本文整理汇总了C#中System.Data.SqlClient.SqlDataAdapter.DeleteCommand属性的典型用法代码示例。如果您正苦于以下问题：C# SqlDataAdapter.DeleteCommand属性的具体用法？C# SqlDataAdapter.DeleteCommand怎么用？C# SqlDataAdapter.DeleteCommand使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Data.SqlClient.SqlDataAdapter的用法示例。
在下文中一共展示了SqlDataAdapter.DeleteCommand属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CreateCustomerAdapter
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;
}示例2: Main
//引入命名空间
using System;
using System.Data;
using System.Data.SqlClient;
class PropagateDeletes {
static void Main() {
string connString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI";
string qry = @"select * from employee ";
string del = @"delete from employee where id = @id";
SqlConnection conn = new SqlConnection(connString);
try {
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = new SqlCommand(qry, conn);
DataSet ds = new DataSet();
da.Fill(ds, "employee");
DataTable dt = ds.Tables["employee"];
SqlCommand cmd = new SqlCommand(del, conn);
cmd.Parameters.Add("@id",SqlDbType.Int, 4, "id");
string filt = @"firstname = 'o' and lastname = 'B'";
foreach (DataRow row in dt.Select(filt)) {
row.Delete();
}
da.DeleteCommand = cmd;
da.Update(ds, "employee");
foreach (DataRow row in dt.Rows) {
Console.WriteLine(
"{0} {1}",
row["firstname"].ToString().PadRight(15),
row["lastname"].ToString().PadLeft(25));
}
} catch(Exception e) {
Console.WriteLine("Error: " + e);
} finally {
conn.Close();
}
}
}