使用ADO调用存储过程

使用ADO调用存储过程

create proc usp_Login

@uname varchar(50),

@password varchar(50),

@result bit output

as

begin

declare @count int

set @count=(select COUNT(*) from T_Users where
FuserName=@uname and

Fpassword=@password)

if @count>0

begin

set @result=1

end

else

begin

set @result=0

end

end

declare @r bit

exec usp_Login 'admin','111',@result=@r output

string username = txtUserName.Text.Trim();

string password = txtPassword.Text.Trim();

string UserConstr = ConfigurationManager.ConnectionStrings["UserDB1conStr"].ConnectionString;

using (SqlConnection conn = new SqlConnection(UserConstr))

{

conn.Open();

using (SqlCommand cmd = conn.CreateCommand())

{

string sp_name = "usp_Login";

cmd.CommandType = CommandType.StoredProcedure;

cmd.CommandText = sp_name;

SqlParameter prm1 = new SqlParameter("@uname", username);

SqlParameter prm2 = new SqlParameter("@password", password);

SqlParameter prm3 = new SqlParameter("@result", System.Data.SqlDbType.Bit);

cmd.Parameters.Add(prm1);

cmd.Parameters.Add(prm2);

cmd.Parameters.Add(prm3);

prm3.Direction = ParameterDirection.Output;

object obj = cmd.ExecuteScalar();

bool b = Convert.ToBoolean(prm3.Value);

if (b)

{

Label2.Text = "登录成功";

}

else

{

Label2.Text="登录失败";

}

}

}