索引(基于零)必须大于或等于零 [英] Index (zero based) must be greater than or equal to zero
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问题描述
嘿,我不断收到一个错误:
索引(从零开始)必须大于参数列表的大小大于或等于零且小于
块引用>我的code:
CMD的OdbcCommand =新的OdbcCommand(SELECT名字,SecondName,Aboutme从用户其中userid = 1,CN);OdbcDataReader读者= cmd.ExecuteReader();
而(reader.Read())
{
Name.Text =的String.Format({0} {1},reader.GetString(0),reader.GetString(1));
Aboutme.Text =的String.Format({2},reader.GetString(0));
}
解决方案你的第二个
的String.Format
使用{2}
作为占位符,但你只传递一个参数,所以你应该使用{0}
代替。更改此:
的String.Format({2},reader.GetString(0));
要这样:
的String.Format({0},reader.GetString(2));
Hey I keep getting an error:
Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
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));
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