C# 试图建立连接以读取Access数据库中的文件,出现静态错误
需要从access数据库中提取表名并获取静态错误C# 试图建立连接以读取Access数据库中的文件,出现静态错误,c#,asp.net,C#,Asp.net,需要从access数据库中提取表名并获取静态错误 protected void Button1_Click(object sender, EventArgs e) { System.Data.Common.DbProviderFactory factory = System.Data.Common.DbProviderFactories.GetFactory("System.Data.OleDb"); System.Data.DataTable usersTables = nu
protected void Button1_Click(object sender, EventArgs e)
{
System.Data.Common.DbProviderFactory factory = System.Data.Common.DbProviderFactories.GetFactory("System.Data.OleDb");
System.Data.DataTable usersTables = null;
using (System.Data.OleDb.OleDbConnection connection = System.Data.Common.DbProviderFactory.CreateConnection()) ;
{
connection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = c:\\test\\test.mdb";
string[] restrictions = new string[4];
restrictions[3] = "Table";
connection.Open();
usersTables = connection.GetSchema("Tables", restrictions);
}
List<string> tableNames = new List<string>();
for (int i = 0; i< usersTables.Rows.Count; i++)
tableNames.Add(usersTables.Rows[i][2].ToString());
}
我需要access服务器中的表名列表,但CreateConnection区域出现错误,因为它是非静态字段。如何解决这个问题?您正在尝试使用该类型的静态方法,而不是您创建的实例的方法 将System.Data.Common.DbProviderFactory.CreateConnection替换为factory.CreateConnection: using语句后面还有一个伪分号,必须删除它
using (System.Data.OleDb.OleDbConnection connection = (System.Data.OleDb.OleDbConnection)factory.CreateConnection())