SqlDataAdapter.SelectCommand Property

public:
 property Microsoft::Data::SqlClient::SqlCommand ^ SelectCommand { Microsoft::Data::SqlClient::SqlCommand ^ get(); void set(Microsoft::Data::SqlClient::SqlCommand ^ value); };

public Microsoft.Data.SqlClient.SqlCommand SelectCommand { get; set; }

member this.SelectCommand : Microsoft.Data.SqlClient.SqlCommand with get, set

Public Property SelectCommand As SqlCommand

Property Value

A SqlCommand used during Fill(DataSet) to select records from the database for placement in the DataSet.

Examples

The following example creates a SqlDataAdapter and sets the SelectCommand, InsertCommand, UpdateCommand, and DeleteCommand properties. It assumes you have already created a SqlConnection object.

using System;
using System.Data;
using Microsoft.Data.SqlClient;

class Program
{
 static void Main()
 {
 }

 public static SqlDataAdapter CreateCustomerAdapter(SqlConnection connection)
 {
 SqlDataAdapter adapter = new SqlDataAdapter();

 // Create the SelectCommand.
 SqlCommand command = new SqlCommand("SELECT * FROM Customers " +
 "WHERE Country = @Country AND City = @City", connection);

 // Add the parameters for the SelectCommand.
 command.Parameters.Add("@Country", SqlDbType.NVarChar, 15);
 command.Parameters.Add("@City", SqlDbType.NVarChar, 15);

 adapter.SelectCommand = command;

 // Create the InsertCommand.
 command = new SqlCommand(
 "INSERT INTO Customers (CustomerID, CompanyName) " +
 "VALUES (@CustomerID, @CompanyName)", connection);

 // Add the parameters for the InsertCommand.
 command.Parameters.Add("@CustomerID", SqlDbType.NChar, 5, "CustomerID");
 command.Parameters.Add("@CompanyName", SqlDbType.NVarChar, 40, "CompanyName");

 adapter.InsertCommand = command;

 // Create the UpdateCommand.
 command = new SqlCommand(
 "UPDATE Customers SET CustomerID = @CustomerID, CompanyName = @CompanyName " +
 "WHERE CustomerID = @oldCustomerID", connection);

 // Add the parameters for the UpdateCommand.
 command.Parameters.Add("@CustomerID", SqlDbType.NChar, 5, "CustomerID");
 command.Parameters.Add("@CompanyName", SqlDbType.NVarChar, 40, "CompanyName");
 SqlParameter parameter = command.Parameters.Add(
 "@oldCustomerID", SqlDbType.NChar, 5, "CustomerID");
 parameter.SourceVersion = DataRowVersion.Original;

 adapter.UpdateCommand = command;

 // Create the DeleteCommand.
 command = new SqlCommand(
 "DELETE FROM Customers WHERE CustomerID = @CustomerID", connection);

 // Add the parameters for the DeleteCommand.
 parameter = command.Parameters.Add(
 "@CustomerID", SqlDbType.NChar, 5, "CustomerID");
 parameter.SourceVersion = DataRowVersion.Original;

 adapter.DeleteCommand = command;

 return adapter;
 }
}

Remarks

When SelectCommand is assigned to a previously created SqlCommand, the SqlCommand is not cloned. The SelectCommand maintains a reference to the previously created SqlCommand object.

If the SelectCommand does not return any rows, no tables are added to the DataSet, and no exception is raised.