c# - 是否可以使用 C# 在 SQLite 中获取列名(标题)？

Question

如果表和列是在 sqlite 中生成的代码“背后”，是否有可能获得列名(标题)？

试过了但是失败了:

SQLiteCommand cmd = new SQLiteCommand();

string sSQL = "Select * from tblUser Where username = '" + txtUsername.Text + "'";
cmd.CommandText = sSQL;
cmd.Connection = clsCon.con;
SQLiteDataReader dr2;
dr2 = cmd.ExecuteReader();
string columnName = dr2.GetName(1);
dr2.Read();

if (dr2.HasRows)
{
    MessageBox.Show("Username Already Exist!", "SQLite Test Application", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
    txtUsername.Focus();
}

Answer 1

1) 确保数据库已打开

2) 确保命令与连接 Hook

3) 确保你没有收到任何错误

4) 遍历列名

var cmd = new SQLiteCommand("select * from t1", db);
var dr = cmd.ExecuteReader();
for (var i = 0; i < dr.FieldCount; i++)
{
    Console.WriteLine(dr.GetName(i));
}