls.SqlDataSource

[<System.Drawing.ToolboxBitmap(typeof(System.Web.UI.WebControls.AccessDataSource))>]
type AccessDataSource = class
    inherit SqlDataSource

Public Class AccessDataSource
Inherits SqlDataSource

Inheritance: Object

Control

DataSourceControl

SqlDataSource
AccessDataSource

Attributes: ToolboxBitmapAttribute

Examples

The following code example demonstrates a common display and update scenario with the GridView control. The SelectCommand property is set to an appropriate SQL query, and data from the Northwind database is displayed in the GridView control. Because a UpdateCommand property is also specified and the AutoGenerateEditButton property is set to true, you can edit and update the records with no additional code. The GridView control handles adding parameters to the UpdateParameters collection; the GridView control passes the parameter values for the BoundField objects first, followed by the values of fields that are specified by the DataKeyNames property. The GridView calls the Update method automatically. If you want to order the parameters, explicitly, specify an UpdateParameters collection on the AccessDataSource.

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

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

      <asp:accessdatasource
        id="AccessDataSource1"
        runat="server"
        datasourcemode="DataSet"
        datafile="~/App_Data/Northwind.mdb"
        selectcommand="SELECT EmployeeID,FirstName,LastName,Title FROM Employees"
        updatecommand="Update Employees SET FirstName=?,LastName=?,Title=? WHERE EmployeeID=@EmployeeID">
      </asp:accessdatasource>

      <asp:gridview
        id="GridView1"
        runat="server"
        autogeneratecolumns="False"
        datakeynames="EmployeeID"
        autogenerateeditbutton="True"
        datasourceid="AccessDataSource1">
        <columns>
          <asp:boundfield headertext="First Name" datafield="FirstName" />
          <asp:boundfield headertext="Last Name" datafield="LastName" />
          <asp:boundfield headertext="Title" datafield="Title" />
        </columns>
      </asp:gridview>

    </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">

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

      <asp:accessdatasource
        id="AccessDataSource1"
        runat="server"
        datasourcemode="DataSet"
        datafile="~/App_Data/Northwind.mdb"
        selectcommand="SELECT EmployeeID,FirstName,LastName,Title FROM Employees"
        updatecommand="Update Employees SET FirstName=?,LastName=?,Title=? WHERE EmployeeID=@EmployeeID">
      </asp:accessdatasource>

      <asp:gridview
        id="GridView1"
        runat="server"
        autogeneratecolumns="False"
        datakeynames="EmployeeID"
        autogenerateeditbutton="True"
        datasourceid="AccessDataSource1">
        <columns>
          <asp:boundfield headertext="First Name" datafield="FirstName" />
          <asp:boundfield headertext="Last Name" datafield="LastName" />
          <asp:boundfield headertext="Title" datafield="Title" />
        </columns>
      </asp:gridview>

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

Remarks

The AccessDataSource class is a data source control that works with Microsoft Access databases. Like its base class, SqlDataSource, the AccessDataSource control uses SQL queries to perform data retrieval.

One of the unique characteristics of the AccessDataSource control is that you do not set the ConnectionString property. All you need to do is set the location of the Access (.mdb) file in the DataFile property and the AccessDataSource takes care of the underlying connection to the database. You should place Access databases in the App_Data directory of the Web site and reference them by a relative path (for example, ~/App_Data/Northwind.mdb). This location offers additional security for data files, because they are not served if they are requested directly by the client Web browser.

The AccessDataSource class does not support connecting to Access databases that are protected by a user name or password, because you cannot set the ConnectionString property. If your Access database is protected by a user name or password, use the SqlDataSource control to connect to it so that you can specify a complete connection string.

You bind data-bound controls to an AccessDataSource using the DataSourceID property of the data-bound control. For more information about binding a data-bound control to data source controls, see Binding to Data Using a Data Source Control.

