SqlDataSourceCommandType SqlDataSourceCommandType SqlDataSourceCommandType SqlDataSourceCommandType Enum

Definizione

Descrive il tipo di comando SQL utilizzato dai controlli SqlDataSource e AccessDataSource quando viene eseguita un'operazione di database.Describes the type of SQL command used by the SqlDataSource and AccessDataSource controls when performing a database operation.

public enum class SqlDataSourceCommandType
public enum SqlDataSourceCommandType
type SqlDataSourceCommandType = 
Public Enum SqlDataSourceCommandType
Ereditarietà
SqlDataSourceCommandTypeSqlDataSourceCommandTypeSqlDataSourceCommandTypeSqlDataSourceCommandType

Campi

StoredProcedure StoredProcedure StoredProcedure StoredProcedure 1

Il testo contenuto in una proprietà di testo corrispondente è il nome di una stored procedure.The text contained in a corresponding text property is the name of a stored procedure.

Text Text Text Text 0

Il testo contenuto in una proprietà di testo corrispondente è una query SQL o un comando.The text contained in a corresponding text property is a SQL query or command.

Esempi

Nell'esempio di codice seguente viene illustrato come impostare SelectCommand il testo sul nome di un stored procedure e la SelectCommandType proprietà sul valore StoredProcedure per recuperare i dati da un database Microsoft SQL Server e visualizzarli in un DropDownListoggetto.The following code example demonstrates how to set the SelectCommand text to the name of a stored procedure and the SelectCommandType property to the StoredProcedure value to retrieve data from a Microsoft SQL Server database and display it in a DropDownList.

<!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:DropDownList
                id="DropDownList1"
                runat="server"
                DataTextField="LastName"
                DataSourceID="SqlDataSource1" />

            <asp:SqlDataSource
                id="SqlDataSource1"
                runat="server"
                ConnectionString="<%$ ConnectionStrings:MyNorthwind%>"
                SelectCommandType="StoredProcedure"                
                SelectCommand="sp_lastnames">
            </asp:SqlDataSource>

            <!--
                The sp_lastnames stored procedure is
                CREATE PROCEDURE sp_lastnames AS
                   SELECT LastName FROM Employees
                GO
            -->

        </form>
    </body>
</html>
<!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:DropDownList
                id="DropDownList1"
                runat="server"
                DataTextField="LastName"
                DataSourceID="SqlDataSource1" />

            <asp:SqlDataSource
                id="SqlDataSource1"
                runat="server"
                ConnectionString="<%$ ConnectionStrings:MyNorthwind%>"
                SelectCommandType = "StoredProcedure"
                SelectCommand="sp_lastnames">
            </asp:SqlDataSource>

            <!--
                The sp_lastnames stored procedure is
                CREATE PROCEDURE sp_lastnames AS
                   SELECT LastName FROM Employees
                GO
            -->

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

Commenti

L' SqlDataSourceCommandType enumerazione viene utilizzata SqlDataSource dai controlli e AccessDataSource per descrivere SelectCommandil tipo di comando SQL contenuto nelle proprietà, InsertCommand, UpdateCommande DeleteCommand .The SqlDataSourceCommandType enumeration is used by the SqlDataSource and AccessDataSource controls to describe the type of SQL command contained in the SelectCommand, InsertCommand, UpdateCommand, and DeleteCommand properties. Il valore di testo indica che il testo è una query SQL o una stringa di comando mentre il valore StoredProcedure indica che il testo è il nome di un stored procedure.The Text value indicates that the text is a SQL query or command string while the StoredProcedure value indicates that the text is the name of a stored procedure.

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