Winform添加数据，我这样写为什么添加不进去，大家看看?

[zryStar]

using System;
using System.Data.OleDb;
using System.Data;
namespace zzzDemo
{
	/// <summary>
	/// ConnDAO 的摘要说明。
	/// </summary>
	public class ConnDAO
	{
		private  OleDbConnection oConn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=../../OrderSystem.mdb");
		private  OleDbDataAdapter oda  = null;
		private  DataTable dt = new DataTable("Order_Product");
		private  DataTable dt1 = new DataTable("Dictionary");		
		public ConnDAO()
		{   
			oConn.Open();			
			oda = new OleDbDataAdapter("select * from Dictionary",oConn);
			oda.Fill(dt);
		        oConn.Close();
		}		
		
		public DataTable GetDictionary()
		{
			return ds.Tables["Dictionary"];
		}		
		public bool addDictionary(Dictionary dy)
		{			
			
			DataTable dt = this.GetDictionary();
			DataRow dr = dt.NewRow();
			dr["Category"] = dy.Category;
			dr["Value"] = dy.Value;

			dt.Rows.Add(dr);
			int i = oda.Update(ds,"Dictionary");  //调试到这一步就不走了....
			if(i>0)
				return true;
			else
				return false;
		}

	}	
	public class Dictionary
	{
         private string _Category;
		 private string _Value;
		  
		public string Category
		{
			get{return _Category;}
			set{_Category = value;}
		}
		public string Value
		{
			get{return _Value;}
			set{_Value = value;}
		}

	}
}

[zryStar]

呵呵，我是自己写的更新函数，实现JAVA中的MVC模式

[zryStar]

oda.Fill(dt1); //填充为dt1...

[Linzhe423]

我才不用这种方法...
这种我没用过....

[初吻给了烟]

晕啊,你没有UpdateCommand啊,你让它怎么更新啊
public ConnDAO()
{
oConn.Open();
oda = new OleDbDataAdapter("select * from Dictionary",oConn);
oda.UpdateCommand = new UpdateCommand("更新语句");
oda.Fill(dt);
oConn.Close();
}

[liuhz_jsmstc]

你想更新的话，也可以自己写一个更新的函数，在你想更新的时候，随时调用