Because the AccessDataSource control is specific to only one database product, it always uses the same provider - the System.Data.OleDb .NET data provider. For this reason, the ProviderName property is read-only. When using the System.Data.OleDb provider, the order of the parameters in a parameterized SQL statement is significant; any parameterized SQL queries that you specify in the SelectCommand, UpdateCommand, InsertCommand, and DeleteCommand properties must match the order of any Parameter objects that are in the corresponding parameter collection. If no parameter collection is specified on the AccessDataSource, the order of parameters that are supplied to these operations must match the order in which they appear in the underlying SQL statement. For more information, see Using Parameters with the SqlDataSource Control.

The AccessDataSource control supports the same caching behavior that its base class supports. Use caching to increase the performance of pages that use the AccessDataSource control. For more information about data source caching, see Caching Data Using Data Source Controls.

The following table describes the features of the AccessDataSource control.

Capability	Requirements
Sorting	Set the DataSourceMode property to the DataSet value.
Filtering	Set the FilterExpression property to a filtering expression used to filter the data when the Select method is called.
Paging	The AccessDataSource does not support direct paging operations on an Access database. A data-bound control, such as the GridView, can page over the items returned by the AccessDataSource, if the DataSourceMode property is set to the DataSet value.
Updating	Set the UpdateCommand property to a SQL statement used to update data. This statement is typically parameterized.
Deleting	Set the DeleteCommand property to a SQL statement used to delete data. This statement is typically parameterized.
Inserting	Set the InsertCommand property to a SQL statement used to insert data. This statement is typically parameterized.
Caching	Set the DataSourceMode property to the DataSet value, the EnableCaching property to `true`, and the CacheDuration and CacheExpirationPolicy properties according to the caching behavior you want for your cached data.

As with all data source controls, the AccessDataSource control is associated with a strongly typed data source view class. Just as the AccessDataSource control extends the SqlDataSource control, the AccessDataSourceView class extends the SqlDataSourceView class. The AccessDataSourceView class overrides a few of the SqlDataSourceView methods to use the System.Data.OleDb .NET data provider.

There is no visual rendering of the AccessDataSource control; it is implemented as a control to enable declarative persistence and to permit, optionally, participation in state management. As a result, you cannot set properties that support visual features, such as the EnableTheming and SkinID properties.

