我是开发新手,我想将插入行的最后一个密钥ID显示到标签中。我有的代码不会将值返回到标签中。将范围ID的值返回到标签
代码,我有:
using (var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Users"].ConnectionString))
{
var cmd = "INSERT INTO Quote (Customer, Date)VALUES (@Customer, @Date);SELECT CAST(scope_identity() AS int)";
using (var insertCommand = new SqlCommand(cmd, conn))
{
int newID;
insertCommand.Parameters.AddWithValue("@Customer", TextBox12.Text);
insertCommand.Parameters.AddWithValue("@Date", DateTime.Now);
conn.Open();
newID = (int)insertCommand.ExecuteScalar();
Label1.Text = newID;
}
}
你有什么看起来像它应该工作 - 从[MSDN](http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.executescalar其直( v = vs.110)的.aspx)。可能尝试在'INSERT INTO'之前添加一个'SET NOCOUNT ON'? – StuartLC