当我想检查数据库条目中是否存在程序时,会给我一个错误:
不支持关键字:'datasource'
我的代码:
public bool FindString(string myString)
{
SqlConnection connection = new SqlConnection();
connection.ConnectionString = "datasource=localhost;port=3306;username=admin;password=admin";
SqlCommand command = new SqlCommand();
command.Connection = connection;
command.CommandType = CommandType.StoredProcedure;
command.CommandText = "Create Procedure FindString(@MyString nvarchar(50)) as Begin Select * test.user Where Value = @MyString End";
command.Parameters.AddWithValue("@MyString", myString);
try
{
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
return true;
}
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
finally
{
if (connection.State == ConnectionState.Open)
connection.Close();
}
return false;
}
使用该类的代码:
ReadData r = new ReadData();
if (r.FindString(textBox1.Text))
MessageBox.Show("I Found it!");
else
MessageBox.Show("I can't Find it!");
答案 0 :(得分:2)
关键字“datasource”在ConnectionString配置的上下文中不存在。您应该使用“日期来源”作为两个单独的单词:
connection.ConnectionString = "data source=localhost;port=3306;username=admin;password=admin";
答案 1 :(得分:2)
如果您使用的是MySQL:SqlConnection
适用于SQL Server。请改用MySqlConnection
。
如果您还没有用于MySQL的.Net连接器,可以下载它from here。
答案 2 :(得分:0)
看两个单独的单词here:数据源
答案 3 :(得分:0)
Look here我想你写错了连接字符串。正如@bejger所写,你需要写“数据源”