Declarative Syntax

<asp:AccessDataSource  
    CacheDuration="string|Infinite"  
    CacheExpirationPolicy="Absolute|Sliding"  
    CacheKeyDependency="string"  
    CancelSelectOnNullParameter="True|False"  
    ConflictDetection="OverwriteChanges|CompareAllValues"  
    DataFile="uri"  
    DataSourceMode="DataReader|DataSet"  
    DeleteCommand="string"  
    DeleteCommandType="Text|StoredProcedure"  
    EnableCaching="True|False"  
    EnableTheming="True|False"  
    EnableViewState="True|False"  
    FilterExpression="string"  
    ID="string"  
    InsertCommand="string"  
    InsertCommandType="Text|StoredProcedure"  
    OldValuesParameterFormatString="string"  
    OnDataBinding="DataBinding event handler"  
    OnDeleted="Deleted event handler"  
    OnDeleting="Deleting event handler"  
    OnDisposed="Disposed event handler"  
    OnFiltering="Filtering event handler"  
    OnInit="Init event handler"  
    OnInserted="Inserted event handler"  
    OnInserting="Inserting event handler"  
    OnLoad="Load event handler"  
    OnPreRender="PreRender event handler"  
    OnSelected="Selected event handler"  
    OnSelecting="Selecting event handler"  
    OnUnload="Unload event handler"  
    OnUpdated="Updated event handler"  
    OnUpdating="Updating event handler"  
    runat="server"  
    SelectCommand="string"  
    SelectCommandType="Text|StoredProcedure"  
    SkinID="string"  
    SortParameterName="string"  
    UpdateCommand="string"  
    UpdateCommandType="Text|StoredProcedure"  
    Visible="True|False"  
>  
        <DeleteParameters>  
                <asp:ControlParameter  
                    ControlID="string"  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|  
                        ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:CookieParameter  
                    ConvertEmptyStringToNull="True|False"  
                    CookieName="string"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|  
                        ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:FormParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    FormField="string"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:Parameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64  
                        |Single|Double|Decimal|DateTime|String"  
                />  
                <asp:ProfileParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:QueryStringParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    QueryStringField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:SessionParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    SessionField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
        </DeleteParameters>  
        <FilterParameters>  
                <asp:ControlParameter  
                    ControlID="string"  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:CookieParameter  
                    ConvertEmptyStringToNull="True|False"  
                    CookieName="string"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:FormParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    FormField="string"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:Parameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:ProfileParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:QueryStringParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    QueryStringField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:SessionParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    SessionField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
        </FilterParameters>  
        <InsertParameters>  
                <asp:ControlParameter  
                    ControlID="string"  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:CookieParameter  
                    ConvertEmptyStringToNull="True|False"  
                    CookieName="string"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:FormParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    FormField="string"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:Parameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:ProfileParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:QueryStringParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    QueryStringField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:SessionParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    SessionField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
        </InsertParameters>  
        <SelectParameters>  
                <asp:ControlParameter  
                    ControlID="string"  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:CookieParameter  
                    ConvertEmptyStringToNull="True|False"  
                    CookieName="string"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:FormParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    FormField="string"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:Parameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:ProfileParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:QueryStringParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    QueryStringField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:SessionParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    SessionField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
        </SelectParameters>  
        <UpdateParameters>  
                <asp:ControlParameter  
                    ControlID="string"  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:CookieParameter  
                    ConvertEmptyStringToNull="True|False"  
                    CookieName="string"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:FormParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    FormField="string"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:Parameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:ProfileParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    PropertyName="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                       Single|Double|Decimal|DateTime|String"  
                />  
                <asp:QueryStringParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    QueryStringField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
                <asp:SessionParameter  
                    ConvertEmptyStringToNull="True|False"  
                    DefaultValue="string"  
                    Direction="Input|Output|InputOutput|ReturnValue"  
                    Name="string"  
                    SessionField="string"  
                    Size="integer"  
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|  
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|  
                        Single|Double|Decimal|DateTime|String"  
                />  
        </UpdateParameters>  
</asp:AccessDataSource>

Constructors

AccessDataSource()	Initializes a new instance of the AccessDataSource class.
AccessDataSource(String, String)	Initializes a new instance of the AccessDataSource class with the specified data file path and Select command.

