必须大于或等于零

必须大于或等于零

本文介绍了索引(基于零)必须大于或等于零的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

嘿,我不断收到一个错误:

My code:

OdbcCommand cmd = new OdbcCommand("SELECT FirstName, SecondName, Aboutme FROM User WHERE UserID=1", cn);

OdbcDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
    Name.Text = String.Format("{0} {1}", reader.GetString(0), reader.GetString(1));
    Aboutme.Text = String.Format("{2}", reader.GetString(0));
}
解决方案

Your second String.Format uses {2} as a placeholder but you're only passing in one argument, so you should use {0} instead.

Change this:

String.Format("{2}", reader.GetString(0));

To this:

String.Format("{0}", reader.GetString(2));

这篇关于索引(基于零)必须大于或等于零的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-04 03:08