Properties

Adapter	Gets the browser-specific adapter for the control. (Inherited from Control)
AppRelativeTemplateSourceDirectory	Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control)
BindingContainer	Gets the control that contains this control's data binding. (Inherited from Control)
CacheDuration	Gets or sets the length of time, in seconds, that the data source control caches data that is retrieved by the Select(DataSourceSelectArguments) method. (Inherited from SqlDataSource)
CacheExpirationPolicy	Gets or sets the cache expiration behavior that, when combined with the duration, describes the behavior of the cache that the data source control uses. (Inherited from SqlDataSource)
CacheKeyDependency	Gets or sets a user-defined key dependency that is linked to all data cache objects that are created by the data source control. All cache objects are explicitly expired when the key is expired. (Inherited from SqlDataSource)
CancelSelectOnNullParameter	Gets or sets a value indicating whether a data retrieval operation is canceled when any parameter that is contained in the SelectParameters collection evaluates to `null`. (Inherited from SqlDataSource)
ChildControlsCreated	Gets a value that indicates whether the server control's child controls have been created. (Inherited from Control)
ClientID	Gets the server control identifier generated by ASP.NET. (Inherited from DataSourceControl)
ClientIDMode	This property is not used for data source controls. (Inherited from DataSourceControl)
ClientIDSeparator	Gets a character value representing the separator character used in the ClientID property. (Inherited from Control)
ConflictDetection	Gets or sets the value indicating how the SqlDataSource control performs updates and deletes when data in a row in the underlying database changes during the time of the operation. (Inherited from SqlDataSource)
ConnectionString	Gets the connection string that is used to connect to the Microsoft Access database.
Context	Gets the HttpContext object associated with the server control for the current Web request. (Inherited from Control)
Controls	Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy. (Inherited from DataSourceControl)
DataFile	Gets or sets the location of the Microsoft Access .mdb file.
DataItemContainer	Gets a reference to the naming container if the naming container implements IDataItemContainer. (Inherited from Control)
DataKeysContainer	Gets a reference to the naming container if the naming container implements IDataKeysControl. (Inherited from Control)
DataSourceMode	Gets or sets the data retrieval mode that the SqlDataSource control uses to fetch data. (Inherited from SqlDataSource)
DeleteCommand	Gets or sets the SQL string that the SqlDataSource control uses to delete data from the underlying database. (Inherited from SqlDataSource)
DeleteCommandType	Gets or sets a value indicating whether the text in the DeleteCommand property is an SQL statement or the name of a stored procedure. (Inherited from SqlDataSource)
DeleteParameters	Gets the parameters collection that contains the parameters that are used by the DeleteCommand property from the SqlDataSourceView object that is associated with the SqlDataSource control. (Inherited from SqlDataSource)
DesignMode	Gets a value indicating whether a control is being used on a design surface. (Inherited from Control)
EnableCaching	Gets or sets a value indicating whether the SqlDataSource control has data caching enabled. (Inherited from SqlDataSource)
EnableTheming	Gets a value indicating whether this control supports themes. (Inherited from DataSourceControl)
EnableViewState	Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client. (Inherited from Control)
Events	Gets a list of event handler delegates for the control. This property is read-only. (Inherited from Control)
FilterExpression	Gets or sets a filtering expression that is applied when the Select(DataSourceSelectArguments) method is called. (Inherited from SqlDataSource)
FilterParameters	Gets a collection of parameters that are associated with any parameter placeholders that are in the FilterExpression string. (Inherited from SqlDataSource)
HasChildViewState	Gets a value indicating whether the current server control's child controls have any saved view-state settings. (Inherited from Control)
ID	Gets or sets the programmatic identifier assigned to the server control. (Inherited from Control)
IdSeparator	Gets the character used to separate control identifiers. (Inherited from Control)
InsertCommand	Gets or sets the SQL string that the SqlDataSource control uses to insert data into the underlying database. (Inherited from SqlDataSource)
InsertCommandType	Gets or sets a value indicating whether the text in the InsertCommand property is an SQL statement or the name of a stored procedure. (Inherited from SqlDataSource)
InsertParameters	Gets the parameters collection that contains the parameters that are used by the InsertCommand property from the SqlDataSourceView object that is associated with the SqlDataSource control. (Inherited from SqlDataSource)
IsChildControlStateCleared	Gets a value indicating whether controls contained within this control have control state. (Inherited from Control)
IsTrackingViewState	Gets a value that indicates whether the server control is saving changes to its view state. (Inherited from Control)
IsViewStateEnabled	Gets a value indicating whether view state is enabled for this control. (Inherited from Control)
LoadViewStateByID	Gets a value indicating whether the control participates in loading its view state by ID instead of index. (Inherited from Control)
NamingContainer	Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value. (Inherited from Control)
OldValuesParameterFormatString	Gets or sets a format string to apply to the names of any parameters that are passed to the Delete() or Update() method. (Inherited from SqlDataSource)
Page	Gets a reference to the Page instance that contains the server control. (Inherited from Control)
Parent	Gets a reference to the server control's parent control in the page control hierarchy. (Inherited from Control)
ProviderName	Gets the name of the .NET data provider that the AccessDataSource control uses to connect to a Microsoft Access database.
RenderingCompatibility	Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control)
SelectCommand	Gets or sets the SQL string that the SqlDataSource control uses to retrieve data from the underlying database. (Inherited from SqlDataSource)
SelectCommandType	Gets or sets a value indicating whether the text in the SelectCommand property is an SQL query or the name of a stored procedure. (Inherited from SqlDataSource)
SelectParameters	Gets the parameters collection that contains the parameters that are used by the SelectCommand property from the SqlDataSourceView object that is associated with the SqlDataSource control. (Inherited from SqlDataSource)
Site	Gets information about the container that hosts the current control when rendered on a design surface. (Inherited from Control)
SkinID	Gets the skin to apply to the DataSourceControl control. (Inherited from DataSourceControl)
SortParameterName	Gets or sets the name of a stored procedure parameter that is used to sort retrieved data when data retrieval is performed using a stored procedure. (Inherited from SqlDataSource)
SqlCacheDependency	The SqlCacheDependency property overrides the SqlCacheDependency property.
TemplateControl	Gets or sets a reference to the template that contains this control. (Inherited from Control)
TemplateSourceDirectory	Gets the virtual directory of the Page or UserControl that contains the current server control. (Inherited from Control)
UniqueID	Gets the unique, hierarchically qualified identifier for the server control. (Inherited from Control)
UpdateCommand	Gets or sets the SQL string that the SqlDataSource control uses to update data in the underlying database. (Inherited from SqlDataSource)
UpdateCommandType	Gets or sets a value indicating whether the text in the UpdateCommand property is an SQL statement or the name of a stored procedure. (Inherited from SqlDataSource)
UpdateParameters	Gets the parameters collection that contains the parameters that are used by the UpdateCommand property from the SqlDataSourceView control that is associated with the SqlDataSource control. (Inherited from SqlDataSource)
ValidateRequestMode	Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values. (Inherited from Control)
ViewState	Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page. (Inherited from Control)
ViewStateIgnoresCase	Gets a value that indicates whether the StateBag object is case-insensitive. (Inherited from Control)
ViewStateMode	Gets or sets the view-state mode of this control. (Inherited from Control)
Visible	Gets or sets a value indicating whether the control is visually displayed. (Inherited from DataSourceControl)

Methods

AddedControl(Control, Int32)	Called after a child control is added to the Controls collection of the Control object. (Inherited from Control)
AddParsedSubObject(Object)	Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (Inherited from Control)
ApplyStyleSheetSkin(Page)	Applies the style properties that are defined in the page style sheet to the control. (Inherited from DataSourceControl)
BeginRenderTracing(TextWriter, Object)	Begins design-time tracing of rendering data. (Inherited from Control)
BuildProfileTree(String, Boolean)	Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (Inherited from Control)
ClearCachedClientID()	Sets the cached ClientID value to `null`. (Inherited from Control)
ClearChildControlState()	Deletes the control-state information for the server control's child controls. (Inherited from Control)
ClearChildState()	Deletes the view-state and control-state information for all the server control's child controls. (Inherited from Control)
ClearChildViewState()	Deletes the view-state information for all the server control's child controls. (Inherited from Control)
ClearEffectiveClientIDMode()	Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (Inherited from Control)
CreateChildControls()	Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering. (Inherited from Control)
CreateControlCollection()	Creates a collection to store child controls. (Inherited from DataSourceControl)
CreateDataSourceView(String)	Creates a data source view object that is associated with the data source control.
DataBind()	Binds a data source to the invoked server control and all its child controls. (Inherited from Control)
DataBind(Boolean)	Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event. (Inherited from Control)
DataBindChildren()	Binds a data source to the server control's child controls. (Inherited from Control)
Delete()	Performs a delete operation using the DeleteCommand SQL string and any parameters that are in the DeleteParameters collection. (Inherited from SqlDataSource)
Dispose()	Enables a server control to perform final clean up before it is released from memory. (Inherited from Control)
EndRenderTracing(TextWriter, Object)	Ends design-time tracing of rendering data. (Inherited from Control)
EnsureChildControls()	Determines whether the server control contains child controls. If it does not, it creates child controls. (Inherited from Control)
EnsureID()	Creates an identifier for controls that do not have an identifier assigned. (Inherited from Control)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
FindControl(String, Int32)	Searches the current naming container for a server control with the specified `id` and an integer, specified in the `pathOffset` parameter, which aids in the search. You should not override this version of the FindControl method. (Inherited from Control)
FindControl(String)	Searches the current naming container for a server control with the specified `id` parameter. (Inherited from DataSourceControl)
Focus()	Sets input focus to the control. (Inherited from DataSourceControl)
GetDbProviderFactory()	Retrieves a DbProviderFactory object that is associated with the .NET data provider that is identified by the ProviderName property.
GetDesignModeState()	Gets design-time data for a control. (Inherited from Control)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetRouteUrl(Object)	Gets the URL that corresponds to a set of route parameters. (Inherited from Control)
GetRouteUrl(RouteValueDictionary)	Gets the URL that corresponds to a set of route parameters. (Inherited from Control)
GetRouteUrl(String, Object)	Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control)
GetRouteUrl(String, RouteValueDictionary)	Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control)
GetType()	Gets the Type of the current instance. (Inherited from Object)
GetUniqueIDRelativeTo(Control)	Returns the prefixed portion of the UniqueID property of the specified control. (Inherited from Control)
GetView(String)	Gets the named data source view that is associated with the data source control. (Inherited from SqlDataSource)
GetViewNames()	Gets a collection of names representing the list of view objects that are associated with the SqlDataSource control. (Inherited from SqlDataSource)
HasControls()	Determines if the server control contains any child controls. (Inherited from DataSourceControl)
HasEvents()	Returns a value indicating whether events are registered for the control or any child controls. (Inherited from Control)
Insert()	Performs an insert operation using the InsertCommand SQL string and any parameters that are in the InsertParameters collection. (Inherited from SqlDataSource)
IsLiteralContent()	Determines if the server control holds only literal content. (Inherited from Control)
LoadControlState(Object)	Restores control-state information from a previous page request that was saved by the SaveControlState() method. (Inherited from Control)
LoadViewState(Object)	Loads the state of the properties in the SqlDataSource control that need to be persisted. (Inherited from SqlDataSource)
MapPathSecure(String)	Retrieves the physical path that a virtual path, either absolute or relative, maps to. (Inherited from Control)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
OnBubbleEvent(Object, EventArgs)	Determines whether the event for the server control is passed up the page's UI server control hierarchy. (Inherited from Control)
OnDataBinding(EventArgs)	Raises the DataBinding event. (Inherited from Control)
OnInit(EventArgs)	Adds a LoadComplete event handler to the Page control that contains the SqlDataSource control. (Inherited from SqlDataSource)
OnLoad(EventArgs)	Raises the Load event. (Inherited from Control)
OnPreRender(EventArgs)	Raises the PreRender event. (Inherited from Control)
OnUnload(EventArgs)	Raises the Unload event. (Inherited from Control)
OpenFile(String)	Gets a Stream used to read a file. (Inherited from Control)
RaiseBubbleEvent(Object, EventArgs)	Assigns any sources of the event and its information to the control's parent. (Inherited from Control)
RaiseDataSourceChangedEvent(EventArgs)	Raises the DataSourceChanged event. (Inherited from DataSourceControl)
RemovedControl(Control)	Called after a child control is removed from the Controls collection of the Control object. (Inherited from Control)
Render(HtmlTextWriter)	Sends server control content to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (Inherited from Control)
RenderChildren(HtmlTextWriter)	Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (Inherited from Control)
RenderControl(HtmlTextWriter, ControlAdapter)	Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (Inherited from Control)
RenderControl(HtmlTextWriter)	Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled. (Inherited from DataSourceControl)
ResolveAdapter()	Gets the control adapter responsible for rendering the specified control. (Inherited from Control)
ResolveClientUrl(String)	Gets a URL that can be used by the browser. (Inherited from Control)
ResolveUrl(String)	Converts a URL into one that is usable on the requesting client. (Inherited from Control)
SaveControlState()	Saves any server control state changes that have occurred since the time the page was posted back to the server. (Inherited from Control)
SaveViewState()	Saves the current view state of the SqlDataSource control. (Inherited from SqlDataSource)
Select(DataSourceSelectArguments)	Retrieves data from the underlying database by using the SelectCommand SQL string and any parameters that are in the SelectParameters collection. (Inherited from SqlDataSource)
SetDesignModeState(IDictionary)	Sets design-time data for a control. (Inherited from Control)
SetRenderMethodDelegate(RenderMethod)	Assigns an event handler delegate to render the server control and its content into its parent control. (Inherited from Control)
SetTraceData(Object, Object, Object)	Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value. (Inherited from Control)
SetTraceData(Object, Object)	Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value. (Inherited from Control)
ToString()	Returns a string that represents the current object. (Inherited from Object)
TrackViewState()	Tracks view state changes to the SqlDataSource control so that the changes can be stored in the StateBag object for the control. (Inherited from SqlDataSource)
Update()	Performs an update operation using the UpdateCommand SQL string and any parameters that are in the UpdateParameters collection. (Inherited from SqlDataSource)

Events

DataBinding	Occurs when the server control binds to a data source. (Inherited from Control)
Deleted	Occurs when a delete operation has completed. (Inherited from SqlDataSource)
Deleting	Occurs before a delete operation. (Inherited from SqlDataSource)
Disposed	Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. (Inherited from Control)
Filtering	Occurs before a filter operation. (Inherited from SqlDataSource)
Init	Occurs when the server control is initialized, which is the first step in its lifecycle. (Inherited from Control)
Inserted	Occurs when an insert operation has completed. (Inherited from SqlDataSource)
Inserting	Occurs before an insert operation. (Inherited from SqlDataSource)
Load	Occurs when the server control is loaded into the Page object. (Inherited from Control)
PreRender	Occurs after the Control object is loaded but prior to rendering. (Inherited from Control)
Selected	Occurs when a data retrieval operation has completed. (Inherited from SqlDataSource)
Selecting	Occurs before a data retrieval operation. (Inherited from SqlDataSource)
Unload	Occurs when the server control is unloaded from memory. (Inherited from Control)
Updated	Occurs when an update operation has completed. (Inherited from SqlDataSource)
Updating	Occurs before an update operation. (Inherited from SqlDataSource)

Explicit Interface Implementations

IControlBuilderAccessor.ControlBuilder	For a description of this member, see ControlBuilder. (Inherited from Control)
IControlDesignerAccessor.GetDesignModeState()	For a description of this member, see GetDesignModeState(). (Inherited from Control)
IControlDesignerAccessor.SetDesignModeState(IDictionary)	For a description of this member, see SetDesignModeState(IDictionary). (Inherited from Control)
IControlDesignerAccessor.SetOwnerControl(Control)	For a description of this member, see SetOwnerControl(Control). (Inherited from Control)
IControlDesignerAccessor.UserData	For a description of this member, see UserData. (Inherited from Control)
IDataBindingsAccessor.DataBindings	For a description of this member, see DataBindings. (Inherited from Control)
IDataBindingsAccessor.HasDataBindings	For a description of this member, see HasDataBindings. (Inherited from Control)
IDataSource.DataSourceChanged	Occurs when a data source control has changed in a way that affects data-bound controls. (Inherited from DataSourceControl)
IDataSource.GetView(String)	Gets the named DataSourceView object associated with the DataSourceControl control. Some data source controls support only one view, while others support more than one. (Inherited from DataSourceControl)
IDataSource.GetViewNames()	Gets a collection of names, representing the list of DataSourceView objects associated with the DataSourceControl control. (Inherited from DataSourceControl)
IExpressionsAccessor.Expressions	For a description of this member, see Expressions. (Inherited from Control)
IExpressionsAccessor.HasExpressions	For a description of this member, see HasExpressions. (Inherited from Control)
IListSource.ContainsListCollection	Indicates whether the data source control is associated with one or more lists of data. (Inherited from DataSourceControl)
IListSource.GetList()	Gets a list of data source controls that can be used as sources of lists of data. (Inherited from DataSourceControl)
IParserAccessor.AddParsedSubObject(Object)	For a description of this member, see AddParsedSubObject(Object). (Inherited from Control)

Extension Methods

FindDataSourceControl(Control)	Returns the data source that is associated with the data control for the specified control.
FindFieldTemplate(Control, String)	Returns the field template for the specified column in the specified control's naming container.
FindMetaTable(Control)	Returns the metatable object for the containing data control.
GetDefaultValues(IDataSource)	Gets the collection of the default values for the specified data source.
GetMetaTable(IDataSource)	Gets the metadata for a table in the specified data source object.
TryGetMetaTable(IDataSource, MetaTable)	Determines whether table metadata is available.

Applies to

Megosztás a következőn keresztül: